10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C.  20549 FORM 10-Q (Mark one)
[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended:  June 30, 2012 Or
[   ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from___ to ___
Commission file number 1-31993
STERLING CONSTRUCTION COMPANY, INC. (Exact name of registrant as specified in its charter)
DELAWARE	25-1655321
State or other jurisdiction of incorporation or organization	(I.R.S. Employer Identification No.)
20810 Fernbush Lane Houston, Texas	77073
(Address of principal executive office)	(Zip Code)
Registrant’s telephone number, including area code  (281) 821-9091
(Former name, former address and former fiscal year, if changed from last report)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days. [√]  Yes   [  ]  No Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).                                                     [√]  Yes   [  ]  No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filer   [  ]                                                              Accelerated filer  [√] Non-accelerated filer     [  ]                                                              Smaller reporting company  [  ] (Do not check if a smaller reporting company)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).                                                                                                                      [  ]  Yes   [√]  No
At July 31, 2012, there were 16,393,716 shares outstanding of the issuer’s common stock, par value $0.01 per share.

1

STERLING CONSTRUCTION COMPANY, INC.

QUARTERLY REPORT ON FORM 10-Q

TABLE OF CONTENTS

PART I.  FINANCIAL INFORMATION
	ITEM 1.	FINANCIAL STATEMENTS	3
	ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	21
	ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK	32
	ITEM 4.	CONTROLS AND PROCEDURES	32
PART II – OTHER INFORMATION
	ITEM 1.	LEGAL PROCEEDINGS	33
	ITEM 1A.	RISK FACTORS	33
	ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	33
	ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	33
	ITEM 4.	MINE SAFETY DISCLOSURES	33
	ITEM 5.	OTHER INFORMATION	33
	ITEM 6.	EXHIBITS	34
SIGNATURES			35

2

PART I

Item 1. Financial Statements

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in thousands, except share and per share data)
 

	June 30, 2012		December 31, 2011
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	19,112	$	16,371
Short-term investments		49,676		44,855
Contracts receivable, including retainage		88,788		74,875
Costs and estimated earnings in excess of billings on uncompleted contracts		16,131		16,509
Inventories		3,547		1,922
Deferred tax asset, net		666		1,302
Receivables from and equity in construction joint ventures		6,889		6,057
Other current assets		5,032		2,132
Total current assets		189,841		164,023
Property and equipment, net		102,403		83,429
Goodwill		54,460		54,050
Other assets, net		6,178		2,329
Total assets	$	352,882	$	303,831
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	62,272	$	40,064
Billings in excess of costs and estimated earnings on uncompleted contracts		24,437		18,583
Current maturities of long-term debt		573		573
Income taxes payable		5		2,013
Accrued compensation		7,419		5,329
Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures		21,800		--
Other current liabilities		4,367		2,723
Total current liabilities		120,873		69,285
Long-term liabilities:
Long-term debt, net of current maturities		268		263
Deferred tax liability, net		368		--
Other long-term liabilities		2,417		2,597
Total long-term liabilities		3,053		2,860
Commitments and contingencies (Note 7)
Obligation for noncontrolling owners’ interests in subsidiaries and joint ventures		18,369		16,848
Equity:
Sterling stockholders’ equity:
Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued		--		--
Common stock, par value $0.01 per share; 19,000,000 shares authorized, 16,393,716 and 16,321,116 shares issued		163		163
Additional paid in capital		196,325		196,143
Retained earnings		11,818		16,509
Accumulated other comprehensive income		498		496
Total Sterling common stockholders’ equity		208,804		213,311
Noncontrolling interests		1,783		1,527
Total equity		210,587		214,838
Total liabilities and equity	$	352,882	$	303,831

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

 (Amounts in thousands, except share and per share data)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
Revenues	$	168,709		$	128,498		$	267,134		$	227,740
Cost of revenues		(153,550	)		(114,916	)		(250,103	)		(206,559	)
Gross profit		15,159			13,582			17,031			21,181
General and administrative expenses		(8,444	)		(6,300	)		(16,110	)		(12,356	)
Other operating income (expense), net		1,525			5			2,756			150
Operating income		8,240			7,287			3,677			8,975
Gain (loss) on sale of securities and other		333			(41	)		1,083			(245	)
Interest income		511			565			927			943
Interest expense		(432	)		(374	)		(818	)		(588	)
Income before income taxes and earnings attributable to noncontrolling interests		8,652			7,437			4,869			9,085
Income tax benefit (expense)		(984	)		(1,145	)		2,992			(1,311	)
Net income		7,668			6,292			7,861			7,774
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures		(4,381	)		(2,081	)		(12,076	)		(3,519	)
Net income (loss) attributable to Sterling common stockholders	$	3,287		$	4,211		$	(4,215	)	$	4,255
Net income (loss) per share attributable to Sterling common stockholders:
Basic	$	0.15		$	0.26		$	(0.29	)	$	0.26
Diluted	$	0.15		$	0.25		$	(0.29	)	$	0.26
Weighted average number of common shares outstanding used in computing per share amounts:
Basic		16,359,597			16,483,691			16,341,037			16,474,074
Diluted		16,444,324			16,594,509			16,341,037			16,604,368

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

 (Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2012			2011
Net income (loss) attributable to Sterling common stockholders	$	(4,215	)	$	4,255
Net income attributable to noncontrolling interest included in equity		296			--
Net income attributable to noncontrolling interest included in liabilities		11,780			3,519
Add /(deduct) other comprehensive income, net of tax:
Realized (gain) loss from available-for-sale securities		(326	)		143
Change in unrealized holding gain (loss) on available-for-sale securities		312			122
Realized loss from settlement of derivatives		29			8
Change in the effective portion of unrealized gain (loss) in fair market value of derivatives		(13	)		(133	)
Comprehensive income	$	7,863		$	7,914

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

FOR THE SIX MONTHS ENDED JUNE 30, 2012

(Amounts in thousands)

(Unaudited)

	STERLING CONSTRUCTION COMPANY, INC. STOCKHOLDERS
	Common Stock				Treasury Stock				Addi- tional Paid in			Retained			Accu- mulated Other Compre- hensive		Noncontrolling
	Shares		Amount		Shares		Amount		Capital			Earnings			Income		Interests			Total
Balance at January 1, 2012		16,321	$	163		--	$	--	$	196,143		$	16,509		$	496	$	1,527		$	214,838
Net income (loss)		--		--		--		--		--			(4,215	)		--		296			(3,919	)
Other comprehensive income		--		--		--		--		--			--			2		--			2
Stock issued upon option exercises		23		--		--		--		47			--			--		--			47
Tax impact from exercise of stock options		--		--		--		--		(129	)		--			--		--			(129	)
Issuance and amortization of restricted stock		50		--		--		--		264			--			--		--			264
Revaluation of noncontrolling interest RLW put/call liability and other, net of tax		--		--		--		--		--			(476	)		--		(40	)		(516	)
Balance at June 30, 2012		16,394	$	163		--	$	--	$	196,325		$	11,818		$	498	$	1,783		$	210,587

The accompanying notes are an integral part of these condensed consolidated financial statements.

6

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in thousands)

(Unaudited)

	Six Months Ended June 30,
	2012			2011
Net income (loss) attributable to Sterling common stockholders	$	(4,215	)	$	4,255
Plus: Noncontrolling  owners’ interests in earnings of subsidiaries and joint ventures		12,076			3,519
Net income		7,861			7,774
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		9,384			8,436
Gain on disposal of property and equipment		(2,724	)		(154	)
Deferred tax expense (benefit)		(3,136	)		1,665
Stock-based compensation expense		264			258
Interest expense accreted on noncontrolling interests		497			424
Loss (gain) on sale of securities and other		(696	)		245
Tax impact from exercise of stock options		129			--
Other changes in operating assets and liabilities:
Increase in contracts receivable		(13,913	)		(7,334	)
(Increase) decrease in costs and estimated earnings in excess of billings on uncompleted contracts		378			(9,382	)
Increase in income tax receivable		--			(1,131	)
(Increase) decrease in prepaid expenses and other assets		(3,986	)		203
(Increase) decrease in receivables from and equity in construction joint ventures		(832	)		834
Increase in trade payables		22,208			3,148
Increase in billings in excess of costs and estimated earnings on uncompleted contracts		5,854			1,217
Increase in accrued compensation and other liabilities		1,843			365
Net cash provided by operating activities		23,131			6,568
Cash flows from investing activities:
Additions to property and equipment		(17,856	)		(15,171	)
Proceeds from sale of property and equipment		6,847			564
Purchases of short-term securities, available for sale		(19,083	)		(83,162	)
Sales of short-term securities, available for sale		14,742			58,601
Net cash used in investing activities		(15,350	)		(39,168	)
Cash flows from financing activities:
Cumulative daily drawdowns – Credit Facility		3,000			2,000
Cumulative daily repayments – Credit Facility		(3,000	)		(2,000	)
Repayments under long-term obligations		(73	)		(37	)
Purchases of treasury stock		--			(1,841	)
Issuance of common stock pursuant to warrants and options exercised		47			122
Distributions to noncontrolling interest owners		(4,885	)		(4,818	)
Utilization of tax impact from exercise of stock options		(129	)		--
Net cash used in financing activities		(5,040	)		(6,574	)
Net increase (decrease) in cash and cash equivalents		2,741			(39,174	)
Cash and cash equivalents at beginning of period		16,371			49,441
Cash and cash equivalents at end of period	$	19,112		$	10,267
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	$	534		$	64
Cash paid during the period for income taxes	$	2,755		$	2,029
Non-cash items:
Revaluation of noncontrolling interest – RLW put/call liability, net of tax	$	476		$	--
Reclassification of amounts payable to noncontrolling interest owner	$	--		$	1,054
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies	$	15,196		$	--

The accompanying notes are an integral part of these condensed consolidated financial statements.

7

STERLING CONSTRUCTION COMPANY, INC. & SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.   Summary of Business and Significant Accounting Policies

Basis of Presentation

Sterling Construction Company, Inc. (“Sterling” or “the Company”), a Delaware corporation, is a leading heavy civil construction company that specializes in the building, reconstruction and repair of transportation and water infrastructure in markets in Texas, Utah, Nevada, Arizona, California and other states in which we see opportunities. Our transportation infrastructure projects include highways, roads, bridges and light and commuter rail foundations and structures, and our water infrastructure projects include water, wastewater and storm drainage systems. Sterling provides general contracting services, including excavating, concrete and asphalt paving, installation of large-diameter water and wastewater distribution systems, construction of bridges and similar large structures, construction of light and commuter rail infrastructure, concrete and asphalt batch plant operations, and concrete crushing and aggregate operations primarily to public sector clients. We purchase the necessary materials for our contracts, and perform the majority of the work required by our contracts with our own crews and equipment.

For a more detailed discussion of the Company’s business, readers of this Report are urged to review “Item 1. Business” of the Annual Report on Form 10-K for the year ended December 31, 2011 (“2011 Form 10-K”) and the sections of this Report entitled “Backlog at June 30, 2012” and “Our Markets” under Item 2.

The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities, and all significant intercompany accounts and transactions have been eliminated in consolidation. For all periods presented, the Company had no subsidiaries where its ownership interests were less than 50%.

Under accounting principles generally accepted in the United States (“GAAP”), the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity.  This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring us to consolidate the entity in which we have a non-majority variable interest.

On August 1, 2011, we acquired a 50% interest in a limited partnership which the Company determined to be a variable interest entity.  Prior to this, the Company had no participation in an entity determined to be a variable interest entity.  As discussed further in Note 3 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K, the Company determined that it exercises primary control over activities of Myers & Sons Construction, L.P. (“Myers”), and it is exposed to more than 50% of potential losses from the partnership.  Therefore, the Company consolidates Myers in the consolidated financial statements and includes the other partners’ interests in the equity and net income of the partnership in the balance sheet line item “Noncontrolling interests” in “Equity” and the statement of operations line item “Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures,” respectively.

Where the Company is a noncontrolling joint venture partner, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the consolidated statements of operations and as a single line item (“Receivables from and equity in construction joint ventures”) in the consolidated balance sheets.  See Note 6 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information regarding the Company’s construction joint ventures, including those where the Company does not have a controlling ownership interest.

The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and should be read in conjunction with the 2011 Form 10-K.  Certain information and note disclosures prepared in accordance with GAAP have been either condensed or omitted pursuant to SEC rules and regulations.  The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company’s financial position at June 30, 2012 and the results of operations and cash flows for the periods presented.  The December 31, 2011 condensed consolidated balance sheet data was derived from audited financial statements, but, as discussed above, does not include all disclosures required by GAAP.  Interim results may be subject to significant seasonal variations, and the results of operations for the three months and six months ended June 30, 2012 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.

8

Our Markets

Demand for transportation and water infrastructure depends on a variety of factors, including overall population growth, economic expansion and the vitality of the market areas in which we operate, as well as unique local topographical, structural and environmental issues.  In addition to these factors, demand for the replacement of infrastructure is driven by the general aging of infrastructure and the need for technical improvements to achieve more efficient or safer use of infrastructure and resources.  Funding for this infrastructure depends on federal, state and local governmental resources, budgets and authorizations.

Since the economic downturn in late 2008, the bidding environment in our markets has been much more competitive than in the past because of the following:

·   Reduced federal, state and local spending on transportation and water-related infrastructure.

·   Traditional competitors on larger transportation and water infrastructure projects appear to have been bidding at less than normal margins, sometimes at bid levels below our break-even pricing, in order to replenish their backlogs.

·   While our business includes only minimal residential and commercial infrastructure work, the severe fall-off in new projects in those markets has resulted in some residential and commercial infrastructure contractors bidding on smaller public sector transportation and water infrastructure projects, sometimes at bid levels below our break-even pricing, thus increasing competition and creating downward pressure on bid prices in our markets.

·   The entry of new competitors from other states.

These factors have limited our ability to replenish our backlog through successful bids for new projects and have compressed the profitability on the new projects where we submitted successful bids. While we have been more aggressive in reducing the anticipated margins we use to bid on some projects, we have not bid at anticipated loss margins in order to obtain new backlog.

Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.  Certain of the Company’s accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets, and income taxes.  Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual amounts could differ from those estimates.

Other  Accounting Policies

The Company’s significant accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K.  These accounting policies include, but are not limited to, those related to:

·contracts receivable, including retainage

·revenue recognition

·valuation of property and equipment, goodwill and other long-lived assets

·construction joint ventures

·income taxes

·segment reporting

There have been no material changes to significant accounting policies since December 31, 2011.

9

Construction Revenue Recognition

The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.

Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract.  Our contracts generally take 12 to 36 months to complete.

Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Changes in estimated revenues and gross margin on certain construction contracts during the six months ended June 30, 2012 resulted in a net charge of $4.7 million included in the operating results and a $4.0 million after-tax charge or $0.24 per diluted share attributable to Sterling common stockholders.

Financial Instruments

The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties.  The Company’s financial instruments are cash and cash equivalents, short-term investments, contracts receivable, derivatives, accounts payable, mortgage payable, a credit facility with Comerica Bank (“Credit Facility”), $500,000 of demand notes payable, the put related to certain noncontrolling owners’ interests in subsidiaries and an earn-out liability related to the acquisition of J. Banicki Construction, Inc. (“JBC”).  The recorded values of cash and cash equivalents, short-term investments, contracts receivable and accounts payable approximate their fair values based on their short-term nature.  The recorded value of the Credit Facility debt approximates its fair value, as interest approximates market rates.  See Note 5 regarding the fair value of derivatives and Note 8 regarding the fair value of the put and the earn-out liability.  We had one mortgage outstanding at June 30, 2012 and December 31, 2011 with a remaining balance of $299,000 and $336,000, respectively.  The mortgage was accruing interest at 3.50% at both June 30, 2012 and December 31, 2011 and contains pre-payment penalties.  At June 30, 2012 and December 31, 2011 the fair value of the mortgage approximated the book value. To determine the fair value of the mortgage, the amount of future cash flows was discounted using the Company’s borrowing rate on its Credit Facility.  The recorded value of the demand notes payable approximates the fair value as the interest rate approximates market rates and as the notes are due upon demand (i.e., they are short-term in nature).  See Note 10 for further information regarding the demand notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (see Note 13 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K).

Recent Accounting Pronouncements

In December 2011, the Financial Accounting Standards Board (“FASB”) amended authoritative guidance associated with offsetting assets and liabilities.  This amended guidance enhances disclosures by requiring improved information about financial instruments and derivatives instruments that are offset in accordance with current GAAP or subject to an enforceable master netting agreement.  The amendment to this authoritative guidance will be placed into effect for the Company on January 1, 2013 and must be applied retrospectively.  Except for the additional disclosure requirements, this amendment will have no impact on our consolidated financial statements upon adoption.

In May 2011, the FASB amended authoritative guidance associated with fair value measurements.  This amended guidance defines certain requirements for measuring fair value and for disclosing information about fair value measurement in accordance with GAAP.  The amendments to authoritative guidance associated with fair value measurements were effective for the Company on January 1, 2012 and have been applied prospectively.  The adoption of this guidance did not have a material impact on our consolidated financial statements.

10

Reclassifications

Balances related to accrued accounts payable which had been included in “Other current liabilities” in the prior year balance sheet have been reclassified to “Accounts payable” to conform to current year presentation.

2.   Cash and Cash Equivalents and Short-term Investments

The Company considers all highly liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents.  At June 30, 2012, $18.4 million of cash and cash equivalents were fully insured by the FDIC under its standard maximum deposit insurance amount guidelines.  At June 30, 2012, cash and cash equivalents included $3.7 million belonging to majority-owned joint ventures consolidated in these financial statements, which generally cannot be used for purposes outside the joint ventures.

Short-term investments include mutual funds and government bonds which are considered available-for-sale securities and measured at fair value as required under applicable GAAP.  Government bonds have maturity dates of 2013-2043.  At June 30, 2012 and December 31, 2011, the Company had short-term investments as follows (in thousands):

	June 30, 2012
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	29,012	$	29,012	$	--	$	258	$	12
Municipal bonds		20,664		--		20,664		765		46
Total securities available-for-sale	$	49,676	$	29,012	$	20,664	$	1,023	$	58

	December 31, 2011
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	24,851	$	24,851	$	--	$	383	$	--
Municipal bonds		20,004		--		20,004		617		15
Total securities available-for-sale	$	44,855	$	24,851	$	20,004	$	1,000	$	15

The amortized cost basis of the above securities at June 30, 2012 and December 31, 2011 was $48.7 million and $44.3 million, respectively.  Municipal bond securities are the only securities held by the Company where fair value does not equal amortized cost.  The amortized cost for municipal bond securities was $19.7 million and $19.4 million at June 30, 2012 and December 31, 2011, respectively.

The valuation inputs for Levels 1, 2 and 3 are as follows:

Level 1 Inputs – Valuation based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.

Level 2 Inputs – Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.

Level 3 Inputs – Based on unobservable inputs reflecting the Company’s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.

The Company had no short-term investments valued with Level 3 inputs at either of the balance sheet dates.

11

Gains and losses realized on short-term investment securities are included in “Gains (losses) on sale of securities and other” in the accompanying statements of operations.  Unrealized gains (losses) on short-term investments are included in accumulated other comprehensive income in stockholders’ equity, net of tax, as the gains and losses may be temporary.  For the six months ended June 30, 2012, total proceeds from sales of short-term investments were $14.7 million with gross realized gains of $501,000 and gross realized losses of $0.  The unrealized gains (losses) on short-term investments included in accumulated other comprehensive income, net of taxes of $338,000, was $627,000 at June 30, 2012.  Upon the sale of short-term investments, the cost basis used to determine the gain or loss is based on the specific identification of the security sold.  All items included in accumulated other comprehensive income are at the corporate level, and no portion is attributable to noncontrolling interests.

For the three and six months ended June 30, 2012 and 2011, the Company earned interest income of $352,000 and $703,000, and $378,000 and $943,000, respectively, on its cash, cash equivalents and short-term investments.

3.   Construction Joint Ventures

We participate in various construction joint ventures.  Generally, each construction joint venture is formed to accomplish a specific project and is jointly controlled by the joint venture partners.  See Note 6 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K for further information.  Condensed combined financial amounts of joint ventures in which the Company has a noncontrolling interest and the Company’s share of such amounts which are included in the Company’s condensed consolidated financial statements are shown below (in thousands):

	June 30, 2012			December 31, 2011
Total combined:
Current assets	$	6,364		$	108,458
Less current liabilities		(3,517	)		(86,023	)
Net assets	$	2,847		$	22,435
Backlog	$	435,385		$	539,844
Sterling’s noncontrolling interest in backlog	$	121,877		$	127,130
Sterling’s receivables from and equity in construction joint ventures	$	6,889		$	6,057

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Total combined:
Revenues	$	215,210	$	113,550	$	305,584	$	200,236
Income before tax		20,299		9,478		28,861		16,405
Sterling’s proportionate share:
Revenues	$	37,885	$	14,189	$	53,801	$	25,030
Income before tax		3,337		1,184		4,750		2,012

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4.   Property and Equipment

Property and equipment are summarized as follows (in thousands):

	June 30, 2012			December 31, 2011
Construction equipment	$	135,511		$	125,222
Transportation equipment		16,428			17,963
Buildings		7,186			4, 729
Office equipment		1,292			1,077
Construction in progress		1,051			2,544
Land		4,886			3,026
Water rights		200			200
		166,554			154,761
Less accumulated depreciation		(64,151	)		(71,332	)
	$	102,403		$	83,429

Construction in progress at June 30, 2012 consisted primarily of expenditures for a new office in San Antonio, Texas.  In addition to the expenditures for the new office in San Antonio, construction in progress at December 31, 2011 consisted primarily of expenditures for a new office in Dallas, Texas, which was completed during the three months ended March 31, 2012.

5.   Derivative Financial Instruments

During the quarter ended June 30, 2011, the Company began entering into various fixed rate commodity swap contracts in an effort to manage its exposure to price volatility of diesel fuel.  Historically, fuel prices have been volatile because of supply and demand factors, worldwide political factors and general economic conditions.  The objective of the Company in executing the hedge is to mitigate the fuel price volatility that could adversely affect forecasted cash flows and earnings related to construction contracts.  Swaps are designed so that the Company receives or makes payments based on a differential between fixed and variable prices for off-road ultra-low sulfur diesel (“ULSD”).  The Company has designated its commodity derivative contracts as cash flow hedges designed to achieve more predictable cash flows, as well as to reduce its exposure to price volatility.  While the use of derivative instruments limits the downside risk of adverse price movements, they also limit future benefits from reductions in costs as a result of favorable market price movements.

All of the Company’s outstanding derivative financial instruments are recognized in the balance sheet at their fair values.  All changes in the fair value of outstanding derivatives, except any ineffective portion, are recorded in accumulated other comprehensive income until earnings are impacted by the hedged transaction.  Amounts in accumulated other comprehensive income are reclassified to earnings when the related hedged items affect earnings or the anticipated transactions are no longer probable.  All items included in accumulated other comprehensive income are at the corporate level, and no portion is attributable to noncontrolling interests.

At June 30, 2012, pre-tax accumulated other comprehensive income, net of related taxes of $69,000, consisted of unrecognized losses of $198,000 representing the unrealized change in mark-to-market value of the effective portion of the Company’s commodity contracts, designated as cash flow hedges, as of the balance sheet date.  For the three and six months ended June 30, 2012, the Company recognized pre-tax net realized cash settlement losses on commodity contracts of $41,000 and $44,000, respectively.

At June 30, 2012, the Company had hedged its exposure to the variability in future cash flows from forecasted diesel fuel purchases totaling 620,000 gallons.  The monthly volumes hedged range from 10,000 gallons to 30,000 gallons over the period from July 2012 to December 2014 at fixed prices per gallon ranging from $2.80 to $3.33.

The derivative instruments are recorded on the condensed consolidated balance sheet at fair value and include $30,200 in Other current liabilities for the June 2012 contract which settled in July 2012.  The fair values, excluding the $30,200 settled in 2012, are as follows (in thousands):

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Balance Sheet Location	June 30, 2012		December 31, 2011
Derivative assets:
Deposits and other current assets	$	--	$	--
Other assets, net		--		--
	$	--	$	--
Derivative liabilities:
Other current liabilities	$	156	$	147
Other long-term liabilities		42		76
	$	198	$	223

The following table summarizes the effects of commodity derivative instruments on the consolidated statements of operations and comprehensive income for the six months ended June 30, 2012 and 2011 (in thousands):

	June 30,				June 30,
	2012				2011
Increase in fair value of derivatives included in other comprehensive income (effective portion)		$	25			$	--
Realized loss included in cost of revenues (effective portion)			(44	)			--
Increase (decrease) in fair value of derivatives included in cost of revenues (ineffective portion)			--				--

The Company’s derivative instruments contain certain credit-risk-related contingent features which apply both to the Company and to the counterparties.  The counterparty to the Company’s derivative contracts is a high credit quality financial institution.

Fair Value

Derivative financial instruments are carried at fair value as required by applicable GAAP.  Commodity derivative instruments consist of fixed rate commodity swaps to hedge the price risk associated with changes in the price of diesel fuel.  The Company’s swaps are valued based on a discounted future cash flow model.  The primary input for the model is the forecasted prices for ULSD.  The Company’s model is validated by the counterparty’s mark-to-market statements.  The swaps are designated as Level 2 within the valuation hierarchy.  Refer to Note 2 for a description of the inputs used to value the information shown above.

At June 30, 2012 and December 31, 2011, the Company did not have any derivative assets or liabilities measured at fair value on a recurring basis that meet the definition of Level 1 or Level 3.

6.   Income Taxes

The Company and its subsidiaries file U.S. federal and various state income tax returns. The Company’s 2007 through 2009 U.S. federal income tax returns are currently being examined by the I.R.S.; however, management expects there will be no material adjustments, interest or penalties from such examination.  The Company’s policy is to recognize interest related to any underpayment of taxes as interest expense, and any penalties as administrative expenses.

The income tax expense (benefit) in the accompanying condensed consolidated financial statements consists of the following (in thousands):

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	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Current tax expense (benefit)	$	1,169		$	748	$	144		$	(354	)
Deferred tax expense (benefit)		(185	)		397		(3,136	)		1,665
Total tax expense (benefit)	$	984		$	1,145	$	(2,992	)	$	1,311

Current income tax expense (benefit) represents federal and state taxes based on income (loss) or a component thereof expected to be included in the tax returns for the years shown.  The deferred tax benefit in the six months ended June 30, 2012 reflects, among other temporary timing differences, the tax impact of $2,351,000 related to the $6,717,000 increase in the net income attributable to RLW’s noncontrolling interests for the amendment discussed in Note 8.  The deferred income tax expense (benefit), based on temporary timing differences, is expected to be payable in future years.

The income tax expense (benefit) for the six months ended June 30, 2012 and 2011 differ from the amounts using the statutory federal income tax rate of 35% of income before taxes and earnings attributable to noncontrolling interests for the following reasons (in thousands, except for percentages):

	2012						2011
	Amount			%			Amount			%
Tax expense at the federal statutory rate	$	1,698			35.0	%	$	3,180			35.0	%
State income tax expense (benefit), net of federal benefit		9			0.2			(444	)		(4.9	)
Taxes on subsidiaries' and joint ventures’ earnings attributable to noncontrolling ownership interests, which are liabilities of such owners		(4,213	)		(86.8	)		(1,232	)		(13.6	)
Interest income not subject to federal tax		(235	)		(4.8	)		(210	)		(2.3	)
Other permanent differences		(251	)		(5.3	)		17			0.2
Income tax expense	$	(2,992	)		(61.7	)%	$	1,311			14.4	%

As a result of the Company’s analysis, management has determined that the Company does not have any material uncertain tax positions.

7.   Contingencies Related to Litigation

In January 2010, a jury trial was held to resolve a dispute between Road and Highway Builders, LLC (“RHB”) and a subcontractor.  The jury rendered a verdict of $1.0 million against RHB, exclusive of interest, court costs and attorney’s fees. While the Company has recorded this verdict as an expense in 2009, the Company has appealed this judgment as it believes that as a matter of law, the jury erred in its decision.  The Company has posted a bond of $1.3 million to cover the judgment and estimated court costs and attorney’s fees pending the results of the appeal.  The appeal was heard by the Nevada Supreme Court on November 3, 2011, and the Company is awaiting the court’s decision.

The Company is the subject of certain other claims and lawsuits occurring in the normal course of business. Management, after consultation with legal counsel, does not believe that the outcome of these other actions will have a material impact on the financial statements of the Company.

8.   Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests

In January 2012, RHB, a wholly owned subsidiary, assumed six construction contracts with $25.0 million of unearned revenues from Aggregate Industries―SWR, Inc. (“AI”), an unrelated third party.  In addition, Aggregate South West Holdings, LLC (“ASWH”) and RHB Properties, LLC (“RHBP”), newly formed entities owned by Richard Buenting, the President and Chief Executive Officer of RHB, acquired construction related machinery and equipment and land with quarries from AI.  In addition, AI entered into a two-year non-compete agreement with respect to Utah, Idaho and Montana as well as certain areas of Nevada.  On April 27, 2012, RHB merged with ASWH and acquired RHBP.  In exchange, RHB granted Mr. Buenting a 50% member interest in RHB.  These transactions allowed RHB to expand its operations in Nevada.

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The Company also agreed with Mr. Buenting to amend and restate the operating agreement for RHB.  The amended agreement provides that the Company is the Manager of RHB and retains full, exclusive and complete power, authority and discretion to manage, supervise, operate and control RHB; therefore, the Company consolidates RHB with its other subsidiaries.  The Company also entered into a buy/sell and management agreement with Mr. Buenting.  Under this agreement, the Company or Mr. Buenting may annually elect to make an offer to buy the other owner’s 50% interest in RHB or sell their 50% interest in RHB at a price which they specify.  Upon receipt of an offer to buy their interest, the other owner may either accept the offer or elect to buy the other owner’s 50% interest.  Similarly in the instance of an offer to sell, the other owner may either agree to buy the other owner’s 50% interest or require the other owner to buy their 50% interest.  The agreement also provides that the Company will provide RHB with a $5 million line of credit.

The Company has not yet finalized its valuation of the assets acquired, the membership interest granted and the tax related impact of the transaction.  Therefore the purchase price for the transaction is preliminary.  The transaction has been recorded based on a preliminary valuation of the assets acquired of $15.2 million, including $1.2 million associated with machinery and equipment that is held for sale.

Revenues and earnings related to the contracts assumed and the acquired companies from January through June 30, 2012 were $10.3 million and $0.3 million, respectively.  In connection with this transaction, AI did not agree to provide us with historical information related to the earnings from the acquired operations except for information related to the specific contracts being assumed.  Furthermore, we determined that such information was not needed in order to evaluate the transaction based on our knowledge of the assets acquired and the Nevada road and highway construction market.  Therefore, we are not able to present pro forma financial information as if the transactions had occurred on January 1, 2011.

In connection with the August 1, 2011, acquisition of J. Banicki Construction, Inc. (“JBC”) by 80% owned Ralph L. Wadsworth Construction Company, LLC (“RLW”), RLW agreed to additional purchase price payments of up to $5 million to be paid over a five-year period.  The additional purchase price is in the form of an earn-out which is classified as a Level 3 fair value measurement.  In making this valuation,  the unobservable input consisted of forecasted earnings before interest, taxes and depreciation and amortization (“EBITDA”) for the periods after the period being reported on through July 31, 2016.  The additional purchase price is calculated generally as 50% of the amount by which earnings before interest, taxes, depreciation and amortization (“EBITDA”) exceeds $2 million for each of the calendar years 2011 through 2015 and $1.2 million for the seven months ended July 31, 2016.  The yearly excess forecasted EBITDA in our calculation ranged from 39% to 77% of the minimum EBITDA threshold for the years 2012 through 2016.  The discounted present value of the additional purchase price was estimated to be $2.4 million as of August 1, 2011, the acquisition date and $2.2 million as of June 30, 2012.  The undiscounted earn-out liability as of June 30, 2012 is estimated at $2.4 million and could increase by $2.6 if EBITDA during the earn-out period increases $5.2 million or more and could decrease by the full amount of the liability if EBITDA does not exceed the minimum threshold in any of the periods during the earn-out period.  Any significant increase or decrease in actual EBITDA compared to the forecasted amounts would result in a significantly higher or lower fair value measurement of the additional purchase price.  This liability is included in other long-term liabilities in the accompanying condensed consolidated balance sheets.

On August 1, 2011, the Company purchased a 50% interest in Myers & Sons Construction, L.P. (“Myers”).  Myers is a construction limited partnership located in California and was acquired in order to expand the geographic scope of the Company’s operations into California.

See Note 10 regarding the determination that Myers is a variable interest entity and the resulting impact on the consolidated financial statements.

The following table shows the amounts of JBC’s and Myers’ revenue and earnings included in the Company’s condensed consolidated statements of operations and cash flows for the six months ended June 30, 2012 as well as the revenue and earnings of the combined entity for the six months ended June 30, 2011 had the acquisition dates been January 1, 2011 (in thousands):

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	Revenue		Net Income Attributable to Sterling Common Stockholders
JBC actual from January 1, 2012 to June 30, 2012	$	20,176	$	888
Myers actual from January 1, 2012 to June 30, 2012		23,570		192
Supplemental pro forma results of the Company, JBC, and Myers on a combined basis for 1/1/2011 – 6/30/2011 (unaudited)		237,304		4,184

In connection with the December 3, 2009 acquisition of RLW, the noncontrolling interest owners of RLW, who are related and also its executive management, have the right to require the Company to buy their remaining 20.0% interest in RLW in 2013, and concurrently, the Company has the right to require those owners to sell their 20.0% interest to the Company by July 2013 (the “RLW Put/Call”). The purchase price in each case is 20% of the product of the simple average of RLW’s EBITDA (income before interest, taxes, depreciation and amortization) for the calendar years 2010, 2011 and 2012 times a multiple of a minimum of 4 and a maximum of 4.5.  The valuation of this purchase price is classified as a Level 3 fair value measurement.  In making this valuation, the observable input is RLW’s EBITDA for the period from January 1, 2010 through June 30, 2012 while the unobservable input is the forecasted EBITDA for the period from July 1, 2012 through December 31, 2012.  The noncontrolling owners’ interests, including the obligation under the RLW Put/Call, were recorded at their estimated fair value at the date of acquisition as “Obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the accompanying consolidated balance sheet. Any significant increase or decrease in actual EBITDA compared to the forecasted amount would result in a significantly higher or lower fair value measurement of the purchase price.  A $1 million increase (decrease) in RLW’s EBITDA for the six months ended December 31, 2012 from that used in the forecast would result in a $0.3 million increase (decrease) in the RLW Put/Call liability.

Annual interest is accreted for the RLW Put/Call obligation based on the Company’s borrowing rate under its Credit Facility plus two percent. Such accretion amounted to $497,000 and $424,000 for the six months ended June 30, 2012 and 2011 and is recorded in “Interest expense” in the accompanying condensed consolidated statement of operations.  In addition, based on the estimated average of RLW’s EBITDA for the calendar years 2010, 2011 and 2012 and the expected multiple, the estimated fair value of the RLW Put/Call was increased by $1,195,000 during the three months ended June 30, 2012, and this change, net of tax of $378,000, has been reported as a charge to retained earnings.

Since the Company may be required to settle the obligation associated with the RLW Put/Call as well as any undistributed earnings to the noncontrolling interest owners within the next year, $21,800,000 is included in current liabilities under “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the accompanying condensed consolidated balance sheets.

On October 31, 2007, the Company purchased a 91.67% interest in RHB.  The noncontrolling interest owner of RHB had the right to put, or require the Company to buy, his remaining 8.33% interest in the subsidiary and, concurrently, the Company had the right to require that the owner sell his 8.33% interest to the Company, in 2011.  On March 17, 2011, the right to put/call the RHB noncontrolling interest was extended to anytime between that date and December 31, 2012.  In addition the price was increased from $7.1 million to $8.2 million which settled $1.1 million of accrued amounts due to the noncontrolling interest owner under the October 31, 2007 purchase agreement.  In September 2011, the noncontrolling owner exercised his right to put his remaining interest of 8.33% in RHB to the Company for $8.2 million.  This transaction was completed in December 2011 under the terms of the agreement.

See Note 2 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information regarding the acquisitions discussed above.

Changes in Obligation for Noncontrolling Interests

The following table summarizes the changes in the obligation for noncontrolling owners' interests in subsidiaries and joint ventures (in thousands):

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	Six Months Ended June 30,
	2012			2011
Balance, beginning of period	$	16,848		$	28,724
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures		11,780			3,519
Accretion of interest on RLW Put/Call		497			424
Change in fair value of RLW Put/Call		733			--
Change in fair value of RHB put/call		--			1,054
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies		15,196			--
Distributions to noncontrolling interest owners		(4,885	)		(4,818	)
Balance, end of period	$	40,169		$	28,903

“Noncontrolling owners’ interest in earnings of subsidiaries and joint ventures” for the six months ended June 30, 2012 shown in the accompanying condensed consolidated statement of operations of $12,076,000 includes $10,576,000 attributable to the RLW noncontrolling interest owners which is reflected in “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures,” $1,204,000 is attributable to RHB noncontrolling interest owners which is reflected in “Obligation for noncontrolling owners’ interest in subsidiaries and joint ventures” and income of $296,000 attributable to other noncontrolling interest owners which is reflected in equity in “Noncontrolling interests” in the accompanying condensed consolidated balance sheet.

Subsequent to the issuance of the financial statements for December 31, 2011, the members of RLW, including the Company, agreed to amend RLW’s operating agreement effective January 1, 2012 to provide that any goodwill impairment, including the 2011 fourth quarter goodwill impairment of the Company described in Note 8 of the Notes to Consolidated Financial Statements included in the 2011 From 10-K, is not to be allocated to RLW for the purpose of calculating the distributions to be made to the RLW noncontrolling interest holders. This amendment resulted in an increase in the net income attributable to RLW’s noncontrolling interests of $6,717,000 during the six months ended June 30, 2012.  This increase is included in “Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures” in the accompanying condensed consolidated statement of operations with an increase in the “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the condensed consolidated balance sheet.  This increase has a related tax impact of $2,351,000 which increased the tax benefit for the period.

9.   Stockholders’ Equity

Stock-Based Compensation Plan and Warrants

The Company has a stock-based incentive plan which is administered by the Compensation Committee of the Board of Directors.  See Note 14 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information.  We recorded stock-based compensation expense of $133,000 and $133,000 for the three months ended June 30, 2012 and 2011, respectively, and $263,000 and $258,000 for the six months ended June, 30, 2012 and 2011, respectively.

At June 30, 2012, total unrecognized compensation expense related to restricted stock awards was $781,000.  This cost is expected to be recognized over a weighted average period of 2.3 years.  There was no unrecognized compensation expense related to stock options at June 30, 2012.  Proceeds received by the Company from the exercise of options and warrants for the six months ended June 30, 2012 and 2011 were approximately $56,000 and $122,000, respectively.  No options were granted in the six months ended June 30, 2012 or 2011.

At June 30, 2012, there were 121,184 and 31,000 shares of common stock covered by outstanding restricted stock and stock options, respectively.  All of the stock options were vested while the restricted stock has not vested.

10.   Variable Interest Entities

We own a 50% interest in Myers of which we are the primary beneficiary and have consolidated Myers into our financial statements.  Because the Company exercises primary control over activities of the partnership and it is exposed to the majority of potential losses of the partnership, the Company has consolidated Myers within the Company’s financial statements from August 1, 2011, the date of acquisition.  See Note 2 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for additional information on the acquisition of this limited partnership.

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The condensed financial information of Myers which is reflected in our condensed consolidated balance sheets and statements of operations is as follows (in thousands):

	June 30, 2012		December 31, 2011
Assets:
Current assets:
Cash and cash equivalents	$	3,155	$	1,365
Contracts receivable, including retainage		12,133		2,244
Other current assets		135		419
Total current assets		15,423		4,028
Property and equipment, net		2,713		926
Goodwill		1,501		1,541
Total assets	$	19,637	$	6,495
Liabilities:
Current liabilities:
Accounts payable	$	12,010	$	1,134
Other current liabilities		4,061		2,323
Total current liabilities		16,071		3,457
Long-term liabilities:
Other long-term liabilities		--		--
Total long-term liabilities		--		--
Total liabilities	$	16,071	$	3,457

	Three Months Ended June 30, 2012		Six Months Ended June 30, 2012
Revenues	$	19,056	$	23,570
Operating income		633		602
Net income attributable to Sterling common stockholders		204		192

Other current liabilities shown in the table above include $500,000 in demand notes payable that are due to one of the noncontrolling interest owners.

11.   Net Income (Loss) per Share Attributable to Sterling Common Stockholders

Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period.  Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive stock options and warrants using the treasury stock method.  The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income attributable to Sterling common stockholders (in thousands, except per share data):

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	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Numerator:
Net income (loss) attributable to Sterling common stockholders	$	3,287		$	4,211	$	(4,215	)	$	4,255
Revaluation of the RLW noncontrolling interest put/call liability reflected in retained earnings, net of tax		(777	)		--		(476	)		--
	$	2,510		$	4,211	$	(4,691	)	$	4,255
Denominator:
Weighted average common shares outstanding — basic		16,360			16,484		16,341			16,474
Shares for dilutive stock options and warrants		84			111		--			130
Weighted average common shares outstanding and assumed conversions— diluted		16,444			16,595		16,341			16,604
Basic net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.26	$	(0.29	)	$	0.26
Diluted net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.25	$	(0.29	)	$	0.26

There were 2,800 and 95,107 weighted average options outstanding during the three and six months ended June 30, 2012 and 2011 which were considered antidilutive as the option exercise price exceeded the average share market price and were therefore excluded from the denominator used for computing diluted net income (loss) per share attributable to Sterling common stockholders.  In addition, and in accordance with the treasury stock method, 86,544 shares of stock options and restricted stock were excluded from the diluted weighted average common shares outstanding for the six months ended June 30, 2012 as the Company incurred a loss during this period and the impact of such shares would have been antidilutive.

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Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

Cautionary Comment Regarding Forward-Looking Statements

This Report includes statements that are, or may be considered to be, “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act.  These forward-looking statements are included throughout this Report, including in this section, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” and relate to matters such as our industry, business strategy, goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity and capital resources and other financial and operating information.  We have used the words “anticipate,” “assume,” “believe,” “budget,” “continue,” “could,” “estimate,” “expect,” “forecast,” “future,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar terms and phrases to identify forward-looking statements in this Report.

Forward-looking statements reflect our current expectations as of the date of this Report regarding future events, results or outcomes.  These expectations may or may not be realized.  Some of these expectations may be based upon assumptions or judgments that prove to be incorrect.  In addition, our business and operations involve numerous risks and uncertainties, many of which are beyond our control, that could result in our expectations not being realized or otherwise could materially affect our financial condition, results of operations and cash flows.

Actual events, results and outcomes may differ materially from our expectations due to a variety of factors.  Although it is not possible to identify all of these factors, they include, among others, the following:

·   changes in general economic conditions, including recessions, reductions in federal, state and local government funding for infrastructure services and changes in those governments’ budgets, practices, laws and regulations;

·   delays or difficulties related to the completion of our projects, including additional costs, reductions in revenues or the payment of liquidated damages, or delays or difficulties related to obtaining required governmental permits and approvals;

·   actions of suppliers, subcontractors, design engineers, joint venture partners, customers, competitors, banks, surety companies and others which are beyond our control, including suppliers’, subcontractors’, and joint venture partners’ failure to perform;

·   the effects of estimates inherent in our percentage-of-completion accounting policies, including onsite conditions that differ materially from those assumed in our original bid, contract modifications, mechanical problems with our machinery or equipment and effects of other risks discussed in this document;

·   design/build contracts which subject us to the risk of design errors and omissions;

·   cost escalations associated with our contracts, including changes in availability, proximity and cost of materials such as steel, cement, concrete, aggregates, oil, fuel and other construction materials, and cost escalations associated with subcontractors and labor;

·   our dependence on a limited number of significant customers;

·   adverse weather conditions; although we prepare our budgets and bid contracts based on historical rain and snowfall patterns, the incidence of rain, snow, hurricanes, etc., may differ materially from these expectations;

·   the presence of competitors with greater financial resources or lower margin requirements than ours, and the impact of competitive bidders on our ability to obtain new backlog at reasonable margins acceptable to us;

·   our ability to successfully identify, finance, complete and integrate acquisitions;

·   citations issued by any governmental authority, including the Occupational Safety and Health Administration;

·   federal, state and local environmental laws and regulations where non-compliance can result in penalties and/or termination of contracts as well as civil and criminal liability;

·   the instability of certain financial institutions, which could cause losses on our cash and cash equivalents and short-term investments; 

·   adverse economic conditions in our markets; and

·   the other factors discussed in more detail in our Annual Report on Form 10-K for the year ended December 31, 2011 (“2011 Form 10-K”) under “Item 1A. —Risk Factors.”

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In reading this Report, you should consider these factors carefully in evaluating any forward-looking statements and you are cautioned not to place undue reliance on any forward-looking statements.  Although we believe that our plans, intentions and expectations reflected in, or suggested by, the forward-looking statements that we make in this Report are reasonable, we can provide no assurance that they will be achieved.

The forward-looking statements included in this Report are made only as of the date of this Report, and we undertake no obligation to update any information contained in this Report or to publicly release the results of any revisions to any forward-looking statements to reflect events or circumstances that occur, or that we become aware of after the date of this Report, except as may be required by applicable securities laws.

Overview

Sterling is a leading heavy civil construction company that specializes in the building, reconstruction and repair of transportation and water infrastructure.  Transportation infrastructure projects include highways, roads, bridges, light rail and commuter rail.  Water infrastructure projects include water, wastewater and storm drainage systems. Sterling provides general contracting services, including excavating, concrete and asphalt paving, installation of large-diameter water and wastewater distribution systems, construction of bridges and similar large structures, construction of light and commuter rail infrastructure, concrete and asphalt batch plant operations, concrete crushing and aggregates operations.  Sterling performs the majority of the work required by its contracts with its own crews and equipment.

Sterling has grown its operations by expanding both its service profile and  market areas. This involved adding services, such as concrete operations, in order to capture a greater percentage of available work in current and potential markets.  It also involved strategically expanding operations, either by establishing a branch office in a new market, often after having successfully bid on and completed a project in that market, or by acquiring a company that gives us an immediate entry into a market.  Sterling extended both its service profile and its geographic market reach with the 2009 acquisition of Ralph L. Wadsworth Construction Company, LLC (“RLW”), which has operations primarily in Utah, and the 2011 acquisitions of J. Banicki Construction, Inc. (“JBC”) and Myers & Sons Construction, L.P. (“Myers”) with operations in Arizona and California, respectively.

Sterling operates primarily in Texas, Utah, Nevada, Arizona and California, states that management believes benefit from both positive long-term demographic trends as well as a historical commitment to funding transportation and water infrastructure projects.   Currently, the Company also has highway construction contracts in Hawaii, Montana and Louisiana.  From 2005 to 2010, the populations of Texas, Utah, Nevada, Arizona and California grew 10.2%, 15.8%, 14.8%, 9.1% and 3.5%, respectively, compared to approximately 4.5% for the national average.  While the near-term funding available to these markets is currently limited, management anticipates that long-term population growth and increases in required spending for infrastructure in these markets will positively affect business opportunities over the coming years.

For a more detailed discussion of the Company’s business, readers of this report are advised to review “Item 1, Business,” of the 2011 Form 10-K.

For purposes of the discussions which follow, “Current Quarter” refers to the three month period ended June 30, 2012, “Prior Quarter” refers to the three month period ended June 30, 2011, “Current Period” refers to the six month period ended June 30, 2012 and “Prior Period” refers to the six month period ended June 30, 2011.

Financial Results for the Current Period, Operational Issues and Outlook for 2012 Financial Results

As discussed further in the 2011 Form 10-K, the Company’s 2011 results were well below those of 2010 as a result of a pre-tax charge of $67.0 million related to the impairment of goodwill and a decline in our overall margins which were adversely affected by production issues on a number of construction projects, primarily in the fourth quarter of 2011.  These declines were in part a result of revisions to estimated profitability on construction projects, both favorable and unfavorable, which resulted in a net pre-tax charge of $11.8 million in 2011.

In the Current Quarter and Current Period, the Company had operating income of $8.2 million and $3.7 million, respectively, and net income (loss) attributable to Sterling common stockholders of $3.3 million and $(4.2) million, respectively. Included in the net loss attributable to Sterling common stockholders for the Current Period is additional earnings allocated to noncontrolling interest owners of $6.7 million, or $4.4 million net of tax, resulting from an amendment to the RLW member agreement to change the treatment of goodwill impairments for purposes of determining net income distributable to RLW’s members.  This is discussed further in Note 8.

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Our overall margins have improved from 3.4% for the three months ended December 31, 2011 and 1.9% for the three months ended March 31, 2012 to 9.0% for the Current Quarter.  While we continued to be adversely affected by production issues on certain construction projects, the impact of downward revisions to estimated profitability for the Current Quarter was offset by improvements on other projects.

The majority of our revenues and backlog is derived from fixed unit price contracts. Some of our revenues are derived from lump sum contracts. Fixed unit price contracts require us to provide materials and services at a fixed unit price based on approved quantities irrespective of our actual per unit costs. Lump sum contracts require that the total amount of work be performed for a single price irrespective of our actual costs. As discussed in “Item 1A. Risk Factors” in the 2011 Form 10-K, we realize a profit on our contracts only if we accurately estimate our costs and then successfully control actual costs and avoid cost overruns, and our revenues exceed actual costs. If our cost estimates for a contract are inaccurate, or if we do not execute the contract within our cost estimates, then cost overruns may cause the contract not to be as profitable as we expected or result in a loss, negatively affecting our cash flow, earnings and financial position.

In view of the significant revisions to estimated gross profits on contracts identified in the fourth quarter of 2011, management undertook a thorough review and determined that some of these revisions related to prior periods, but the impact of revising these estimates would not have had a material impact on revenues or gross profit reported in those prior periods had the changes been made in the appropriate period.  Management also determined that the procedures performed by operating personnel to make periodic revisions in estimates, and the reviews of those estimates by operations management, were not adequate or timely enough in some instances to ensure that a material impact on the financial statements resulting from such revisions in estimates would be recognized in the proper period.  Management determined that this deficiency in our internal controls was such that a material misstatement of our annual or interim financial statements would not have been prevented or detected on a timely basis and, therefore, this deficiency constituted a material weakness as of December 31, 2011.  Based on certain of the revisions in estimates which were made in the Current Quarter, management has determined that this material weakness continued to exist as of June 30, 2012.

While the risks of cost overruns and changes in estimated contract revenues are an inherent part of the construction business, management believes that there are internal changes that we can make in order to improve the profitability of our projects, reduce the variability in profitability of our projects in the future and strengthen the internal control environment.  We are undertaking changes in the following areas:

·   changing roles and responsibilities to improve functional support and controls;

·   developing management tools designed to improve the estimating process and increase the oversight of that process;

·   implementing processes designed to better identify, evaluate and quantify risks for individual projects;

·   improving the methodologies for allocating overhead, indirect costs and equipment costs to individual projects; and

·   improving the timeliness and content of reporting available to operations management.

Although improvements have been made to the estimation process, there has not yet been an adequate period of time since the changes have been implemented to evaluate the effectiveness of these changes, and we have determined that the material weakness continues to exist as of June 30, 2012.

In addition to the factors discussed above which impact the profitability on individual projects, there are other factors which have adversely affected our ability to secure construction projects at favorable margins. Contracts for our highway and related bridge work are generally funded through federal and state authorizations.  The federal government enacted the SAFETEA-LU bill in 2005, which authorized $244 billion for transportation spending through 2009.  The SAFETEA-LU bill expired on September 30, 2009, and the federal government  enacted a number of extensions on an interim basis, most recently through June 30, 2012.  In July 2012, the federal government enacted the Moving Ahead for Progress in the 21st Century (“MAP-21”) legislation, a two-year, $105 billion reauthorization of the federal surface transportation program.  This legislation maintains annual federal highway funding close to the previous level of $41 billion under the SAFETEA-LU bill.  While we believe that a longer term bill is needed, the new bill does alleviate some of the uncertainty which has adversely affected the levels of transportation and water infrastructure capital expenditures in our markets, reduced opportunities to replace backlog at reasonable margins and increased competition for new projects.

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While we expect that implementation of the internal changes discussed above will improve profitability in the future, we do not expect to see a substantial impact on our 2012 results.  In addition, we expect continued pressure on our gross margins on new contract awards.  Projects in our backlog generally take 12 to 36 months to complete, and we currently estimate that about half of our $782 million in backlog at June 30, 2012 will be constructed in the remainder of 2012.  Based on our current estimates, the gross margin in our backlog for 2012 is lower than the gross margin of 8.0% realized in 2011, partly as a result of the operational issues discussed above which resulted in the downward revisions of estimated gross profits on a number of construction projects and partly as a result of competitive bidding pressures when the contracts were added to backlog.

Revenues for the Current Period are 17% above the Prior Period, and we expect that revenues will increase more than 25% from 2011 to 2012 as a result of the higher backlog at the end of 2011 as compared to 2010, the impact of a full year of operations for JBC and Myers, both of which were acquired in August 2011, and contract awards of $263 million from January 1, 2012 through June 30, 2012.  However, as discussed above, based on estimated gross margins in our current backlog, we expect our overall gross margins for 2012 to be lower than the 8.0% reported for 2011.

Our Markets

Demand for transportation and water infrastructure depends on a variety of factors, including overall population growth, economic expansion and the vitality of the market areas in which we operate, as well as unique local topographical, structural and environmental issues. In addition to these factors, demand for the replacement of infrastructure is driven by the general aging of infrastructure and the need for technical improvements to achieve more efficient or safer use of infrastructure and resources. Funding for this infrastructure depends on federal, state and local governmental resources, budgets and authorizations.  Each of these factors is discussed more fully in “Item 1.  Business−Our Markets” in the 2011 Form 10-K.

According to 2010 U.S. Census Bureau information, Texas, Utah, Nevada, Arizona and California each experienced significant population growth from 2005 to 2010 and over the long-term these states are expected to continue to experience population increases from 25.1 million, 2.8 million, 2.7 million, 6.4 million and 37 million people in 2010, respectively, to populations of over 33 million, 3 million, 4 million, 10 million and 46 million, respectively, by 2030.

The U.S. Department of Transportation (“U.S.DOT”) had actual appropriations of $41.8 billion for federal highway financial assistance to the states for 2011, has authority to spend $41.5 billion in the fiscal year ending September 30, 2012, $39.7 billion in fiscal 2013 and $40.3 billion in fiscal 2014 for highways and bridges..

In January 2009, the 2030 Committee, appointed by the Texas Department of Transportation (“TxDOT”) at the request of the Governor of the State of Texas, submitted its draft report of the transportation needs of Texas, which at that time had over 193,000 lane-miles and 50,000 bridges in its state highway system.  The report stated that “With [the] population increase expected by 2030, transportation modes, costs and congestion are considered a possible roadblock to Texas’s projected growth and prosperity.”  The report further indicated that Texas needs to spend approximately $315.0 billion (in 2008 dollars) for the period 2009 through 2030 to prevent worsening congestion and maintain economic competitiveness on its urban highways and roads, improve congestion/safety and partial connectivity on its rural highways, and to replace bridges.

In 2007, the voters of the State of Texas approved $5.0 billion of bonds for highway construction (“Prop 12 Bonds”) to be repaid out of the State’s general funds. The transportation construction expenditures for 2010 and 2011 were partially funded by $2.0 billion of proceeds from the Prop 12 Bonds, and the budget for the biennium 2012-2013 includes the remaining $3.0 billion of proceeds from the Prop 12 Bonds.

TxDOT contract awards (“lettings”) for transportation construction projects are estimated to be $4.2 billion in 2012 and $4.1 billion in 2013, including a statewide and local portion of the Prop 12 Bonds discussed above.

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In Texas, substantial funds for transportation infrastructure spending are also being provided by toll road and regional mobility authorities for construction of toll roads, which provides Sterling with additional construction contracting opportunities; however, such spending could be limited by federal, state and local funding limitations.

Spending for highway and bridge construction in Utah was $1.3 billion in 2011, and $700.9 million has been authorized for 2012. The details of the capital spending for 2013 have not been released; however the Utah Governor’s recommendation for total capital spending in 2013 is approximately $911 million compared with $1.4 billion recommended for 2012.

Nevada’s budget for construction of roadways and facilities is $377 million in 2012 and $369 million in 2013 compared with expenditures of between $300 million and $400 million in each of the 2010 and 2011 fiscal years.

Arizona’s expenditures for transportation construction were $326 million in 2011, appropriations are $326 million in 2012 and a budget of $332 million has been requested for 2013.

California’s transportation capital outlays and local assistance were $5.0 billion in 2011, while such expenditures are estimated to be $10.2 billion in 2012 and $6.2 billion in 2013.  A substantial portion of the decrease between 2012 and 2013 is due to a reduction in expected Federal Trust highway funds.

Since 2008, the bidding environment in our markets has been much more competitive than in the past because of the following:

·   Reduced federal, state and local spending on transportation and water-related infrastructure.

·   Traditional competitors on larger transportation and water infrastructure projects appear to have been bidding at less than normal margins, sometimes at bid levels below our break-even pricing, in order to replenish their backlogs.

·   While our business includes only minimal residential and commercial infrastructure work, the severe fall-off in new projects in those markets has resulted in some residential and commercial infrastructure contractors bidding on smaller public sector transportation and water infrastructure projects, sometimes at bid levels below our break-even pricing, thus increasing competition and creating downward pressure on bid prices in our markets.

·   The entry of new competitors from other states.

These factors have limited our ability to replenish our backlog through successful bids for new projects and have compressed the profitability on many new projects where we submitted successful bids.  While we have been more aggressive in bidding for some projects, we have not bid at prices where we anticipated we would incur loss margins in order to obtain new backlog.  Nevertheless, in some instances we determined subsequent to the award that a job would most likely have a loss margin. Consistent with our policy, these losses are recorded when they become known.

Recent reductions in miles driven in the U.S. and more fuel efficient vehicles have reduced federal and state gasoline taxes and tolls collected.  In addition, until the MAP-21 legislation enacted in July 2012, the federal government had been extending financial assistance to the states on an interim basis which negatively impacted the states’ highway and bridge construction contracts awarded through the fiscal year 2012.

Further, the nationwide decline in home sales, the increase in foreclosures and the prolonged recession have resulted in decreases in property taxes and some other local taxes, which are among the sources of funding for municipal road, bridge and water infrastructure construction.  Expenditures by municipalities may also be limited due to federal, state and local funding limitations in the current economic environment.

These and other factors have adversely affected the levels of transportation and water infrastructure capital awards and expenditures in our markets, reducing opportunities to replace backlog at reasonable margins and increasing competition for new projects. See “Recent Developments ― Financial Results for 2011, Operational Issues and Outlook for 2012 Financial Results” in the 2011 Form 10-K for further discussion of the impact on our financial results.

While we do expect that our markets will ultimately recover from the conditions described above and that our backlog and revenues will grow and gross margins, net income and earnings per share will return to levels more consistent with historical rates of return, we cannot predict the timing of such a return to historical normalcy in our markets. We believe that the Company is in sound financial condition and has the resources and management experience to weather current market conditions and to continue to compete successfully for projects as they become available at acceptable profit margin levels.  See “Business−Markets,” “Business−Our Customers” and “Business−Competition” in the 2011 Form 10-K for a more detailed discussion of our markets and their funding sources.

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Results of Operations

Backlog at June 30, 2012

Backlog is our estimate of the revenues that we expect to earn in future periods on our construction projects. We generally add the anticipated revenue value of each new project to our backlog when management reasonably determines that we will be awarded the contract and there are no known impediments to being awarded the contract. As the construction on our projects progresses, we also increase or decrease backlog to take into account our estimates of the effects of changes in estimated quantities, changed conditions, change orders and other variations from initially anticipated contract revenues, including completion penalties and incentives. During the Current Quarter, we were awarded or were the apparent low bidder on $69 million in contracts, and at June 30, 2012, our backlog of $782 million included approximately $28 million of expected revenues for which the contracts had not yet been officially awarded. Historically, very few contracts that we have added to backlog have not subsequently been awarded and these have not materially affected our results of operations or financial condition.

Substantially all of the contracts in our contract backlog may be canceled at the election of the customer; however, we have not been materially adversely affected by contract cancellations or modifications in the past.

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Results of Operations for the Current Quarter as Compared to the Prior Quarter and for the Current Period as compared to the Prior Period

	Three Months ended June 30,									Six Months ended June 30,
	2012			2011			% Change			2012			2011			% Change
Revenues	$	168,709		$	128,498			31.3	%	$	267,134		$	227,740			17.3	%
Gross profit	$	15,159		$	13,582			11.6		$	17,031		$	21,181			(19.6	)
General and administrative expenses, net		(8,444	)		(6,300	)		34.0			(16,110	)		(12,356	)		30.4
Other operating income		1,525			5		NM				2,756			150		NM
Operating income		8,240			7,287			13.1			3,677			8,975			(59.0	)
Gains (loss) on the sale of securities and other		333			(41	)	NM				1,083			(245	)	NM
Interest income		511			565			(9.6	)		927			943			(1.7	)
Interest expense		(432	)		(374	)		15.5			(818	)		(588	)		39.1
Income before taxes		8,652			7,437			16.3			4,869	)		9,085			(46.4	)
Income tax benefit (expense)		(984	)		(1,145	)		(14.1	)		2,992			(1,311	)	NM
Net income		7,668			6,292			21.9			7,861			7,774			1.1
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures		(4,381	)		(2,081	)		110.5			(12,076	)		(3,519	)		243.2
Net income (loss) attributable to Sterling common stockholders	$	3,287		$	4,211			(21.9	)	$	(4,215	)	$	4,255		NM
Gross margin		9.0	%		10.6	%		(15.1	)		6.4	%		9.3	%		(31.2	)
Operating margin		4.9	%		5.7	%		(14.0	)		1.4	%		3.9	%		(64.1	)

	Amount as of
	June 30, 2012		March 31, 2012		December 31, 2011
Contract Backlog, end of period	$	782,000	$	868,000	$	741,000

Revenues

Revenues for the Current Quarter increased 31.3% compared with the Prior Quarter and 17.3% for the Current Period compared with the Prior Period. Most of the increase for both the Current Quarter and Current Period is attributable to revenues in Arizona and California of $35.6 million in the Current Quarter and $47.8 million in the Current Period.  Prior to the August 1, 2011 acquisitions of JBC and Myers, we did not perform any work in these states.  We also had higher revenues in Nevada reflecting the impact of the contracts assumed from Aggregate Industries, Inc. in January 2012 discussed in Note 8.  Revenues from contracts in Texas decreased for the Current Quarter and Period while revenues in Utah were comparable to the Prior Quarter and Prior Period.

Gross Profit

Gross profit increased $1.6 million for the Current Quarter compared with the Prior Quarter, but decreased $4.2 million for the Current Period compared with the Prior Period.  Gross margins decreased to 9.0% in the Current Quarter from 10.6% in the Prior Quarter and to 6.4% in the Current Period from 9.3% in the Prior Period.  The Current Quarter and Current Period were impacted by downward revisions of estimated revenues and gross profit on a number of construction projects, primarily in Texas.  For the Current Quarter, however, upward revisions on projects in Utah substantially offset the downward revisions for Texas projects.  While there are a number of factors which cause the costs incurred and gross profit realized on our contracts to vary, sometimes substantially, from our original projections, the primary factors which resulted in downward revisions in estimates in the Current Quarter were:

·   conditions or contract requirements that differed from those assumed in the original bid or contract;

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·   lower than expected productivity levels; and

·   delays in quickly identifying and taking measures to address issues which arose during construction.

At June 30, 2012, we had approximately 99 contracts-in-progress which were less than 90% complete of various sizes, of different expected profitability and in various stages of completion.  The nearer a contract progresses toward completion, the more visibility we have in refining our estimate of total revenues (including incentives, delay penalties and change orders), costs and gross profit.  Thus gross profit as a percent of revenues can increase or decrease from comparable and sequential quarters due to variations among contracts and depending upon the stage of completion of contracts.

General and administrative expenses, net of other income

General and administrative expenses for the Current Quarter and Current Period included general and administrative expenses for JBC and Myers which we acquired on August 1, 2011 as well as an increase in professional fees.  As a percent of revenues, general and administrative expenses were comparable between the quarters with 5.0% in the Current Quarter compared with 4.9% in the Prior Quarter.  General and administrative expenses for the Current Period as a percent of revenues was higher at 6.0% compared to 5.4% for the Prior Period as a result of the increase in professional fees.

Income taxes

Our effective income tax rates for the Current and Prior Quarters were 11.4% and 15.4%, respectively, and for the Current and Prior Periods were (61.7)% and 14.4%, respectively.  The effective income tax rates varied from the statutory rate primarily as a result of net income attributable to noncontrolling interest owners which is taxed to those owners rather than Sterling.  Excluding the impact of net income attributable to noncontrolling interest owners, our effective income tax rates for the Current and Prior Quarters were 23.1% and 21.4%, respectively, and for the Current and Prior Periods were 41.4% and 23.6%, respectively.  The effective rate for each of these periods reflects the impact of nontaxable interest income.  In addition, the Current Period reflects the impact of applying the estimated overall effective rate for 2012 to Current Quarter pretax income in order to allocate the tax provision within the current annual period.

Net income attributable to noncontrolling interests

The increase in net income attributable to noncontrolling interest owners in the Current Quarter compared with the Prior Quarter is primarily related to net income attributable to the 20% noncontrolling interest owners in RLW, our 80% owned subsidiary. As discussed further in Note 8 to the condensed consolidated financial statements, the members of RLW, including the Company, agreed to amend RLW’s operating agreement effective January 1, 2012 to provide that any goodwill impairment, including the 2011 fourth quarter goodwill impairment, is not to be allocated to RLW for the purpose of calculating the distributions to be made to the RLW noncontrolling interest holders.  This amendment resulted in an increase in the net income attributable to RLW’s noncontrolling interests of $6,717,000 during the three months ended March 31, 2012.  This increase is included in “Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures” in the accompanying condensed consolidated statement of operations with an increase in the “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the condensed consolidated balance sheet.  This increase has a related tax impact of $2,351,000 which increased the tax benefit for the period.

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Historical Cash Flows

The following table sets forth information about our cash flows and liquidity (in thousands):

	Six Months Ended  June 30,
	2012			2011
Net cash provided by (used in):
Operating activities	$	23,131		$	6,568
Capital expenditures		(17,856	)		(15,171	)
Proceeds from sale of property and equipment		6,847			564
Net purchases of short-term securities		(4,341	)		(24,561	)
Distributions to noncontrolling interest owners		(4,885	)		(4,818	)
Purchases of treasury stock		--			(1,841	)
Other		(155	)		85
Total	$	2,741		$	(39,174	)

	Amount as of
	June 30,  2012		December 31, 2011
Cash and cash equivalents	$	19,112	$	16,371
Working capital	$	68,968	$	94,738

Operating Activities

Significantnon-cash items for the Current and Prior Periods included in operating activities are:

·   depreciation and amortization, which  increased from $8.4 million in the Prior Period to $9.4 million in the Current Period as a result of an increase in capital expenditures as well as depreciation associated with JBC and Myers which were acquired August 1, 2011; and

·   deferred tax expense (benefit); we had a deferred tax benefit of $3.1 million in the Current Period which is primarily attributable to the $2.4 million tax impact of the additional earnings to noncontrolling interest owners of $6.7 million discussed in Note 8; deferred tax of $1.7 million in the Prior Period is mainly attributable to amortization for tax return purposes of goodwill and accelerated tax depreciation.

Besides the net income in the Current and Prior Periods and the non-cash items discussed above, other significant components of cash flows from operations (which excludes the impact of changes attributable to the net assets of acquired companies) were:

·   net working capital attributable to contracts receivable, costs in excess of billings on uncompleted contracts, billings in excess of costs on uncompleted contracts and accounts payable decreased $14.5 million in the Current Period primarily;  net working capital attributable to these items increased $15.5 million in the Prior Period; and

·   accrued compensation and other liabilities increased by $3.7 million in the Current Period and increased by $3.5 million in the Prior Period.

Investing Activities

Capital equipment is acquired as needed to support increased levels of production activities and to replace retiring equipment.  Expenditures for the replacement of certain equipment and to expand our construction fleettotaled $17.9 million for the Current Period.  Proceeds from the sale of property and equipment totaled $6.8 million for the Current Period with an associated net gain of $2.7 million.  For the year ended December 31, 2011, capital expenditures totaled $24.0 million while proceeds from the sale of property and equipment totaled $1.3 million. Management expects capital expenditures in 2012 to be higher than 2011 to support our higher level of operations and to replace equipment.  In addition, proceeds from sales of property and equipment in the Current Period have been higher than in previous periods as management undertook a program to dispose of underutilized and aging equipment.

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During the Current Period, the Company had net purchases of short-term securities of $4.3 million compared to net purchases of short-term securities of $24.6 million in the Prior Period.  The net purchases in both periods were primarily due to the investment of cash generated by operations, after capital expenditures.  In addition, cash and cash equivalents at the beginning of the Prior Period were $49.4 million, and we invested a substantial portion of this balance during such period.

Financing Activities

Financing activities in the Current Period consisted of drawdowns and repayments on the Credit Facility and distributions to noncontrolling interest owners of $4.9 million.  Financing Activities in the Prior Period primarily reflect distributions to noncontrolling interest owners of $4.8 million and purchases of treasury stock of $1.8 million.

Liquidity and Sources of Capital

The need for working capital for our business varies due to fluctuations in:

·   customer receivables and contract retentions;

·   costs and estimated earnings in excess of billings;

·   billings in excess of costs and estimated earnings;

·   the size and status of contract mobilization payments and progress billings; and

·   the amounts owed to suppliers and subcontractors.

Some of these fluctuations can be significant. As of June 30, 2012, we had working capital of $69.0 million, a decrease of $25.8 million from December 31, 2011.  The decrease in working capital in the six months ended June 30, 2012 was the result of the following (in thousands):

Net income	$	7,861
Current portion of obligation to noncontrolling interest owners of RLW		(21,800	)
Depreciation and amortization		9,384
Deferred tax benefit		(3,136	)
Capital expenditures		(17,856	)
Proceeds from sales of property and equipment, net of gain (loss)		4,123
Distributions to noncontrolling interest owners		(4,885	)
Other		539
Total decrease in working capital	$	(25,770	)

As discussed further in Note 8, since the Company may be required to settle the obligation associated with the RLW Put/Call as well as any undistributed earnings to the noncontrolling interest owners within the next year, this amount is included in current liabilities under “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the accompanying condensed consolidated balance sheets.

In addition to our available cash and cash equivalents, short-term investments and cash provided by operations, from time to time, we use borrowings under our $50.0 million Credit Facility with Comerica Bank to finance our capital expenditures and working capital needs.  The Credit Facility has a maturity date of September 30, 2016.  Subject to the conditions under the terms of the Credit Facility, including the financial covenants discussed below, up to $50 million in borrowings and letters of credit is available under the amended Credit Facility with, under certain circumstances, an optional increase of $50 million. Borrowings under the Credit Facility are secured by all assets of the Company, other than proceeds and other rights under our construction contracts which are pledged to our bond surety.  At June 30, 2012, there were no borrowings outstanding under the Credit Facility; however, there was a letter of credit of $1.8 million outstanding which reduced availability under the Credit Facility to $48.2 million.

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Average borrowings under the Credit Facility for the Current Quarter were $27,000 and the largest amount of borrowings under the Credit Facility was $2.0 million on April 11, 2012.  Average borrowings under the Credit Facility for the fiscal year 2011 were $104,000, and the largest amount of borrowings under the Credit Facility was $8.0 million on September 30, 2011.

The Credit Facility is subject to our compliance with certain covenants, including financial covenants at quarter-end relating to leverage, tangible net worth, and asset coverage. The Credit Facility contains restrictions on our ability to:

·   Make distributions or pay dividends;

·   Incur liens and encumbrances;

·   Incur further indebtedness;

·   Guarantee obligations;

·   Dispose of a material portion of assets or merge with a third party; and

·   Make investments in securities.

To date the Company has not experienced any difficulty in borrowing under the Credit Facility, and the Company was in compliance with all covenants under the Credit Facility as of June 30, 2012.

Management believes that the Company has sufficient liquid financial resources, including the unused portion of its Credit Facility, to fund its requirements for the next twelve months of operations, including its bonding requirements, and the Company expects no material adverse change in its liquidity. Future developments or events, such as an increase in our level of purchases of equipment to support significantly higher backlog or an acquisition of another company could, however, affect our level of working capital and tangible net worth.

Inflation

Until 2008, inflation had not had a material impact on our financial results; however, that year’s increases in oil and fuel prices affected our cost of operations.  While the prices we have paid for oil and fuel and, generally, for other materials have decreased since 2008, in 2011 we saw the prices of oil and fuel rise once again, and we have seen increases in steel prices in other years.  Anticipated cost increases and reductions are considered in our bids to customers on proposed new construction projects.

In order to mitigate our exposure to increases in fuel prices, in April 2011, we commenced a program to hedge our exposure to increases in diesel fuel prices by entering into swap contracts for diesel fuel. We believe that the gains and losses on these contracts will tend to offset increases and decreases in the price we pay for diesel fuel and reduce the volatility of such fuel costs in our operations. As of June 30, 2012, we had diesel futures contracts for 620,000 gallons which fixed prices at an average of $3.06 per gallon.  This compares to the June 30, 2012 price for off-road ultra-low sulfur diesel published by Platts of $2.78.  Subsequent to June 30, 2012, we entered into diesel futures contracts for an additional 480,000 gallons which fixed prices at an average of $2.89 per gallon.  We will continue to evaluate this strategy and may increase or decrease our commitments depending on our forecast of the diesel fuel market and other operational considerations. There can be no assurance that this strategy will be successful.

Where we are the successful bidder on a project, we execute purchase orders with material suppliers and contracts with subcontractors covering the prices of most materials and services, other than oil and fuel products, thereby mitigating future price increases and supply disruptions.  These purchase orders and subcontracts do not contain quantity guarantees and we have no obligation to the suppliers or subcontractors for materials and services beyond those required to complete the contracts with our customers.  There can be no assurance that increases in prices of oil and fuel used in our business will be adequately covered by the estimated escalation we have included in our bids or derivative contracts entered into to hedge against certain such increases, and there can be no assurance that all of our vendors will fulfill their pricing and supply commitments under their purchase orders and contracts with the Company.  We adjust our total estimated costs on our projects when we believe it is probable that we will have cost increases which will not be recovered from customers, vendors or through project re-engineering.

31

Off-Balance Sheet Arrangements and Joint Ventures

As discussed further in “Item 7.  Management’s Discussion and Analysis of Financial Condition and Results of Operation−Off-Balance Sheet Arrangements and Joint Ventures” in the 2011 Form 10-K, we participate in various construction joint venture partnerships in order to share expertise, risk and resources for certain highly complex projects. The venture’s contract with the project owner typically requires joint and several liability among the joint venture partners. Although our agreements with our joint venture partners provide that each party will assume and fund its share of any losses resulting from a project, if one of our partners was unable to pay its share we would be fully liable for such share under our contract with the project owner. Circumstances that could lead to a loss under these guarantee arrangements include a partner’s inability to contribute additional funds to the venture in the event that the project incurred a loss or additional costs that we could incur should the partner fail to provide the services and resources toward project completion that had been committed to in the joint venture agreement.

At June 30, 2012, there was approximately $435 million of construction work to be completed on unconsolidated construction joint venture contracts, of which $122 million represented our proportionate share. Due to the joint and several liability under our joint venture arrangements, if one of our joint venture partners fails to perform, we and the remaining joint venture partners would be responsible for completion of the outstanding work. As of June 30, 2012, we are not aware of any situation that would require us to fulfill responsibilities of our joint venture partners pursuant to the joint and several liability under our contracts.

Off-balance sheet arrangements related to operating leases are discussed in “Contractual Obligations” in the 2011 Form 10-K.

Item 3.  Quantitative and Qualitative Disclosures about Market Risk

Changes in interest rates are one of our sources of market risks.  Outstanding indebtedness under our Credit Facility bears interest at floating rates.  The average borrowings under this facility during 2011 were $104,000.  Based on our expected levels of borrowings for 2012, we do not expect that a change in our interest rate would have a material impact on our results from operations.

We are exposed to market risk from changes in commodity prices.  In the normal course of business, we enter into derivative transactions, specifically cash flow hedges, to mitigate our exposure to diesel fuel commodity price movements.  We do not participate in these transactions for trading or speculative purposes.  While the use of these arrangements may limit the benefit to us of decreases in the prices of diesel fuel, it also limits the risk of adverse price movements.  The following represents the outstanding contracts at June 30, 2012:

		Price Per Gallon				Remaining	Fair Value of
Beginning	Ending	Range		Weighted Average		Volume (gallons)	Derivatives at June 30, 2012 (in thousands)
July 1, 2012	December 31, 2012		$3.03–$3.33		$3.16	210,000	$	(84	)
January 1, 2013	December 31, 2013		$2.80–$3.29		$3.01	410,000		(114	)
							$	(198	)

See “Inflation” above regarding risks associated with materials and fuel purchases required to complete our construction contracts.

Item 4.  Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company’s principal executive officer and principal financial officer reviewed and evaluated the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of December 31, 2011.  Based on the identification of a material weakness in our internal control over financial reporting described in “Management’s Report on Internal Control over Financial Reporting” in the 2011 Form 10-K, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were not effective at December 31, 2011 due to this material weakness.  While some improvements have been made to the estimating process,  there has not been an adequate period of time to evaluate the effectiveness of these changes, and the Company’s principal executive officer and principal financial officer are continuing to evaluate what, if any, additional changes should be made to the internal controls in order to address the material weakness.  Furthermore, the Company’s principal executive officer and principal financial officer have determined that the previously reported material weakness continues to exist as of June 30, 2012 and that no other material weaknesses existed as of June 30, 2012.

32

Changes in Internal Control over Financial Reporting

We maintain a system of internal control over financial reporting that is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States. Based on the most recent evaluation, except for certain changes made related to the estimation of revenues and gross profits on construction projects, we have concluded that no significant changes in our internal control over financial reporting occurred during the three months ended June 30, 2012 that have materially affected or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Controls

Internal control over financial reporting may not prevent or detect all errors and all fraud.  Also, projections of any evaluation of effectiveness of internal control to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

PART II – OTHER INFORMATION

Item 1.  Legal Proceedings

We are and may in the future be involved as a party to various legal proceedings that are incidental to the ordinary course of business.  We regularly analyze current information about these proceedings and, as necessary, provide accruals for probable liabilities on the eventual disposition of these matters.

In the opinion of management, after consultation with legal counsel, there are currently no threatened or pending legal matters that would reasonably be expected to have a material adverse impact on our consolidated results of operations, financial position or cash flows.

Item 1A. Risk Factors

There have not been any material changes from the risk factors previously disclosed in Item 1A of the 2011 Form 10-K.

Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds

None

Item 3.  Defaults Upon Senior Securities

None

Item 4.  Mine Safety Disclosures

None

Item 5.  Other Information

None

33

Item 6.  Exhibits

Exhibit No.             Description

31.1* Certification of Patrick T. Manning, Chief Executive Officer of Sterling Construction Company, Inc.

31.2* Certification of Elizabeth D. Brumley, Chief Financial Officer of Sterling Construction Company, Inc.

32* Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) of Patrick T. Manning, Chief Executive Officer, and Elizabeth D. Brumley, Chief Financial Officer

101.INS** XBRL Instance Document

101.SCH** XBRL Taxonomy Extension Schema Document

101.CAL** XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF** XBRL Taxonomy Extension Definition Linkbase Document

101.LAB** XBRL Taxonomy Extension Label Linkbase Document

101.PRE** XBRL Taxonomy Extension Presentation Linkbase Document

*      Filed herewith.

**    Submitted electronically herewith.

In accordance with Rule 402 of Regulation S-T, the XBRL information in Exhibit 101 to this Quarterly Report on Form 10-Q shall not be deemed to be filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

34

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:   August 8, 2012                                            By:   /s/ Patrick T. Manning

Patrick T. Manning.

Chairman and Chief Executive Officer

Date:   August 8, 2012                                            By:   /s/ Elizabeth D. Brumley

Elizabeth D. Brumley

Chief Financial Officer

35

STERLING CONSTRUCTION COMPANY, INC.

Quarterly Report on Form 10-Q for Period Ended June 30, 2012

Exhibit Index

Exhibit No.	Description
31.1*	Certification of Patrick T. Manning, Chief Executive Officer of Sterling Construction Company, Inc.
31.2*	Certification of Elizabeth D. Brumley, Chief Financial Officer of Sterling Construction Company, Inc.
32*	Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) of Patrick T. Manning, Chief Executive Officer, and Elizabeth D. Brumley, Chief Financial Officer.
101.INS**	XBRL Instance Document
101.SCH**	XBRL Taxonomy Extension Schema Document
101.CAL**	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF**	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE**	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith.

**   Submitted electronically herewith.

In accordance with Rule 402 of Regulation S-T, the XBRL information in Exhibit 101 to this Quarterly Report on Form 10-Q shall not be deemed to be filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.

EX-31.1

Exhibit 31.1

I, Patrick T. Manning, certify that:

1.   I have reviewed this Quarterly Report on Form 10-Q of Sterling Construction Company, Inc. for the three and six  months ended June 30, 2012;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))) for the registrant and have:

(a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)   Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

(a)   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:   August 8, 2012

By:      /s/ Patrick T. Manning

Patrick T. Manning

Chairman and Chief Executive Officer

EX-31.2

Exhibit 31.2

I, Elizabeth D. Brumley, certify that:

1.   I have reviewed this Quarterly Report on Form 10-Q of Sterling Construction Company, Inc. for the three and six months ended June 30, 2012;

2.   Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.   Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.   The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))) for the registrant and have:

(a)   Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)   Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)   Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)   Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.   The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

(a)   All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b)   Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:   August 8, 2012

By:      /s/ Elizabeth D. Brumley

Elizabeth D. Brumley

Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of the undersigned officers of Sterling Construction Company, Inc., a Delaware corporation (the “Company”), does hereby certify that, to his or her knowledge:

(i)   the Quarterly Report on Form 10-Q for the quarter ended June 30, 2012 (the “Form 10-Q”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(ii)   the information contained in the Form 10-Q fairly represents, in all material respects, the financial condition and results of operations of the Company.

Dated:  August 8, 2012                                /s/ Patrick T. Manning

Patrick T. Manning

Chief Executive Officer

Dated:  August 8, 2012                                /s/ Elizabeth D. Brumley

Elizabeth D. Brumley

Chief Financial Officer

XML

Note 6 - Income Taxes (Detail) - Summary reconciliation reported amount of income tax expense to the amount of income tax expense under federal statutory tax rates: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Tax expense at the federal statutory rate (in Dollars)			$ 1,698	$ 3,180
Tax expense at the federal statutory rate			35.00%	35.00%
State income tax expense (benefit), net of federal benefit (in Dollars)			9	(444)
State income tax expense (benefit), net of federal benefit			0.20%	(4.90%)
Taxes on subsidiaries' and joint ventures’ earnings attributable to noncontrolling ownership interests, which are liabilities of such owners (in Dollars)			(4,213)	(1,232)
Taxes on subsidiaries' and joint ventures’ earnings attributable to noncontrolling ownership interests, which are liabilities of such owners			(86.80%)	(13.60%)
Interest income not subject to federal tax			(235.00%)	(210.00%)
Interest income not subject to federal tax			(4.80%)	(2.30%)
Other permanent differences			(251.00%)	17.00%
Other permanent differences			(5.30%)	0.20%
Income tax expense (in Dollars)	$ 984	$ 1,145	$ (2,992)	$ 1,311
Income tax expense			(61.70%)	14.40%

XML

Note 11 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders (Detail)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	2,800	95,107
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	86,544

XML

Note 10 - Variable Interest Entities (Detail) - Summary financial information of Myers included int consolidated balance sheet: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 19,112	$ 16,371	$ 10,267	$ 49,441
Contracts receivable, including retainage	88,788	74,875
Other current assets	5,032	2,132
Total current assets	189,841	164,023
Property and equipment, net	102,403	83,429
Goodwill	54,460	54,050
Total assets	352,882	303,831
Current liabilities:
Accounts payable	62,272	40,064
Total current liabilities	4,367	2,723
Variable Interest Entity, Primary Beneficiary [Member]
Current assets:
Cash and cash equivalents	3,155	1,365
Contracts receivable, including retainage	12,133	2,244
Other current assets	135	419
Total current assets	15,423	4,028
Property and equipment, net	2,713	926
Goodwill	1,501	1,541
Total assets	19,637	6,495
Current liabilities:
Accounts payable	12,010	1,134
Other current liabilities	4,061	2,323
Total current liabilities	16,071	3,457
Long-term liabilities:
Total liabilities	$ 16,071	$ 3,457

XML

Note 4 - Property and Equipment (Detail) - Property and equipment are summarized as follows (in thousands): (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Property, Plant, and Equipment	$ 166,554	$ 154,761
Less accumulated depreciation	(64,151)	(71,332)
	102,403	83,429
Construction Equipment [Member]
Property, Plant, and Equipment	135,511	125,222
Transportation Equipment [Member]
Property, Plant, and Equipment	16,428	17,963
Building [Member]
Property, Plant, and Equipment	7,186	4,729
Office Equipment [Member]
Property, Plant, and Equipment	1,292	1,077
Construction in Progress [Member]
Property, Plant, and Equipment	1,051	2,544
Land [Member]
Property, Plant, and Equipment	4,886	3,026
Water Rights [Member]
Property, Plant, and Equipment	$ 200	$ 200

XML

Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Equity Method Investments [Table Text Block]

	Revenue		Net Income Attributable to Sterling Common Stockholders
JBC actual from January 1, 2012 to June 30, 2012	$	20,176	$	888
Myers actual from January 1, 2012 to June 30, 2012		23,570		192
Supplemental pro forma results of the Company, JBC, and Myers on a combined basis for 1/1/2011 – 6/30/2011 (unaudited)		237,304		4,184

	Six Months Ended June 30,
	2012			2011
Balance, beginning of period	$	16,848		$	28,724
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures		11,780			3,519
Accretion of interest on RLW Put/Call		497			424
Change in fair value of RLW Put/Call		733			--
Change in fair value of RHB put/call		--			1,054
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies		15,196			--
Distributions to noncontrolling interest owners		(4,885	)		(4,818	)
Balance, end of period	$	40,169		$	28,903

XML

Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Detail) - Summary of noncontrolling interests revenues and earnings included in the Company's condensed consolidated financial statements: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue	$ 168,709	$ 128,498	$ 267,134	$ 227,740
Supplemental pro forma results of the Company, JBC, and Myers on a combined basis for 1/1/2011 – 6/30/2011 (unaudited)				237,304
Supplemental pro forma results of the Company, JBC, and Myers on a combined basis for 1/1/2011 – 6/30/2011 (unaudited)				4,184
JBC [Member]
Revenue			20,176
Net Income Attributable to Sterling Common Stockholders			888
Myers & Sons Construction L.P. [Member]
Revenue			23,570
Net Income Attributable to Sterling Common Stockholders			$ 192

XML

Note 6 - Income Taxes (Detail) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%
RLW [Member]
Increase (Decrease) in Income Taxes	2,351,000
Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest	6,717,000

XML

Note 10 - Variable Interest Entities (Detail) - Summary financial information of Myers included in the consolidated statements of operations: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues	$ 168,709	$ 128,498	$ 267,134	$ 227,740
Operating income	8,240	7,287	3,677	8,975
Net income attributable to Sterling common stockholders			(12,076)	(3,519)
Variable Interest Entity, Primary Beneficiary [Member]
Revenues	19,056		23,570
Operating income	633		602
Net income attributable to Sterling common stockholders	$ 204		$ 192

XML

Note 2 - Cash and Cash Equivalents and Short-term Investments

6 Months Ended

Jun. 30, 2012

Cash, Cash Equivalents, and Short-term Investments [Text Block]

2.   Cash and Cash Equivalents and Short-term Investments

The Company considers all highly liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents.  At June 30, 2012, $18.4 million of cash and cash equivalents were fully insured by the FDIC under its standard maximum deposit insurance amount guidelines.  At June 30, 2012, cash and cash equivalents included $3.7 million belonging to majority-owned joint ventures consolidated in these financial statements, which generally cannot be used for purposes outside the joint ventures.

Short-term investments include mutual funds and government bonds which are considered available-for-sale securities and measured at fair value as required under applicable GAAP.  Government bonds have maturity dates of 2013-2043.  At June 30, 2012 and December 31, 2011, the Company had short-term investments as follows (in thousands):

	June 30, 2012
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	29,012	$	29,012	$	--	$	258	$	12
Municipal bonds		20,664		--		20,664		765		46
Total securities available-for-sale	$	49,676	$	29,012	$	20,664	$	1,023	$	58

	December 31, 2011
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	24,851	$	24,851	$	--	$	383	$	--
Municipal bonds		20,004		--		20,004		617		15
Total securities available-for-sale	$	44,855	$	24,851	$	20,004	$	1,000	$	15

The amortized cost basis of the above securities at June 30, 2012 and December 31, 2011 was $48.7 million and $44.3 million, respectively.  Municipal bond securities are the only securities held by the Company where fair value does not equal amortized cost.  The amortized cost for municipal bond securities was $19.7 million and $19.4 million at June 30, 2012 and December 31, 2011, respectively.

The valuation inputs for Levels 1, 2 and 3 are as follows:

Level 1 Inputs – Valuation based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.

Level 2 Inputs – Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.

Level 3 Inputs – Based on unobservable inputs reflecting the Company’s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.

The Company had no short-term investments valued with Level 3 inputs at either of the balance sheet dates.

Gains and losses realized on short-term investment securities are included in “Gains (losses) on sale of securities and other” in the accompanying statements of operations.  Unrealized gains (losses) on short-term investments are included in accumulated other comprehensive income in stockholders’ equity, net of tax, as the gains and losses may be temporary.  For the six months ended June 30, 2012, total proceeds from sales of short-term investments were $14.7 million with gross realized gains of $501,000 and gross realized losses of $0.  The unrealized gains (losses) on short-term investments included in accumulated other comprehensive income, net of taxes of $338,000, was $627,000 at June 30, 2012.  Upon the sale of short-term investments, the cost basis used to determine the gain or loss is based on the specific identification of the security sold.  All items included in accumulated other comprehensive income are at the corporate level, and no portion is attributable to noncontrolling interests.

For the three and six months ended June 30, 2012 and 2011, the Company earned interest income of $352,000 and $703,000, and $378,000 and $943,000, respectively, on its cash, cash equivalents and short-term investments.

XML

Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Detail) - The following table summarizes the changes in the obligation for noncontrolling owners' interests in subsidiaries and joint ventures: (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Balance, beginning of period	$ 16,848	$ 28,724
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures	11,780	3,519
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies	15,196
Distributions to noncontrolling interest owners	(4,885)	(4,818)
Balance, end of period	40,169	28,903
Accretion Expense [Member] | RLW [Member]
Accretion of interest on RLW Put/Call	497	424
RLW [Member]
Change in fair value of RLW Put/Call	733
Change in fair value of RHB put/call	733
RHB [Member]
Change in fair value of RLW Put/Call		1,054
Change in fair value of RHB put/call		$ 1,054

XML

Note 2 - Cash and Cash Equivalents and Short-term Investments (Detail) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Cash, FDIC Insured Amount	$ 18,400,000	$ 18,400,000
Available-for-sale Equity Securities, Amortized Cost Basis	48,700,000	48,700,000		44,300,000
Proceeds from Sale of Available-for-sale Securities		14,742,000	58,601,000
Available-for-sale Securities, Gross Realized Gains		501,000
Available-for-sale Securities, Gross Realized Losses		0
Other Comprehensive Income (Loss), Tax		338,000
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	627,000	627,000
Investment Income, Interest	352,000	703,000	943,000
Municipal Bond Securities [Member]
Available-for-sale Equity Securities, Amortized Cost Basis	19,700,000	19,700,000		19,400,000
Majority Owned Joint Ventures [Member]
Restricted Cash and Cash Equivalents	3,700,000	3,700,000
Cash Equivalents [Member]
Investment Income, Interest			$ 378,000

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Note 1 - Summary of Business and Significant Accounting Policies (Detail) (USD $)	1 Months Ended	5 Months Ended	6 Months Ended
	Aug. 31, 2011	Dec. 31, 2011	Jun. 30, 2012
Ownership Interest In Joint Venture			50.00%
Owenership Interest In Subsidiary			50.00%
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	80.00%	50.00%
Estimated Construction Revenues, Before Tax (in Dollars)			$ 4,700,000
Estimated Construction Revenue Per Diluted Share (in Dollars per share)			$ 0.24
Notes Payable, Noncurrent (in Dollars)			500,000
Mortgage Loans on Real Estate, Number of Loans			1
Mortgage Loans on Real Estate (in Dollars)		$ 336,000	$ 299,000
Mortgage Loans on Real Estate, Interest Rate			3.50%
Myers & Sons Construction L.P. [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage		50.00%
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Percentage		50.00%
Minimum [Member]
Revenue Recognition Percentage of Completion Range			12 months
Maximum [Member]
Revenue Recognition Percentage of Completion Range			36 months

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Note 9 - Stockholders' Equity (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Allocated Share-based Compensation Expense	$ 133,000	$ 133,000	$ 263,000	$ 258,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	781,000		781,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition			2 years 109 days
Proceeds from Stock Options Exercised			$ 56,000	$ 122,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number (in Shares)	121,184		121,184
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in Shares)			31,000

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Note 2 - Cash and Cash Equivalents and Short-term Investments (Detail) - Summary of short-term investments: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Fair Value	$ 49,676	$ 44,855
Gross Unrealized Gains (pre-tax)	1,023	1,000
Gross Unrealized Losses (pre-tax)	58	15
Mutual Funds [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value	29,012	24,851
Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value	29,012	24,851
Mutual Funds [Member]
Gross Unrealized Gains (pre-tax)	258	383
Gross Unrealized Losses (pre-tax)	12
Municipal Bond Securities [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value	20,664	20,004
Municipal Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value	20,664	20,004
Municipal Bond Securities [Member]
Gross Unrealized Gains (pre-tax)	765	617
Gross Unrealized Losses (pre-tax)	46	15
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value	49,676	44,855
Fair Value, Inputs, Level 1 [Member]
Fair Value	29,012	24,851
Fair Value, Inputs, Level 2 [Member]
Fair Value	$ 20,664	$ 20,004

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Note 3 - Construction Joint Ventures (Detail) - Summary of joint venture condensed financial information included as part of consolidated financial statements: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Total combined:
Current assets	$ 189,841	$ 164,023
Less current liabilities	120,873	69,285
Sterling’s receivables from and equity in construction joint ventures	6,889	6,057
Corporate Joint Venture [Member]
Total combined:
Current assets	6,364	108,458
Less current liabilities	(3,517)	(86,023)
Net assets	2,847	22,435
Backlog	435,385	539,844
Sterling’s noncontrolling interest in backlog	121,877	127,130
Sterling’s receivables from and equity in construction joint ventures	$ 6,889	$ 6,057

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Note 1 - Summary of Business and Significant Accounting Policies

6 Months Ended

Jun. 30, 2012

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

1.   Summary of Business and Significant Accounting Policies

Basis of Presentation

Sterling Construction Company, Inc. (“Sterling” or “the Company”), a Delaware corporation, is a leading heavy civil construction company that specializes in the building, reconstruction and repair of transportation and water infrastructure in markets in Texas, Utah, Nevada, Arizona, California and other states in which we see opportunities. Our transportation infrastructure projects include highways, roads, bridges and light and commuter rail foundations and structures, and our water infrastructure projects include water, wastewater and storm drainage systems. Sterling provides general contracting services, including excavating, concrete and asphalt paving, installation of large-diameter water and wastewater distribution systems, construction of bridges and similar large structures, construction of light and commuter rail infrastructure, concrete and asphalt batch plant operations, and concrete crushing and aggregate operations primarily to public sector clients. We purchase the necessary materials for our contracts, and perform the majority of the work required by our contracts with our own crews and equipment.

For a more detailed discussion of the Company’s business, readers of this Report are urged to review “Item 1. Business” of the Annual Report on Form 10-K for the year ended December 31, 2011 (“2011 Form 10-K”) and the sections of this Report entitled “Backlog at June 30, 2012” and “Our Markets” under Item 2.

The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities, and all significant intercompany accounts and transactions have been eliminated in consolidation. For all periods presented, the Company had no subsidiaries where its ownership interests were less than 50%.

Under accounting principles generally accepted in the United States (“GAAP”), the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity.  This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring us to consolidate the entity in which we have a non-majority variable interest.

On August 1, 2011, we acquired a 50% interest in a limited partnership which the Company determined to be a variable interest entity.  Prior to this, the Company had no participation in an entity determined to be a variable interest entity.  As discussed further in Note 3 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K, the Company determined that it exercises primary control over activities of Myers & Sons Construction, L.P. (“Myers”), and it is exposed to more than 50% of potential losses from the partnership.  Therefore, the Company consolidates Myers in the consolidated financial statements and includes the other partners’ interests in the equity and net income of the partnership in the balance sheet line item “Noncontrolling interests” in “Equity” and the statement of operations line item “Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures,” respectively.

Where the Company is a noncontrolling joint venture partner, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the consolidated statements of operations and as a single line item (“Receivables from and equity in construction joint ventures”) in the consolidated balance sheets.  See Note 6 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information regarding the Company’s construction joint ventures, including those where the Company does not have a controlling ownership interest.

The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and should be read in conjunction with the 2011 Form 10-K.  Certain information and note disclosures prepared in accordance with GAAP have been either condensed or omitted pursuant to SEC rules and regulations.  The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company’s financial position at June 30, 2012 and the results of operations and cash flows for the periods presented.  The December 31, 2011 condensed consolidated balance sheet data was derived from audited financial statements, but, as discussed above, does not include all disclosures required by GAAP.  Interim results may be subject to significant seasonal variations, and the results of operations for the three months and six months ended June 30, 2012 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.

Our Markets

Demand for transportation and water infrastructure depends on a variety of factors, including overall population growth, economic expansion and the vitality of the market areas in which we operate, as well as unique local topographical, structural and environmental issues.  In addition to these factors, demand for the replacement of infrastructure is driven by the general aging of infrastructure and the need for technical improvements to achieve more efficient or safer use of infrastructure and resources.  Funding for this infrastructure depends on federal, state and local governmental resources, budgets and authorizations.

Since the economic downturn in late 2008, the bidding environment in our markets has been much more competitive than in the past because of the following:

·   Reduced federal, state and local spending on transportation and water-related infrastructure.

·   Traditional competitors on larger transportation and water infrastructure projects appear to have been bidding at less than normal margins, sometimes at bid levels below our break-even pricing, in order to replenish their backlogs.

·   While our business includes only minimal residential and commercial infrastructure work, the severe fall-off in new projects in those markets has resulted in some residential and commercial infrastructure contractors bidding on smaller public sector transportation and water infrastructure projects, sometimes at bid levels below our break-even pricing, thus increasing competition and creating downward pressure on bid prices in our markets.

·   The entry of new competitors from other states.

These factors have limited our ability to replenish our backlog through successful bids for new projects and have compressed the profitability on the new projects where we submitted successful bids. While we have been more aggressive in reducing the anticipated margins we use to bid on some projects, we have not bid at anticipated loss margins in order to obtain new backlog.

Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.  Certain of the Company’s accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets, and income taxes.  Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual amounts could differ from those estimates.

Other  Accounting Policies

The Company’s significant accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K.  These accounting policies include, but are not limited to, those related to:

·contracts receivable, including retainage

·revenue recognition

·valuation of property and equipment, goodwill and other long-lived assets

·construction joint ventures

·income taxes

·segment reporting

There have been no material changes to significant accounting policies since December 31, 2011.

Construction Revenue Recognition

The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.

Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract.  Our contracts generally take 12 to 36 months to complete.

Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Changes in estimated revenues and gross margin on certain construction contracts during the six months ended June 30, 2012 resulted in a net charge of $4.7 million included in the operating results and a $4.0 million after-tax charge or $0.24 per diluted share attributable to Sterling common stockholders.

Financial Instruments

The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties.  The Company’s financial instruments are cash and cash equivalents, short-term investments, contracts receivable, derivatives, accounts payable, mortgage payable, a credit facility with Comerica Bank (“Credit Facility”), $500,000 of demand notes payable, the put related to certain noncontrolling owners’ interests in subsidiaries and an earn-out liability related to the acquisition of J. Banicki Construction, Inc. (“JBC”).  The recorded values of cash and cash equivalents, short-term investments, contracts receivable and accounts payable approximate their fair values based on their short-term nature.  The recorded value of the Credit Facility debt approximates its fair value, as interest approximates market rates.  See Note 5 regarding the fair value of derivatives and Note 8 regarding the fair value of the put and the earn-out liability.  We had one mortgage outstanding at June 30, 2012 and December 31, 2011 with a remaining balance of $299,000 and $336,000, respectively.  The mortgage was accruing interest at 3.50% at both June 30, 2012 and December 31, 2011 and contains pre-payment penalties.  At June 30, 2012 and December 31, 2011 the fair value of the mortgage approximated the book value. To determine the fair value of the mortgage, the amount of future cash flows was discounted using the Company’s borrowing rate on its Credit Facility.  The recorded value of the demand notes payable approximates the fair value as the interest rate approximates market rates and as the notes are due upon demand (i.e., they are short-term in nature).  See Note 10 for further information regarding the demand notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (see Note 13 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K).

Recent Accounting Pronouncements

In December 2011, the Financial Accounting Standards Board (“FASB”) amended authoritative guidance associated with offsetting assets and liabilities.  This amended guidance enhances disclosures by requiring improved information about financial instruments and derivatives instruments that are offset in accordance with current GAAP or subject to an enforceable master netting agreement.  The amendment to this authoritative guidance will be placed into effect for the Company on January 1, 2013 and must be applied retrospectively.  Except for the additional disclosure requirements, this amendment will have no impact on our consolidated financial statements upon adoption.

In May 2011, the FASB amended authoritative guidance associated with fair value measurements.  This amended guidance defines certain requirements for measuring fair value and for disclosing information about fair value measurement in accordance with GAAP.  The amendments to authoritative guidance associated with fair value measurements were effective for the Company on January 1, 2012 and have been applied prospectively.  The adoption of this guidance did not have a material impact on our consolidated financial statements.

Reclassifications

Balances related to accrued accounts payable which had been included in “Other current liabilities” in the prior year balance sheet have been reclassified to “Accounts payable” to conform to current year presentation.

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Note 3 - Construction Joint Ventures (Detail) - Summary of joint venture condensed financial information included as part of consolidated financial statements: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Total combined:
Revenues	$ 168,709	$ 128,498	$ 267,134	$ 227,740
Corporate Joint Venture [Member]
Total combined:
Revenues	215,210	113,550	305,584	200,236
Income before tax	20,299	9,478	28,861	16,405
Sterling’s proportionate share:
Revenues	37,885	14,189	53,801	25,030
Income before tax	$ 3,337	$ 1,184	$ 4,750	$ 2,012

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Note 7 - Contingencies Related to Litigation (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Jan. 31, 2010
Litigation Settlement, Gross	$ 1.0
Litigation Settlement Bond	$ 1.3

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Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 19,112,000	$ 16,371,000
Short-term investments	49,676,000	44,855,000
Contracts receivable, including retainage	88,788,000	74,875,000
Costs and estimated earnings in excess of billings on uncompleted contracts	16,131,000	16,509,000
Inventories	3,547,000	1,922,000
Deferred tax asset, net	666,000	1,302,000
Receivables from and equity in construction joint ventures	6,889,000	6,057,000
Other current assets	5,032,000	2,132,000
Total current assets	189,841,000	164,023,000
Property and equipment, net	102,403,000	83,429,000
Goodwill	54,460,000	54,050,000
Other assets, net	6,178,000	2,329,000
Total assets	352,882,000	303,831,000
Current liabilities:
Accounts payable	62,272,000	40,064,000
Billings in excess of costs and estimated earnings on uncompleted contracts	24,437,000	18,583,000
Current maturities of long-term debt	573,000	573,000
Income taxes payable	5,000	2,013,000
Accrued compensation	7,419,000	5,329,000
Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures	21,800,000
Other current liabilities	4,367,000	2,723,000
Total current liabilities	120,873,000	69,285,000
Long-term liabilities:
Long-term debt, net of current maturities	268,000	263,000
Deferred tax liability, net	368,000
Other long-term liabilities	2,417,000	2,597,000
Total long-term liabilities	3,053,000	2,860,000
Obligation for noncontrolling owners’ interests in subsidiaries and joint ventures	18,369,000	16,848,000
Sterling stockholders’ equity:
Common stock, par value $0.01 per share; 19,000,000 shares authorized, 16,393,716 and 16,321,116 shares issued	163,000	163,000
Additional paid in capital	196,325,000	196,143,000
Retained earnings	11,818,000	16,509,000
Accumulated other comprehensive income	498,000	496,000
Total Sterling common stockholders’ equity	208,804,000	213,311,000
Noncontrolling interests	1,783,000	1,527,000
Total equity	210,587,000	214,838,000
Total liabilities and equity	$ 352,882,000	$ 303,831,000

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Note 10 - Variable Interest Entities (Detail) (USD $)	1 Months Ended	5 Months Ended		6 Months Ended
	Aug. 31, 2011	Dec. 31, 2011	Jun. 30, 2012	Jun. 30, 2012 Myers [Member]
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	80.00%	50.00%		50.00%
Other Notes Payable, Noncurrent (in Dollars)			$ 500,000

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Condensed Consolidated Statement of Changes in Equity (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings, Unappropriated [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	Total
Balance at January 1, 2012 at Dec. 31, 2011	$ 163,000	$ 196,143,000	$ 16,509,000	$ 496,000	$ 1,527,000	$ 214,838,000
Balance at January 1, 2012 (in Shares) at Dec. 31, 2011	16,321
Net income (loss)			(4,215,000)		296,000	(3,919,000)
Other comprehensive income				2,000		2,000
Stock issued upon option exercises		47,000				47,000
Stock issued upon option exercises (in Shares)	23
Tax impact from exercise of stock options		(129,000)				(129,000)
Issuance and amortization of restricted stock	50	264,000				264,000
Issuance and amortization of restricted stock	50	264,000				264,000
Revaluation of noncontrolling interest RLW put/call liability and other, net of tax			(476,000)		(40,000)	(516,000)
Balance at June 30, 2012 at Jun. 30, 2012	$ 163,000	$ 196,325,000	$ 11,818,000	$ 498,000	$ 1,783,000	$ 210,587,000
Balance at June 30, 2012 (in Shares) at Jun. 30, 2012	16,394

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Note 5 - Derivative Financial Instruments (Detail) - Summary of derivative instruments: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Derivative liabilities:
Other current liabilities	$ 156	$ 147
Other long-term liabilities	42	76
	$ 198	$ 223

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Note 4 - Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2012

Property, Plant and Equipment [Table Text Block]

	June 30, 2012			December 31, 2011
Construction equipment	$	135,511		$	125,222
Transportation equipment		16,428			17,963
Buildings		7,186			4, 729
Office equipment		1,292			1,077
Construction in progress		1,051			2,544
Land		4,886			3,026
Water rights		200			200
		166,554			154,761
Less accumulated depreciation		(64,151	)		(71,332	)
	$	102,403		$	83,429

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Note 5 - Derivative Financial Instruments (Detail) - Summary of the effects of commodity derivative instruments on the condensed consolidated statements of operations and comprehensive income (loss): (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Increase in fair value of derivatives included in other comprehensive income (effective portion)	$ 25
Realized loss included in cost of revenues (effective portion)	$ (44)

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Note 6 - Income Taxes (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Current tax expense (benefit)	$	1,169		$	748	$	144		$	(354	)
Deferred tax expense (benefit)		(185	)		397		(3,136	)		1,665
Total tax expense (benefit)	$	984		$	1,145	$	(2,992	)	$	1,311

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2012						2011
	Amount			%			Amount			%
Tax expense at the federal statutory rate	$	1,698			35.0	%	$	3,180			35.0	%
State income tax expense (benefit), net of federal benefit		9			0.2			(444	)		(4.9	)
Taxes on subsidiaries' and joint ventures’ earnings attributable to noncontrolling ownership interests, which are liabilities of such owners		(4,213	)		(86.8	)		(1,232	)		(13.6	)
Interest income not subject to federal tax		(235	)		(4.8	)		(210	)		(2.3	)
Other permanent differences		(251	)		(5.3	)		17			0.2
Income tax expense	$	(2,992	)		(61.7	)%	$	1,311			14.4	%

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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Net income (loss) attributable to Sterling common stockholders	$ (4,215)	$ 4,255
Plus: Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures	12,076	3,519
Net income	7,861	7,774
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,384	8,436
Gain on disposal of property and equipment	(2,724)	(154)
Deferred tax expense (benefit)	(3,136)	1,665
Stock-based compensation expense	264	258
Interest expense accreted on noncontrolling interests	497	424
Loss (gain) on sale of securities and other	(696)	245
Tax impact from exercise of stock options	129
Other changes in operating assets and liabilities:
Increase in contracts receivable	(13,913)	(7,334)
(Increase) decrease in costs and estimated earnings in excess of billings on uncompleted contracts	378	(9,382)
Increase in income tax receivable		(1,131)
(Increase) decrease in prepaid expenses and other assets	(3,986)	203
(Increase) decrease in receivables from and equity in construction joint ventures	(832)	834
Increase in trade payables	22,208	3,148
Increase in billings in excess of costs and estimated earnings on uncompleted contracts	5,854	1,217
Increase in accrued compensation and other liabilities	1,843	365
Net cash provided by operating activities	23,131	6,568
Cash flows from investing activities:
Additions to property and equipment	(17,856)	(15,171)
Proceeds from sale of property and equipment	6,847	564
Purchases of short-term securities, available for sale	(19,083)	(83,162)
Sales of short-term securities, available for sale	14,742	58,601
Net cash used in investing activities	(15,350)	(39,168)
Cash flows from financing activities:
Cumulative daily drawdowns – Credit Facility	3,000	2,000
Cumulative daily repayments – Credit Facility	(3,000)	(2,000)
Repayments under long-term obligations	(73)	(37)
Purchases of treasury stock		(1,841)
Issuance of common stock pursuant to warrants and options exercised	47	122
Distributions to noncontrolling interest owners	(4,885)	(4,818)
Utilization of tax impact from exercise of stock options	(129)
Net cash used in financing activities	(5,040)	(6,574)
Net increase (decrease) in cash and cash equivalents	2,741	(39,174)
Cash and cash equivalents at beginning of period	16,371	49,441
Cash and cash equivalents at end of period	19,112	10,267
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	534	64
Cash paid during the period for income taxes	2,755	2,029
Non-cash items:
Revaluation of noncontrolling interest – RLW put/call liability, net of tax	476
Reclassification of amounts payable to noncontrolling interest owner		1,054
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies	$ 15,196

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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Preferred stock par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Common stock par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	19,000,000	19,000,000
Common stock, shares issued	16,393,716	16,321,116

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Note 10 - Variable Interest Entities

6 Months Ended

Jun. 30, 2012

Variable Interest Entities [Text Block]

10.   Variable Interest Entities

We own a 50% interest in Myers of which we are the primary beneficiary and have consolidated Myers into our financial statements.  Because the Company exercises primary control over activities of the partnership and it is exposed to the majority of potential losses of the partnership, the Company has consolidated Myers within the Company’s financial statements from August 1, 2011, the date of acquisition.  See Note 2 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for additional information on the acquisition of this limited partnership.

The condensed financial information of Myers which is reflected in our condensed consolidated balance sheets and statements of operations is as follows (in thousands):

	June 30, 2012		December 31, 2011
Assets:
Current assets:
Cash and cash equivalents	$	3,155	$	1,365
Contracts receivable, including retainage		12,133		2,244
Other current assets		135		419
Total current assets		15,423		4,028
Property and equipment, net		2,713		926
Goodwill		1,501		1,541
Total assets	$	19,637	$	6,495
Liabilities:
Current liabilities:
Accounts payable	$	12,010	$	1,134
Other current liabilities		4,061		2,323
Total current liabilities		16,071		3,457
Long-term liabilities:
Other long-term liabilities		--		--
Total long-term liabilities		--		--
Total liabilities	$	16,071	$	3,457

	Three Months Ended June 30, 2012		Six Months Ended June 30, 2012
Revenues	$	19,056	$	23,570
Operating income		633		602
Net income attributable to Sterling common stockholders		204		192

Other current liabilities shown in the table above include $500,000 in demand notes payable that are due to one of the noncontrolling interest owners.

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Document And Entity Information	6 Months Ended
	Jun. 30, 2012	Jul. 31, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	STERLING CONSTRUCTION CO INC
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		16,393,716
Amendment Flag	false
Entity Central Index Key	0000874238
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Jun. 30, 2012
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2

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Note 11 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders

6 Months Ended

Jun. 30, 2012

Earnings Per Share [Text Block]

11.   Net Income (Loss) per Share Attributable to Sterling Common Stockholders

Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period.  Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive stock options and warrants using the treasury stock method.  The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income attributable to Sterling common stockholders (in thousands, except per share data):

	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Numerator:
Net income (loss) attributable to Sterling common stockholders	$	3,287		$	4,211	$	(4,215	)	$	4,255
Revaluation of the RLW noncontrolling interest put/call liability reflected in retained earnings, net of tax		(777	)		--		(476	)		--
	$	2,510		$	4,211	$	(4,691	)	$	4,255
Denominator:
Weighted average common shares outstanding — basic		16,360			16,484		16,341			16,474
Shares for dilutive stock options and warrants		84			111		--			130
Weighted average common shares outstanding and assumed conversions— diluted		16,444			16,595		16,341			16,604
Basic net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.26	$	(0.29	)	$	0.26
Diluted net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.25	$	(0.29	)	$	0.26

There were 2,800 and 95,107 weighted average options outstanding during the three and six months ended June 30, 2012 and 2011 which were considered antidilutive as the option exercise price exceeded the average share market price and were therefore excluded from the denominator used for computing diluted net income (loss) per share attributable to Sterling common stockholders.  In addition, and in accordance with the treasury stock method, 86,544 shares of stock options and restricted stock were excluded from the diluted weighted average common shares outstanding for the six months ended June 30, 2012 as the Company incurred a loss during this period and the impact of such shares would have been antidilutive.

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Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues	$ 168,709	$ 128,498	$ 267,134	$ 227,740
Cost of revenues	(153,550)	(114,916)	(250,103)	(206,559)
Gross profit	15,159	13,582	17,031	21,181
General and administrative expenses	(8,444)	(6,300)	(16,110)	(12,356)
Other operating income (expense), net	1,525	5	2,756	150
Operating income	8,240	7,287	3,677	8,975
Gain (loss) on sale of securities and other	333	(41)	1,083	(245)
Interest income	511	565	927	943
Interest expense	(432)	(374)	(818)	(588)
Income before income taxes and earnings attributable to noncontrolling interests	8,652	7,437	4,869	9,085
Income tax benefit (expense)	(984)	(1,145)	2,992	(1,311)
Net income	7,668	6,292	7,861	7,774
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures	(4,381)	(2,081)	(12,076)	(3,519)
Net income (loss) attributable to Sterling common stockholders	$ 3,287	$ 4,211	$ (4,215)	$ 4,255
Net income (loss) per share attributable to Sterling common stockholders:
Basic (in Shares)	0.15	0.26	(0.29)	0.26
Diluted (in Shares)	0.15	0.25	(0.29)	0.26
Weighted average number of common shares outstanding used in computing per share amounts:
Basic (in Dollars per share)	$ 16,359,597	$ 16,483,691	$ 16,341,037	$ 16,474,074
Diluted (in Dollars per share)	$ 16,444,324	$ 16,594,509	$ 16,341,037	$ 16,604,368

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Note 5 - Derivative Financial Instruments

6 Months Ended

Jun. 30, 2012

Derivative Instruments and Hedging Activities Disclosure [Text Block]

5.   Derivative Financial Instruments

During the quarter ended June 30, 2011, the Company began entering into various fixed rate commodity swap contracts in an effort to manage its exposure to price volatility of diesel fuel.  Historically, fuel prices have been volatile because of supply and demand factors, worldwide political factors and general economic conditions.  The objective of the Company in executing the hedge is to mitigate the fuel price volatility that could adversely affect forecasted cash flows and earnings related to construction contracts.  Swaps are designed so that the Company receives or makes payments based on a differential between fixed and variable prices for off-road ultra-low sulfur diesel (“ULSD”).  The Company has designated its commodity derivative contracts as cash flow hedges designed to achieve more predictable cash flows, as well as to reduce its exposure to price volatility.  While the use of derivative instruments limits the downside risk of adverse price movements, they also limit future benefits from reductions in costs as a result of favorable market price movements.

All of the Company’s outstanding derivative financial instruments are recognized in the balance sheet at their fair values.  All changes in the fair value of outstanding derivatives, except any ineffective portion, are recorded in accumulated other comprehensive income until earnings are impacted by the hedged transaction.  Amounts in accumulated other comprehensive income are reclassified to earnings when the related hedged items affect earnings or the anticipated transactions are no longer probable.  All items included in accumulated other comprehensive income are at the corporate level, and no portion is attributable to noncontrolling interests.

At June 30, 2012, pre-tax accumulated other comprehensive income, net of related taxes of $69,000, consisted of unrecognized losses of $198,000 representing the unrealized change in mark-to-market value of the effective portion of the Company’s commodity contracts, designated as cash flow hedges, as of the balance sheet date.  For the three and six months ended June 30, 2012, the Company recognized pre-tax net realized cash settlement losses on commodity contracts of $41,000 and $44,000, respectively.

At June 30, 2012, the Company had hedged its exposure to the variability in future cash flows from forecasted diesel fuel purchases totaling 620,000 gallons.  The monthly volumes hedged range from 10,000 gallons to 30,000 gallons over the period from July 2012 to December 2014 at fixed prices per gallon ranging from $2.80 to $3.33.

The derivative instruments are recorded on the condensed consolidated balance sheet at fair value and include $30,200 in Other current liabilities for the June 2012 contract which settled in July 2012.  The fair values, excluding the $30,200 settled in 2012, are as follows (in thousands):

Balance Sheet Location	June 30, 2012		December 31, 2011
Derivative assets:
Deposits and other current assets	$	--	$	--
Other assets, net		--		--
	$	--	$	--
Derivative liabilities:
Other current liabilities	$	156	$	147
Other long-term liabilities		42		76
	$	198	$	223

The following table summarizes the effects of commodity derivative instruments on the consolidated statements of operations and comprehensive income for the six months ended June 30, 2012 and 2011 (in thousands):

	June 30,				June 30,
	2012				2011
Increase in fair value of derivatives included in other comprehensive income (effective portion)		$	25			$	--
Realized loss included in cost of revenues (effective portion)			(44	)			--
Increase (decrease) in fair value of derivatives included in cost of revenues (ineffective portion)			--				--

The Company’s derivative instruments contain certain credit-risk-related contingent features which apply both to the Company and to the counterparties.  The counterparty to the Company’s derivative contracts is a high credit quality financial institution.

Fair Value

Derivative financial instruments are carried at fair value as required by applicable GAAP.  Commodity derivative instruments consist of fixed rate commodity swaps to hedge the price risk associated with changes in the price of diesel fuel.  The Company’s swaps are valued based on a discounted future cash flow model.  The primary input for the model is the forecasted prices for ULSD.  The Company’s model is validated by the counterparty’s mark-to-market statements.  The swaps are designated as Level 2 within the valuation hierarchy.  Refer to Note 2 for a description of the inputs used to value the information shown above.

At June 30, 2012 and December 31, 2011, the Company did not have any derivative assets or liabilities measured at fair value on a recurring basis that meet the definition of Level 1 or Level 3.

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Note 4 - Property and Equipment

6 Months Ended

Jun. 30, 2012

Property, Plant and Equipment Disclosure [Text Block]

4.   Property and Equipment

Property and equipment are summarized as follows (in thousands):

	June 30, 2012			December 31, 2011
Construction equipment	$	135,511		$	125,222
Transportation equipment		16,428			17,963
Buildings		7,186			4, 729
Office equipment		1,292			1,077
Construction in progress		1,051			2,544
Land		4,886			3,026
Water rights		200			200
		166,554			154,761
Less accumulated depreciation		(64,151	)		(71,332	)
	$	102,403		$	83,429

Construction in progress at June 30, 2012 consisted primarily of expenditures for a new office in San Antonio, Texas.  In addition to the expenditures for the new office in San Antonio, construction in progress at December 31, 2011 consisted primarily of expenditures for a new office in Dallas, Texas, which was completed during the three months ended March 31, 2012.

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Note 5 - Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Derivative Instruments [Table Text Block]

Balance Sheet Location	June 30, 2012		December 31, 2011
Derivative assets:
Deposits and other current assets	$	--	$	--
Other assets, net		--		--
	$	--	$	--
Derivative liabilities:
Other current liabilities	$	156	$	147
Other long-term liabilities		42		76
	$	198	$	223

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

	June 30,				June 30,
	2012				2011
Increase in fair value of derivatives included in other comprehensive income (effective portion)		$	25			$	--
Realized loss included in cost of revenues (effective portion)			(44	)			--
Increase (decrease) in fair value of derivatives included in cost of revenues (ineffective portion)			--				--

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Accounting Policies, by Policy (Policies)	6 Months Ended
	Jun. 30, 2012
Basis of Presentation and Significant Accounting Policies [Text Block]	Basis of Presentation Sterling Construction Company, Inc. ("Sterling" or "the Company"), a Delaware corporation, is a leading heavy civil construction company that specializes in the building, reconstruction and repair of transportation and water infrastructure in markets in Texas, Utah, Nevada, Arizona, California and other states in which we see opportunities. Our transportation infrastructure projects include highways, roads, bridges and light and commuter rail foundations and structures, and our water infrastructure projects include water, wastewater and storm drainage systems. Sterling provides general contracting services, including excavating, concrete and asphalt paving, installation of large-diameter water and wastewater distribution systems, construction of bridges and similar large structures, construction of light and commuter rail infrastructure, concrete and asphalt batch plant operations, and concrete crushing and aggregate operations primarily to public sector clients. We purchase the necessary materials for our contracts, and perform the majority of the work required by our contracts with our own crews and equipment. For a more detailed discussion of the Company's business, readers of this Report are urged to review "Item 1. Business" of the Annual Report on Form 10-K for the year ended December 31, 2011 ("2011 Form 10-K") and the sections of this Report entitled "Backlog at June 30, 2012" and "Our Markets" under Item 2. The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities, and all significant intercompany accounts and transactions have been eliminated in consolidation. For all periods presented, the Company had no subsidiaries where its ownership interests were less than 50%. Under accounting principles generally accepted in the United States ("GAAP"), the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity.This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring us to consolidate the entity in which we have a non-majority variable interest. On August 1, 2011, we acquired a 50% interest in a limited partnership which the Company determined to be a variable interest entity.Prior to this, the Company had no participation in an entity determined to be a variable interest entity.As discussed further in Note 3 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K, the Company determined that it exercises primary control over activities of Myers & Sons Construction, L.P. ("Myers"), and it is exposed to more than 50% of potential losses from the partnership.Therefore, the Company consolidates Myers in the consolidated financial statements and includes the other partners' interests in the equity and net income of the partnership in the balance sheet line item "Noncontrolling interests" in "Equity" and the statement of operations line item "Noncontrolling owners' interests in earnings of subsidiaries and joint ventures," respectively. Where the Company is a noncontrolling joint venture partner, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the consolidated statements of operations and as a single line item ("Receivables from and equity in construction joint ventures") in the consolidated balance sheets.See Note 6 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information regarding the Company's construction joint ventures, including those where the Company does not have a controlling ownership interest. The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission ("SEC") and should be read in conjunction with the 2011 Form 10-K.Certain information and note disclosures prepared in accordance with GAAP have been either condensed or omitted pursuant to SEC rules and regulations.The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company's financial position at June 30, 2012 and the results of operations and cash flows for the periods presented.The December 31, 2011 condensed consolidated balance sheet data was derived from audited financial statements, but, as discussed above, does not include all disclosures required by GAAP.Interim results may be subject to significant seasonal variations, and the results of operations for the three months and six months ended June 30, 2012 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period.Certain of the Company's accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets, and income taxes.Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual amounts could differ from those estimates
Other Significant Accounting Policies [Policy Text Block]	OtherAccounting Policies The Company's significant accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K.These accounting policies include, but are not limited to, those related to: contracts receivable, including retainage revenue recognition valuation of property and equipment, goodwill and other long-lived assets construction joint ventures income taxes segment reporting There have been no material changes to significant accounting policies since December 31, 2011
Revenue Recognition, Percentage-of-Completion Method [Policy Text Block]	Construction Revenue Recognition The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners. Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract.Our contracts generally take 12 to 36 months to complete. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined. Changes in estimated revenues and gross margin on certain construction contracts during the six months ended June 30, 2012 resulted in a net charge of $4.7 million included in the operating results and a $4.0 million after-tax charge or $0.24 per diluted share attributable to Sterling common stockholders.
Fair Value of Financial Instruments, Policy [Policy Text Block]	Financial Instruments The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties.The Company's financial instruments are cash and cash equivalents, short-term investments, contracts receivable, derivatives, accounts payable, mortgage payable, a credit facility with Comerica Bank ("Credit Facility"), $500,000 of demand notes payable, the put related to certain noncontrolling owners' interests in subsidiaries and an earn-out liability related to the acquisition of J. Banicki Construction, Inc. ("JBC").The recorded values of cash and cash equivalents, short-term investments, contracts receivable and accounts payable approximate their fair values based on their short-term nature.The recorded value of the Credit Facility debt approximates its fair value, as interest approximates market rates.See Note 5 regarding the fair value of derivatives and Note 8 regarding the fair value of the put and the earn-out liability.We had one mortgage outstanding at June 30, 2012 and December 31, 2011 with a remaining balance of $299,000 and $336,000, respectively.The mortgage was accruing interest at 3.50% at both June 30, 2012 and December 31, 2011 and contains pre-payment penalties.At June 30, 2012 and December 31, 2011 the fair value of the mortgage approximated the book value. To determine the fair value of the mortgage, the amount of future cash flows was discounted using the Company's borrowing rate on its Credit Facility.The recorded value of the demand notes payable approximates the fair value as the interest rate approximates market rates and as the notes are due upon demand (i.e., they are short-term in nature).See Note 10 for further information regarding the demand notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (see Note 13 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K)
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements In December 2011, the Financial Accounting Standards Board ("FASB") amended authoritative guidance associated with offsetting assets and liabilities.This amended guidance enhances disclosures by requiring improved information about financial instruments and derivatives instruments that are offset in accordance with current GAAP or subject to an enforceable master netting agreement.The amendment to this authoritative guidance will be placed into effect for the Company on January 1, 2013 and must be applied retrospectively.Except for the additional disclosure requirements, this amendment will have no impact on our consolidated financial statements upon adoption. In May 2011, the FASB amended authoritative guidance associated with fair value measurements.This amended guidance defines certain requirements for measuring fair value and for disclosing information about fair value measurement in accordance with GAAP.The amendments to authoritative guidance associated with fair value measurements were effective for the Company on January 1, 2012 and have been applied prospectively.The adoption of this guidance did not have a material impact on our consolidated financial statements
Reclassification, Policy [Policy Text Block]	Reclassifications Balances related to accrued accounts payable which had been included in "Other current liabilities" in the prior year balance sheet have been reclassified to "Accounts payable" to conform to current year presentation

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Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests

6 Months Ended

Jun. 30, 2012

Noncontrolling Interest Disclosure [Text Block]

8.   Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners’ Interests

In January 2012, RHB, a wholly owned subsidiary, assumed six construction contracts with $25.0 million of unearned revenues from Aggregate Industries―SWR, Inc. (“AI”), an unrelated third party.  In addition, Aggregate South West Holdings, LLC (“ASWH”) and RHB Properties, LLC (“RHBP”), newly formed entities owned by Richard Buenting, the President and Chief Executive Officer of RHB, acquired construction related machinery and equipment and land with quarries from AI.  In addition, AI entered into a two-year non-compete agreement with respect to Utah, Idaho and Montana as well as certain areas of Nevada.  On April 27, 2012, RHB merged with ASWH and acquired RHBP.  In exchange, RHB granted Mr. Buenting a 50% member interest in RHB.  These transactions allowed RHB to expand its operations in Nevada.

The Company also agreed with Mr. Buenting to amend and restate the operating agreement for RHB.  The amended agreement provides that the Company is the Manager of RHB and retains full, exclusive and complete power, authority and discretion to manage, supervise, operate and control RHB; therefore, the Company consolidates RHB with its other subsidiaries.  The Company also entered into a buy/sell and management agreement with Mr. Buenting.  Under this agreement, the Company or Mr. Buenting may annually elect to make an offer to buy the other owner’s 50% interest in RHB or sell their 50% interest in RHB at a price which they specify.  Upon receipt of an offer to buy their interest, the other owner may either accept the offer or elect to buy the other owner’s 50% interest.  Similarly in the instance of an offer to sell, the other owner may either agree to buy the other owner’s 50% interest or require the other owner to buy their 50% interest.  The agreement also provides that the Company will provide RHB with a $5 million line of credit.

The Company has not yet finalized its valuation of the assets acquired, the membership interest granted and the tax related impact of the transaction.  Therefore the purchase price for the transaction is preliminary.  The transaction has been recorded based on a preliminary valuation of the assets acquired of $15.2 million, including $1.2 million associated with machinery and equipment that is held for sale.

Revenues and earnings related to the contracts assumed and the acquired companies from January through June 30, 2012 were $10.3 million and $0.3 million, respectively.  In connection with this transaction, AI did not agree to provide us with historical information related to the earnings from the acquired operations except for information related to the specific contracts being assumed.  Furthermore, we determined that such information was not needed in order to evaluate the transaction based on our knowledge of the assets acquired and the Nevada road and highway construction market.  Therefore, we are not able to present pro forma financial information as if the transactions had occurred on January 1, 2011.

In connection with the August 1, 2011, acquisition of J. Banicki Construction, Inc. (“JBC”) by 80% owned Ralph L. Wadsworth Construction Company, LLC (“RLW”), RLW agreed to additional purchase price payments of up to $5 million to be paid over a five-year period.  The additional purchase price is in the form of an earn-out which is classified as a Level 3 fair value measurement.  In making this valuation,  the unobservable input consisted of forecasted earnings before interest, taxes and depreciation and amortization (“EBITDA”) for the periods after the period being reported on through July 31, 2016.  The additional purchase price is calculated generally as 50% of the amount by which earnings before interest, taxes, depreciation and amortization (“EBITDA”) exceeds $2 million for each of the calendar years 2011 through 2015 and $1.2 million for the seven months ended July 31, 2016.  The yearly excess forecasted EBITDA in our calculation ranged from 39% to 77% of the minimum EBITDA threshold for the years 2012 through 2016.  The discounted present value of the additional purchase price was estimated to be $2.4 million as of August 1, 2011, the acquisition date and $2.2 million as of June 30, 2012.  The undiscounted earn-out liability as of June 30, 2012 is estimated at $2.4 million and could increase by $2.6 if EBITDA during the earn-out period increases $5.2 million or more and could decrease by the full amount of the liability if EBITDA does not exceed the minimum threshold in any of the periods during the earn-out period.  Any significant increase or decrease in actual EBITDA compared to the forecasted amounts would result in a significantly higher or lower fair value measurement of the additional purchase price.  This liability is included in other long-term liabilities in the accompanying condensed consolidated balance sheets.

On August 1, 2011, the Company purchased a 50% interest in Myers & Sons Construction, L.P. (“Myers”).  Myers is a construction limited partnership located in California and was acquired in order to expand the geographic scope of the Company’s operations into California.

See Note 10 regarding the determination that Myers is a variable interest entity and the resulting impact on the consolidated financial statements.

The following table shows the amounts of JBC’s and Myers’ revenue and earnings included in the Company’s condensed consolidated statements of operations and cash flows for the six months ended June 30, 2012 as well as the revenue and earnings of the combined entity for the six months ended June 30, 2011 had the acquisition dates been January 1, 2011 (in thousands):

	Revenue		Net Income Attributable to Sterling Common Stockholders
JBC actual from January 1, 2012 to June 30, 2012	$	20,176	$	888
Myers actual from January 1, 2012 to June 30, 2012		23,570		192
Supplemental pro forma results of the Company, JBC, and Myers on a combined basis for 1/1/2011 – 6/30/2011 (unaudited)		237,304		4,184

In connection with the December 3, 2009 acquisition of RLW, the noncontrolling interest owners of RLW, who are related and also its executive management, have the right to require the Company to buy their remaining 20.0% interest in RLW in 2013, and concurrently, the Company has the right to require those owners to sell their 20.0% interest to the Company by July 2013 (the “RLW Put/Call”). The purchase price in each case is 20% of the product of the simple average of RLW’s EBITDA (income before interest, taxes, depreciation and amortization) for the calendar years 2010, 2011 and 2012 times a multiple of a minimum of 4 and a maximum of 4.5.  The valuation of this purchase price is classified as a Level 3 fair value measurement.  In making this valuation, the observable input is RLW’s EBITDA for the period from January 1, 2010 through June 30, 2012 while the unobservable input is the forecasted EBITDA for the period from July 1, 2012 through December 31, 2012.  The noncontrolling owners’ interests, including the obligation under the RLW Put/Call, were recorded at their estimated fair value at the date of acquisition as “Obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the accompanying consolidated balance sheet. Any significant increase or decrease in actual EBITDA compared to the forecasted amount would result in a significantly higher or lower fair value measurement of the purchase price.  A $1 million increase (decrease) in RLW’s EBITDA for the six months ended December 31, 2012 from that used in the forecast would result in a $0.3 million increase (decrease) in the RLW Put/Call liability.

Annual interest is accreted for the RLW Put/Call obligation based on the Company’s borrowing rate under its Credit Facility plus two percent. Such accretion amounted to $497,000 and $424,000 for the six months ended June 30, 2012 and 2011 and is recorded in “Interest expense” in the accompanying condensed consolidated statement of operations.  In addition, based on the estimated average of RLW’s EBITDA for the calendar years 2010, 2011 and 2012 and the expected multiple, the estimated fair value of the RLW Put/Call was increased by $1,195,000 during the three months ended June 30, 2012, and this change, net of tax of $378,000, has been reported as a charge to retained earnings.

Since the Company may be required to settle the obligation associated with the RLW Put/Call as well as any undistributed earnings to the noncontrolling interest owners within the next year, $21,800,000 is included in current liabilities under “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the accompanying condensed consolidated balance sheets.

On October 31, 2007, the Company purchased a 91.67% interest in RHB.  The noncontrolling interest owner of RHB had the right to put, or require the Company to buy, his remaining 8.33% interest in the subsidiary and, concurrently, the Company had the right to require that the owner sell his 8.33% interest to the Company, in 2011.  On March 17, 2011, the right to put/call the RHB noncontrolling interest was extended to anytime between that date and December 31, 2012.  In addition the price was increased from $7.1 million to $8.2 million which settled $1.1 million of accrued amounts due to the noncontrolling interest owner under the October 31, 2007 purchase agreement.  In September 2011, the noncontrolling owner exercised his right to put his remaining interest of 8.33% in RHB to the Company for $8.2 million.  This transaction was completed in December 2011 under the terms of the agreement.

See Note 2 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information regarding the acquisitions discussed above.

Changes in Obligation for Noncontrolling Interests

The following table summarizes the changes in the obligation for noncontrolling owners' interests in subsidiaries and joint ventures (in thousands):

	Six Months Ended June 30,
	2012			2011
Balance, beginning of period	$	16,848		$	28,724
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures		11,780			3,519
Accretion of interest on RLW Put/Call		497			424
Change in fair value of RLW Put/Call		733			--
Change in fair value of RHB put/call		--			1,054
Issuance of noncontrolling interest in RHB in exchange for net assets of acquired companies		15,196			--
Distributions to noncontrolling interest owners		(4,885	)		(4,818	)
Balance, end of period	$	40,169		$	28,903

“Noncontrolling owners’ interest in earnings of subsidiaries and joint ventures” for the six months ended June 30, 2012 shown in the accompanying condensed consolidated statement of operations of $12,076,000 includes $10,576,000 attributable to the RLW noncontrolling interest owners which is reflected in “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures,” $1,204,000 is attributable to RHB noncontrolling interest owners which is reflected in “Obligation for noncontrolling owners’ interest in subsidiaries and joint ventures” and income of $296,000 attributable to other noncontrolling interest owners which is reflected in equity in “Noncontrolling interests” in the accompanying condensed consolidated balance sheet.

Subsequent to the issuance of the financial statements for December 31, 2011, the members of RLW, including the Company, agreed to amend RLW’s operating agreement effective January 1, 2012 to provide that any goodwill impairment, including the 2011 fourth quarter goodwill impairment of the Company described in Note 8 of the Notes to Consolidated Financial Statements included in the 2011 From 10-K, is not to be allocated to RLW for the purpose of calculating the distributions to be made to the RLW noncontrolling interest holders. This amendment resulted in an increase in the net income attributable to RLW’s noncontrolling interests of $6,717,000 during the six months ended June 30, 2012.  This increase is included in “Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures” in the accompanying condensed consolidated statement of operations with an increase in the “Current obligation for noncontrolling owners’ interests in subsidiaries and joint ventures” in the condensed consolidated balance sheet.  This increase has a related tax impact of $2,351,000 which increased the tax benefit for the period.

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Note 6 - Income Taxes

6 Months Ended

Jun. 30, 2012

Income Tax Disclosure [Text Block]

6.   Income Taxes

The Company and its subsidiaries file U.S. federal and various state income tax returns. The Company’s 2007 through 2009 U.S. federal income tax returns are currently being examined by the I.R.S.; however, management expects there will be no material adjustments, interest or penalties from such examination.  The Company’s policy is to recognize interest related to any underpayment of taxes as interest expense, and any penalties as administrative expenses.

The income tax expense (benefit) in the accompanying condensed consolidated financial statements consists of the following (in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Current tax expense (benefit)	$	1,169		$	748	$	144		$	(354	)
Deferred tax expense (benefit)		(185	)		397		(3,136	)		1,665
Total tax expense (benefit)	$	984		$	1,145	$	(2,992	)	$	1,311

Current income tax expense (benefit) represents federal and state taxes based on income (loss) or a component thereof expected to be included in the tax returns for the years shown.  The deferred tax benefit in the six months ended June 30, 2012 reflects, among other temporary timing differences, the tax impact of $2,351,000 related to the $6,717,000 increase in the net income attributable to RLW’s noncontrolling interests for the amendment discussed in Note 8.  The deferred income tax expense (benefit), based on temporary timing differences, is expected to be payable in future years.

The income tax expense (benefit) for the six months ended June 30, 2012 and 2011 differ from the amounts using the statutory federal income tax rate of 35% of income before taxes and earnings attributable to noncontrolling interests for the following reasons (in thousands, except for percentages):

	2012						2011
	Amount			%			Amount			%
Tax expense at the federal statutory rate	$	1,698			35.0	%	$	3,180			35.0	%
State income tax expense (benefit), net of federal benefit		9			0.2			(444	)		(4.9	)
Taxes on subsidiaries' and joint ventures’ earnings attributable to noncontrolling ownership interests, which are liabilities of such owners		(4,213	)		(86.8	)		(1,232	)		(13.6	)
Interest income not subject to federal tax		(235	)		(4.8	)		(210	)		(2.3	)
Other permanent differences		(251	)		(5.3	)		17			0.2
Income tax expense	$	(2,992	)		(61.7	)%	$	1,311			14.4	%

As a result of the Company’s analysis, management has determined that the Company does not have any material uncertain tax positions.

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Note 7 - Contingencies Related to Litigation

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies Disclosure [Text Block]

7.   Contingencies Related to Litigation

In January 2010, a jury trial was held to resolve a dispute between Road and Highway Builders, LLC (“RHB”) and a subcontractor.  The jury rendered a verdict of $1.0 million against RHB, exclusive of interest, court costs and attorney’s fees. While the Company has recorded this verdict as an expense in 2009, the Company has appealed this judgment as it believes that as a matter of law, the jury erred in its decision.  The Company has posted a bond of $1.3 million to cover the judgment and estimated court costs and attorney’s fees pending the results of the appeal.  The appeal was heard by the Nevada Supreme Court on November 3, 2011, and the Company is awaiting the court’s decision.

The Company is the subject of certain other claims and lawsuits occurring in the normal course of business. Management, after consultation with legal counsel, does not believe that the outcome of these other actions will have a material impact on the financial statements of the Company.

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Note 9 - Stockholders' Equity

6 Months Ended

Jun. 30, 2012

Stockholders' Equity Note Disclosure [Text Block]

9.   Stockholders’ Equity

Stock-Based Compensation Plan and Warrants

The Company has a stock-based incentive plan which is administered by the Compensation Committee of the Board of Directors.  See Note 14 of the Notes to Consolidated Financial Statements included in the 2011 Form 10-K for further information.  We recorded stock-based compensation expense of $133,000 and $133,000 for the three months ended June 30, 2012 and 2011, respectively, and $263,000 and $258,000 for the six months ended June, 30, 2012 and 2011, respectively.

At June 30, 2012, total unrecognized compensation expense related to restricted stock awards was $781,000.  This cost is expected to be recognized over a weighted average period of 2.3 years.  There was no unrecognized compensation expense related to stock options at June 30, 2012.  Proceeds received by the Company from the exercise of options and warrants for the six months ended June 30, 2012 and 2011 were approximately $56,000 and $122,000, respectively.  No options were granted in the six months ended June 30, 2012 or 2011.

At June 30, 2012, there were 121,184 and 31,000 shares of common stock covered by outstanding restricted stock and stock options, respectively.  All of the stock options were vested while the restricted stock has not vested.

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Note 5 - Derivative Financial Instruments (Detail) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 gal
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent		$ 69,000
Unrealized Gain on Price Risk Cash Flow Derivatives, before Tax		198,000
Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	41,000	44,000
Derivative, Nonmonetary Notional Amount, Gallons (in US Gallons)		620,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value	30,200	30,200
Derivative Liability, Fair Value, Net	$ 30,200	$ 30,200
Minimum [Member]
Derivative, Nonmonetary, Number of Gallons Range (in US Gallons)		10,000
Derivative, Nonmonetary Notional Amount, Price Per Gallon (in Dollars per US Gallons)	2.80	2.80
Maximum [Member]
Derivative, Nonmonetary, Number of Gallons Range (in US Gallons)		30,000
Derivative, Nonmonetary Notional Amount, Price Per Gallon (in Dollars per US Gallons)	3.33	3.33

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Note 3 - Construction Joint Ventures (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Condensed Balance Sheet [Table Text Block]

	June 30, 2012			December 31, 2011
Total combined:
Current assets	$	6,364		$	108,458
Less current liabilities		(3,517	)		(86,023	)
Net assets	$	2,847		$	22,435
Backlog	$	435,385		$	539,844
Sterling’s noncontrolling interest in backlog	$	121,877		$	127,130
Sterling’s receivables from and equity in construction joint ventures	$	6,889		$	6,057

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Total combined:
Revenues	$	215,210	$	113,550	$	305,584	$	200,236
Income before tax		20,299		9,478		28,861		16,405
Sterling’s proportionate share:
Revenues	$	37,885	$	14,189	$	53,801	$	25,030
Income before tax		3,337		1,184		4,750		2,012

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Note 10 - Variable Interest Entities (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Variable Interest Entities [Table Text Block]

	June 30, 2012		December 31, 2011
Assets:
Current assets:
Cash and cash equivalents	$	3,155	$	1,365
Contracts receivable, including retainage		12,133		2,244
Other current assets		135		419
Total current assets		15,423		4,028
Property and equipment, net		2,713		926
Goodwill		1,501		1,541
Total assets	$	19,637	$	6,495
Liabilities:
Current liabilities:
Accounts payable	$	12,010	$	1,134
Other current liabilities		4,061		2,323
Total current liabilities		16,071		3,457
Long-term liabilities:
Other long-term liabilities		--		--
Total long-term liabilities		--		--
Total liabilities	$	16,071	$	3,457

Schedule of Variable Interest Entity Income [Table Text Block]

	Three Months Ended June 30, 2012		Six Months Ended June 30, 2012
Revenues	$	19,056	$	23,570
Operating income		633		602
Net income attributable to Sterling common stockholders		204		192

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Note 11 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders (Detail) - Basic net income (loss) per share attributable to Sterling common stockholders: (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Numerator:
Net income (loss) attributable to Sterling common stockholders (in Dollars)	$ 3,287	$ 4,211	$ (4,215)	$ 4,255
Revaluation of the RLW noncontrolling interest put/call liability reflected in retained earnings, net of tax (in Dollars)			(516)
(in Dollars)			(12,076)	(3,519)
Denominator:
Weighted average common shares outstanding — basic	0.15	0.26	(0.29)	0.26
Weighted average common shares outstanding and assumed conversions— diluted	0.15	0.25	(0.29)	0.26
Basic net income (loss) per share attributable to Sterling common stockholders (in Dollars per share)	$ 16,359,597	$ 16,483,691	$ 16,341,037	$ 16,474,074
Diluted net income (loss) per share attributable to Sterling common stockholders (in Dollars per share)	$ 16,444,324	$ 16,594,509	$ 16,341,037	$ 16,604,368
Sterling Construction [Member]
Numerator:
Net income (loss) attributable to Sterling common stockholders (in Dollars)	3,287	4,211	(4,215)	4,255
Revaluation of the RLW noncontrolling interest put/call liability reflected in retained earnings, net of tax (in Dollars)	(777)		(476)
(in Dollars)	$ 2,510	$ 4,211	$ (4,691)	$ 4,255
Denominator:
Weighted average common shares outstanding — basic	16,360,000	16,484,000	16,341,000	16,474,000
Shares for dilutive stock options and warrants	84,000	111,000		130,000
Weighted average common shares outstanding and assumed conversions— diluted	16,444,000	16,595,000	16,341,000	16,604,000
Basic net income (loss) per share attributable to Sterling common stockholders (in Dollars per share)	$ 150	$ 260	$ (290)	$ 260
Diluted net income (loss) per share attributable to Sterling common stockholders (in Dollars per share)	$ 150	$ 250	$ (290)	$ 260

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Note 8 - Acquisitions and Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Detail) (USD $)	1 Months Ended	5 Months Ended	6 Months Ended		7 Months Ended	18 Months Ended	60 Months Ended						5 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended	18 Months Ended		3 Months Ended	6 Months Ended
	Aug. 31, 2011	Dec. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jul. 31, 2016	Jun. 30, 2012	Dec. 31, 2015	Jun. 30, 2016	Jan. 31, 2012	Sep. 30, 2011	Oct. 31, 2007	Oct. 31, 2007 RHB [Member]	Dec. 31, 2011 Myers & Sons Construction L.P. [Member]	Jun. 30, 2012 Minimum [Member]	Dec. 31, 2012 Minimum [Member]	Jun. 30, 2012 Maximum [Member]	Dec. 31, 2012 Maximum [Member]	Jun. 30, 2012 Aggregate Industries-SWR [Member]	Jun. 30, 2012 RHB [Member]	Apr. 27, 2012 RHB [Member]	Jun. 30, 2012 RLW [Member]	Dec. 31, 2012 RLW [Member]	Jun. 30, 2012 RLW [Member]	Jun. 30, 2012 Other Noncontrolling Interest Owners [Member]
Noncontrolling Interest, Description																		six
Deferred Revenue									$ 25,000,000
Noncontrolling Interest, Ownership Percentage by Parent																				50.00%
Noncontrolling Interests Offer To Buy Percentage																			50.00%
Noncontrolling Interests Offer To Sell Percentage																			50.00%
Non Controlling Interests Offer To Buy, Counter Offer Percentage																			50.00%
Noncontrolling Interests Require To Buy, Percentage																			50.00%
Noncontrolling Interests Require To Sell, Percentage																			50.00%
Long-term Line of Credit																			5,000,000
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value			15,200,000			15,200,000
Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment			1,200,000			1,200,000
Revenues From Contracts Assumed and Acquired						10,300,000
Earnings From Contracts Assumed and Acquired						300,000
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage	80.00%	50.00%											50.00%
Business Acquisition Additional Price Payments	5,000,000		2,200,000
Business Acquisition Additional Price Payments Term	5 years
Business Acquisition Earn-Out Percentage	50.00%
Business Acquisition Earn-Out Calculated Floor					1,200,000		2,000,000
Forcasted EBITDA Percentage			0.39			0.39		0.77
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	2,400,000
Business Acquisition Undiscounted Earn-Out Liability			2,400,000			2,400,000
Business Acquisition Undiscounted Earn-Out Liability Increase			2.6			2.6
EBITDA Earn-Out Increase Floor			5,200,000			5,200,000
Business Acquisition Purchase Price Multiplier														4		4.5
EBITDA Increase (Decrease)																						1,000,000
Increase (Decrease) in Put/Call Liability																					1,195,000	300,000
Interest Expense, Other			497,000	424,000
Other Tax Expense (Benefit)																					378,000
			21,800,000			21,800,000													1,204,000		10,576,000		10,576,000	296,000
Equity Method Investment, Ownership Percentage												91.67%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners										8.20%	8.33%
Business Acquisition Purchase Price Increase															7,100,000		8,200,000
Business Acquisition Net Accrued Amount To Noncontrolling Interest											1,100,000
Noncontrolling Owners' Interest In Earnings of Subsidiaries and Joint Ventures			12,076,000
Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest																							6,717,000
Increase (Decrease) in Income Taxes																							$ 2,351,000

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Condensed Consolidated Statements of Comprehensive Income - (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Net income (loss) attributable to Sterling common stockholders	$ (4,215)	$ 4,255
Net income attributable to noncontrolling interest included in equity	296
Net income attributable to noncontrolling interest included in liabilities	11,780	3,519
Add /(deduct) other comprehensive income, net of tax:
Realized (gain) loss from available-for-sale securities	(326)	143
Change in unrealized holding gain (loss) on available-for-sale securities	312	122
Realized loss from settlement of derivatives	29	8
Change in the effective portion of unrealized gain (loss) in fair market value of derivatives	(13)	(133)
Comprehensive income	$ 7,863	$ 7,914

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Note 3 - Construction Joint Ventures

6 Months Ended

Jun. 30, 2012

Equity Method Investments and Joint Ventures Disclosure [Text Block]

3.   Construction Joint Ventures

We participate in various construction joint ventures.  Generally, each construction joint venture is formed to accomplish a specific project and is jointly controlled by the joint venture partners.  See Note 6 of the Notes to Consolidated Financial Statements in the 2011 Form 10-K for further information.  Condensed combined financial amounts of joint ventures in which the Company has a noncontrolling interest and the Company’s share of such amounts which are included in the Company’s condensed consolidated financial statements are shown below (in thousands):

	June 30, 2012			December 31, 2011
Total combined:
Current assets	$	6,364		$	108,458
Less current liabilities		(3,517	)		(86,023	)
Net assets	$	2,847		$	22,435
Backlog	$	435,385		$	539,844
Sterling’s noncontrolling interest in backlog	$	121,877		$	127,130
Sterling’s receivables from and equity in construction joint ventures	$	6,889		$	6,057

	Three Months Ended June 30,				Six Months Ended June 30,
	2012		2011		2012		2011
Total combined:
Revenues	$	215,210	$	113,550	$	305,584	$	200,236
Income before tax		20,299		9,478		28,861		16,405
Sterling’s proportionate share:
Revenues	$	37,885	$	14,189	$	53,801	$	25,030
Income before tax		3,337		1,184		4,750		2,012

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Note 11 - Net Income (Loss) per Share Attributable to Sterling Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]

	Three Months Ended June 30,					Six Months Ended June 30,
	2012			2011		2012			2011
Numerator:
Net income (loss) attributable to Sterling common stockholders	$	3,287		$	4,211	$	(4,215	)	$	4,255
Revaluation of the RLW noncontrolling interest put/call liability reflected in retained earnings, net of tax		(777	)		--		(476	)		--
	$	2,510		$	4,211	$	(4,691	)	$	4,255
Denominator:
Weighted average common shares outstanding — basic		16,360			16,484		16,341			16,474
Shares for dilutive stock options and warrants		84			111		--			130
Weighted average common shares outstanding and assumed conversions— diluted		16,444			16,595		16,341			16,604
Basic net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.26	$	(0.29	)	$	0.26
Diluted net income (loss) per share attributable to Sterling common stockholders	$	0.15		$	0.25	$	(0.29	)	$	0.26

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Note 6 - Income Taxes (Detail) - The income tax expense in the accompanying condensed consolidated financial statements consists of the following: (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Current tax expense (benefit)	$ 1,169	$ 748	$ 144	$ (354)
Deferred tax expense (benefit)	(185)	397	(3,136)	1,665
Total tax expense (benefit)	$ 984	$ 1,145	$ (2,992)	$ 1,311

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Note 2 - Cash and Cash Equivalents and Short-term Investments (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block]

	June 30, 2012
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	29,012	$	29,012	$	--	$	258	$	12
Municipal bonds		20,664		--		20,664		765		46
Total securities available-for-sale	$	49,676	$	29,012	$	20,664	$	1,023	$	58

	December 31, 2011
	Total Fair Value		Level 1		Level 2		Gross Unrealized Gains (pre-tax)		Gross Unrealized Losses (pre-tax)
Mutual funds	$	24,851	$	24,851	$	--	$	383	$	--
Municipal bonds		20,004		--		20,004		617		15
Total securities available-for-sale	$	44,855	$	24,851	$	20,004	$	1,000	$	15