10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended June 30, 2021

☐ 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: 001-34530

U.S. CONCRETE, INC.

(Exact name of registrant as specified in its charter)

Delaware	76-0586680
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)

Address of principal executive offices, including zip code: 331 N. Main Street, Euless, Texas 76039

Registrant’s telephone number, including area code: (817) 835-4105

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading symbol	Name of each exchange on which registered
Common Stock, par value $0.001	USCR	The Nasdaq Stock Market LLC

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 every Interactive Data File required to be submitted 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 such files).  Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☑ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☑

There were 17,140,096 shares of common stock, par value $0.001 per share, of the registrant outstanding as of July 26, 2021.

INDEX

		Page No.
Part I – Financial Information
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Operations	2
	Condensed Consolidated Statements of Cash Flows	3
	Condensed Consolidated Statements of Total Equity	5
	Notes to Condensed Consolidated Financial Statements	6
	1. Basis of Presentation	6
	2. Acquisitions and Business Combinations	6
	3. Allowance for Doubtful Accounts and Customer Disputes	8
	4. Inventories	9
	5. Debt	9
	6. Stock-based Compensation	11
	7. Income Taxes	12
	8. Earnings (Loss) Per Share	12
	9. Commitments and Contingencies	12
	10. Segment Information	15
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4.	Controls and Procedures	29
Part II – Other Information
Item 1.	Legal Proceedings	30
Item 1A.	Risk Factors	30
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	32
Item 4.	Mine Safety Disclosures	32
Item 6.	Exhibits	33
Signature		34

i

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

U.S. CONCRETE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in millions)

	June 30, 2021		December 31, 2020
ASSETS	(Unaudited)
Current assets:
Cash and cash equivalents	$	20.9	$	11.1
Trade accounts receivable, net	193.5		212.5
Inventories	76.5		70.3
Other receivables, net	25.8		13.2
Prepaid expenses and other	9.1		11.1
Total current assets	325.8		318.2
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $395.3 as of June 30, 2021 and $360.2 as of December 31, 2020	806.8		788.2
Operating lease assets	73.2		76.1
Goodwill	238.0		238.2
Intangible assets, net of accumulated amortization of $102.1 as of June 30, 2021 and $97.5 as of December 31, 2020	60.0		70.9
Other assets	19.8		14.7
Total assets	$	1,523.6	$	1,506.3
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	94.3	$	127.8
Accrued liabilities	75.6		86.1
Current maturities of long-term debt	40.8		33.7
Current operating lease liabilities	14.7		14.3
Total current liabilities	225.4		261.9
Long-term debt, net of current maturities	748.3		668.7
Long-term operating lease liabilities	62.5		65.5
Other long-term obligations and deferred credits	46.4		51.9
Deferred income taxes	61.3		56.6
Total liabilities	1,143.9		1,104.6
Commitments and contingencies (Note 9)
Equity:
Additional paid-in capital	381.4		363.8
Retained earnings	28.2		53.3
Treasury stock, at cost	(52.2)		(37.9)
Total shareholders' equity	357.4		379.2
Non-controlling interest	22.3		22.5
Total equity	379.7		401.7
Total liabilities and equity	$	1,523.6	$	1,506.3

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

1

U.S. CONCRETE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in millions except per share amounts)

(Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue	$	327.4	$	322.7	$	613.1	$	657.1
Cost of goods sold excluding depreciation, depletion and amortization	259.4		250.1		492.5		524.0
Selling, general and administrative expenses	48.3		31.7		77.6		65.4
Depreciation, depletion and amortization	25.7		25.2		50.1		48.6
Change in value of contingent consideration	—		(5.8)		(0.1)		(5.5)
Gain on sale/disposal of assets and business, net	(0.1)		(0.1)		(1.6)		(0.1)
Operating income (loss)	(5.9)		21.6		(5.4)		24.7
Interest expense, net	10.3		11.4		20.7		22.8
Loss on extinguishment of debt	5.5		—		5.5		—
Other income, net	(0.5)		(0.6)		(0.9)		(1.2)
Income (loss) before income taxes	(21.2)		10.8		(30.7)		3.1
Income tax expense (benefit)	(0.7)		4.3		(5.4)		(0.6)
Net income (loss)	(20.5)		6.5		(25.3)		3.7
Amounts attributable to non-controlling interest	(0.2)		(0.1)		(0.2)		0.2
Net income (loss) attributable to U.S. Concrete	$	(20.3)	$	6.6	$	(25.1)	$	3.5
Earnings (loss) per share attributable to U.S. Concrete:
Basic and diluted	$	(1.19)	$	0.39	$	(1.49)	$	0.21
Weighted average shares outstanding:
Basic and diluted	17.0		16.6		16.9		16.6

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

2

U.S. CONCRETE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in millions)

(Unaudited)

	Six Months Ended June 30,
	2021		2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$	(25.3)	$	3.7
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	50.1		48.6
Loss on extinguishment of debt	5.5		—
Amortization of debt issuance costs	1.0		1.0
Change in value of contingent consideration	(0.1)		(5.5)
Gain on sale/disposal of assets and business, net	(1.6)		(0.1)
Deferred income taxes	5.8		2.6
Provision for doubtful accounts and customer disputes	1.0		1.0
Stock-based compensation	17.6		6.2
Other, net	1.0		(0.8)
Changes in assets and liabilities, excluding effects of acquisitions:
Accounts receivable	18.0		24.9
Inventories	(13.1)		1.7
Prepaid expenses and other current assets	(10.7)		(3.0)
Other assets and liabilities	(4.4)		2.7
Accounts payable and accrued liabilities	(40.4)		1.1
Net cash provided by operating activities	4.4		84.1
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(46.0)		(14.2)
Proceeds from sale of business and property, plant and equipment	3.0		0.3
Payments for acquisition of businesses	(0.2)		(140.2)
Net cash used in investing activities	(43.2)		(154.1)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings	274.4		260.8
Repayments of revolver borrowings	(277.4)		(204.3)
Proceeds from issuance of term loans	296.2		—
Repayment of senior unsecured notes	(200.0)		—
Premium paid on early retirement of debt	(3.2)		—
Payments for acquisition-related liabilities	(8.2)		(9.9)
Payments for finance leases, promissory notes and other	(17.6)		(10.8)
Shares redeemed for employee income tax obligations	(14.3)		(1.2)
Proceeds from finance leases and other	—		14.5
Debt issuance costs	(1.2)		(2.2)
Net cash provided by financing activities	48.7		46.9
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	(0.1)		—
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	9.8		(23.1)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	11.1		40.6
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	20.9	$	17.5

3

U.S. CONCRETE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

(in millions)

(Unaudited)

	Six Months Ended June 30,
	2021		2020
Supplemental Disclosure of Cash Flow Information:
Net cash paid for interest	$	18.2	$	22.6
Net cash paid for (refund from) income taxes	$	1.8	$	(0.1)
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Capital expenditures funded by finance leases and promissory notes	$	11.6	$	13.7
Net right-of-use assets obtained in exchange for operating lease liabilities	$	4.5	$	7.4
Acquisitions funded by deferred consideration	$	—	$	1.7
Transfer of non-controlling interest	$	—	$	3.3

Approximately $0.6 million of accounts payable owed by the Company was effectively settled as part of the Coram Acquisition, as defined in Note 2 to these condensed consolidated financial statements.

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

4

U.S. CONCRETE, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF TOTAL EQUITY

(in millions)

(Unaudited)

	# of Common Shares	Additional Paid-In Capital		Retained Earnings		Treasury Stock		Total Shareholders' Equity		Non-controlling Interest		Total Equity
December 31, 2019	16.7	$	348.9	$	31.1	$	(36.6)	$	343.4	$	26.2	$	369.6
Cumulative-effect adjustment upon adoption of ASC 326, net of taxes	—	—		(3.3)		—		(3.3)		—		(3.3)
Transfer of non-controlling interest	—	3.3		—		—		3.3		(3.3)		—
Stock-based compensation	—	3.7		—		(1.1)		2.6		—		2.6
Net income (loss)	—	—		(3.1)		—		(3.1)		0.3		(2.8)
March 31, 2020	16.7	355.9		24.7		(37.7)		342.9		23.2		366.1
Stock-based compensation	—	2.5		—		(0.2)		2.3		—		2.3
Net income	—	—		6.6		—		6.6		(0.1)		6.5
June 30, 2020	16.7	$	358.4	$	31.3	$	(37.9)	$	351.8	$	23.1	$	374.9
December 31, 2020	16.7	$	363.8	$	53.3	$	(37.9)	$	379.2	$	22.5	$	401.7
Stock-based compensation	0.3	2.9		—		(9.7)		(6.8)		—		(6.8)
Net income (loss)	—	—		(4.8)		—		(4.8)		—		(4.8)
March 31, 2021	17.0	366.7		48.5		(47.6)		367.6		22.5		390.1
Stock-based compensation	0.1	14.7		—		(4.6)		10.1		—		10.1
Net income (loss)	—	—		(20.3)		—		(20.3)		(0.2)		(20.5)
June 30, 2021	17.1	$	381.4	$	28.2	$	(52.2)	$	357.4	$	22.3	$	379.7

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

5

U.S. CONCRETE, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1.BASIS OF PRESENTATION AND ACCOUNTING POLICIES

These unaudited condensed consolidated financial statements include the accounts of U.S. Concrete, Inc. and its subsidiaries (collectively, “we,” “us,” “our,” the “Company,” or “U.S. Concrete”) and were prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial statements. While these unaudited condensed consolidated financial statements reflect all normal recurring adjustments that are, in the opinion of management, necessary for fair presentation of the results of the interim period, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. Our unaudited condensed consolidated financial statements reflect estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues and expenses. Such estimates and assumptions affect, among other things, our goodwill and long-lived asset valuations; inventory valuation; assessment of the effective tax rate; valuation of deferred income taxes; valuation of liabilities for workers' compensation, automobile, and general liability; allowance for doubtful accounts; and measurement of cash bonus plans. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 10-K”).

We use the same accounting policies in preparing quarterly and annual financial statements. Certain reclassifications have been made to prior year amounts to conform with the current year presentation. Unless otherwise noted, all amounts are presented in U.S. dollars. Certain computations may be impacted by the effect of rounding in this report. Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year primarily due to the impact of the coronavirus (“COVID-19”) pandemic, weather patterns and general economic conditions in our markets.

2.    ACQUISITIONS AND BUSINESS COMBINATIONS

Rail Terminal and Bulk Storage Facility

On April 20, 2021, we purchased a rail terminal and bulk storage facility for cementitious materials in Stockton, California for $8.2 million that is currently leased to and operated by a third party. We made this investment to increase the control and stability over our raw material supply chain to support our West Region's ready-mixed concrete business. We accounted for this purchase as an asset acquisition and recorded the assets in property, plant and equipment on our condensed consolidated balance sheets.

Property Royalty Agreement

On March 12, 2021, we acquired property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for $28.7 million (the “Orca Acquisition”). The Orca Acquisition had the effect of eliminating future royalty payments, which had previously been recognized in cost of goods sold excluding depreciation, depletion and amortization in our condensed consolidated statements of operations. We accounted for the Orca Acquisition as an asset acquisition and recorded the assets in property, plant and equipment on our condensed consolidated balance sheets.

Sugar City Building Materials Co.

On November 7, 2020, we acquired certain assets of Sugar City Building Materials Co. (the “Sugar City Acquisition”), which expanded our ready-mixed concrete operations in our West Region, for total cash consideration of $7.8 million. We accounted for the Sugar City Acquisition as a business combination. The assets acquired primarily included inventory and property, plant and equipment. The Sugar City Acquisition resulted in $2.1 million of goodwill, which is amortizable for tax purposes and has been allocated to our ready-mixed concrete segment because we expect to receive synergies in that segment. No pro forma information has been disclosed in these financial statements, as the operations of Sugar City Building Materials Co. for the period were not material to our revenue, net income or earnings per share.

6

Coram Materials Corp.

On February 24, 2020, we acquired the equity of Coram Materials Corp. and certain of its affiliates (collectively, “Coram Materials”). Coram Materials is a sand and gravel products provider located on Long Island in New York. This acquisition increased the vertical integration of our New York City operations.

The acquisition of the equity of Coram Materials (the “Coram Acquisition”) was accounted for as a business combination. We funded the initial cash purchase consideration with cash and borrowings under our Revolving Facility (as defined in Note 5). The combined assets acquired through the Coram Acquisition included an aggregates facility with 330 acres of land, including 180 mining acres containing approximately 41.9 million tons of in-place, proven and permitted aggregate reserves and approximately 7.5 million tons of in-place, proven, but unpermitted aggregate reserves. To effect this transaction, we incurred $0.6 million of transaction costs, which were included in selling and general administrative expenses in our condensed consolidated statements of operations for the six months ended June 30, 2020.

The total consideration for the Coram Acquisition and the amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the acquisition date were as follows:

($ in millions)	Coram Materials
Accounts receivable(1)	$	2.0
Inventory	10.0
Other current assets	0.3
Property, plant and equipment	130.9
Total assets acquired	143.2
Current liabilities	0.1
Other long-term liabilities	0.2
Total liabilities assumed	0.3
Total consideration (fair value)(2)	$	142.9

(1)     The aggregate fair value of the acquired accounts receivable approximated the aggregate gross contractual amount.

(2)     Consisted of a $140.2 million initial cash payment, a $1.7 million initial present value of deferred consideration, and a $1.6 million working capital adjustment paid in August 2020, less a $0.6 million settlement of accounts payable owed by the Company to Coram Materials at the acquisition date. The total amount of deferred consideration was $2.0 million, of which $1.0 million was paid in the six months ended June 30, 2021 and the remainder is due in February 2022.

Impact of Coram Acquisition

During the three months ended June 30, 2020, the Coram Materials business generated revenue of $7.0 million, including intersegment sales of $2.7 million, and generated operating income of $1.3 million. During the period from the acquisition date to June 30, 2020, the Coram Materials business generated revenue of $9.6 million, including intersegment sales of $3.7 million, and generated operating income of $1.1 million. The results of this acquired business are included in our aggregate products segment.

The pro forma consolidated financial results shown below represent our estimate of the Company's results of operations as if the Coram Acquisition had been completed on January 1, 2020.

($ in millions except per share)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Revenue	$	322.7	$	659.2
Net income attributable to U.S. Concrete	$	9.3	$	7.7
Earnings per share attributable to U.S. Concrete - basic	$	0.56	$	0.46
Earnings per share attributable to U.S. Concrete - diluted	$	0.56	$	0.46

7

The above pro forma results were prepared based on the historical U.S. GAAP results of the Company and the historical results of Coram Materials, based on data provided by the former owners. These results are not necessarily indicative of what the Company's actual results would have been had the Coram Acquisition occurred on January 1, 2020 and do not reflect any operational efficiencies or potential cost savings that may occur as a result of the consolidation of these operations.

The pro forma amounts above reflect the following adjustments:

($ in millions)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Decrease in cost of goods sold related to fair value increase in inventory	$	2.6	$	4.2
Increase in depreciation, depletion and amortization expense	—		(0.9)
Exclusion of buyer transaction costs	0.1		0.6
Exclusion of seller transaction costs	—		0.3
Increase in interest expense	—		(0.8)
Increase in income tax expense	—		(1.1)

Acquisition by Vulcan Materials Company

On June 6, 2021, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Vulcan Materials Company, a New Jersey corporation (“Vulcan”), and Grizzly Merger Sub I, Inc., a Delaware corporation and a wholly owned subsidiary of Vulcan (“Grizzly”). The Merger Agreement provides that, subject to its terms and conditions, Grizzly will merge with and into U.S. Concrete (the “Merger”), with U.S. Concrete surviving the Merger and becoming a wholly owned subsidiary of Vulcan.

Subject to the terms and conditions set forth in the Merger Agreement, at the time of the Merger (the “Effective Time”), each issued and outstanding share of common stock, par value $0.001 per share, of U.S. Concrete (“USCR Stock”) (other than such shares (i) owned by U.S. Concrete or any of its subsidiaries, Vulcan or Grizzly or any other wholly owned subsidiary of Vulcan or (ii) exercising dissenters rights in accordance with Section 262 of the General Corporation Law of the State of Delaware) will be converted into the right to receive $74.00 in cash, without interest. In addition, each restricted stock unit that is solely subject to time-based vesting requirements granted under the Company's Long Term Incentive Plan that is outstanding immediately prior to the Effective Time will fully vest and be converted into the right to receive $74.00 in cash (without interest and subject to applicable tax withholding). The Merger Agreement provides each of the Company and Vulcan with certain termination rights and, under certain circumstances, may require the Company or Vulcan to pay a $50.0 million termination fee.

To effect this transaction, we incurred $6.3 million of transaction costs, which were included in selling, general and administrative expenses in our condensed consolidated statements of operations for the three and six months ended June 30, 2021.

The transaction is expected to close in the second half of 2021 subject to the receipt of approvals by the Company's shareholders, regulatory approval and other customary closing conditions. If the Merger is consummated, USCR Stock will be delisted from Nasdaq and deregistered under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

3.    ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES

($ in millions)
Balance, December 31, 2020	$	7.2
Provision for doubtful accounts and customer disputes	1.0
Uncollectible receivables written off, net of recoveries	(0.8)
Balance, June 30, 2021(1)	$	7.4

(1) Excludes $1.3 million of allowances for other receivables, which were included in other receivables, net, on our condensed consolidated balance sheets.

8

4.    INVENTORIES

($ in millions)	June 30, 2021		December 31, 2020
Raw materials(1)	$	67.6	$	64.4
Building materials for resale	6.4		4.1
Other	2.5		1.8
Total	$	76.5	$	70.3

(1) Additional inventory totaling $9.4 million as of June 30, 2021 and $2.5 million as of December 31, 2020 was classified as other assets, since we did not expect to sell it within one year following the respective balance sheet dates.

5.     DEBT

($ in millions)	June 30, 2021		December 31, 2020
5.125% senior unsecured notes due 2029(1)	$	400.0	$	400.0
6.375% senior unsecured notes due 2024 and unamortized premium(2)	—		201.8
Term loans(3)	300.0		—
Asset based revolving credit facility(4)	3.5		6.5
Delayed draw term loan facility(5)	—		—
Finance leases	85.4		87.9
Promissory notes	10.4		13.8
Debt issuance costs	(10.2)		(7.6)
Total debt	789.1		702.4
Less: current maturities	(40.8)		(33.7)
Long-term debt, net of current maturities	$	748.3	$	668.7

(1)    The effective interest rate for these notes was 5.25% as of both June 30, 2021 and December 31, 2020.

(2)    The effective interest rate for these notes was 6.56% as of December 31, 2020.

(3)    The effective interest rate for these loans was 3.25% as of June 30, 2021.

(4)    The interest rate for the revolving facility was 3.50% as of both June 30, 2021 and December 31, 2020.

(5) Terminated on June 25, 2021.

Asset Based Revolving Credit Facility

On June 25, 2021, we and certain of our subsidiaries, as co-borrowers and as guarantors, entered into the Fourth Amended and Restated Loan Security Agreement (the “Fourth Loan Agreement”) with certain financial institutions named therein as lenders and Bank of America, N.A., as agent for the lenders, which amended and restated the Third Amended and Restated Loan and Security Agreement, dated as of August 31, 2017 (the “Third Loan Agreement”). Among other things, the Fourth Loan Agreement provides for revolving commitments of $300.0 million (the “Revolving Facility”) and extended the maturity date to June 25, 2026. The Fourth Loan Agreement also amended certain terms of the Third Loan Agreement, including, without limitation, permitting the incurrence of the loans under the Term Loan Agreement (as defined below). In connection with entering into the Fourth Loan Agreement, we incurred $1.5 million of debt issuance costs.

The obligations under the Fourth Loan Agreement are secured by first priority security interests in accounts receivable, inventory and certain other personal property of the Company and its subsidiaries (the “ABL Collateral”) and second priority liens on and security interests in certain real property of the Company's subsidiaries and certain personal property of the Company and its subsidiary guarantors that is not ABL Collateral (the “Term Loan Collateral”).

As of June 30, 2021, we had $1.1 million of undrawn standby letters of credit under our Revolving Facility. Loans under the Revolving Facility are in the form of either base rate loans or London Interbank Offered Rate (“LIBOR”) loans denominated in U.S. dollars.

9

Our actual maximum credit availability under the Revolving Facility varies from time to time and is determined by calculating the value of our eligible accounts receivable, inventory, mixer trucks and machinery, minus reserves imposed by the lenders and certain other adjustments. Our availability under the Revolving Facility at June 30, 2021 was $214.7 million. We are required, upon the occurrence of certain events, to maintain a fixed charge coverage ratio of at least 1.0 to 1.0 for each period of 12 calendar months. The Fourth Loan Agreement contains customary representations, warranties, covenants and events of default. As of June 30, 2021, we were in compliance with all covenants under the Fourth Loan Agreement.

Term Loans

On June 25, 2021, we entered into a secured term loan agreement (the “Term Loan Agreement”) with certain subsidiaries, as guarantors, JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and the lenders and other parties named therein. The Term Loan Agreement provides for $300.0 million in aggregate principal amount of term loans (the “Term Loans”), which will mature on June 25, 2028. In connection with entering into the Term Loan Agreement, we incurred $4.6 million of debt issuance costs. Proceeds of the Term Loans will be used for general corporate purposes, including repayment of certain borrowings under the Revolving Facility and to redeem the Company's 6.375% senior unsecured notes due 2024 (the “2024 Notes”), as further discussed below.

The Term Loans bear interest at our option of either: (1) LIBOR (subject to a floor of 0.50%) plus a margin of 2.75% or (2) a base rate (which is equal to the greatest of the prime rate, the Federal Reserve Bank of New York effective rate plus 0.50% and LIBOR plus 1.00%, and is subject to a floor of 1.50%) plus a margin of 1.75%. Additionally, the Term Loans were issued at a price of 99.75%. The Term Loans are secured by a first priority lien on and security interest in the Term Loan Collateral and a second priority security interest in the ABL Collateral. The Term Loan Agreement contains customary representations, warranties, covenants and events of default, but does not contain any financial maintenance covenants. As of June 30, 2021, we were in compliance with all covenants under the Term Loan Agreement.

Termination of Delayed Draw Term Loan Facility

On June 25, 2021, in connection with entering into the Term Loan Agreement, the Company terminated the Credit and Guaranty Agreement, dated as of April 17, 2020, among the Company, certain subsidiaries as guarantors, Bank of America, N.A., as administrative agent and collateral agent, the lenders and other parties named therein (the “Delayed Draw Term Loan Agreement”). The Delayed Draw Term Loan Agreement provided for a $178.7 million delayed draw term loan facility and was scheduled to mature on May 1, 2025. There were no outstanding borrowings under the Delayed Draw Term Loan Agreement. The Delayed Draw Term Loan was secured by a first priority lien on and secured interest in the Term Loan Collateral. During the three months ended June 30, 2021, we wrote off $2.3 million of unamortized debt issuance costs for this facility as a loss on extinguishment of debt.

Redemption of 6.375% Senior Unsecured Notes Due 2024

On June 26, 2021, we redeemed $200.0 million of outstanding 2024 Notes, which represented all outstanding 2024 Notes, at a price of 101.594% of the principal amount thereof plus accrued, unpaid interest. During the three months ended June 30, 2021, we incurred a $3.1 million pre-tax loss on the redemption of the 2024 Notes, which included the redemption premium of $3.2 million and a $1.4 million write-off of unamortized debt issuance costs, net of $1.5 million of unamortized issuance premium.

Fair Value of Debt

The fair value of our 5.125% senior unsecured notes due 2029 (the “2029 Notes”), which was estimated based on broker/dealer quoted market prices, was $436.6 million as of June 30, 2021. The carrying values of the outstanding amounts under our Term Loans, Revolving Facility and our operating and finance lease assets and liabilities approximate fair value due to the nature of the underlying collateral associated with the debt along with floating interest rates.

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6.     STOCK-BASED COMPENSATION

We grant stock-based compensation awards to management, employees and non-employee directors under the U.S. Concrete, Inc. Long Term Incentive Plan (the “LTI Plan”), which was amended effective February 22, 2021 (the “Amendment”) to reserve an additional 880,000 shares of common stock for future issuance as equity-based awards to management and employees. Stock-based compensation may include stock options, stock appreciation rights, restricted stock awards, restricted stock units, cash-settled equity awards and performance awards. As of June 30, 2021, there were approximately 485,000 shares remaining for future issuance under the LTI Plan.

2021 Restricted Stock Unit Grant

On March 1, 2021, the Compensation Committee of the Board of Directors approved grants of 367,720 restricted stock units (the “2021 Grant”), conditioned upon obtaining stockholder approval of the Amendment. The Amendment was approved by the Company's stockholders at the Company's annual meeting on May 13, 2021, and the stockholder approval condition related to the 2021 Grant was satisfied. The 2021 Grant consisted of a 60% time-vested component that vests annually over a three-year period and a 40% stock performance hurdle component. The stock performance hurdle component triggers vesting upon our stock price reaching certain thresholds and may vest up to 200% of the target number of performance stock units granted.

The fair value of the 2021 Grant subject only to time-based vesting restrictions was determined based upon the $55.72 closing price of our common stock on the effective date of the grant. Based on stock performance following the contingent grant in March, the stock price thresholds for the target number of performance stock units had been met, and the fair value for that 40% portion of the 2021 Grant was also determined to be the $55.72 closing price of our common stock on the effective date of the grant, and the entire $8.1 million fair value for this portion of the target performance stock units was recognized during the three months ended June 30, 2021.

The fair value of the above-target portion of the 2021 Grant subject to additional market performance hurdles was determined utilizing a Monte Carlo financial valuation model. Compensation expense determined utilizing the Monte Carlo simulation is recognized regardless of whether the common stock reaches the defined thresholds, provided that each grantee remains an employee at the end of the expected term. The assumptions used to value the above-target portion of the 2021 Grant were as follows:

	Value
Expected term (years)(1)	0.3 - 0.4
Expected volatility	72.9%
Risk-free interest rate	0.3%
Vesting price(1)(2)	$69.23 - $74.95
Average grant date fair value per share	$49.65 - $47.97

(1)The $69.23 stock price hurdle for the 2021 Grant was met during June 2021, the related performance stock units vested, and the related expense that would have been recognized over 0.3 years was accelerated and recognized during the three months ended June 30, 2021.

(2)The vesting price is the average of the daily volume-weighted average share price of USCR Stock over any period of 20 consecutive trading days within the three-year period beginning on the date of grant, based on hurdles established on March 1, 2021.

Stock-Based Compensation Cost

We recognized stock-based compensation expense of $14.7 million and $17.6 million during the three and six months ended June 30, 2021, respectively, and $2.5 million and $6.2 million during the three and six months ended June 30, 2020, respectively. Stock-based compensation expense is reflected in selling, general and administrative expenses in our condensed consolidated statements of operations. Stock-based compensation expense was higher during the three and six months ended June 30, 2021 than it otherwise would have been due to the general increase in stock price from the date of the conditional grant through June 30, 2021, which resulted in higher fair value per share when valued as of the stockholder approval date, as well as the acceleration of expense when certain stock price thresholds were met and performance stock units vested.

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7.     INCOME TAXES

We recorded an income tax benefit of $0.7 million and $5.4 million for the three and six months ended June 30, 2021, respectively, using the discrete method. The discrete method treats the year-to-date period as if it was the annual period and determines the income tax expense or benefit on that basis. We have historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full year to “ordinary” income or loss for the reporting period. However, for the three and six-month periods ended June 30, 2021, we determined that since minor changes in estimated “ordinary” income would result in significant changes in the estimated annual effective tax rate, our historical method would not provide a reliable estimate of income tax benefit. Our effective tax rate utilizing the discrete method differed substantially from the statutory tax rate primarily due to (1) significant Section 162(m) limitations on executive compensation and (2) our estimated interest expense limitation in accordance with the Tax Cuts and Jobs Act for which a full valuation allowance is anticipated. These differences reduced the income tax benefit recorded for the three and six months ended June 30, 2021, which was partially offset by excess tax benefits recognized for stock-based compensation.

We recorded an income tax expense of $4.3 million and an income tax benefit of $0.6 million for the three and six months ended June 30, 2020, respectively. For the six months ended June 30, 2020, our effective tax rate differed substantially from the federal statutory rate primarily due to additional tax benefits recognized related to the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”) enacted on March 27, 2020. The CARES Act, among other things, modified the business interest deduction limitation for tax years beginning in 2019 and 2020 from 30% of adjusted taxable income (“ATI”) to 50% of ATI. As a result, we recorded an additional tax benefit of $3.2 million in the six months ended June 30, 2020 to reflect the CARES Act change to our estimated interest limitation for the year ended December 31, 2019. This tax benefit was partially offset by a net tax shortfall for stock-based compensation.

Other receivables, net, on our condensed consolidated balance sheets included federal and state income tax receivables of $18.7 million as of June 30, 2021 and $5.8 million as of December 31, 2020.

8.     EARNINGS (LOSS) PER SHARE

We excluded 0.5 million shares from the calculation of diluted earnings per share for both the three and six months ended June 30, 2021, and 0.8 million and 0.6 million shares for the three and six months ended June 30, 2020, respectively, because they were anti-dilutive. In all periods, these potentially dilutive shares related to our employee equity awards that vest either over time or upon the achievement of certain stock price targets.

9.     COMMITMENTS AND CONTINGENCIES

Legal Proceedings

From time to time, and currently, we are subject to various claims and litigation brought by employees, customers and other third parties for, among other matters, personal injuries, property damages, product defects and delay damages that have, or allegedly have, resulted from the conduct of our operations. As a result of these types of claims and litigation, we must periodically evaluate the probability of damages being assessed against us and the range of possible outcomes. In each reporting period, if we determine that the likelihood of damages being assessed against us is probable, and if we believe we can estimate a range of possible outcomes, then we will record a liability. The amount of the liability will be based upon a specific estimate, if we believe a specific estimate to be likely, or it will reflect the low end of our range. Currently, there are no material legal proceedings pending against us.

From time to time, we may receive funding deficiency demands or withdrawal liability assessments related to multi-employer pension plans to which we contribute. We are unable to estimate the amount of any future demands or assessments because the actions of each of the other contributing employers in the plans has an effect on each of the other contributing employers, and the development of a rehabilitation plan by the trustees and subsequent submittal to and approval by the Internal Revenue Service is not predictable. Further, the allocation of fund assets and return assumptions by trustees are variable, as are actual investment returns relative to the plan assumptions. As of June 30, 2021, the Company had accrued $1.4 million for a withdrawal liability assessment related to a multi-employer pension plan in which the Company participated. The Company continues to dispute and negotiate the assessment.

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As of August 5, 2021, there were no material product defect claims pending against us. Accordingly, our existing accruals for claims against us do not reflect any material amounts relating to product defect claims. While our management is not aware of any facts that would reasonably be expected to lead to material product defect claims against us that would have a material adverse effect on our business, financial condition or results of operations, it is possible that claims could be asserted against us in the future. We do not maintain insurance that would cover all damages resulting from product defect claims. In particular, we generally do not maintain insurance coverage for the cost of removing and rebuilding structures. In addition, our indemnification arrangements with contractors or others, when obtained, generally provide only limited protection against product defect claims. Due to inherent uncertainties associated with estimating unasserted claims in our business, we cannot estimate the amount of any future loss that may be attributable to such unasserted product defect claims related to ready-mixed concrete we have delivered prior to June 30, 2021.

We believe that the resolution of any litigation currently pending or threatened against us or any of our subsidiaries will not materially exceed our existing accruals for those matters. However, because of the inherent uncertainty of litigation, there is a risk that we may have to increase our accruals for one or more claims or proceedings to which we are a party as more information becomes available or proceedings progress, and any such increase in accruals could have a material adverse effect on our consolidated financial condition or results of operations. We expect in the future that we will, from time to time, be a party to litigation or administrative proceedings that arise in the normal course of our business.

We are subject to federal, state and local environmental laws and regulations concerning, among other matters, air emissions and wastewater discharge. Our management believes we are in substantial compliance with applicable environmental laws and regulations. From time to time, we receive claims from federal and state environmental regulatory agencies and entities asserting that we may be in violation of environmental laws and regulations. Based on experience and the information currently available, our management does not believe that these claims will materially exceed our related accruals. Despite compliance and experience, it is possible that we could be held liable for future charges, which might be material, but are not currently known to us or cannot be estimated by us. In addition, changes in federal or state laws, regulations or requirements, or discovery of currently unknown conditions, could require additional expenditures.

As permitted under Delaware law, we have agreements that provide indemnification of officers and directors for certain events or occurrences while the officer or director is or was serving at our request in such capacity. The maximum potential amount of future payments that we could be required to make under these indemnification agreements is not limited; however, we have a director and officer insurance policy that potentially limits our exposure and enables us to recover a portion of future amounts that may be paid. As a result of the insurance policy coverage, we believe the potential liability of these indemnification agreements is minimal. Accordingly, we have not recorded any liabilities for these agreements as of June 30, 2021.

We and our subsidiaries are parties to agreements that require us to provide indemnification in certain instances when we acquire businesses and real estate and in the ordinary course of business with our customers, suppliers, lessors and service providers. As of August 5, 2021, there were no material pending claims related to such indemnification.

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Litigation Related to the Vulcan Merger

As of August 2, 2021, several separate actions (collectively, the “USCR Shareholder Actions”) have been filed in federal courts in New York, Delaware, New Jersey, and Pennsylvania by purported owners of U.S. Concrete common stock in connection with the transactions contemplated by the Merger Agreement: Stein v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 2, 2021); Waterman v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 8, 2021); Clark v. U.S. Concrete, Inc., et al. (D. Del July 9, 2021) (the “Clark Action”); Harris v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 13, 2021); Siddall v. U.S. Concrete, Inc., et al. (D.N.J. July 13, 2021); Whitfield v. U.S. Concrete, Inc., et al (E.D. Pa. July 13, 2021); Murphy v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 14, 2021); Kent v. U.S. Concrete, Inc., et al. (D.N.J. July 27, 2021) (the “Kent Action”); Wilhelm v. U.S. Concrete, Inc., et al. (D. Del July 28, 2021) (the “Wilhelm Action”); Brave v. U.S. Concrete, Inc., et al. (D.N.J. July 30, 2021) (the “Brave Action”) and Beauregard v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 30, 2021) (the “Beauregard Action”). Each of the USCR Shareholder Actions names the Company and its directors as defendants and the Clark Action additionally names former Company director William J. Sandbrook as a defendant. Each of the USCR Shareholder Actions alleges, among other things, that the defendants violated federal securities laws by failing to disclose certain information in the Preliminary Proxy Statement, or, in the case of the Kent Action, Wilhelm Action, Brave Action and Beauregard Action, the Definitive Proxy Statement, on Schedule 14A filed by the Company (the “Proxy”) relating to the Company's financial forecasts and financial analyses conducted by the Company's financial advisors, Evercore Group, L.L.C. (“Evercore”) and BNP Paribas Securities Corp. (“BNP”). Certain of the USCR Shareholder Actions further allege that the defendants violated federal securities laws by failing to disclose certain information in the Proxy relating to the sales process and alleged conflicts of interests for management, financial projections for the Company provided to Evercore and BNP, and the data and inputs underlying the financial valuation analyses that support the fairness opinions of Evercore and BNP. The Clark Action further alleges that the Company's directors breached their fiduciary duties by entering into the Merger Agreement through an unfair process and for inadequate consideration. The plaintiffs in the USCR Shareholder Actions, among other things, seek to enjoin the transactions contemplated by the Merger Agreement, an award of attorneys’ fees and expenses and, in certain instances, damages in an unspecified amount.

The Company believes that the USCR Shareholder Actions are without merit, and the Company and the individual defendants intend to defend against the USCR Shareholder Actions; however, the Company cannot predict the amount of time and expense that will be required to resolve the USCR Shareholder Actions nor their outcomes.

The outcome of any pending or future litigation is uncertain. Such litigation if not resolved, could prevent or delay consummation of the Merger and result in substantial costs of the Company, including any costs associated with the indemnification of directors and officers. One of the conditions to the consummation of the Merger is that no governmental entity of competent jurisdiction (i) enacted, issued or promulgated any law or order that is in effect or (ii) issued or granted any order or injunction (whether temporary, preliminary or permanent) that is in effect, in each case which has the effect of restraining, enjoining or otherwise prohibiting the consummation of the Merger. Therefore, if a plaintiff were successful in obtaining an injunction prohibiting the consummation of the Merger, then such injunction may prevent the Merger from being consummated, or from being consummated within the expected time frame.

Insurance Programs

We maintain third-party insurance coverage against certain workers’ compensation, automobile and general liability risks. Under certain components of our insurance program, we share the risk of loss with our insurance underwriters by maintaining high deductibles subject to aggregate annual loss limitations. Generally, our insurance program deductible retentions per occurrence are $1.0 million to $2.0 million for workers’ compensation and general liability and $2.0 million to $10.0 million for automobile, although certain of our operations are self-insured for workers’ compensation. We record expenses for expected losses under the programs. The expected losses are determined using a combination of our historical loss experience and subjective assessments of our future loss exposure. The estimated losses are subject to uncertainty, including changes in claims reporting patterns, claims settlement patterns, judicial decisions, legislation and economic conditions. Although we believe that the estimated losses we have recorded are reasonable, significant differences related to the items noted above could materially affect our insurance obligations and future expense. The amount accrued for self-insurance claims, which is recorded in accrued liabilities and other long-term obligations and deferred credits, was $34.9 million as of June 30, 2021 and $33.0 million as of December 31, 2020.

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Guarantees

In the normal course of business, we and our subsidiaries were contingently liable under $12.9 million in performance bonds that various contractors, states and municipalities have required as of June 30, 2021. The bonds principally relate to construction contracts, reclamation obligations, licensing and permitting. We and our subsidiaries have indemnified the underwriting insurance company against any exposure under the performance bonds. No material claims have been made against these bonds.

The Company has entered into standby letter of credit arrangements with various banks generally for the purpose of protection against insurance claims. As of June 30, 2021, the Company had a maximum financial exposure from these standby letters of credit totaling $25.9 million, of which $1.1 million reduces the Company's borrowing availability under its Revolving Facility. See Note 5 for additional information.

10.     SEGMENT INFORMATION

Our two reportable segments consist of ready-mixed concrete and aggregate products as described below.

Our ready-mixed concrete segment produces and sells ready-mixed concrete. This segment serves the following markets: Texas, California, New York City, New Jersey, Washington, D.C., Philadelphia, Oklahoma and the U.S. Virgin Islands. Our aggregate products segment produces crushed stone, sand and gravel and serves the markets in which our ready-mixed concrete segment operates as well as the West Coast and Hawaii. Other operations and products not associated with a reportable segment include our aggregates distribution operations, building materials stores, hauling operations, ARIDUS® Rapid Drying Concrete technology, brokered product sales and recycled aggregates.

Our customers are generally involved in the construction industry, which is a cyclical business and is subject to general and more localized economic conditions. In addition, our business is impacted by seasonal variations in weather conditions, which vary by regional market. Accordingly, demand for our products and services during the winter months is typically lower than in other months of the year because of inclement weather. Also, sustained periods of inclement weather and other adverse weather conditions could cause the delay of construction projects during other times of the year.

Our chief operating decision maker evaluates segment performance and allocates resources based on Adjusted EBITDA. We define Adjusted EBITDA as our net income, excluding the impact of income taxes, depreciation, depletion and amortization, net interest expense and certain other non-cash, non-recurring and/or unusual, non-operating items including, but not limited to: non-cash stock compensation expense, non-cash change in value of contingent consideration, acquisition-related costs, officer transition expenses, purchase accounting adjustments for inventory, and realignment initiative costs. Acquisition-related costs consist of fees and expenses for accountants, lawyers and other professionals incurred during the negotiation and closing of strategic acquisitions. Acquisition-related costs do not include fees or expenses associated with post-closing integration of strategic acquisitions. Many of the impacts excluded to derive Adjusted EBITDA are similar to those excluded in calculating our compliance with our debt covenants.

We consider Adjusted EBITDA to be an indicator of the operational strength and performance of our business. We have included Adjusted EBITDA because it is a key financial measure used by our management to (1) internally measure our operating performance and (2) assess our ability to service our debt, incur additional debt and meet our capital expenditure requirements.

Adjusted EBITDA should not be construed as an alternative to, or a better indicator of, operating income or loss, is not based on U.S. GAAP, and is not a measure of our cash flows or ability to fund our cash needs. Our measurements of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies and may not be comparable to similarly titled measures used in the agreements governing our debt.

We generally account for inter-segment sales at market prices. Corporate includes executive, administrative, financial, legal, human resources, business development and risk management activities that are not allocated to reportable segments and are excluded from segment Adjusted EBITDA. Eliminations include transactions to account for intercompany activity.

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The following tables set forth certain financial information relating to our operations by reportable segment ($ in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Segment:
Ready-mixed concrete
Sales to external customers	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products
Sales to external customers	25.2		26.1		47.8		47.2
Freight revenue on sales to external customers	11.2		12.1		20.6		22.1
Intersegment sales	16.8		16.3		29.3		28.8
Total aggregate products	53.2		54.5		97.7		98.1
Total reportable segment revenue	327.5		326.9		613.5		662.7
Other products and eliminations	(0.1)		(4.2)		(0.4)		(5.6)
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1
Reportable Segment Adjusted EBITDA:
Ready-mixed concrete	$	30.9	$	38.1	$	55.8	$	69.8
Aggregate products	20.1		21.6		32.6		32.9
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Reconciliation of Total Reportable Segment Adjusted EBITDA  to Net Income (Loss):
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Other products and eliminations from operations	0.7		0.3		0.4		0.4
Corporate overhead	(32.6)		(16.3)		(46.3)		(31.9)
Depreciation, depletion and amortization for reportable segments	(24.2)		(23.7)		(47.1)		(45.5)
Interest expense, net	(10.3)		(11.4)		(20.7)		(22.8)
Loss on extinguishment of debt	(5.5)		—		(5.5)		—
Gain on sale of business	—		—		0.7		—
Realignment initiative costs	—		(0.8)		(0.4)		(0.8)
Change in value of contingent consideration for reportable segments	—		5.8		0.1		5.5
Purchase accounting adjustments for inventory	(0.5)		(2.6)		(0.6)		(4.2)
Corporate, other products and eliminations other income (loss), net	0.2		(0.2)		0.3		(0.3)
Income (loss) before income taxes	(21.2)		10.8		(30.7)		3.1
Income tax benefit (expense)	0.7		(4.3)		5.4		0.6
Net income (loss)	$	(20.5)	$	6.5	$	(25.3)	$	3.7

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	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Capital Expenditures:
Ready-mixed concrete(1)	$	10.4	$	4.3	$	11.5	$	8.7
Aggregate products(2)	2.9		2.5		34.0		5.3
Other products and corporate	0.3		0.1		0.5		0.2
Total capital expenditures	$	13.6	$	6.9	$	46.0	$	14.2

 (1)    Includes $8.2 million for the acquisition of the rail terminal and bulk storage facility for cementitious materials in Stockton, California for the three and six months ended June 30, 2021.

 (2)    Includes $28.7 million for the acquisition of the property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for the six months ended June 30, 2021.

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Product:
Ready-mixed concrete	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products	36.4		38.2		68.4		69.3
Other(1)	16.7		12.1		28.9		23.2
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1

 (1) Includes building materials, aggregates distribution, hauling and other.

	June 30, 2021		December 31, 2020
Identifiable Property, Plant and Equipment Assets:
Ready-mixed concrete	$	289.5	$	286.9
Aggregate products	495.6		478.1
Other products and corporate	21.7		23.2
Total identifiable assets	$	806.8	$	788.2

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

The following discussion should be read in conjunction with the accompanying quarterly unaudited condensed consolidated financial statements as well as our Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 10-K”). Our 2020 10-K includes additional information about our significant and critical accounting policies, as well as a detailed discussion of the most significant risks associated with our financial condition and operating results. Unless noted otherwise, the discussions that follow refer to the three months ended June 30, 2021 as “the quarter” and the six months ended June 30, 2021 as “the first six months” and compare the results to the three months and six months ended June 30, 2020, respectively.

Pending Acquisition by Vulcan Materials Company

On June 6, 2021, Vulcan Materials Company (“Vulcan”), Grizzly Merger Sub I, Inc., a wholly owned subsidiary of Vulcan (“Grizzly Merger Sub”) and the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”). The Merger Agreement provides that, subject to the terms and conditions set forth therein, Grizzly Merger Sub will merge with and into the Company (the “Merger”), with the Company surviving the Merger and becoming a wholly owned subsidiary of Vulcan. Subject to the terms and conditions of the Merger Agreement, at the effective time of the Merger, each issued and outstanding share of USCR Stock (other than such shares (i) owned by the Company, Vulcan or Grizzly Merger Sub or owned by any wholly owned subsidiary of Vulcan (other than Grizzly Merger Sub) or of the Company or (ii) exercising dissenters rights in accordance with Section 262 of the General Corporation Law of the State of Delaware) will be converted into the right to receive $74.00 in cash, without interest. The transaction has been unanimously approved by the boards of directors of both companies and is expected to close in the second half of 2021, subject to the receipt of required regulatory approvals, approval by our stockholders, and other customary closing conditions. If the Merger is consummated, USCR Stock will be delisted from Nasdaq and deregistered under the Securities Exchange Act of 1934, as amended.

The Merger Agreement provides each of the Company and Vulcan with certain termination rights and, under certain circumstances, may require the Company or Vulcan to pay a $50.0 million termination fee.

General

We are a leading heavy building materials supplier of aggregates and ready-mixed concrete in select geographic markets in the United States, the U.S. Virgin Islands and Canada. The geographic markets for our products are generally local, except for our Canadian aggregate products operation, Polaris Materials Corp. (“Polaris”), which primarily serves markets in California. Our customers are generally involved in the construction industry, which is a cyclical business and is subject to general and more localized economic conditions. In addition, our business is impacted by seasonal variations in weather conditions, which vary by regional market. Our operating results are subject to fluctuations in the level and mix of construction activity that occur in our markets. The level of activity affects the demand for our products, while the product mix of activity among the various segments of the construction industry affects both our relative competitive strengths and our operating margins. Commercial and industrial projects generally provide more opportunities to sell value-added products that are designed to meet the high-performance requirements of these types of projects. We conduct our business primarily through two reportable segments: ready-mixed concrete and aggregate products.

Ready-mixed concrete.  Our ready-mixed concrete segment (which represented 84.1% of our revenue for the six months ended June 30, 2021) engages principally in the formulation, preparation and delivery of ready-mixed concrete to our customers’ job sites. We provide ready-mixed concrete from our operations in Texas, Northern California, New York City, New Jersey, Washington, D.C., Philadelphia, Oklahoma and the U.S. Virgin Islands. Ready-mixed concrete is a highly versatile construction material that results from combining coarse and fine aggregates, such as gravel, crushed stone and sand, with water, various chemical admixtures and cement. We also provide services intended to reduce our customers’ overall construction costs by lowering the installed, or “in-place,” cost of concrete. These services include the formulation of mixtures for specific design uses, on-site and lab-based product quality control and customized delivery programs to meet our customers’ needs.

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Aggregate products. Our aggregate products segment (which represented 11.2% of our revenue for the six months ended June 30, 2021, excluding $29.3 million of intersegment sales) produces crushed stone, sand and gravel from our aggregates facilities located in British Columbia, Canada; Texas; Oklahoma; New Jersey; New York; and the U.S. Virgin Islands. We sell these aggregates for use in commercial, industrial, and public works projects, as well as consume them internally in the production of ready-mixed concrete. We produced approximately 6.3 million tons of aggregates during the six months ended June 30, 2021, with Canada representing 35%, Texas/Oklahoma representing 37%, New Jersey/New York representing 26%, and the U.S. Virgin Islands representing 2% of the total production. We believe our aggregate reserves provide us with additional raw materials sourcing flexibility and supply availability.

Coronavirus Impact

The coronavirus (“COVID-19”) pandemic began to impact our operations in March 2020 when residents throughout the U.S. began varying periods under “stay-at-home” or “shelter-in-place” orders and has continued to impact numerous aspects of our business since then. We continue to follow the enhanced safety and health protocols established in 2020, while following evolving state and local guidelines, and we have maintained our focus on cost containment efforts to help minimize the resulting impact to our operating results. In addition, we continue to monitor the impact of the pandemic on our customers and our pipeline. The long-term impact to our business remains unknown because we are unable to accurately predict the impact of COVID-19 due to various uncertainties, including the severity of the virus, the duration of the outbreak, the impact of variants of the virus, the availability and efficacy of vaccines, the speed at which such vaccines are administered, the likelihood of a resurgence of positive cases, actions that may be taken by governmental authorities intended to minimize the spread of the pandemic or to stimulate the economy and other unintended consequences. Accordingly, business disruption related to the COVID-19 outbreak may continue to cause significant fluctuations in our business, impact demand for our products and our workforce availability and magnify risks associated with our business and operations.

Acquisitions and Business Combinations

On February 24, 2020, we acquired all of the equity of Coram Materials Corp. and certain of its affiliates, a sand and gravel products provider located on Long Island in New York. On November 7, 2020, we acquired a ready-mixed concrete business in our West Region.

On March 12, 2021, we acquired property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for $28.7 million (the “Orca Acquisition”). We made this investment to eliminate future royalty payments, which had previously been recognized in cost of goods sold excluding depreciation, depletion and amortization in our condensed consolidated statements of operations.

On April 20, 2021, we purchased a rail terminal and bulk storage facility for cementitious materials in Stockton, California for $8.2 million that is currently leased to and operated by a third party (the “Stockton Acquisition”). We made this investment to increase the control and stability over our raw material supply chain to support our West Region ready-mixed concrete business.

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Results of Operations

The discussions that follow reflect results for the three and six months ended June 30, 2021 (“quarter” and “first six months of 2021”, respectively) compared to the three and six months ended June 30, 2020, respectively, unless otherwise noted.

	Three Months Ended June 30,				%	Six Months Ended June 30,				%
($ in millions except selling prices)	2021		2020		Change(1)	2021		2020		Change(1)
Revenue	$	327.4	$	322.7	1.5%	$	613.1	$	657.1	(6.7)%
Cost of goods sold excluding depreciation, depletion and amortization	259.4		250.1		3.7	492.5		524.0		(6.0)
Selling, general and administrative expenses	48.3		31.7		52.4	77.6		65.4		18.7
Depreciation, depletion and amortization	25.7		25.2		2.0	50.1		48.6		3.1
Change in value of contingent consideration	—		(5.8)		100.0	(0.1)		(5.5)		98.2
Gain on sale/disposal of assets and business, net	(0.1)		(0.1)		—	(1.6)		(0.1)		(1,500.0)
Operating income (loss)	(5.9)		21.6		(127.3)	(5.4)		24.7		(121.9)
Interest expense, net	10.3		11.4		(9.6)	20.7		22.8		(9.2)
Loss on extinguishment of debt	5.5		—		NM	5.5		—		NM
Other income, net	(0.5)		(0.6)		(16.7)	(0.9)		(1.2)		25.0
Income (loss) before income taxes	(21.2)		10.8		(296.3)	(30.7)		3.1		(1,090.3)
Income tax expense (benefit)	(0.7)		4.3		(116.3)	(5.4)		(0.6)		(800.0)
Net income (loss)	(20.5)		6.5		(415.4)	(25.3)		3.7		(783.8)
Amounts attributable to non-controlling interest	(0.2)		(0.1)		(100.0)	(0.2)		0.2		(200.0)
Net income (loss) attributable to U.S. Concrete	$	(20.3)	$	6.6	(407.6)%	$	(25.1)	$	3.5	(817.1)%
Ready-Mixed Concrete Data:
Average selling price (“ASP”) per cubic yard	$	138.18	$	137.18	0.7%	$	139.72	$	140.77	(0.7)%
Sales volume in thousand cubic yards	1,968		1,982		(0.7)%	3,672		4,003		(8.3)%
Aggregate Products Data:
ASP per ton(2)	$	13.50	$	12.83	5.2%	$	13.42	$	12.56	6.8%
Sales volume in thousand tons	3,034		3,188		(4.8)%	5,620		5,820		(3.4)%

(1)    “NM” is defined as “not meaningful.”

(2)    Our calculation of ASP excludes freight and certain other ancillary revenue and may differ from other companies in the construction materials industry.

Revenue. Revenue for the quarter increased 1.5%, or $4.7 million, resulting from an increase in sales of ready-mixed concrete and other products that was partially offset by lower revenue from aggregate products. Our results were impacted by regional differences in weather and levels of construction activity, lingering effects of COVID-19 pandemic-related delays in construction jobs, and demand for our products. Our East Region realized an increase in sales volume for the quarter, in both ready-mixed concrete and aggregate products. Our Central Region was impacted by inclement weather and cement supply allocations, with a decline in ready-mixed concrete volumes, but a slight increase in sales of aggregate products. Our West Region experienced declines in sales volumes of both ready-mixed concrete and aggregate products, with expectations for construction activity to increase in the second half of 2021. Our overall ready-mixed concrete ASP increased 0.7% during the quarter due to product and geographic mix. While sales volume of aggregate products for the quarter declined 4.8%, higher ASP helped mitigate the impact on revenue for the aggregate products segment. Higher sales volumes of aggregate products in our East Region in the quarter were more than offset by sales declines in other markets, particularly our West Region, which was impacted by lower demand from construction activity.

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Revenue for the first six months of 2021 decreased 6.7%. Impacted by both the regional effects of inclement weather and the lingering effect of COVID-19 pandemic-related delays on construction jobs, ready-mixed concrete volumes were down in all regions. In addition, our average ready-mixed concrete ASP was lower due to product and geographic mix. Power disruptions associated with Winter Storm Uri forced us to suspend operations in Texas temporarily in February 2021. Higher rain levels in Texas also negatively impacted construction activity in the first six months of 2021. Increases in our aggregate products segment ASP helped to mitigate the decline in sales volume of aggregates; however, pass through freight was lower in the first six months of 2021 due to the lower sales volume.

Cost of goods sold excluding depreciation, depletion and amortization (“DD&A”). Cost of goods sold excluding DD&A increased for the quarter, with the majority resulting from higher variable costs (particularly plant costs and delivery costs, which include higher fuel costs) as well as higher fixed costs.

Cost of goods sold excluding DD&A decreased for the first six months of 2021, but as a percentage of sales were not fully leveraged with the decline in revenue due to higher plant costs, particularly repair and maintenance costs, and fuel costs.

Selling, general and administrative expenses. Selling, general and administrative expenses increased $16.6 million, or 52.4%, for the quarter, primarily due to a $12.2 million increase in stock-compensation expense and an increase in professional fees associated with the Merger, partially offset by lower personnel expenses. The increase in stock-based compensation expense was due to the increase in our stock price from the time the 2021 annual equity award was approved by our Board of Directors as of March 1, 2021 to when our stockholders approved the equity plan amendment to add shares to the equity plan (and the award was deemed granted for accounting purposes) at our annual stockholders' meeting on May 13, 2021, including certain performance thresholds being met, and the award level.

Selling, general and administrative expenses were higher in the first six months of 2021 due primarily to an $11.4 million increase in stock-based compensation expense and $4.4 million of incremental professional expenses, partially offset by lower expenses resulting from our cost saving initiatives.

Change in value of contingent consideration. The non-cash gain on the revaluation of contingent consideration recorded during the second quarter and first six months of 2020 resulted from changes in management's expectations in 2020 EBITDA.

Gain on sale/disposal of assets and business, net. The first six months of 2021 included gains from sales of a non-core piece of real estate in Texas and certain ready-mixed concrete plants in Oklahoma.

Income taxes.  We recorded an income tax benefit of $0.7 million and $5.4 million for the three and six months ended June 30, 2021, respectively, using the discrete method. The discrete method treats the year-to-date period as if it was the annual period and determines the income tax expense or benefit on that basis. We have historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full year to “ordinary” income or loss for the reporting period. However, for the three and six-month periods ended June 30, 2021, we determined that since minor changes in estimated “ordinary” income would result in significant changes in the estimated annual effective tax rate, our historical method would not provide a reliable estimate of income tax benefit. Our effective tax rate utilizing the discrete method differed substantially from the statutory tax rate primarily due to (1) significant Section 162(m) limitations on executive compensation and (2) our estimated interest expense limitation in accordance with the Tax Cuts and Jobs Act for which a full valuation allowance is anticipated. These differences reduced the income tax benefit recorded for the three and six months ended June 30, 2021, which was partially offset by excess tax benefits recognized for stock-based compensation.

We recorded an income tax expense of $4.3 million and an income tax benefit of $0.6 million for the three and six months ended June 30, 2020, respectively. For the six months ended June 30, 2020, our effective tax rate differed substantially from the federal statutory rate primarily due to additional tax benefits recognized related to the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”) enacted on March 27, 2020. The CARES Act, among other things, modified the business interest deduction limitation for tax years beginning in 2019 and 2020 from 30% of adjusted taxable income (“ATI”) to 50% of ATI. As a result, we recorded an additional tax benefit of $3.2 million in the six months ended June 30, 2020 to reflect the CARES Act change to our estimated interest limitation for the year ended December 31, 2019. This tax benefit was partially offset by a net tax shortfall for stock-based compensation.

Other receivables, net, on our condensed consolidated balance sheets included federal and state income tax receivables of $18.7 million as of June 30, 2021 and $5.8 million as of December 31, 2020.

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Segment Operating Results

Our chief operating decision maker reviews operating results based on our two reportable segments, which are ready-mixed concrete and aggregate products, and evaluates segment performance and allocates resources based on Adjusted EBITDA. We define Adjusted EBITDA as our net income, excluding the impact of income taxes, depreciation, depletion and amortization, net interest expense and certain other non-cash, non-recurring and/or unusual, non-operating items including, but not limited to: non-cash stock compensation expense, non-cash change in value of contingent consideration, acquisition-related costs, officer transition expenses, purchase accounting adjustments for inventory and realignment initiative costs. Acquisition-related costs consist of fees and expenses for accountants, lawyers and other professionals incurred during the negotiation and closing of strategic acquisitions. Acquisition-related costs do not include fees or expenses associated with post-closing integration of strategic acquisitions. Many of the impacts excluded to derive Adjusted EBITDA are similar to those excluded in calculating our compliance with our debt covenants.

We consider Adjusted EBITDA to be an indicator of the operational strength and performance of our business. We have included Adjusted EBITDA because it is a key financial measure used by our management to (1) internally measure our operating performance and (2) assess our ability to service our debt, incur additional debt and meet our capital expenditure requirements.

Adjusted EBITDA should not be construed as an alternative to, or a better indicator of, operating income or loss, is not based on accounting principles generally accepted in the United States of America (“U.S. GAAP”), and is not a measure of our cash flows or ability to fund our cash needs. Our measurements of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies and may not be comparable to similarly titled measures used in agreements that govern our debt.

See the prior discussion of revenue within this Item 2 as well as Note 10, “Segment Information” to our condensed consolidated financial statements in this report for additional information regarding our segments and the reconciliation of Adjusted EBITDA to net income.

Ready-Mixed Concrete

	Three Months Ended June 30,						Increase/ (Decrease)	Six Months Ended June 30,						Increase/ (Decrease)
($ in millions except selling prices)	2021			2020			%	2021			2020			%
Ready-Mixed Concrete Segment:
Revenue	$	274.3		$	272.4		0.7%	$	515.8		$	564.6		(8.6)%
Segment revenue as a percentage of total revenue	83.8		%	84.4		%		84.1		%	85.9		%
Adjusted EBITDA	$	30.9		$	38.1		(18.9)%	$	55.8		$	69.8		(20.1)%
Adjusted EBITDA as a percentage of segment revenue	11.3		%	14.0		%		10.8		%	12.4		%
Ready-Mixed Concrete Data:
ASP per cubic yard(1)	$	138.18		$	137.18		0.7%	$	139.72		$	140.77		(0.7)%
Sales volume in thousand cubic yards	1,968			1,982			(0.7)%	3,672			4,003			(8.3)%

(1)    Calculation excludes certain ancillary revenue that is reported within the segment.

Adjusted EBITDA.  Despite slightly higher revenue in the quarter, increases in plant costs and delivery costs, including fuel costs, resulted in a year-over-year contraction of segment Adjusted EBITDA. While overall costs for the first six months of 2021 were lower than the same period last year, plant and delivery costs as a percent of sales did not decrease at the same rate as revenue, resulting in lower Adjusted EBITDA as a percent of segment revenue year over year.

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Aggregate Products

	Three Months Ended June 30,						Increase/ (Decrease)	Six Months Ended June 30,						Increase/ (Decrease)
($ in millions except selling prices)	2021			2020			%	2021			2020			%
Aggregate Products Segment:
Sales to external customers	$	25.2		$	26.1			$	47.8		$	47.2
Freight revenue on sales to external customers	11.2			12.1				$	20.6		$	22.1
Intersegment sales(1)	16.8			16.3				$	29.3		$	28.8
Total aggregate products revenue	$	53.2		$	54.5		(2.4)%	$	97.7		$	98.1		(0.4)%
Segment revenue, excluding intersegment sales, as a percentage of total revenue	11.1		%	11.8		%		11.2		%	10.5		%
Adjusted EBITDA	$	20.1		$	21.6		(6.9)%	$	32.6		$	32.9		(0.9)%
Adjusted EBITDA as a percentage of total aggregate products revenue	37.8		%	39.6		%		33.4		%	33.5		%
Aggregate Products Data:
ASP per ton(2)	$	13.50		$	12.83		5.2%	$	13.42		$	12.56		6.8%
Sales volume in thousand tons	3,034			3,188			(4.8)%	5,620			5,820			(3.4)%

(1)    We sell aggregate products to our ready-mixed concrete segment at market price.

(2)    Our calculation excludes freight and certain other ancillary revenue.  Our definition and calculation of ASP may differ from other companies in the construction materials industry.

Adjusted EBITDA.  For the quarter, segment Adjusted EBITDA as a percent of segment revenue declined 180 basis points, while revenue declined 2.4%. The impact of lower revenue on Adjusted EBITDA was mitigated by the build-up of inventory to provide product for future construction activity. For the first six months of 2021, Adjusted EBITDA as a percent of revenue declined 10 basis points while revenue declined 40 basis points. An increase in average ASP for the first six months of 2021 mitigated the impact on revenue from lower sales volumes, and delivery costs were lower, as fewer ships were needed in our West Region to meet the lower customer demand.

Liquidity and Capital Resources

Our primary sources of liquidity are cash generated from operations, available cash and cash equivalents, and access to our asset-based revolving credit facility, which provides for borrowings of up to $300.0 million, subject to a borrowing base. As of June 30, 2021, we had $20.9 million of cash and cash equivalents and $214.7 million of available borrowing capacity under the Revolving Facility (as defined below), providing total available liquidity of $235.6 million.

The following key financial measurements reflect certain aspects of our financial condition:

($ in millions)	June 30, 2021		December 31, 2020
Cash and cash equivalents	$	20.9	$	11.1
Working capital	$	100.4	$	56.3
Total debt	$	789.1	$	702.4

Our primary liquidity needs over the next 12 months consist of (1) working capital requirements; (2) debt service obligations; (3) capital expenditures; and (4) payments related to strategic activity. Our primary portfolio strategy includes acquisitions in various regions and markets.

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Our working capital needs are typically at their lowest level in the first quarter, increase in the second and third quarters to fund increases in accounts receivable and inventories during those periods, and then decrease in the fourth quarter. Availability under the Revolving Facility is governed by a borrowing base primarily determined by our eligible accounts receivable, inventory, mixer trucks and machinery. Our borrowing base also typically declines during the first quarter due to lower accounts receivable balances as a result of normal seasonality of our business caused by winter weather.

The projection of our cash needs is based upon many factors, including without limitation, our expected volume, pricing, cost of materials and capital expenditures. Based on our projected cash needs, we believe that cash on hand, availability under the Revolving Facility, and cash generated from operations will provide us with sufficient liquidity in the ordinary course of business, not including potential acquisitions. To help mitigate the impact of the COVID-19 pandemic on our cash needs, we initiated business contingency planning and will continue to adjust those plans as needed. If, however, availability under the Revolving Facility, cash on hand and our operating cash flows are not adequate to fund our operations, we would need to obtain other equity or debt financing or sell assets to provide additional liquidity.

The principal factors that could adversely affect the amount of our internally generated funds include:

•deterioration of revenue, due to lower volume and/or pricing, because of weakness in the markets in which we operate or due to COVID-19 operating restrictions;

•declines in gross margins due to shifts in our product mix, increases in fixed or variable costs or the impact of COVID-19;

•any deterioration in our ability to collect our accounts receivable from customers as a result of weakening in construction demand or payment difficulties experienced by our customers, including from COVID-19;

•any further COVID-19 impacts to our business; and

•inclement weather beyond normal patterns that could reduce our sales volumes.

Cash Flows

	Six Months Ended June 30,
($ in millions)	2021		2020
Net cash provided by (used in):
Operating activities	$	4.4	$	84.1
Investing activities	(43.2)		(154.1)
Financing activities	48.7		46.9
Effect of exchange rates on cash and cash equivalents	(0.1)		—
Net increase (decrease) in cash and cash equivalents	$	9.8	$	(23.1)

Our net cash provided by operating activities generally reflects the cash effects of transactions and other events used in the determination of net income or loss, including non-controlling interest.  Overall, the decline in cash generated from operations was driven primarily by the timing impacts of certain vendor payments, inclement weather and COVID-19 on our operations, and higher payments of incentive compensation.

In addition to purchases of machinery, equipment, mixer trucks and vehicles to service our business in both periods, investing activities in the six months ended June 30, 2021 included the $28.7 million Orca Acquisition and the $8.2 million Stockton Acquisition. Investing activities in the six months ended June 30, 2020 included $140.2 million for the acquisition of a sand and gravel products producer on Long Island in New York.

For the year ending December 31, 2021, we continue to expect to invest (excluding acquisitions such as the Stockton Acquisition and the Orca Acquisition) between $40 million and $50 million in capital expenditures, including expenditures financed through finance leases. Certain capital expenditures may be subject to approvals as provided for in the Merger Agreement. We continue to monitor the COVID-19 pandemic and related economic repercussions for consideration of our capital expenditure levels. Through August 5, 2021, we have invested $36.9 million in current year acquisitions.

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Financing activities during the six months ended June 30, 2021 included $296.2 million of net proceeds from our Term Loans issuance, redemption of $200.0 million of our 2024 Notes including a $3.2 million redemption premium (see discussion below), $3.0 million of net repayments under our Revolving Facility (as defined below) to operate our business and fund acquisitions and investments in property, plant and equipment. During the six months ended June 30, 2021, we made payments of $17.6 million primarily related to our finance leases and promissory notes and paid $8.2 million for contingent and deferred consideration obligations. Financing activities during the first six months of 2020 included $56.5 million of net borrowings under our Revolving Facility and $14.5 million of financing proceeds primarily for our Texas greenfield aggregates operation. In addition, during the first six months of 2020, we made payments of $10.8 million primarily related to our finance leases and promissory notes and paid $9.9 million for contingent and deferred consideration obligations. Cash provided by financing activities in the first six months of 2020 benefited from the deferral of $8.4 million of promissory note and finance lease payments that were deferred to mitigate the cash flow impact from the COVID-19 pandemic.

The discussion that follows provides a description of our arrangements relating to our outstanding indebtedness.

Asset Based Revolving Credit Facility (“Revolving Facility”)

We have a Revolving Facility with certain financial institutions named therein as lenders and Bank of America, N.A., as agent for the lenders that provides for up to $300.0 million of revolving borrowings. The Revolving Facility also permits the incurrence of other secured indebtedness not to exceed certain amounts. The Revolving Facility provides for swingline loans up to a $15.0 million sublimit and letters of credit up to a $50.0 million sublimit. Loans under the Revolving Facility are in the form of either base rate loans or the London Interbank Offered Rate (“LIBOR”) loans denominated in U.S. dollars.

On June 25, 2021, we and certain of our subsidiaries, as co-borrowers and as guarantors, entered into the Fourth Amended and Restated Loan Security Agreement (the “Fourth Loan Agreement”), which amended and restated the Third Amended and Restated Loan and Security Agreement, dated as of August 31, 2017 (the “Third Loan Agreement”). Among other things, the Fourth Loan Agreement extended the maturity date to June 25, 2026 and amended certain terms of the Third Loan Agreement, including, without limitation, permitting the incurrence of the loans under the Term Loan Agreement (as defined below). In connection with entering into the Fourth Loan Agreement, we incurred $1.5 million of debt issuance costs.

The obligations under the Fourth Loan Agreement are secured by first priority security interests in accounts receivable, inventory and certain other personal property of the Company and its subsidiaries (the “ABL Collateral”) and second priority liens on and security interests in certain real property of the Company's subsidiaries and certain personal property of the Company and its subsidiary guarantors that is not ABL Collateral (the “Term Loan Collateral”).

Our actual maximum credit availability under the Revolving Facility varies from time to time and is determined by calculating the value of our eligible accounts receivable, inventory, mixer trucks and machinery, minus reserves imposed by the Lenders and other adjustments, as specified in the Fourth Loan Agreement. Our availability under the Revolving Facility at June 30, 2021 was $214.7 million.

The Fourth Loan Agreement contains usual and customary covenants including, but not limited to, restrictions on our, our co-borrower subsidiaries', and our guarantor subsidiaries' ability to consolidate or merge; substantially change the nature of our business; sell, lease or otherwise transfer any of our assets; create or incur indebtedness; create liens; pay dividends or make other distributions; make loans; prepay certain indebtedness; and make investments or acquisitions. The covenants are subject to certain exceptions as specified in the Fourth Loan Agreement. The Fourth Loan Agreement also requires that we, upon the occurrence of certain events, maintain a fixed charge coverage ratio of at least 1.0 to 1.0 for each period of 12 calendar months. As of June 30, 2021, we were in compliance with all covenants under the Fourth Loan Agreement.

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Term Loans

On June 25, 2021, we entered into a secured term loan agreement (the “Term Loan Agreement”) with certain subsidiaries, as guarantors, JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and the lenders and other named parties. The Term Loan Agreement provides for $300.0 million in aggregate principal amount of term loans (the “Term Loans”), which will mature on June 25, 2028. In connection with entering into the Term Loan Agreement, we incurred $4.6 million of debt issuance costs. Proceeds of the Term Loans will be used for general corporate purposes, including repayment of certain borrowings under the Fourth Loan Agreement and redemption of the Company's 6.375% senior unsecured notes due 2024 (the “2024 Notes”), as further discussed below.

The Term Loans bear interest at the Company's option of either: (1) the LIBOR (subject to a floor of 0.50%) plus a margin of 2.75% or (2) a base rate (which is equal to the greatest of prime rate, the Federal Reserve Bank of New York effective rate plus 0.50% and LIBOR plus 1.00%, and is subject to a floor of 1.50%) plus a margin of 1.75%. Additionally, the Term Loans were issued at a price of 99.75%. The Term Loans are secured by a first priority lien on and security interest in the Term Loan Collateral and a second priority security interest in the ABL Collateral. The Term Loan Agreement contains customary representations, warranties, covenants and events of default, but does not contain any financial maintenance covenants.

Termination of Delayed Draw Term Loan Facility

On June 25, 2021, in connection with entering into the Term Loan Agreement, we terminated the Credit and Guaranty Agreement, dated as of April 1, 2020, among the Company, certain subsidiaries as guarantors, Bank of America, N.A., as administrative agent and collateral agent, the lenders and other parties named therein (the “Delayed Draw Term Loan Agreement”). There were no outstanding borrowings under the Delayed Draw Term Loan at the time of termination. The Delayed Draw Term Loan was secured by a first priority lien on and security interest in the Term Loan Collateral. During the three months ended June 30, 2021, we incurred a $2.3 million pre-tax loss on the Delayed Draw Term Loan termination due to write-off of unamortized debt issuance costs.

Redemption of 2024 Notes

On June 26, 2021, we redeemed all of the $200.0 million outstanding 2024 Notes, at a price of 101.594% of the principal amount plus accrued, unpaid interest. During the three months ended June 30, 2021, we incurred a $3.1 million pre-tax loss on this redemption, which included the redemption premium of $3.2 million and a $1.4 million write-off of unamortized debt issuance costs, net of $1.5 million of unamortized issuance premium.

Senior Unsecured Notes

At June 30, 2021, we had outstanding $400.0 million aggregate principal amount of 5.125% senior unsecured notes due 2029 (“2029 Notes”).

The 2029 Notes are governed by the Indenture dated as of September 23, 2020, among U.S. Concrete, Inc. (the “Issuer”), the subsidiary guarantors party thereto and U.S. Bank National Association, as trustee (the “2029 Indenture”). The 2029 Indenture contains customary covenants, including negative covenants that restrict our ability and our restricted subsidiaries ability to engage in certain transactions. The 2029 Notes accrue interest at a rate of 5.125% per annum, which is payable on March 1 and September 1 of each year. The 2029 Notes mature on March 1, 2029 and are redeemable at our option prior to maturity at prices specified in the 2029 Indenture.

The 2029 Notes are guaranteed on a full and unconditional senior unsecured basis by each of the Issuer's restricted subsidiaries (each, a “Guarantor Subsidiary,” and collectively, the “Guarantor Subsidiaries”) that guarantee any obligations under the Revolving Facility and certain of the Issuer's other indebtedness or certain indebtedness of the Issuer's restricted subsidiaries (other than a foreign subsidiary or domestic subsidiary thereof that guarantees only indebtedness incurred by a foreign subsidiary or a domestic subsidiary thereof). Each Guarantor Subsidiary is directly or indirectly 100% owned by the Issuer. The guarantees are joint and several. The Issuer does not have any independent assets or operations. There are no significant restrictions in the 2029 Indenture on the ability of the Guarantor Subsidiaries to make distributions to the Issuer. The 2029 Notes are not guaranteed by any of the Issuer's direct or indirect foreign subsidiaries (or any domestic subsidiaries of any such foreign subsidiaries), U.S. Virgin Islands subsidiaries or domestic subsidiaries that are not wholly owned (collectively, the “Non-Guarantor Subsidiaries”).

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The 2029 Notes and the guarantees thereof are effectively subordinated to all of the Issuer's and the Guarantor Subsidiaries' existing and future secured obligations, including obligations under the Revolving Facility, the Term Loans, our finance leases and our promissory notes, to the extent of the value of the collateral securing such obligations; senior in right of payment to any of our and the Guarantor Subsidiaries' future subordinated indebtedness; pari passu in right of payment with any of our and the Guarantor Subsidiaries' existing and future senior indebtedness, including the Issuer's and the Guarantor Subsidiaries' obligations under the Revolving Facility, the Term Loans and our finance leases; and structurally subordinated to all existing and future indebtedness and other claims and liabilities, including trade payables and preferred stock, of any Non-Guarantor Subsidiaries.

Other Debt

We have financing agreements with various lenders primarily for the purchase of mixer trucks and other machinery and equipment with $95.8 million of remaining principal as of June 30, 2021.

For additional information regarding our arrangements relating to outstanding indebtedness, see the information set forth in Note 5, “Debt” to our condensed consolidated financial statements included in this report.

Inflation

We experienced minimal increases in operating costs during the second quarter of 2021 related to inflation. However, in non-recessionary conditions, cement prices and certain other raw material prices, including aggregates, have generally risen faster than regional inflationary rates. When these price increases have occurred, we have generally been able to mitigate the cost increases with price increases we obtain for selling our products. Cement supply in Texas has been disrupted by temporary closures of certain cement producers' plants. As a result, our cement supply has been constrained, and cement prices began to rise in March 2021. We implemented price increases in April 2021 and will continue to do so as needed to help mitigate the impact of these increases.

Critical Accounting Policies

We prepared the preceding discussion based on the accompanying interim unaudited condensed consolidated financial statements, which have been prepared in accordance with U.S. GAAP. Such preparation of financial statements requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Estimates are based on historical experience, currently available information and various other assumptions that we believe to be reasonable under the circumstances. These estimates form the basis for making judgments about the carrying values of assets and liabilities that are not readily available from other sources. Actual results could differ from those estimates. We described our critical accounting policies in Item 7 of Part II of our 2020 10-K. Our critical accounting policies involve the use of estimates in the recording of business combinations, goodwill and intangible assets and any related impairment, accruals for self-insurance, accruals for income taxes, and assessing impairment of long-lived assets. See Note 1, “Organization and Summary of Significant Accounting Policies” to our condensed consolidated financial statements included in Item 8 of Part II of the 2020 10-K for a discussion of our critical and significant accounting policies.

27

CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

Certain statements and information in this report may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements concerning plans, objectives, goals, projections, strategies, future events or performance, and underlying assumptions and other statements, which are not statements of historical facts. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “intend,” “should,” “expect,” “plan,” “target,” “anticipate,” “believe,” “estimate,” “outlook,” “predict,” “potential,” or “continue,” the negative of such terms or other comparable terminology. These forward-looking statements are based on our current expectations and beliefs concerning future developments and their potential effect on us. While management believes that these forward-looking statements are reasonable as and when made, there can be no assurance that future developments affecting us will be those that we anticipate. All discussions concerning our expectations for future operating results are based on our forecasts for our existing operations and do not include the potential impact of any future acquisitions. Our forward-looking statements involve significant risks and uncertainties (some of which are beyond our control) and assumptions that could cause actual results to differ materially from our historical experience and our present expectations or projections.

Important factors that could cause actual results to differ materially from those in the forward-looking statements include, but are not limited to, those summarized below:

•the occurrence of any event, change, or other circumstances that could give rise to the termination of the Merger Agreement;

•the inability to obtain the requisite shareholder approval for the proposed Merger or the failure to satisfy other conditions to completion of the proposed Merger, including the receipt of regulatory approvals;

•risks that the proposed Merger disrupts our current plans and operations;

•the amount of the costs, fees, and expenses and charges related to the Merger;

•the results of litigation related to the Merger;

•the expected timing and anticipated closing of the Merger,

•general economic and business conditions, which will, among other things, affect demand for commercial and residential construction;

•our ability to successfully implement our operating strategy;

•our ability to successfully identify, manage, and integrate acquisitions;

•governmental requirements and initiatives, including those related to mortgage lending, financing or deductions, funding for public or infrastructure construction, land usage, and environmental, health, and safety matters;

•seasonal and inclement weather conditions, which impede the placement of ready-mixed concrete;

•the cyclical nature of, and changes in, the real estate and construction markets, including pricing changes by our competitors;

•our ability to maintain favorable relationships with third parties who supply us with equipment and essential supplies;

•our ability to retain key personnel and maintain satisfactory labor relations;

•disruptions, uncertainties or volatility in the credit markets that may limit our, our suppliers' and our customers' access to capital;

•product liability, property damage, results of litigation and other claims and insurance coverage issues;

•our substantial indebtedness and the restrictions imposed on us by the terms of our indebtedness;

•the effects of currency fluctuations on our results of operations and financial condition;

•the length and severity of the COVID-19 pandemic;

•the pace of recovery following the COVID-19 pandemic;

•our ability to implement cost containment strategies; and

•the adverse effects of the COVID-19 pandemic on our business, the economy and the markets we serve.

For additional information regarding known material factors that could cause our actual results to differ from our projected results, please see “Risk Factors” in Item 1A of Part I of our 2020 10-K and “Risk Factors” in Item 1A of Part II of our subsequent quarterly reports on Form 10-Q.

Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statements after the date they are made, whether as a result of new information, future events or otherwise, except as required by federal securities laws.

28

Item 3. Quantitative and Qualitative Disclosures About Market Risk

There have been no material changes from the information previously reported under Part II, Item 7A of our 2020 10-K.

Item 4.     Controls and Procedures

Acquisition

We are in the process of integrating Sugar City Building Materials Co. (“Sugar City”), which we acquired in November 2020. Management’s assessment and conclusion on the effectiveness of the Company’s disclosure controls and procedures as of June 30, 2021 excludes an assessment of the internal control over financial reporting related to Sugar City. Sugar City represented 0.3% of our consolidated total assets and 0.3% of our consolidated revenue included in our condensed consolidated financial statements as of and for the six months ended June 30, 2021.

Disclosure Controls and Procedures

Based on their evaluation of our disclosure controls and procedures (as defined in Rules 13a-15 and 15d-15 under the Securities Exchange Act of 1934 (the “Exchange Act”)) as of the end of the period covered by this report, our principal executive officer and principal financial officer concluded our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and is accumulated and communicated to management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable assurance of achieving their control objectives.

Changes in Internal Control over Financial Reporting

As part of our ongoing integration activities related to the Sugar City acquisition, we continue to implement our controls and procedures and augment our company-wide controls to reflect the risks inherent in the acquisition. Throughout the integration process, we monitor these efforts and take corrective action as needed to reinforce the application of our controls and procedures. Other than the foregoing, during the quarter ended June 30, 2021, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

29

PART II – OTHER INFORMATION

Item 1. Legal Proceedings

The information set forth under the headings “Legal Proceedings” and “Litigation Related to the Vulcan Merger” in Note 9, “Commitments and Contingencies” to our condensed consolidated financial statements included in Part I of this report is incorporated by reference into this Item 1.

With respect to administrative or judicial proceedings arising under any federal, state, or local provisions that have been enacted or adopted regulating the discharge of materials into the environment or primarily for the purpose of protecting the environment, we have determined that we will disclose any such proceeding if we reasonably believe such proceeding will result in monetary sanctions, exclusive of interest and costs, of at least $1.0 million. We believe that this threshold is reasonably designed to result in disclosure of environmental proceedings that are material to our business or financial condition. Applying this threshold, there were no environmental matters to disclose for this period.

Item 1A. Risk Factors

There have been no material changes in our risk factors as previously disclosed in “Risk Factors” in Item 1A of Part I of the 2020 10-K other than shown below related to the potential Merger. Readers should carefully consider the factors discussed in “Risk Factors” in Item 1A of Part 1 of the 2020 10-K, which could materially affect our business, financial condition or future results. The risks described in the 2020 10-K are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

The announcement and pendency of the Merger Agreement could have an adverse effect on our business.

On June 6, 2021, we entered into the Merger Agreement with Vulcan, and Grizzly Merger Sub, pursuant to which, upon the terms and subject to the conditions set forth in the Merger Agreement, Grizzly Merger Sub will merge with and into the Company, with the Company surviving the Merger and becoming a wholly owned subsidiary of Vulcan.

We have scheduled a special meeting of our stockholders for August 16, 2021, so they can vote on whether to adopt the Merger Agreement. Upon the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger, except as otherwise provided in the Merger Agreement, each share of our common stock issued and outstanding immediately prior to the effective time of the Merger will be canceled and automatically converted into the right to receive $74.00 in cash, without interest.

Uncertainty about the effect of the proposed Merger on our employees, customers, and suppliers may have an adverse effect on our business and operations that may be material to our company. There may be adverse effects on our ability to attract, recruit, retain and motivate current and prospective employees who maybe uncertain about their future roles following completion of the merger, and the possibility that our employees could lose productivity as a result of the uncertainty regarding their employment following the Merger. Any loss or distraction of such employees could have an adverse effect on our business and operations. In addition, we have diverted, and will continue to divert, significant management attention and resources towards the completion of the Merger, which could adversely affect our business and operations.

Our customers may experience uncertainty associated with the Merger, including with respect to concerns about possible changes to our products, services or policies. Similarly, our suppliers may experience uncertainty associated with the Merger, including with respect to current or future business relationships with us. Uncertainty may cause customers to refrain from purchasing our products and services, and suppliers may seek to change existing business relationships, which could result in an adverse effect on our business, operations, and financial condition in a way that may be material to our company.

Pursuant to the terms of the Merger Agreement, we are subject to certain restrictions on the conduct of our business, including the ability in certain cases to enter into contracts, acquire or dispose of assets, incur indebtedness, or incur capital expenditures, until the Merger becomes effective or the Merger Agreement is terminated. These restrictions may prevent us from taking actions with respect to our business that we may consider advantageous and result in our inability to respond effectively to competitive pressures and industry developments, and may otherwise harm our business and operations.

30

The Merger is subject to receipt of approval from our stockholders as well as the satisfaction of other closing conditions in the Merger Agreement.

The Merger Agreement contains a number of customary conditions to complete the Merger, including, (1) the approval of the Merger by the holders of a majority of the outstanding shares of common stock, (2) the absence of any law or injunction prohibiting the Merger, (3) the expiration or termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act, (4) subject to certain exceptions, the accuracy of the other party’s representations and warranties, (5) the absence of a material adverse effect with respect to the Company, and (6) performance in all material respects by each party of its obligations under the Merger.

We can provide no assurance that all required approvals will be obtained or that all closing conditions will be satisfied, and, if all required approvals are obtained and the closing conditions are satisfied, we can provide no assurance as to the terms, conditions and timing of such approvals or the timing of the completion of the Merger. Any delay in completing the Merger could cause us not to realize some or all of the benefits that we expect to achieve if the Merger is successfully completed within its expected timeframe.

The failure to complete the Merger could adversely affect our business, financial condition, operating results, and stock price.

Completion of the Merger is subject to certain conditions beyond our control that may prevent, delay, or otherwise adversely affect its completion in a material way, including the expiration or termination of applicable waiting periods under antitrust and competition laws, and similar competition approvals or consents that must be obtained from regulatory entities in the United States. The process to obtain regulatory approvals could substantially delay, or prevent, the consummation of the Merger. There can be no assurance that these conditions to the completion of the merger will be satisfied in a timely manner or at all. If the Merger is not completed, our stock price could fall to the extent its current market price reflects an assumption that the Merger will be completed, and it is uncertain when, if ever, our stock price would return to the price at which our shares currently trade.

In addition, the Merger Agreement provides that we will be required to pay Vulcan Material Company a termination fee of $50 million in certain circumstances. Further, a failure to complete the Merger may result in negative publicity and a negative impression of us in the investment community and may necessitate us having to obtain additional financing, which may be unavailable on terms favorable to us, or at all. Any disruption to our business resulting from the announcement and pendency of the Merger and from intensifying competition from our competitors, including any adverse changes in our relationships with our customers, suppliers, and employees could continue or accelerate in the event of a failure to complete the Merger. We have been and may be subject to additional legal proceedings related to the transactions contemplated by the Merger Agreement. There can be no assurance that our business, these relationships, or our financial condition will not be adversely affected, as compared to the condition prior to the announcement of the Merger, if the Merger is not consummated.

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

The following table provides information with respect to our purchases of shares of our common stock during the three-month period ended June 30, 2021:

Calendar Month	Total Number of Shares Purchased (1)	Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares That May Yet Be Purchased Under Plans or Programs
April 1 - 30, 2021	—	$	—	—	$	—
May 1 - 31, 2021	49,372	55.60		—	—
June 1 - 30, 2021	24,614	73.48		—	—
Total	73,986	$	61.55	—	$	—

(1)Represents shares of our common stock acquired from employees who elected for us to make their required tax payments upon vesting of certain restricted shares by withholding a number of those vested shares having a value on the date of vesting equal to their tax obligations.

Item 4. Mine Safety Disclosures

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in Exhibit 95.1 to this report.

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Item 6. Exhibits

2.1*	—Agreement and Plan of Merger, dated as of June 6, 2021 by and among Vulcan Material Company, Grizzly Merger Sub I, Inc. and U.S. Concrete, Inc. (incorporated by reference to Exhibit 2.1 to the Company's Current Report on Form 8-K filed on June 7, 2021 (File No. 001-34530)).
3.1*	—Amended and Restated Certificate of Incorporation of U.S. Concrete, Inc. (incorporated by reference to Exhibit 1 to the Company's Registration Statement on Form 8-A/A filed on August 31, 2010 (File No. 000-26025)).
3.2*	—Third Amended and Restated By-Laws of U.S. Concrete, Inc. (incorporated by reference to Exhibit 2 to the Company's Registration Statement on Form 8-A/A filed on August 31, 2010 (File No. 000-26025)).
3.3*	—Amendment No. 1 to Third Amended and Restated Bylaws of U.S. Concrete, Inc. (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on November 20, 2015 (File No. 001-34530)).
10.1*	—Amendment to the U.S. Concrete, Inc. Long Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on May 14, 2021 (File No. 001-34530)).
10.2*	—Fourth Amended and Restated Loan and Security Agreement, dated June 25, 2021, by and among U.S. Concrete, Inc., certain of its subsidiaries parties thereto, certain lenders parties thereto, and Bank of America, N.A., as agent for the lenders (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K dated on June 25, 2021 (File No. 001-34530)).
10.3*	—Credit and Guaranty Agreement, dated June 25, 2021, among U.S. Concrete, Inc., the guarantors party thereto, the financial institutions from time to time parties thereto and JPMorgan Chase Bank, N.A., as administrative agent (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K dated on June 25, 2021 (File No. 001-34530)).
31.1	—Certification of Periodic Report pursuant to Rule 13a-14(a) and Rule 15d-14(a).
31.2	—Certification of Periodic Report pursuant to Rule 13a-14(a) and Rule 15d-14(a).
32.1	—Certification pursuant to 18 U.S.C. Section 1350.
32.2	—Certification pursuant to 18 U.S.C. Section 1350.
95.1	—Mine Safety Disclosures.
101.INS	—XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	—Inline XBRL Taxonomy Extension Schema Document.
101.CAL	—Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	—Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB	—Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	—Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104	—Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

* Incorporated by reference to the filing indicated.

33

SIGNATURE

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.

		U.S. CONCRETE, INC.
Date:	August 5, 2021	By:	/s/ Gibson T. Dawson
			Gibson T. Dawson
			Vice President, Corporate Controller and Chief Accounting Officer
			(Principal Accounting Officer)

34

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Ronnie Pruitt, certify that:

1.       I have reviewed this quarterly report on Form 10-Q of U.S. Concrete, Inc. for the quarterly period ended June 30, 2021;

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(s) 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(s) 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 (or persons performing the equivalent functions):

(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 5, 2021	By:	/s/ Ronnie Pruitt
			Ronnie Pruitt
			President and Chief Executive Officer
			(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, John E. Kunz, certify that:

1.       I have reviewed this quarterly report on Form 10-Q of U.S. Concrete, Inc. for the quarterly period ended June 30, 2021;

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(s) 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(s) 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 (or persons performing the equivalent functions):

(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 5, 2021	By:	/s/ John E. Kunz
			John E. Kunz
			Senior Vice President and Chief Financial Officer
			(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of U.S. Concrete, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2021 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Ronnie Pruitt, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 5, 2021	By:	/s/ Ronnie Pruitt
			Ronnie Pruitt
			President and Chief Executive Officer
			(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of U.S. Concrete, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2021 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, John E. Kunz, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 5, 2021	By:	/s/ John E. Kunz
			John E. Kunz
			Senior Vice President and Chief Financial Officer
			(Principal Financial Officer)

EX-95.1

Exhibit 95.1

Section 1503. Mine Safety Disclosures

On July 21, 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act, or the Act, was enacted. Section 1503 of the Act contains reporting requirements regarding mine safety. We are committed to providing a safe workplace for all of our employees, including those working at our quarries. The operation of our quarries is subject to regulation by the federal Mine Safety and Health Administration, or MSHA, under the Federal Mine Safety and Health Act of 1977. Set forth below is the required information regarding certain mining safety and health matters for the quarter ended June 30, 2021. In evaluating this information, consideration should be given to factors such as: (i) the number of citations and orders will vary depending on the size of the quarry, (ii) the number of citations issued will vary from inspector-to-inspector and mine-to-mine, and (iii) citations and orders can be contested and appealed, and in that process, may be reduced in severity and amount, and are sometimes dismissed. The table below includes references to specific sections of the Mine Act.

We are providing the information in the table by mine as that is how we manage and operate our business.

									(H)
	(A)	(B)	(C)	(D)	(E)	(F)		(G)	Pending
	Section	Section	Section	Section	Section	Proposed			Legal
Mine Name/ID	104 S&S	104(b)	104(d)	110(b)(2)	107(a)	Assessments		Fatalities	Action
Leon River / Proctor 4105206	-	-	-	-	-	-		-	-
Cox Bend Quarry / 4102977	-	-	-	-	-	-		-	-
Bronte Quarry / 4104210	-	-	-	-	-	-		-	-
Waurika Quarry / 3400362	-	-	-	-	-	$	250	-	-
Red River Quarry / 3401945	1	-	-	-	-	$	2,912	-	-
Ingram North Amarillo / 4103599	-	-	-	-	-	-		-	-
M&W Ranch / 4105430	-	-	-	-	-	-		-	-
Chatfield Plant / 4104209	-	-	-	-	-	$	125	-	-
Coram Materials / 3000794	-	-	-	-	-	$	875	-	-
Hamburg Quarry / 2800011	-	-	-	-	-	-		-	-
Glen Gardner Quarry / 2800009	1	-	-	-	-	-		-	-
Wantage Quarry / 2801035	-	-	-	-	-	-		-	-
Quinton Twp Pit / 2801014	-	-	-	-	-	-		-	-
Springfield Quarry / 5500002	-	-	-	-	-	-		-	-
Brookman Quarry / 5500008	-	-	-	-	-	-		-	-

(A)	The total number of violations of mandatory health or safety standards that could significantly and substantially contribute to the cause and effect of a coal or other mine safety or health hazard under section 104 of the Mine Safety and Health Act of 1977 (30 U.S.C. 814) for which the operator received a citation from the Mine Safety and Health Administration.
(B)	The total number of orders issued under section 104(b) of such Act (30 U.S.C. 814(b)).
(C)	The total number of citations and orders for unwarrantable failure of the mine operator to comply with mandatory health or safety standards under section 104(d) of such Act (30 U.S.C. 814(d)).
(D)	The total number of flagrant violations under section 110(b)(2) of such Act (30 U.S.C. 820(b)(2)).
(E)	The total number of imminent danger orders issued under section 107(a) of such Act (30 U.S.C. 817(a)).
(F)	The total dollar value of proposed assessments from the Mine Safety and Health Administration under such Act (30 U.S.C. 801 et seq.).
(G)	The total number of mining-related fatalities.
(H)	Any pending legal action before the Federal Mine Safety and Health Review Commission involving such coal or other mine.

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 26, 2021
Cover [Abstract]
Entity Central Index Key	0001073429
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-34530
Entity Registrant Name	U.S. CONCRETE, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0586680
Entity Address, Address Line One	331 N. Main Street,
Entity Address, City or Town	Euless
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	76039
City Area Code	817
Local Phone Number	835-4105
Title of 12(b) Security	Common Stock, par value $0.001
Trading Symbol	USCR
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		17,140,096

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 20.9	$ 11.1
Trade accounts receivable, net	193.5	212.5
Inventories	76.5	70.3
Other receivables, net	25.8	13.2
Prepaid expenses and other	9.1	11.1
Total current assets	325.8	318.2
Property, plant and equipment, net of accumulated depreciation, depletion and amortization of $395.3 as of June 30, 2021 and $360.2 as of December 31, 2020	806.8	788.2
Operating lease assets	73.2	76.1
Goodwill	238.0	238.2
Intangible assets, net of accumulated amortization of $102.1 as of June 30, 2021 and $97.5 as of December 31, 2020	60.0	70.9
Other assets	19.8	14.7
Total assets	1,523.6	1,506.3
Current liabilities:
Accounts payable	94.3	127.8
Accrued liabilities	75.6	86.1
Current maturities of long-term debt	40.8	33.7
Current operating lease liabilities	14.7	14.3
Total current liabilities	225.4	261.9
Long-term debt, net of current maturities	748.3	668.7
Long-term operating lease liabilities	62.5	65.5
Other long-term obligations and deferred credits	46.4	51.9
Deferred income taxes	61.3	56.6
Total liabilities	1,143.9	1,104.6
Commitments and contingencies (Note 9)
Equity:
Additional paid-in capital	381.4	363.8
Retained earnings	28.2	53.3
Treasury stock, at cost	(52.2)	(37.9)
Total shareholders' equity	357.4	379.2
Non-controlling interest	22.3	22.5
Total equity	379.7	401.7
Total liabilities and equity	$ 1,523.6	$ 1,506.3

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Property, plant and equipment, accumulated depreciation, depletion and amortization	$ 395.3	$ 360.2
Intangible assets, accumulated amortization	$ 102.1	$ 97.5

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 327.4	$ 322.7	$ 613.1	$ 657.1
Cost of goods sold excluding depreciation, depletion and amortization	259.4	250.1	492.5	524.0
Selling, general and administrative expenses	48.3	31.7	77.6	65.4
Depreciation, depletion and amortization	25.7	25.2	50.1	48.6
Change in value of contingent consideration	0.0	(5.8)	(0.1)	(5.5)
Gain on sale/disposal of assets and business, net	(0.1)	(0.1)	(1.6)	(0.1)
Operating income (loss)	(5.9)	21.6	(5.4)	24.7
Interest expense, net	10.3	11.4	20.7	22.8
Loss on extinguishment of debt	5.5	0.0	5.5	0.0
Other income, net	(0.5)	(0.6)	(0.9)	(1.2)
Income (loss) before income taxes	(21.2)	10.8	(30.7)	3.1
Income tax expense (benefit)	(0.7)	4.3	(5.4)	(0.6)
Net income (loss)	(20.5)	6.5	(25.3)	3.7
Amounts attributable to non-controlling interest	(0.2)	(0.1)	(0.2)	0.2
Net income (loss) attributable to U.S. Concrete	$ (20.3)	$ 6.6	$ (25.1)	$ 3.5
Earnings (loss) per share attributable to U.S. Concrete:
Basic earnings per share (in dollars per share)	$ (1.19)	$ 0.39	$ (1.49)	$ 0.21
Diluted earnings per share (in dollars per share)	$ (1.19)	$ 0.39	$ (1.49)	$ 0.21
Weighted average shares outstanding:
Basic (in shares)	17.0	16.6	16.9	16.6
Diluted (in shares)	17.0	16.6	16.9	16.6

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (25.3)	$ 3.7
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion and amortization	50.1	48.6
Loss on extinguishment of debt	5.5	0.0
Amortization of debt issuance costs	1.0	1.0
Change in value of contingent consideration	(0.1)	(5.5)
Gain on sale/disposal of assets and business, net	(1.6)	(0.1)
Deferred income taxes	5.8	2.6
Provision for doubtful accounts and customer disputes	1.0	1.0
Stock-based compensation	17.6	6.2
Other, net	1.0	(0.8)
Changes in assets and liabilities, excluding effects of acquisitions:
Accounts receivable	18.0	24.9
Inventories	(13.1)	1.7
Prepaid expenses and other current assets	(10.7)	(3.0)
Other assets and liabilities	(4.4)	2.7
Accounts payable and accrued liabilities	(40.4)	1.1
Net cash provided by operating activities	4.4	84.1
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(46.0)	(14.2)
Proceeds from sale of business and property, plant and equipment	3.0	0.3
Payments for acquisition of businesses	(0.2)	(140.2)
Net cash used in investing activities	(43.2)	(154.1)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolver borrowings	274.4	260.8
Repayments of revolver borrowings	(277.4)	(204.3)
Proceeds from issuance of term loans	296.2	0.0
Repayment of senior unsecured notes	(200.0)	0.0
Premium paid on early retirement of debt	(3.2)	0.0
Payments for acquisition-related liabilities	(8.2)	(9.9)
Payments for finance leases, promissory notes and other	(17.6)	(10.8)
Shares redeemed for employee income tax obligations	(14.3)	(1.2)
Proceeds from finance leases and other	0.0	14.5
Debt issuance costs	(1.2)	(2.2)
Net cash provided by financing activities	48.7	46.9
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	(0.1)	0.0
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	9.8	(23.1)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	11.1	40.6
CASH AND CASH EQUIVALENTS AT END OF PERIOD	20.9	17.5
Supplemental Disclosure of Cash Flow Information:
Net cash paid for interest	18.2	22.6
Net cash paid for (refund from) income taxes	1.8	(0.1)
Supplemental Disclosure of Non-cash Investing and Financing Activities:
Capital expenditures funded by finance leases and promissory notes	11.6	13.7
Net right-of-use assets obtained in exchange for operating lease liabilities	4.5	7.4
Acquisitions funded by deferred consideration	0.0	1.7
Transfer of non-controlling interest	$ 0.0	$ 3.3

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2021	Feb. 24, 2020
Coram Material Corp.
Accounts payable	$ 0.6	$ 0.6

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CONDENSED CONSOLIDATED STATEMENTS OF TOTAL EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Total Shareholders' Equity	Total Shareholders' Equity Cumulative Effect, Period of Adoption, Adjustment	Non-controlling Interest
BALANCE, beginning of period (in shares) at Dec. 31, 2019			16.7
BALANCE, beginning of period at Dec. 31, 2019	$ 369.6	$ (3.3)		$ 348.9	$ 31.1	$ (3.3)	$ (36.6)	$ 343.4	$ (3.3)	$ 26.2
Increase (Decrease) in Stockholders' Equity
Transfer of non-controlling interest				3.3				3.3		(3.3)
Stock-based compensation	2.6			3.7			(1.1)	2.6
Net income (loss)	(2.8)				(3.1)			(3.1)		0.3
BALANCE, end of period (in shares) at Mar. 31, 2020			16.7
BALANCE, end of period at Mar. 31, 2020	366.1			355.9	24.7		(37.7)	342.9		23.2
BALANCE, beginning of period (in shares) at Dec. 31, 2019			16.7
BALANCE, beginning of period at Dec. 31, 2019	369.6	$ (3.3)		348.9	31.1	$ (3.3)	(36.6)	343.4	$ (3.3)	26.2
Increase (Decrease) in Stockholders' Equity
Net income (loss)	3.7
BALANCE, end of period (in shares) at Jun. 30, 2020			16.7
BALANCE, end of period at Jun. 30, 2020	374.9			358.4	31.3		(37.9)	351.8		23.1
BALANCE, beginning of period (in shares) at Mar. 31, 2020			16.7
BALANCE, beginning of period at Mar. 31, 2020	366.1			355.9	24.7		(37.7)	342.9		23.2
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	2.3			2.5			(0.2)	2.3
Net income (loss)	6.5				6.6			6.6		(0.1)
BALANCE, end of period (in shares) at Jun. 30, 2020			16.7
BALANCE, end of period at Jun. 30, 2020	374.9			358.4	31.3		(37.9)	351.8		23.1
BALANCE, beginning of period (in shares) at Dec. 31, 2020			16.7
BALANCE, beginning of period at Dec. 31, 2020	401.7			363.8	53.3		(37.9)	379.2		22.5
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)			0.3
Stock-based compensation	(6.8)			2.9			(9.7)	(6.8)
Net income (loss)	(4.8)				(4.8)			(4.8)
BALANCE, end of period (in shares) at Mar. 31, 2021			17.0
BALANCE, end of period at Mar. 31, 2021	390.1			366.7	48.5		(47.6)	367.6		22.5
BALANCE, beginning of period (in shares) at Dec. 31, 2020			16.7
BALANCE, beginning of period at Dec. 31, 2020	401.7			363.8	53.3		(37.9)	379.2		22.5
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(25.3)
BALANCE, end of period (in shares) at Jun. 30, 2021			17.1
BALANCE, end of period at Jun. 30, 2021	379.7			381.4	28.2		(52.2)	357.4		22.3
BALANCE, beginning of period (in shares) at Mar. 31, 2021			17.0
BALANCE, beginning of period at Mar. 31, 2021	390.1			366.7	48.5		(47.6)	367.6		22.5
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)			0.1
Stock-based compensation	10.1			14.7			(4.6)	10.1
Net income (loss)	(20.5)				(20.3)			(20.3)		(0.2)
BALANCE, end of period (in shares) at Jun. 30, 2021			17.1
BALANCE, end of period at Jun. 30, 2021	$ 379.7			$ 381.4	$ 28.2		$ (52.2)	$ 357.4		$ 22.3

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BASIS OF PRESENTATION AND ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION AND ACCOUNTING POLICIES	BASIS OF PRESENTATION AND ACCOUNTING POLICIESThese unaudited condensed consolidated financial statements include the accounts of U.S. Concrete, Inc. and its subsidiaries (collectively, “we,” “us,” “our,” the “Company,” or “U.S. Concrete”) and were prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial statements. While these unaudited condensed consolidated financial statements reflect all normal recurring adjustments that are, in the opinion of management, necessary for fair presentation of the results of the interim period, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. Our unaudited condensed consolidated financial statements reflect estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues and expenses. Such estimates and assumptions affect, among other things, our goodwill and long-lived asset valuations; inventory valuation; assessment of the effective tax rate; valuation of deferred income taxes; valuation of liabilities for workers' compensation, automobile, and general liability; allowance for doubtful accounts; and measurement of cash bonus plans. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 10-K”). We use the same accounting policies in preparing quarterly and annual financial statements. Certain reclassifications have been made to prior year amounts to conform with the current year presentation. Unless otherwise noted, all amounts are presented in U.S. dollars. Certain computations may be impacted by the effect of rounding in this report. Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year primarily due to the impact of the coronavirus (“COVID-19”) pandemic, weather patterns and general economic conditions in our markets.

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ACQUISITIONS AND BUSINESS COMBINATIONS

6 Months Ended

Jun. 30, 2021

Business Combinations [Abstract]

ACQUISITIONS AND BUSINESS COMBINATIONS

ACQUISITIONS AND BUSINESS COMBINATIONS

Rail Terminal and Bulk Storage Facility

On April 20, 2021, we purchased a rail terminal and bulk storage facility for cementitious materials in Stockton, California for $8.2 million that is currently leased to and operated by a third party. We made this investment to increase the control and stability over our raw material supply chain to support our West Region's ready-mixed concrete business. We accounted for this purchase as an asset acquisition and recorded the assets in property, plant and equipment on our condensed consolidated balance sheets.

Property Royalty Agreement

On March 12, 2021, we acquired property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for $28.7 million (the “Orca Acquisition”). The Orca Acquisition had the effect of eliminating future royalty payments, which had previously been recognized in cost of goods sold excluding depreciation, depletion and amortization in our condensed consolidated statements of operations. We accounted for the Orca Acquisition as an asset acquisition and recorded the assets in property, plant and equipment on our condensed consolidated balance sheets.

Sugar City Building Materials Co.

On November 7, 2020, we acquired certain assets of Sugar City Building Materials Co. (the “Sugar City Acquisition”), which expanded our ready-mixed concrete operations in our West Region, for total cash consideration of $7.8 million. We accounted for the Sugar City Acquisition as a business combination. The assets acquired primarily included inventory and property, plant and equipment. The Sugar City Acquisition resulted in $2.1 million of goodwill, which is amortizable for tax purposes and has been allocated to our ready-mixed concrete segment because we expect to receive synergies in that segment. No pro forma information has been disclosed in these financial statements, as the operations of Sugar City Building Materials Co. for the period were not material to our revenue, net income or earnings per share.

Coram Materials Corp.

On February 24, 2020, we acquired the equity of Coram Materials Corp. and certain of its affiliates (collectively, “Coram Materials”). Coram Materials is a sand and gravel products provider located on Long Island in New York. This acquisition increased the vertical integration of our New York City operations.

The acquisition of the equity of Coram Materials (the “Coram Acquisition”) was accounted for as a business combination. We funded the initial cash purchase consideration with cash and borrowings under our Revolving Facility (as defined in Note 5). The combined assets acquired through the Coram Acquisition included an aggregates facility with 330 acres of land, including 180 mining acres containing approximately 41.9 million tons of in-place, proven and permitted aggregate reserves and approximately 7.5 million tons of in-place, proven, but unpermitted aggregate reserves. To effect this transaction, we incurred $0.6 million of transaction costs, which were included in selling and general administrative expenses in our condensed consolidated statements of operations for the six months ended June 30, 2020.

The total consideration for the Coram Acquisition and the amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the acquisition date were as follows:

($ in millions)	Coram Materials
Accounts receivable(1)	$	2.0
Inventory	10.0
Other current assets	0.3
Property, plant and equipment	130.9
Total assets acquired	143.2
Current liabilities	0.1
Other long-term liabilities	0.2
Total liabilities assumed	0.3
Total consideration (fair value)(2)	$	142.9

(1)     The aggregate fair value of the acquired accounts receivable approximated the aggregate gross contractual amount.

(2)     Consisted of a $140.2 million initial cash payment, a $1.7 million initial present value of deferred consideration, and a $1.6 million working capital adjustment paid in August 2020, less a $0.6 million settlement of accounts payable owed by the Company to Coram Materials at the acquisition date. The total amount of deferred consideration was $2.0 million, of which $1.0 million was paid in the six months ended June 30, 2021 and the remainder is due in February 2022.

Impact of Coram Acquisition

During the three months ended June 30, 2020, the Coram Materials business generated revenue of $7.0 million, including intersegment sales of $2.7 million, and generated operating income of $1.3 million. During the period from the acquisition date to June 30, 2020, the Coram Materials business generated revenue of $9.6 million, including intersegment sales of $3.7 million, and generated operating income of $1.1 million. The results of this acquired business are included in our aggregate products segment.

The pro forma consolidated financial results shown below represent our estimate of the Company's results of operations as if the Coram Acquisition had been completed on January 1, 2020.

($ in millions except per share)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Revenue	$	322.7	$	659.2
Net income attributable to U.S. Concrete	$	9.3	$	7.7
Earnings per share attributable to U.S. Concrete - basic	$	0.56	$	0.46
Earnings per share attributable to U.S. Concrete - diluted	$	0.56	$	0.46

The above pro forma results were prepared based on the historical U.S. GAAP results of the Company and the historical results of Coram Materials, based on data provided by the former owners. These results are not necessarily indicative of what the Company's actual results would have been had the Coram Acquisition occurred on January 1, 2020 and do not reflect any operational efficiencies or potential cost savings that may occur as a result of the consolidation of these operations.

The pro forma amounts above reflect the following adjustments:

($ in millions)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Decrease in cost of goods sold related to fair value increase in inventory	$	2.6	$	4.2
Increase in depreciation, depletion and amortization expense	—		(0.9)
Exclusion of buyer transaction costs	0.1		0.6
Exclusion of seller transaction costs	—		0.3
Increase in interest expense	—		(0.8)
Increase in income tax expense	—		(1.1)

Acquisition by Vulcan Materials Company

On June 6, 2021, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Vulcan Materials Company, a New Jersey corporation (“Vulcan”), and Grizzly Merger Sub I, Inc., a Delaware corporation and a wholly owned subsidiary of Vulcan (“Grizzly”). The Merger Agreement provides that, subject to its terms and conditions, Grizzly will merge with and into U.S. Concrete (the “Merger”), with U.S. Concrete surviving the Merger and becoming a wholly owned subsidiary of Vulcan.

Subject to the terms and conditions set forth in the Merger Agreement, at the time of the Merger (the “Effective Time”), each issued and outstanding share of common stock, par value $0.001 per share, of U.S. Concrete (“USCR Stock”) (other than such shares (i) owned by U.S. Concrete or any of its subsidiaries, Vulcan or Grizzly or any other wholly owned subsidiary of Vulcan or (ii) exercising dissenters rights in accordance with Section 262 of the General Corporation Law of the State of Delaware) will be converted into the right to receive $74.00 in cash, without interest. In addition, each restricted stock unit that is solely subject to time-based vesting requirements granted under the Company's Long Term Incentive Plan that is outstanding immediately prior to the Effective Time will fully vest and be converted into the right to receive $74.00 in cash (without interest and subject to applicable tax withholding). The Merger Agreement provides each of the Company and Vulcan with certain termination rights and, under certain circumstances, may require the Company or Vulcan to pay a $50.0 million termination fee.

To effect this transaction, we incurred $6.3 million of transaction costs, which were included in selling, general and administrative expenses in our condensed consolidated statements of operations for the three and six months ended June 30, 2021.

The transaction is expected to close in the second half of 2021 subject to the receipt of approvals by the Company's shareholders, regulatory approval and other customary closing conditions. If the Merger is consummated, USCR Stock will be delisted from Nasdaq and deregistered under the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

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ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES

6 Months Ended

Jun. 30, 2021

Credit Loss [Abstract]

ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES

ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES

($ in millions)
Balance, December 31, 2020	$	7.2
Provision for doubtful accounts and customer disputes	1.0
Uncollectible receivables written off, net of recoveries	(0.8)
Balance, June 30, 2021(1)	$	7.4

(1) Excludes $1.3 million of allowances for other receivables, which were included in other receivables, net, on our condensed consolidated balance sheets.

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INVENTORIES

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

($ in millions)	June 30, 2021		December 31, 2020
Raw materials(1)	$	67.6	$	64.4
Building materials for resale	6.4		4.1
Other	2.5		1.8
Total	$	76.5	$	70.3

(1) Additional inventory totaling $9.4 million as of June 30, 2021 and $2.5 million as of December 31, 2020 was classified as other assets, since we did not expect to sell it within one year following the respective balance sheet dates.

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DEBT

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

DEBT

DEBT

($ in millions)	June 30, 2021		December 31, 2020
5.125% senior unsecured notes due 2029(1)	$	400.0	$	400.0
6.375% senior unsecured notes due 2024 and unamortized premium(2)	—		201.8
Term loans(3)	300.0		—
Asset based revolving credit facility(4)	3.5		6.5
Delayed draw term loan facility(5)	—		—
Finance leases	85.4		87.9
Promissory notes	10.4		13.8
Debt issuance costs	(10.2)		(7.6)
Total debt	789.1		702.4
Less: current maturities	(40.8)		(33.7)
Long-term debt, net of current maturities	$	748.3	$	668.7

(1)    The effective interest rate for these notes was 5.25% as of both June 30, 2021 and December 31, 2020.

(2)    The effective interest rate for these notes was 6.56% as of December 31, 2020.

(3)    The effective interest rate for these loans was 3.25% as of June 30, 2021.

(4)    The interest rate for the revolving facility was 3.50% as of both June 30, 2021 and December 31, 2020.

(5) Terminated on June 25, 2021.

Asset Based Revolving Credit Facility

On June 25, 2021, we and certain of our subsidiaries, as co-borrowers and as guarantors, entered into the Fourth Amended and Restated Loan Security Agreement (the “Fourth Loan Agreement”) with certain financial institutions named therein as lenders and Bank of America, N.A., as agent for the lenders, which amended and restated the Third Amended and Restated Loan and Security Agreement, dated as of August 31, 2017 (the “Third Loan Agreement”). Among other things, the Fourth Loan Agreement provides for revolving commitments of $300.0 million (the “Revolving Facility”) and extended the maturity date to June 25, 2026. The Fourth Loan Agreement also amended certain terms of the Third Loan Agreement, including, without limitation, permitting the incurrence of the loans under the Term Loan Agreement (as defined below). In connection with entering into the Fourth Loan Agreement, we incurred $1.5 million of debt issuance costs.

The obligations under the Fourth Loan Agreement are secured by first priority security interests in accounts receivable, inventory and certain other personal property of the Company and its subsidiaries (the “ABL Collateral”) and second priority liens on and security interests in certain real property of the Company's subsidiaries and certain personal property of the Company and its subsidiary guarantors that is not ABL Collateral (the “Term Loan Collateral”).

As of June 30, 2021, we had $1.1 million of undrawn standby letters of credit under our Revolving Facility. Loans under the Revolving Facility are in the form of either base rate loans or London Interbank Offered Rate (“LIBOR”) loans denominated in U.S. dollars.

Our actual maximum credit availability under the Revolving Facility varies from time to time and is determined by calculating the value of our eligible accounts receivable, inventory, mixer trucks and machinery, minus reserves imposed by the lenders and certain other adjustments. Our availability under the Revolving Facility at June 30, 2021 was $214.7 million. We are required, upon the occurrence of certain events, to maintain a fixed charge coverage ratio of at least 1.0 to 1.0 for each period of 12 calendar months. The Fourth Loan Agreement contains customary representations, warranties, covenants and events of default. As of June 30, 2021, we were in compliance with all covenants under the Fourth Loan Agreement.

Term Loans

On June 25, 2021, we entered into a secured term loan agreement (the “Term Loan Agreement”) with certain subsidiaries, as guarantors, JPMorgan Chase Bank, N.A., as administrative agent and collateral agent, and the lenders and other parties named therein. The Term Loan Agreement provides for $300.0 million in aggregate principal amount of term loans (the “Term Loans”), which will mature on June 25, 2028. In connection with entering into the Term Loan Agreement, we incurred $4.6 million of debt issuance costs. Proceeds of the Term Loans will be used for general corporate purposes, including repayment of certain borrowings under the Revolving Facility and to redeem the Company's 6.375% senior unsecured notes due 2024 (the “2024 Notes”), as further discussed below.

The Term Loans bear interest at our option of either: (1) LIBOR (subject to a floor of 0.50%) plus a margin of 2.75% or (2) a base rate (which is equal to the greatest of the prime rate, the Federal Reserve Bank of New York effective rate plus 0.50% and LIBOR plus 1.00%, and is subject to a floor of 1.50%) plus a margin of 1.75%. Additionally, the Term Loans were issued at a price of 99.75%. The Term Loans are secured by a first priority lien on and security interest in the Term Loan Collateral and a second priority security interest in the ABL Collateral. The Term Loan Agreement contains customary representations, warranties, covenants and events of default, but does not contain any financial maintenance covenants. As of June 30, 2021, we were in compliance with all covenants under the Term Loan Agreement.

Termination of Delayed Draw Term Loan Facility

On June 25, 2021, in connection with entering into the Term Loan Agreement, the Company terminated the Credit and Guaranty Agreement, dated as of April 17, 2020, among the Company, certain subsidiaries as guarantors, Bank of America, N.A., as administrative agent and collateral agent, the lenders and other parties named therein (the “Delayed Draw Term Loan Agreement”). The Delayed Draw Term Loan Agreement provided for a $178.7 million delayed draw term loan facility and was scheduled to mature on May 1, 2025. There were no outstanding borrowings under the Delayed Draw Term Loan Agreement. The Delayed Draw Term Loan was secured by a first priority lien on and secured interest in the Term Loan Collateral. During the three months ended June 30, 2021, we wrote off $2.3 million of unamortized debt issuance costs for this facility as a loss on extinguishment of debt.

Redemption of 6.375% Senior Unsecured Notes Due 2024

On June 26, 2021, we redeemed $200.0 million of outstanding 2024 Notes, which represented all outstanding 2024 Notes, at a price of 101.594% of the principal amount thereof plus accrued, unpaid interest. During the three months ended June 30, 2021, we incurred a $3.1 million pre-tax loss on the redemption of the 2024 Notes, which included the redemption premium of $3.2 million and a $1.4 million write-off of unamortized debt issuance costs, net of $1.5 million of unamortized issuance premium.

Fair Value of Debt

The fair value of our 5.125% senior unsecured notes due 2029 (the “2029 Notes”), which was estimated based on broker/dealer quoted market prices, was $436.6 million as of June 30, 2021. The carrying values of the outstanding amounts under our Term Loans, Revolving Facility and our operating and finance lease assets and liabilities approximate fair value due to the nature of the underlying collateral associated with the debt along with floating interest rates.

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INCOME TAXES

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

We recorded an income tax benefit of $0.7 million and $5.4 million for the three and six months ended June 30, 2021, respectively, using the discrete method. The discrete method treats the year-to-date period as if it was the annual period and determines the income tax expense or benefit on that basis. We have historically calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate for the full year to “ordinary” income or loss for the reporting period. However, for the three and six-month periods ended June 30, 2021, we determined that since minor changes in estimated “ordinary” income would result in significant changes in the estimated annual effective tax rate, our historical method would not provide a reliable estimate of income tax benefit. Our effective tax rate utilizing the discrete method differed substantially from the statutory tax rate primarily due to (1) significant Section 162(m) limitations on executive compensation and (2) our estimated interest expense limitation in accordance with the Tax Cuts and Jobs Act for which a full valuation allowance is anticipated. These differences reduced the income tax benefit recorded for the three and six months ended June 30, 2021, which was partially offset by excess tax benefits recognized for stock-based compensation.

We recorded an income tax expense of $4.3 million and an income tax benefit of $0.6 million for the three and six months ended June 30, 2020, respectively. For the six months ended June 30, 2020, our effective tax rate differed substantially from the federal statutory rate primarily due to additional tax benefits recognized related to the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”) enacted on March 27, 2020. The CARES Act, among other things, modified the business interest deduction limitation for tax years beginning in 2019 and 2020 from 30% of adjusted taxable income (“ATI”) to 50% of ATI. As a result, we recorded an additional tax benefit of $3.2 million in the six months ended June 30, 2020 to reflect the CARES Act change to our estimated interest limitation for the year ended December 31, 2019. This tax benefit was partially offset by a net tax shortfall for stock-based compensation.

Other receivables, net, on our condensed consolidated balance sheets included federal and state income tax receivables of $18.7 million as of June 30, 2021 and $5.8 million as of December 31, 2020.

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EARNINGS (LOSS) PER SHARE	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
EARNINGS (LOSS) PER SHARE	EARNINGS (LOSS) PER SHARE We excluded 0.5 million shares from the calculation of diluted earnings per share for both the three and six months ended June 30, 2021, and 0.8 million and 0.6 million shares for the three and six months ended June 30, 2020, respectively, because they were anti-dilutive. In all periods, these potentially dilutive shares related to our employee equity awards that vest either over time or upon the achievement of certain stock price targets.

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COMMITMENTS AND CONTINGENCIES

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Legal Proceedings

From time to time, and currently, we are subject to various claims and litigation brought by employees, customers and other third parties for, among other matters, personal injuries, property damages, product defects and delay damages that have, or allegedly have, resulted from the conduct of our operations. As a result of these types of claims and litigation, we must periodically evaluate the probability of damages being assessed against us and the range of possible outcomes. In each reporting period, if we determine that the likelihood of damages being assessed against us is probable, and if we believe we can estimate a range of possible outcomes, then we will record a liability. The amount of the liability will be based upon a specific estimate, if we believe a specific estimate to be likely, or it will reflect the low end of our range. Currently, there are no material legal proceedings pending against us.

From time to time, we may receive funding deficiency demands or withdrawal liability assessments related to multi-employer pension plans to which we contribute. We are unable to estimate the amount of any future demands or assessments because the actions of each of the other contributing employers in the plans has an effect on each of the other contributing employers, and the development of a rehabilitation plan by the trustees and subsequent submittal to and approval by the Internal Revenue Service is not predictable. Further, the allocation of fund assets and return assumptions by trustees are variable, as are actual investment returns relative to the plan assumptions. As of June 30, 2021, the Company had accrued $1.4 million for a withdrawal liability assessment related to a multi-employer pension plan in which the Company participated. The Company continues to dispute and negotiate the assessment.

As of August 5, 2021, there were no material product defect claims pending against us. Accordingly, our existing accruals for claims against us do not reflect any material amounts relating to product defect claims. While our management is not aware of any facts that would reasonably be expected to lead to material product defect claims against us that would have a material adverse effect on our business, financial condition or results of operations, it is possible that claims could be asserted against us in the future. We do not maintain insurance that would cover all damages resulting from product defect claims. In particular, we generally do not maintain insurance coverage for the cost of removing and rebuilding structures. In addition, our indemnification arrangements with contractors or others, when obtained, generally provide only limited protection against product defect claims. Due to inherent uncertainties associated with estimating unasserted claims in our business, we cannot estimate the amount of any future loss that may be attributable to such unasserted product defect claims related to ready-mixed concrete we have delivered prior to June 30, 2021.

We believe that the resolution of any litigation currently pending or threatened against us or any of our subsidiaries will not materially exceed our existing accruals for those matters. However, because of the inherent uncertainty of litigation, there is a risk that we may have to increase our accruals for one or more claims or proceedings to which we are a party as more information becomes available or proceedings progress, and any such increase in accruals could have a material adverse effect on our consolidated financial condition or results of operations. We expect in the future that we will, from time to time, be a party to litigation or administrative proceedings that arise in the normal course of our business.

We are subject to federal, state and local environmental laws and regulations concerning, among other matters, air emissions and wastewater discharge. Our management believes we are in substantial compliance with applicable environmental laws and regulations. From time to time, we receive claims from federal and state environmental regulatory agencies and entities asserting that we may be in violation of environmental laws and regulations. Based on experience and the information currently available, our management does not believe that these claims will materially exceed our related accruals. Despite compliance and experience, it is possible that we could be held liable for future charges, which might be material, but are not currently known to us or cannot be estimated by us. In addition, changes in federal or state laws, regulations or requirements, or discovery of currently unknown conditions, could require additional expenditures.

As permitted under Delaware law, we have agreements that provide indemnification of officers and directors for certain events or occurrences while the officer or director is or was serving at our request in such capacity. The maximum potential amount of future payments that we could be required to make under these indemnification agreements is not limited; however, we have a director and officer insurance policy that potentially limits our exposure and enables us to recover a portion of future amounts that may be paid. As a result of the insurance policy coverage, we believe the potential liability of these indemnification agreements is minimal. Accordingly, we have not recorded any liabilities for these agreements as of June 30, 2021.

We and our subsidiaries are parties to agreements that require us to provide indemnification in certain instances when we acquire businesses and real estate and in the ordinary course of business with our customers, suppliers, lessors and service providers. As of August 5, 2021, there were no material pending claims related to such indemnification.

Litigation Related to the Vulcan Merger

As of August 2, 2021, several separate actions (collectively, the “USCR Shareholder Actions”) have been filed in federal courts in New York, Delaware, New Jersey, and Pennsylvania by purported owners of U.S. Concrete common stock in connection with the transactions contemplated by the Merger Agreement: Stein v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 2, 2021); Waterman v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 8, 2021); Clark v. U.S. Concrete, Inc., et al. (D. Del July 9, 2021) (the “Clark Action”); Harris v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 13, 2021); Siddall v. U.S. Concrete, Inc., et al. (D.N.J. July 13, 2021); Whitfield v. U.S. Concrete, Inc., et al (E.D. Pa. July 13, 2021); Murphy v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 14, 2021); Kent v. U.S. Concrete, Inc., et al. (D.N.J. July 27, 2021) (the “Kent Action”); Wilhelm v. U.S. Concrete, Inc., et al. (D. Del July 28, 2021) (the “Wilhelm Action”); Brave v. U.S. Concrete, Inc., et al. (D.N.J. July 30, 2021) (the “Brave Action”) and Beauregard v. U.S. Concrete, Inc., et al. (S.D.N.Y. July 30, 2021) (the “Beauregard Action”). Each of the USCR Shareholder Actions names the Company and its directors as defendants and the Clark Action additionally names former Company director William J. Sandbrook as a defendant. Each of the USCR Shareholder Actions alleges, among other things, that the defendants violated federal securities laws by failing to disclose certain information in the Preliminary Proxy Statement, or, in the case of the Kent Action, Wilhelm Action, Brave Action and Beauregard Action, the Definitive Proxy Statement, on Schedule 14A filed by the Company (the “Proxy”) relating to the Company's financial forecasts and financial analyses conducted by the Company's financial advisors, Evercore Group, L.L.C. (“Evercore”) and BNP Paribas Securities Corp. (“BNP”). Certain of the USCR Shareholder Actions further allege that the defendants violated federal securities laws by failing to disclose certain information in the Proxy relating to the sales process and alleged conflicts of interests for management, financial projections for the Company provided to Evercore and BNP, and the data and inputs underlying the financial valuation analyses that support the fairness opinions of Evercore and BNP. The Clark Action further alleges that the Company's directors breached their fiduciary duties by entering into the Merger Agreement through an unfair process and for inadequate consideration. The plaintiffs in the USCR Shareholder Actions, among other things, seek to enjoin the transactions contemplated by the Merger Agreement, an award of attorneys’ fees and expenses and, in certain instances, damages in an unspecified amount.

The Company believes that the USCR Shareholder Actions are without merit, and the Company and the individual defendants intend to defend against the USCR Shareholder Actions; however, the Company cannot predict the amount of time and expense that will be required to resolve the USCR Shareholder Actions nor their outcomes.

The outcome of any pending or future litigation is uncertain. Such litigation if not resolved, could prevent or delay consummation of the Merger and result in substantial costs of the Company, including any costs associated with the indemnification of directors and officers. One of the conditions to the consummation of the Merger is that no governmental entity of competent jurisdiction (i) enacted, issued or promulgated any law or order that is in effect or (ii) issued or granted any order or injunction (whether temporary, preliminary or permanent) that is in effect, in each case which has the effect of restraining, enjoining or otherwise prohibiting the consummation of the Merger. Therefore, if a plaintiff were successful in obtaining an injunction prohibiting the consummation of the Merger, then such injunction may prevent the Merger from being consummated, or from being consummated within the expected time frame.

Insurance Programs

We maintain third-party insurance coverage against certain workers’ compensation, automobile and general liability risks. Under certain components of our insurance program, we share the risk of loss with our insurance underwriters by maintaining high deductibles subject to aggregate annual loss limitations. Generally, our insurance program deductible retentions per occurrence are $1.0 million to $2.0 million for workers’ compensation and general liability and $2.0 million to $10.0 million for automobile, although certain of our operations are self-insured for workers’ compensation. We record expenses for expected losses under the programs. The expected losses are determined using a combination of our historical loss experience and subjective assessments of our future loss exposure. The estimated losses are subject to uncertainty, including changes in claims reporting patterns, claims settlement patterns, judicial decisions, legislation and economic conditions. Although we believe that the estimated losses we have recorded are reasonable, significant differences related to the items noted above could materially affect our insurance obligations and future expense. The amount accrued for self-insurance claims, which is recorded in accrued liabilities and other long-term obligations and deferred credits, was $34.9 million as of June 30, 2021 and $33.0 million as of December 31, 2020.

Guarantees

In the normal course of business, we and our subsidiaries were contingently liable under $12.9 million in performance bonds that various contractors, states and municipalities have required as of June 30, 2021. The bonds principally relate to construction contracts, reclamation obligations, licensing and permitting. We and our subsidiaries have indemnified the underwriting insurance company against any exposure under the performance bonds. No material claims have been made against these bonds.

The Company has entered into standby letter of credit arrangements with various banks generally for the purpose of protection against insurance claims. As of June 30, 2021, the Company had a maximum financial exposure from these standby letters of credit totaling $25.9 million, of which $1.1 million reduces the Company's borrowing availability under its Revolving Facility. See Note 5 for additional information.

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SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

Our two reportable segments consist of ready-mixed concrete and aggregate products as described below.

Our ready-mixed concrete segment produces and sells ready-mixed concrete. This segment serves the following markets: Texas, California, New York City, New Jersey, Washington, D.C., Philadelphia, Oklahoma and the U.S. Virgin Islands. Our aggregate products segment produces crushed stone, sand and gravel and serves the markets in which our ready-mixed concrete segment operates as well as the West Coast and Hawaii. Other operations and products not associated with a reportable segment include our aggregates distribution operations, building materials stores, hauling operations, ARIDUS® Rapid Drying Concrete technology, brokered product sales and recycled aggregates.

Our customers are generally involved in the construction industry, which is a cyclical business and is subject to general and more localized economic conditions. In addition, our business is impacted by seasonal variations in weather conditions, which vary by regional market. Accordingly, demand for our products and services during the winter months is typically lower than in other months of the year because of inclement weather. Also, sustained periods of inclement weather and other adverse weather conditions could cause the delay of construction projects during other times of the year.

Our chief operating decision maker evaluates segment performance and allocates resources based on Adjusted EBITDA. We define Adjusted EBITDA as our net income, excluding the impact of income taxes, depreciation, depletion and amortization, net interest expense and certain other non-cash, non-recurring and/or unusual, non-operating items including, but not limited to: non-cash stock compensation expense, non-cash change in value of contingent consideration, acquisition-related costs, officer transition expenses, purchase accounting adjustments for inventory, and realignment initiative costs. Acquisition-related costs consist of fees and expenses for accountants, lawyers and other professionals incurred during the negotiation and closing of strategic acquisitions. Acquisition-related costs do not include fees or expenses associated with post-closing integration of strategic acquisitions. Many of the impacts excluded to derive Adjusted EBITDA are similar to those excluded in calculating our compliance with our debt covenants.

We consider Adjusted EBITDA to be an indicator of the operational strength and performance of our business. We have included Adjusted EBITDA because it is a key financial measure used by our management to (1) internally measure our operating performance and (2) assess our ability to service our debt, incur additional debt and meet our capital expenditure requirements.

Adjusted EBITDA should not be construed as an alternative to, or a better indicator of, operating income or loss, is not based on U.S. GAAP, and is not a measure of our cash flows or ability to fund our cash needs. Our measurements of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies and may not be comparable to similarly titled measures used in the agreements governing our debt.

We generally account for inter-segment sales at market prices. Corporate includes executive, administrative, financial, legal, human resources, business development and risk management activities that are not allocated to reportable segments and are excluded from segment Adjusted EBITDA. Eliminations include transactions to account for intercompany activity.

The following tables set forth certain financial information relating to our operations by reportable segment ($ in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Segment:
Ready-mixed concrete
Sales to external customers	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products
Sales to external customers	25.2		26.1		47.8		47.2
Freight revenue on sales to external customers	11.2		12.1		20.6		22.1
Intersegment sales	16.8		16.3		29.3		28.8
Total aggregate products	53.2		54.5		97.7		98.1
Total reportable segment revenue	327.5		326.9		613.5		662.7
Other products and eliminations	(0.1)		(4.2)		(0.4)		(5.6)
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1
Reportable Segment Adjusted EBITDA:
Ready-mixed concrete	$	30.9	$	38.1	$	55.8	$	69.8
Aggregate products	20.1		21.6		32.6		32.9
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Reconciliation of Total Reportable Segment Adjusted EBITDA  to Net Income (Loss):
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Other products and eliminations from operations	0.7		0.3		0.4		0.4
Corporate overhead	(32.6)		(16.3)		(46.3)		(31.9)
Depreciation, depletion and amortization for reportable segments	(24.2)		(23.7)		(47.1)		(45.5)
Interest expense, net	(10.3)		(11.4)		(20.7)		(22.8)
Loss on extinguishment of debt	(5.5)		—		(5.5)		—
Gain on sale of business	—		—		0.7		—
Realignment initiative costs	—		(0.8)		(0.4)		(0.8)
Change in value of contingent consideration for reportable segments	—		5.8		0.1		5.5
Purchase accounting adjustments for inventory	(0.5)		(2.6)		(0.6)		(4.2)
Corporate, other products and eliminations other income (loss), net	0.2		(0.2)		0.3		(0.3)
Income (loss) before income taxes	(21.2)		10.8		(30.7)		3.1
Income tax benefit (expense)	0.7		(4.3)		5.4		0.6
Net income (loss)	$	(20.5)	$	6.5	$	(25.3)	$	3.7

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Capital Expenditures:
Ready-mixed concrete(1)	$	10.4	$	4.3	$	11.5	$	8.7
Aggregate products(2)	2.9		2.5		34.0		5.3
Other products and corporate	0.3		0.1		0.5		0.2
Total capital expenditures	$	13.6	$	6.9	$	46.0	$	14.2

 (1)    Includes $8.2 million for the acquisition of the rail terminal and bulk storage facility for cementitious materials in Stockton, California for the three and six months ended June 30, 2021.

 (2)    Includes $28.7 million for the acquisition of the property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for the six months ended June 30, 2021.

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Product:
Ready-mixed concrete	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products	36.4		38.2		68.4		69.3
Other(1)	16.7		12.1		28.9		23.2
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1

 (1) Includes building materials, aggregates distribution, hauling and other.

	June 30, 2021		December 31, 2020
Identifiable Property, Plant and Equipment Assets:
Ready-mixed concrete	$	289.5	$	286.9
Aggregate products	495.6		478.1
Other products and corporate	21.7		23.2
Total identifiable assets	$	806.8	$	788.2

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STOCK-BASED COMPENSATION

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

We grant stock-based compensation awards to management, employees and non-employee directors under the U.S. Concrete, Inc. Long Term Incentive Plan (the “LTI Plan”), which was amended effective February 22, 2021 (the “Amendment”) to reserve an additional 880,000 shares of common stock for future issuance as equity-based awards to management and employees. Stock-based compensation may include stock options, stock appreciation rights, restricted stock awards, restricted stock units, cash-settled equity awards and performance awards. As of June 30, 2021, there were approximately 485,000 shares remaining for future issuance under the LTI Plan.

2021 Restricted Stock Unit Grant

On March 1, 2021, the Compensation Committee of the Board of Directors approved grants of 367,720 restricted stock units (the “2021 Grant”), conditioned upon obtaining stockholder approval of the Amendment. The Amendment was approved by the Company's stockholders at the Company's annual meeting on May 13, 2021, and the stockholder approval condition related to the 2021 Grant was satisfied. The 2021 Grant consisted of a 60% time-vested component that vests annually over a three-year period and a 40% stock performance hurdle component. The stock performance hurdle component triggers vesting upon our stock price reaching certain thresholds and may vest up to 200% of the target number of performance stock units granted.

The fair value of the 2021 Grant subject only to time-based vesting restrictions was determined based upon the $55.72 closing price of our common stock on the effective date of the grant. Based on stock performance following the contingent grant in March, the stock price thresholds for the target number of performance stock units had been met, and the fair value for that 40% portion of the 2021 Grant was also determined to be the $55.72 closing price of our common stock on the effective date of the grant, and the entire $8.1 million fair value for this portion of the target performance stock units was recognized during the three months ended June 30, 2021.

The fair value of the above-target portion of the 2021 Grant subject to additional market performance hurdles was determined utilizing a Monte Carlo financial valuation model. Compensation expense determined utilizing the Monte Carlo simulation is recognized regardless of whether the common stock reaches the defined thresholds, provided that each grantee remains an employee at the end of the expected term. The assumptions used to value the above-target portion of the 2021 Grant were as follows:

	Value
Expected term (years)(1)	0.3 - 0.4
Expected volatility	72.9%
Risk-free interest rate	0.3%
Vesting price(1)(2)	$69.23 - $74.95
Average grant date fair value per share	$49.65 - $47.97

(1)The $69.23 stock price hurdle for the 2021 Grant was met during June 2021, the related performance stock units vested, and the related expense that would have been recognized over 0.3 years was accelerated and recognized during the three months ended June 30, 2021.

(2)The vesting price is the average of the daily volume-weighted average share price of USCR Stock over any period of 20 consecutive trading days within the three-year period beginning on the date of grant, based on hurdles established on March 1, 2021.

Stock-Based Compensation Cost

We recognized stock-based compensation expense of $14.7 million and $17.6 million during the three and six months ended June 30, 2021, respectively, and $2.5 million and $6.2 million during the three and six months ended June 30, 2020, respectively. Stock-based compensation expense is reflected in selling, general and administrative expenses in our condensed consolidated statements of operations. Stock-based compensation expense was higher during the three and six months ended June 30, 2021 than it otherwise would have been due to the general increase in stock price from the date of the conditional grant through June 30, 2021, which resulted in higher fair value per share when valued as of the stockholder approval date, as well as the acceleration of expense when certain stock price thresholds were met and performance stock units vested.

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BASIS OF PRESENTATION AND ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION AND ACCOUNTING POLICIESThese unaudited condensed consolidated financial statements include the accounts of U.S. Concrete, Inc. and its subsidiaries (collectively, “we,” “us,” “our,” the “Company,” or “U.S. Concrete”) and were prepared in accordance with the rules and regulations of the Securities and Exchange Commission (the “SEC”) applicable to interim financial statements. While these unaudited condensed consolidated financial statements reflect all normal recurring adjustments that are, in the opinion of management, necessary for fair presentation of the results of the interim period, they do not include all of the information and footnotes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. Our unaudited condensed consolidated financial statements reflect estimates and assumptions made by management that affect the reported amounts of assets, liabilities, revenues and expenses. Such estimates and assumptions affect, among other things, our goodwill and long-lived asset valuations; inventory valuation; assessment of the effective tax rate; valuation of deferred income taxes; valuation of liabilities for workers' compensation, automobile, and general liability; allowance for doubtful accounts; and measurement of cash bonus plans. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes in our Annual Report on Form 10-K for the year ended December 31, 2020 (the “2020 10-K”). We use the same accounting policies in preparing quarterly and annual financial statements. Certain reclassifications have been made to prior year amounts to conform with the current year presentation. Unless otherwise noted, all amounts are presented in U.S. dollars. Certain computations may be impacted by the effect of rounding in this report. Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year primarily due to the impact of the coronavirus (“COVID-19”) pandemic, weather patterns and general economic conditions in our markets.

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ACQUISITIONS AND BUSINESS COMBINATIONS (Tables)

6 Months Ended

Jun. 30, 2021

Business Combinations [Abstract]

Schedule of Total Consideration and Amounts Related to the Assets Acquired and Liabilities Assumed

The total consideration for the Coram Acquisition and the amounts related to the assets acquired and liabilities assumed based on the estimated fair values as of the acquisition date were as follows:

($ in millions)	Coram Materials
Accounts receivable(1)	$	2.0
Inventory	10.0
Other current assets	0.3
Property, plant and equipment	130.9
Total assets acquired	143.2
Current liabilities	0.1
Other long-term liabilities	0.2
Total liabilities assumed	0.3
Total consideration (fair value)(2)	$	142.9

(1)     The aggregate fair value of the acquired accounts receivable approximated the aggregate gross contractual amount.

(2)     Consisted of a $140.2 million initial cash payment, a $1.7 million initial present value of deferred consideration, and a $1.6 million working capital adjustment paid in August 2020, less a $0.6 million settlement of accounts payable owed by the Company to Coram Materials at the acquisition date. The total amount of deferred consideration was $2.0 million, of which $1.0 million was paid in the six months ended June 30, 2021 and the remainder is due in February 2022.

Schedule of Unaudited Pro Forma Information

The pro forma consolidated financial results shown below represent our estimate of the Company's results of operations as if the Coram Acquisition had been completed on January 1, 2020.

($ in millions except per share)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Revenue	$	322.7	$	659.2
Net income attributable to U.S. Concrete	$	9.3	$	7.7
Earnings per share attributable to U.S. Concrete - basic	$	0.56	$	0.46
Earnings per share attributable to U.S. Concrete - diluted	$	0.56	$	0.46

Schedule of Adjustments Reflected in Pro Forma Net Income (Loss) and Net Income (Loss) Per Share Amounts

The pro forma amounts above reflect the following adjustments:

($ in millions)	Three Months Ended  June 30, 2020		Six Months Ended June 30, 2020
Decrease in cost of goods sold related to fair value increase in inventory	$	2.6	$	4.2
Increase in depreciation, depletion and amortization expense	—		(0.9)
Exclusion of buyer transaction costs	0.1		0.6
Exclusion of seller transaction costs	—		0.3
Increase in interest expense	—		(0.8)
Increase in income tax expense	—		(1.1)

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ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES (Tables)

6 Months Ended

Jun. 30, 2021

Credit Loss [Abstract]

Allowance for Doubtful Accounts and Customer Disputes

($ in millions)
Balance, December 31, 2020	$	7.2
Provision for doubtful accounts and customer disputes	1.0
Uncollectible receivables written off, net of recoveries	(0.8)
Balance, June 30, 2021(1)	$	7.4

(1) Excludes $1.3 million of allowances for other receivables, which were included in other receivables, net, on our condensed consolidated balance sheets.

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INVENTORIES (Tables)

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventories

($ in millions)	June 30, 2021		December 31, 2020
Raw materials(1)	$	67.6	$	64.4
Building materials for resale	6.4		4.1
Other	2.5		1.8
Total	$	76.5	$	70.3

(1) Additional inventory totaling $9.4 million as of June 30, 2021 and $2.5 million as of December 31, 2020 was classified as other assets, since we did not expect to sell it within one year following the respective balance sheet dates.

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DEBT (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Debt and Capital Leases

($ in millions)	June 30, 2021		December 31, 2020
5.125% senior unsecured notes due 2029(1)	$	400.0	$	400.0
6.375% senior unsecured notes due 2024 and unamortized premium(2)	—		201.8
Term loans(3)	300.0		—
Asset based revolving credit facility(4)	3.5		6.5
Delayed draw term loan facility(5)	—		—
Finance leases	85.4		87.9
Promissory notes	10.4		13.8
Debt issuance costs	(10.2)		(7.6)
Total debt	789.1		702.4
Less: current maturities	(40.8)		(33.7)
Long-term debt, net of current maturities	$	748.3	$	668.7

(1)    The effective interest rate for these notes was 5.25% as of both June 30, 2021 and December 31, 2020.

(2)    The effective interest rate for these notes was 6.56% as of December 31, 2020.

(3)    The effective interest rate for these loans was 3.25% as of June 30, 2021.

(4)    The interest rate for the revolving facility was 3.50% as of both June 30, 2021 and December 31, 2020.

(5) Terminated on June 25, 2021.

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SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Schedule of Certain Financial Information Relating to Continuing Operations by Reportable Segment

The following tables set forth certain financial information relating to our operations by reportable segment ($ in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Segment:
Ready-mixed concrete
Sales to external customers	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products
Sales to external customers	25.2		26.1		47.8		47.2
Freight revenue on sales to external customers	11.2		12.1		20.6		22.1
Intersegment sales	16.8		16.3		29.3		28.8
Total aggregate products	53.2		54.5		97.7		98.1
Total reportable segment revenue	327.5		326.9		613.5		662.7
Other products and eliminations	(0.1)		(4.2)		(0.4)		(5.6)
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1
Reportable Segment Adjusted EBITDA:
Ready-mixed concrete	$	30.9	$	38.1	$	55.8	$	69.8
Aggregate products	20.1		21.6		32.6		32.9
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Reconciliation of Total Reportable Segment Adjusted EBITDA  to Net Income (Loss):
Total reportable segment Adjusted EBITDA	$	51.0	$	59.7	$	88.4	$	102.7
Other products and eliminations from operations	0.7		0.3		0.4		0.4
Corporate overhead	(32.6)		(16.3)		(46.3)		(31.9)
Depreciation, depletion and amortization for reportable segments	(24.2)		(23.7)		(47.1)		(45.5)
Interest expense, net	(10.3)		(11.4)		(20.7)		(22.8)
Loss on extinguishment of debt	(5.5)		—		(5.5)		—
Gain on sale of business	—		—		0.7		—
Realignment initiative costs	—		(0.8)		(0.4)		(0.8)
Change in value of contingent consideration for reportable segments	—		5.8		0.1		5.5
Purchase accounting adjustments for inventory	(0.5)		(2.6)		(0.6)		(4.2)
Corporate, other products and eliminations other income (loss), net	0.2		(0.2)		0.3		(0.3)
Income (loss) before income taxes	(21.2)		10.8		(30.7)		3.1
Income tax benefit (expense)	0.7		(4.3)		5.4		0.6
Net income (loss)	$	(20.5)	$	6.5	$	(25.3)	$	3.7

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Capital Expenditures:
Ready-mixed concrete(1)	$	10.4	$	4.3	$	11.5	$	8.7
Aggregate products(2)	2.9		2.5		34.0		5.3
Other products and corporate	0.3		0.1		0.5		0.2
Total capital expenditures	$	13.6	$	6.9	$	46.0	$	14.2

 (1)    Includes $8.2 million for the acquisition of the rail terminal and bulk storage facility for cementitious materials in Stockton, California for the three and six months ended June 30, 2021.

 (2)    Includes $28.7 million for the acquisition of the property and the underlying royalty agreement associated with the Orca Quarry on Vancouver Island, British Columbia, Canada for the six months ended June 30, 2021.

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue by Product:
Ready-mixed concrete	$	274.3	$	272.4	$	515.8	$	564.6
Aggregate products	36.4		38.2		68.4		69.3
Other(1)	16.7		12.1		28.9		23.2
Total revenue	$	327.4	$	322.7	$	613.1	$	657.1

 (1) Includes building materials, aggregates distribution, hauling and other.

	June 30, 2021		December 31, 2020
Identifiable Property, Plant and Equipment Assets:
Ready-mixed concrete	$	289.5	$	286.9
Aggregate products	495.6		478.1
Other products and corporate	21.7		23.2
Total identifiable assets	$	806.8	$	788.2

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STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Valuation Assumptions

The assumptions used to value the above-target portion of the 2021 Grant were as follows:

	Value
Expected term (years)(1)	0.3 - 0.4
Expected volatility	72.9%
Risk-free interest rate	0.3%
Vesting price(1)(2)	$69.23 - $74.95
Average grant date fair value per share	$49.65 - $47.97

(1)The $69.23 stock price hurdle for the 2021 Grant was met during June 2021, the related performance stock units vested, and the related expense that would have been recognized over 0.3 years was accelerated and recognized during the three months ended June 30, 2021.

(2)The vesting price is the average of the daily volume-weighted average share price of USCR Stock over any period of 20 consecutive trading days within the three-year period beginning on the date of grant, based on hurdles established on March 1, 2021.

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ACQUISITIONS AND BUSINESS COMBINATIONS - Additional Information (Narrative) (Details) $ / shares in Units, T in Millions, $ in Millions					3 Months Ended		4 Months Ended	6 Months Ended
	Apr. 20, 2021 USD ($)	Mar. 12, 2021 USD ($)	Nov. 07, 2020 USD ($)	Feb. 24, 2020 a T	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) $ / shares	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Goodwill					$ 238.0				$ 238.0		$ 238.2
Stockton Terminal Facility
Business Acquisition [Line Items]
Consideration transferred, asset acquisition	$ 8.2
Orca acquisition
Business Acquisition [Line Items]
Consideration transferred, asset acquisition		$ 28.7
Sugar City Acquisition
Business Acquisition [Line Items]
Consideration transferred			$ 7.8
Goodwill			$ 2.1
Coram Material Corp.
Business Acquisition [Line Items]
Area of land (acres) | a				330
Area of land, mining acres (acres) | a				180
Proven aggregate reserves (tons) | T				41.9
Proven but unpermitted aggregate reserves (tons) | T				7.5
Transaction costs										$ 0.6
Revenue						$ 7.0	$ 9.6
Operating income						1.3	1.1
Coram Material Corp. | Intersegment sales
Business Acquisition [Line Items]
Revenue						$ 2.7	$ 3.7
Vulcan Materials Company
Business Acquisition [Line Items]
Transaction costs					$ 6.3				$ 6.3
Vulcan Materials Company | Forecast
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares								$ 0.001
Cash portion, cash per share for common stock converted | $ / shares								$ 74.00
Termination fee								$ 50.0

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ACQUISITIONS AND BUSINESS COMBINATIONS - Summary of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		6 Months Ended
	Feb. 24, 2020	Jun. 30, 2021	Jun. 30, 2020
Business Acquisition [Line Items]
Acquisitions funded by deferred consideration		$ 0.0	$ 1.7
Coram Material Corp.
Business Acquisition [Line Items]
Accounts receivable	$ 2.0
Inventory	10.0
Other current assets	0.3
Property, plant and equipment	130.9
Total assets acquired	143.2
Current liabilities	0.1
Other long-term liabilities	0.2
Total liabilities assumed	0.3
Total consideration (fair value)	142.9
Consideration satisfied in cash	140.2	1.0
Acquisitions funded by deferred consideration	1.7
Working capital adjustment	1.6
Accounts payable	0.6	$ 0.6
Consideration transferred, liabilities incurred	$ 2.0

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ACQUISITIONS AND BUSINESS COMBINATIONS - Schedule of Unaudited Pro Forma Information (Details) - Coram Material Corp. - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Business Acquisition [Line Items]
Revenue	$ 322.7	$ 659.2
Net income attributable to U.S. Concrete	$ 9.3	$ 7.7
Earnings per share attributable to U.S. Concrete - basic (in dollars per share)	$ 0.56	$ 0.46
Earnings per share attributable to U.S. Concrete - diluted (in dollars per share)	$ 0.56	$ 0.46

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ACQUISITIONS AND BUSINESS COMBINATIONS - Schedule of Adjustments Reflected in Pro Forma Net Income (Loss) and Net Income (Loss) Per Share Amounts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Increase in depreciation, depletion and amortization expense			$ (50.1)	$ (48.6)
Increase in interest expense	$ (10.3)	$ (11.4)	(20.7)	(22.8)
Increase in income tax expense	$ 0.7	(4.3)	$ 5.4	0.6
Coram Material Corp. | Acquisition-related costs
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Decrease in cost of goods sold related to fair value increase in inventory		2.6		4.2
Increase in depreciation, depletion and amortization expense		0.0		(0.9)
Exclusion of buyer transaction costs		0.1		0.6
Exclusion of seller transaction costs		0.0		0.3
Increase in interest expense		0.0		(0.8)
Increase in income tax expense		$ 0.0		$ (1.1)

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ALLOWANCE FOR DOUBTFUL ACCOUNTS AND CUSTOMER DISPUTES (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 7.2
Provision for doubtful accounts and customer disputes	1.0
Uncollectible receivables written off, net of recoveries	(0.8)
Ending balance	7.4
Allowances for other receivables	$ 1.3

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INVENTORIES (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 67.6	$ 64.4
Building materials for resale	6.4	4.1
Other	2.5	1.8
Total	76.5	70.3
Raw materials, noncurrent	$ 9.4	$ 2.5

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DEBT - Schedule of Debt and Capital Leases (Details) - USD ($) $ in Millions	Jun. 30, 2021	Jun. 25, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Finance leases	$ 85.4		$ 87.9
Debt issuance costs	(10.2)		(7.6)
Total debt	789.1		702.4
Less: current maturities	(40.8)		(33.7)
Long-term debt, net of current maturities	748.3		668.7
Unsecured notes | 2029 Notes
Debt Instrument [Line Items]
Long-term debt	$ 400.0		$ 400.0
Interest rate	5.125%		5.125%
Effective interest rate (as a percent)	5.25%		5.25%
Unsecured notes | 2024 Notes
Debt Instrument [Line Items]
Long-term debt	$ 0.0		$ 201.8
Interest rate			6.375%
Effective interest rate (as a percent)			6.56%
Term loans
Debt Instrument [Line Items]
Long-term debt	$ 300.0		$ 0.0
Debt issuance costs		$ (4.6)
Effective interest rate (as a percent)	3.25%
Asset based revolving credit facility
Debt Instrument [Line Items]
Long-term debt	$ 3.5		$ 6.5
Effective interest rate (as a percent)	3.50%		3.50%
Delayed draw term loan facility
Debt Instrument [Line Items]
Long-term debt	$ 0.0		$ 0.0
Promissory notes
Debt Instrument [Line Items]
Long-term debt	$ 10.4		$ 13.8

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DEBT - Narrative (Details)			3 Months Ended		6 Months Ended
	Jun. 26, 2021 USD ($)	Jun. 25, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Debt issuance costs, net			$ 10,200,000		$ 10,200,000		$ 7,600,000
Loss on extinguishment of debt			5,500,000	$ 0	5,500,000	$ 0
Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Undrawn standby letters of credit			25,900,000		25,900,000
Term Loans
Debt Instrument [Line Items]
Debt issuance costs, net		$ 4,600,000
Aggregate principal amount		$ 300,000,000.0
Discount rate on issuance price		99.75%
Term Loans | London Interbank Offered Rate (LIBOR) | Debt interest rate option one
Debt Instrument [Line Items]
Basis spread on variable rate, floor		0.0050
Basis spread on variable rate		2.75%
Term Loans | London Interbank Offered Rate (LIBOR) | Debt interest rate option two
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
Term Loans | Federal Reserve Bank Effective Rate | Debt interest rate option two
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
Term Loans | Base Rate | Debt interest rate option two
Debt Instrument [Line Items]
Basis spread on variable rate, floor		0.0150
Basis spread on variable rate		1.75%
Unsecured notes
Debt Instrument [Line Items]
Fair value of long-term debt			436,600,000		436,600,000
Fourth Loan Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs, net		$ 1,500,000
Fourth Loan Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		300,000,000.0
Asset Based Revolving Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum availability under the Revolving Facility			214,700,000		$ 214,700,000
Fixed charge coverage ratio, minimum required					100.00%
Fixed charge coverage ratio, measurement period					12 months
Asset Based Revolving Credit Facility | Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Undrawn standby letters of credit			1,100,000		$ 1,100,000
Senior Unsecured Notes Due 2024
Debt Instrument [Line Items]
Write-off of unamortized debt issuance costs			1,400,000
Early repayment of senior debt	$ 200,000,000.0
Debt instrument redemption price	101.594%
Loss on extinguishment of debt			3,100,000
Loss on redemption of debt, redemption premium			$ 3,200,000
Unamortized premium	$ 1,500,000
Senior Unsecured Notes Due 2024 | Unsecured notes
Debt Instrument [Line Items]
Interest rate							6.375%
2029 Notes | Unsecured notes
Debt Instrument [Line Items]
Interest rate			5.125%		5.125%		5.125%
Delayed draw term loan facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 178,700,000
Write-off of unamortized debt issuance costs			$ 2,300,000

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INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Income tax benefit (expense)	$ 0.7	$ (4.3)	$ 5.4	$ 0.6
Income taxes receivable	$ 18.7		$ 18.7		$ 5.8
Coronavirus Aid, Relief and Economic Security (CARES Act), Interest Limitation
Operating Loss Carryforwards [Line Items]
Income tax benefit (expense)				$ 3.2

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EARNINGS (LOSS) PER SHARE (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restricted stock awards and restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive shares (in shares)	0.5	0.8	0.5	0.6

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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Withdrawal obligation	$ 1.4
Letter of Credit | Line of Credit
Loss Contingencies [Line Items]
Undrawn standby letters of credit	25.9
Long-term line of credit	1.1
Insurance Claims
Loss Contingencies [Line Items]
Amount accrued for self-insurance claims	34.9	$ 33.0
Performance bonds
Loss Contingencies [Line Items]
Contingent liability for performance	12.9
Minimum | Workers' Compensation Insurance and General Liability
Loss Contingencies [Line Items]
Deductible retention per occurrence	1.0
Minimum | Automobile Insurance
Loss Contingencies [Line Items]
Deductible retention per occurrence	2.0
Maximum | Workers' Compensation Insurance and General Liability
Loss Contingencies [Line Items]
Deductible retention per occurrence	2.0
Maximum | Automobile Insurance
Loss Contingencies [Line Items]
Deductible retention per occurrence	$ 10.0

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SEGMENT INFORMATION - Reconciliation of Total Reportable Segment Adjusted EBITDA to Income (Loss) From Continuing Operations (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) reporting_segment	Jun. 30, 2020 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | reporting_segment			2
Revenue by Segment:
Revenue	$ 327.4	$ 322.7	$ 613.1	$ 657.1
Reconciliation of Total Reportable Segment Adjusted EBITDA to Net Income (Loss):
Total reportable segment Adjusted EBITDA	51.0	59.7	88.4	102.7
Other products and eliminations from operations	0.7	0.3	0.4	0.4
Corporate overhead	(32.6)	(16.3)	(46.3)	(31.9)
Depreciation, depletion and amortization for reportable segments	(24.2)	(23.7)	(47.1)	(45.5)
Interest expense, net	(10.3)	(11.4)	(20.7)	(22.8)
Loss on extinguishment of debt	(5.5)	0.0	(5.5)	0.0
Gain on sale of business	0.0	0.0	0.7	0.0
Realignment initiative costs	0.0	(0.8)	(0.4)	(0.8)
Change in value of contingent consideration for reportable segments	0.0	5.8	0.1	5.5
Purchase accounting adjustments for inventory	(0.5)	(2.6)	(0.6)	(4.2)
Corporate, other products and eliminations other income (loss), net	0.2	(0.2)	0.3	(0.3)
Income (loss) before income taxes	(21.2)	10.8	(30.7)	3.1
Income tax benefit (expense)	0.7	(4.3)	5.4	0.6
Net income (loss)	(20.5)	6.5	(25.3)	3.7
Ready-mixed concrete
Revenue by Segment:
Revenue	274.3	272.4	515.8	564.6
Reconciliation of Total Reportable Segment Adjusted EBITDA to Net Income (Loss):
Total reportable segment Adjusted EBITDA	30.9	38.1	55.8	69.8
Aggregate products
Revenue by Segment:
Revenue	25.2	26.1	47.8	47.2
Reconciliation of Total Reportable Segment Adjusted EBITDA to Net Income (Loss):
Total reportable segment Adjusted EBITDA	20.1	21.6	32.6	32.9
Aggregate products | Cargo and Freight
Revenue by Segment:
Revenue	11.2	12.1	20.6	22.1
Operating segment
Revenue by Segment:
Revenue	327.5	326.9	613.5	662.7
Operating segment | Aggregate products
Revenue by Segment:
Revenue	53.2	54.5	97.7	98.1
Intersegment sales | Aggregate products
Revenue by Segment:
Revenue	16.8	16.3	29.3	28.8
Other products and corporate
Revenue by Segment:
Revenue	$ (0.1)	$ (4.2)	$ (0.4)	$ (5.6)

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SEGMENT INFORMATION - Capital Expenditures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment	$ 13.6	$ 6.9	$ 46.0	$ 14.2
Operating segment | Ready-mixed concrete
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment	10.4	4.3	11.5	8.7
Operating segment | Ready-mixed concrete | Stockton Terminal Facility
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment	8.2		8.2
Operating segment | Aggregate Products
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment	2.9	2.5	34.0	5.3
Operating segment | Aggregate Products | Orca acquisition
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment			28.7
Other products and corporate
Segment Reporting Information [Line Items]
Payments to acquire property, plant, and equipment	$ 0.3	$ 0.1	$ 0.5	$ 0.2

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SEGMENT INFORMATION - Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Total revenue	$ 327.4	$ 322.7	$ 613.1	$ 657.1
Ready-mixed concrete
Segment Reporting Information [Line Items]
Total revenue	274.3	272.4	515.8	564.6
Aggregate products
Segment Reporting Information [Line Items]
Total revenue	36.4	38.2	68.4	69.3
Other
Segment Reporting Information [Line Items]
Total revenue	$ 16.7	$ 12.1	$ 28.9	$ 23.2

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SEGMENT INFORMATION - Identifiable Property, Plant and Equipment Assets (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total identifiable assets	$ 806.8	$ 788.2
Operating segment | Ready-mixed concrete
Segment Reporting Information [Line Items]
Total identifiable assets	289.5	286.9
Operating segment | Aggregate products
Segment Reporting Information [Line Items]
Total identifiable assets	495.6	478.1
Other products and corporate
Segment Reporting Information [Line Items]
Total identifiable assets	$ 21.7	$ 23.2

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STOCK-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		6 Months Ended
	Feb. 22, 2021	Mar. 01, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 01, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense			$ 14.7	$ 2.5	$ 17.6	$ 6.2
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period (shares)		367,720
Percentage of plan that is time-vested (percentage)		60.00%
Award vesting period (years)					3 years
Percentage of plan that is performance based (percentage)		40.00%
Percentage of performance stock units granted (percentage)		200.00%
Share price (USD per share)							$ 55.72
Granted in period, fair value			$ 8.1
Expected volatility (percentage)					72.90%
Risk-free interest rate (percentage)					0.30%
Cost not yet recognized, period for recognition			3 months 18 days
Number of consecutive trading days					20 days
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (years)					3 months 18 days
Vesting price (USD per share)			$ 69.23		$ 69.23
Grant date fair value per share (USD per share)					$ 49.65
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (years)					4 months 24 days
Vesting price (USD per share)			$ 74.95		$ 74.95
Grant date fair value per share (USD per share)					$ 47.97
U.S. Concrete, Inc. Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized (shares)	880,000
Common stock reserved for future issuance (shares)			485,000		485,000

XML

Label	Element	Value
Accounting Standards Update [Extensible List]	us-gaap_AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member