UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of report (Date of earliest event reported): January 24, 2007

SWIFT TRANSPORTATION CO., INC.

(Exact Name of Registrant as Specified in Charter)

Nevada	0-18605	86-0666860
(State or Other Jurisdiction	(Commission File	(IRS Employer
of Incorporation)	Number)	Identification No.)

2200 South 75th Avenue, Phoenix, Arizona	85043
(Address of Principal Executive Offices)	(Zip Code)

(602) 269-9700
(Registrant’s telephone number, including area code)
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

	ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION
	ITEM 2.06 MATERIAL IMPAIRMENT
	ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS
SIGNATURES
EXHIBIT INDEX
EX-99.1

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On January 24, 2007, we announced in a press release information concerning our earnings for the three and twelve months ended December 31, 2006. A copy of this press release, including information concerning forward-looking statements and factors that may affect our future results, is attached at Exhibit 99.1.

The information in this Item 2.02 and in Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 2.06 MATERIAL IMPAIRMENT

As part of its review and closing process for the year ended December 31, 2006, the Company identified a pre-tax impairment of $18.4 million related to the write-off of a note receivable and other outstanding amounts related to the Company’s sale of its auto haul business in April 2005. The Company recorded the pre-tax impairment of such amount in the fourth quarter of 2006.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(a)	Not applicable.
(b)	Not applicable.
(c)	Not applicable.
(d)	Exhibits.
99.1	Press Release dated January 24, 2007

SIGNATURES

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

Dated: January 25, 2007

SWIFT TRANSPORTATION CO., INC.

/s/ Glynis Bryan

By: Glynis Bryan

Chief Financial Officer

EXHIBIT INDEX

Exhibit 99.1 Press Release dated January 24, 2007