UNITED STATES SECURITIES AND EXCHANGE COMMISSION

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

~~PURSUANT~~November 4, 2007 TO(Date ~~SECTION~~of 13earliest ORevent ~~15(d~~reported) OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): May 27, 2007

WASHINGTON GROUP INTERNATIONAL, INC.

Delaware		1-12054		33-0565601
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

(Exact name of registrant as specified in its charter)

720 PARK BOULEVARD, BOISE, IDAHO 83712


Delaware	1-12054	33-0565601
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification Number)

~~(Address of~~720 ~~principal~~PARK ~~executive~~BOULEVARD BOISE, ~~offices)~~IDAHO ~~(Zip Code)~~83712

208 / 386-5000 (Registrant’s telephone number, including area code)

~~(Registrant’s~~Not Applicable ~~telephone~~(Former ~~number~~name or former address, ~~including~~if ~~area~~changed ~~code~~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:

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

~~Item~~ITEM 1.01 ~~Entry~~ENTRY ~~into~~INTO aA ~~Material~~MATERIAL ~~Definitive~~DEFINITIVE ~~Agreement~~AGREEMENT.

OnAmendment ~~May~~No. ~~27,~~1 2007, Washington Group International, Inc., a Delaware corporation (“WGI”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with URS Corporation, a Delaware corporation (“URS”), Elk Merger Corporation, a Delaware corporation and wholly owned subsidiary of URS (“Merger Sub”) and Bear Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of URS (“Second Merger Sub”). The Merger Agreement provides that, upon the terms and subject to the ~~conditions set forth in the Merger~~ Agreement, ~~Merger Sub will merge with~~ and ~~into~~Plan WGI, with WGI continuing as the surviving corporation (the “First Merger”). Immediately following the First Merger, URS will cause WGI to merge with and into Second Merger Sub, with Second Merger Sub continuing as the surviving corporation under the name “Washington Group International, Inc.” and as a wholly owned subsidiary of ~~URS (the “Second~~ Merger~~” and, together with the~~ ~~First Merger, the “Transactions”).~~

~~Subject~~ On toNovember 4, ~~the terms and conditions of the Merger Agreement~~2007, ~~which has been unanimously approved and adopted by boards of directors of both~~ URS ~~and WGI~~Corporation, ata ~~the~~Delaware ~~effective~~corporation ~~time of the First Merger~~ (~~the~~ “~~Effective Time~~URS”), by ~~virtue~~Washington ~~of the First Merger and without any action on the part of~~Group ~~URS~~International, ~~Merger Sub or WGI or their respective stockholders~~Inc., ~~each~~a ~~share~~Delaware ofcorporation ~~common stock of WGI, par value $0.01 per share~~ (“WGI ~~Common Stock~~”), ~~issued~~Elk ~~and outstanding~~Merger ~~immediately~~Corporation, ~~prior~~a toDelaware ~~the effective time of the First Merger, other~~corporation ~~than~~and ~~those~~wholly ~~shares~~owned ~~held by URS, any~~ subsidiary of URS, (“Merger Sub”), orand ~~Second~~ Bear Merger Sub, ~~and other than those shares with respect to which dissenters’ rights are properly exercised~~Inc., ~~will be cancelled and converted into the right to receive~~ a ~~combination of (1) 0.772 (the “Exchange Ratio”) shares of~~Delaware ~~common~~corporation ~~stock,~~and ~~par~~wholly ~~value~~owned ~~$0.01~~subsidiary ~~per share,~~ of URS (“~~URS~~Second ~~Common~~Merger ~~Stock~~Sub”), ~~and (2) $43.80~~agreed into ~~cash~~amend ~~without~~the ~~interest~~terms (of the ~~“Per~~Agreement ~~Share Cash Amount,”~~ and ~~together~~ ~~with~~Plan ~~the~~of ~~consideration~~Merger ~~referred~~dated toMay 27, in2007 ~~clause~~ (~~1),~~ the “Merger ~~Consideration~~ Agreement”)~~. Based~~ onand ~~the~~entered ~~closing~~into ~~price~~Amendment ~~of URS Common Stock (as reported on the New York Stock Exchange) of $46~~No.~~89 per share on May~~ ~~25,~~1 ~~2007,~~to the ~~value~~Agreement ofand ~~the~~Plan ~~Merger Consideration is $80.00 per share~~ of ~~WGI~~Merger ~~Common~~(the ~~Stock, for total consideration of approximately $2~~“Amendment”).~~6 billion.~~

~~Each~~ The ~~vested~~Amendment ~~and~~provides ~~unvested option~~that each WGI stockholder would have the right to ~~purchase~~elect ~~shares~~to receive, for each share of common stock of WGI, par value $0.01 per share (“WGI Common Stock”), ~~that~~other isthan ~~outstanding immediately~~those ~~prior~~shares toheld ~~the~~by ~~Effective~~URS, ~~Time~~any ~~will~~subsidiary beof ~~canceled~~URS, ~~and~~Merger ~~converted~~Sub ~~into~~or aSecond ~~combination of~~Merger ~~cash~~Sub and other than treasury shares ofand ~~URS~~shares ~~Common~~as ~~Stock~~to ~~with~~which a ~~value~~WGI ~~equal~~stockholder tohas ~~the~~validly ~~product~~demanded ofand perfected appraisal rights under Delaware law, (1a) ~~the~~ 0.90 ~~number~~of a share of ~~shares~~common stock of ~~WGI~~URS, par value $0.01 per share (“URS Common Stock”) ~~subject~~and to$43.80 ~~the~~in ~~option~~cash, ~~and~~without interest, (2b) an ~~the excess~~amount in cash, ifwithout ~~any~~interest, equal to the sum of (i) $43.80 and (ii) 0.0090 ~~over~~multiplied by the ~~exercise~~volume weighted ~~price~~trading ~~per~~average ~~share~~prices of ~~WGI~~ URS Common Stock ~~subject~~ toduring the ~~option. Each~~five ~~award~~trading ~~of restricted~~days ~~WGI~~ending ~~Common~~on ~~Stock~~the ~~will~~trading ~~vest~~day ~~and~~that ~~receive~~is ~~the~~one ~~Merger Consideration. Each~~day ~~deferred~~prior ~~share~~to ofthe date of the WGI ~~will~~special bemeeting ~~converted~~at ~~into~~which the ~~right~~required toWGI ~~receive~~stockholder approval ~~$80~~is ~~in cash~~received, ~~payable~~or on (c) a ~~deferred~~ ~~basis~~number atof shares equal to the ~~time~~sum ~~that~~of (i) 0.90 and (ii) $43.80 divided by the ~~underlying~~volume ~~deferred~~weighted ~~shares~~trading ~~would~~average ~~have~~prices ~~been~~of URS Common Stock during the ~~settled~~five ~~under~~trading ~~their~~days ~~terms~~ending ason inthe ~~effect~~trading ~~immediately~~day that is one day prior to the date of the ~~Effective~~WGI ~~Time,~~special meeting at which the required WGI shareholder approval is ~~plus~~received, ~~earnings~~in ~~thereon. Under~~connection with the proposed transactions (the “Merger”). ~~Agreement,~~The all-cash ~~WGI~~and ~~stockholders~~all-stock elections, however, are ~~estimated~~subject to ~~receive~~proration in order to preserve an ~~aggregate~~overall ofper share ~~approximately~~mix 24of 0.~~9 million shares~~90 of a share of URS Common Stock and $143.480 ~~billion~~ in cash~~. Upon~~ ~~completion of~~ (the ~~Transactions,~~“Merger ~~WGI~~Consideration”) ~~stockholders~~for ~~would~~all ~~own~~of ~~approximately~~the ~~31%~~outstanding shares of ~~the~~WGI ~~combined~~Common ~~company~~Stock taken together.

~~URS~~ Immediately ~~and~~following ~~WGI~~the ~~have~~completion ~~made~~of the Merger, each outstanding option to acquire shares ~~customary~~of ~~representations~~WGI Common Stock, ~~warranties~~whether ~~and~~or ~~covenants~~not invested, that remains outstanding as of the effective time of the Merger ~~Agreement~~will be cancelled and converted into the right to receive the “option consideration,” which equals the ~~consummation~~product of (1) the ~~First~~number ~~Merger~~of isshares of WGI Common Stock subject to such option and (i2) the ~~URS’s~~excess, ~~stockholders approving~~if any, of $97.89 over the ~~issuance~~exercise price per share of ~~URS~~WGI ~~shares~~Common inStock subject to the ~~First~~option. ~~Merger~~Under the Amendment, ~~(ii)~~each WGI’s optionholder, other than Dennis Washington, will have the ~~stockholders~~right ~~adopting~~to elect to receive the ~~Merger~~option ~~Agreement~~consideration, for each cancelled WGI option owned, in (a) a combination of (~~iii~~i) an amount in cash, without interest, equal to the ~~expiration~~option orconsideration ~~termination~~multiplied by 0.4474 and (ii) a number of shares of URS Common Stock equal to the ~~Hart-Scott-Rodino~~option consideration ~~Antirust~~less ~~Improvements~~the ~~Act~~cash ~~waiting~~payable ~~period~~pursuant to the preceding clause (i), divided by $60.10 (a ~~and~~“Mixed Option Election”); (ivb) an ~~other~~amount ~~customary~~in ~~closing~~cash, ~~conditions.~~without interest, equal to the option consideration; or (c) a number of shares of URS Common Stock equal to the option consideration ~~The~~divided ~~Transactions~~by ~~are~~$60.10; ~~not~~provided, ~~conditioned~~however, onthat ~~financing~~all-cash and ~~URS~~all-stock ~~has~~elections ~~obtained~~are asubject to ~~commitment~~proration ~~letter~~in ~~from~~order ~~Morgan~~to ~~Stanley~~preserve ~~Senior~~an ~~Funding,~~overall ~~Inc~~option consideration value mix of 44.74% cash and ~~Wells Fargo~~55.26% ~~Bank,~~URS ~~National~~Common ~~Association,~~Stock. toAny ~~provide~~cancelled ~~debt~~option ~~financing~~held by Mr. Washington will be exchanged only for the combination of cash ~~portion~~and ofstock, as if Mr. Washington had made a ~~the~~Mixed ~~consideration~~Option Election, ~~subject~~but toMr. ~~certain~~Washington ~~customary~~may ~~conditions. The~~exercise ~~Transactions,~~his ~~taken~~options ~~together,~~prior ~~are~~to ~~intended~~the closing of the transaction so that he can elect to ~~qualify~~receive ascash, awhich ~~reorganization~~is ~~under~~his intention.

Based on the closing price of URS Common Stock (as reported on the New York Stock Exchange) of $60.10 per share on November 2, 2007, the value of the Merger Consideration is $97.89 per share of WGI Common Stock, for total consideration of approximately $3.2 billion. Under the Merger Agreement, as amended, WGI stockholders are estimated to receive an aggregate of approximately 29.4 million shares of URS Common Stock and approximately $1.4 billion in cash. Upon completion of the Merger, WGI stockholders would own approximately 35% of the combined company based on URS’ current outstanding shares.

~~Section~~Option ~~368(a)~~Exercise ofand ~~the~~Transaction ~~Internal~~Support ~~Revenue Code of 1986,~~Agreement ~~as amended. Upon completion of the Transactions, one current member of the WGI board of directors will join an expanded URS board of directors.~~

~~The~~ On November 4, ~~Merger~~2007, Dennis ~~Agreement~~Washington ~~contains~~entered ~~certain~~into ~~termination~~an ~~rights~~Option ~~for~~Exercise ~~both~~and Transaction Support Agreement (the “Support Agreement”) with URS and WGI. ~~Upon~~ ~~termination~~The Support Agreement provides that Mr. Washington will exercise his options and vote in favor of the Merger if necessary to obtain the required WGI stockholder approval. The exercise will be made in cash such that following the exercise Mr. Washington will have record and beneficial ownership of 3,224,100 shares of WGI Common Stock. In connection with the Support Agreement, ~~under~~on ~~specified~~November 3, ~~circumstances~~2007, ~~URS~~the ~~may~~independent bedirectors ~~required~~of WGI agreed to pay ~~WGI~~Mr. aWashington’s ~~termination~~filing fee under the Hart-Scott-Rodino Antitrust Improvements Act of ~~$50~~1976,~~000~~ as amended (the “HSR Act”),~~000~~ and the legal fees of his counsel in preparing such filing without any gross-up for imputed income. Mr. Washington has indicated that he intends to make the necessary HSR Act filing on November 5, 2007 in order to be able to exercise his options. Under the Support Agreement, Mr. Washington generally agrees not to, directly or ~~$70~~indirectly,~~000~~ sell,~~000~~ transfer, exchange or otherwise dispose of any of his options or WGI common stock. Under certain circumstances at the request of URS Mr. Washington must irrevocably constitute and appoint URS as his attorney and proxy with the full power to vote his shares of WGI ~~may~~common bestock ~~required~~in favor of the Merger. The Support Agreement will terminate on the earlier to ~~pay~~occur ~~URS~~of (a) the termination of the Merger ~~fee~~Agreement in accordance with the terms thereof, (b) the date following the date of ~~$70~~the WGI Stockholder Meeting,~~000,000~~ including any adjournment or postponement thereof and (c) the effective time of the Merger. Nothing in the Support Agreement may be construed to limit or affect any action or inaction by Mr. Washington in his capacity as a director or fiduciary of WGI.

~~The foregoing description of the Merger Agreement is qualified in its entirety by reference to the full text of the Merger Agreement, which is filed as Exhibit 2~~ITEM 5.~~01 to this report and is~~02 ~~incorporated~~COMPENSATORY ~~into~~ARRANGEMENTS ~~this~~OF ~~report~~CERTAIN ~~by reference~~OFFICERS. ~~The Merger Agreement, which has~~ been included to provide investors with information regarding its terms, contains representations and warranties of each of URS and WGI. It is not intended to provide any other factual information about WGI, URS, Merger Sub or Second Merger Sub. The assertions embodied in those representations and warranties were made for purposes of the Merger Agreement and are subject to qualifications and limitations agreed to by the respective parties in connection with negotiating the terms of the Merger Agreement. In addition, certain representations and warranties were made as of a specific date, may be subject to a contractual standard of materiality different from what might be viewed as material to stockholders, or may have been used for purposes of allocating risk between the respective parties rather than establishing matters as facts. Accordingly, you should not rely on the representations and warranties in the Merger Agreement as characterizations of the actual state of facts about WGI, URS, Merger Sub or Second Merger Sub. Investors should read the Merger Agreement together with the other information concerning URS and WGI that each company publicly files in reports and statements with the Securities and Exchange Commission.

~~The~~ In ~~Company~~connection ~~and~~with ~~URS~~the ~~issued~~Support ~~a joint press release~~ Agreement, on ~~May 28~~November 3, 2007, ~~announcing~~ the ~~execution~~independent directors of ~~the~~WGI ~~Merger~~agreed ~~Agreement~~to pay Mr. A ~~copy~~Washington’s offiling fee under the Hart-Scott-Rodino ~~press~~Antitrust ~~release~~Improvements isAct ~~included~~of 1976, as ~~Exhibit~~amended ~~99.01~~(the “HSR toAct”), ~~this~~and ~~report~~the legal fees of his counsel in preparing such filing without any gross-up for imputed income.

~~IMPORTANT~~ITEM ~~ADDITIONAL~~7.01 ~~INFORMATION~~REGULATION ~~WILL~~FD ~~BE FILED WITH THE SEC~~DISCLOSURE.

In On ~~connection with the proposed transaction~~November 5, 2007, URS and WGI ~~will~~issued ~~be filing documents with the Securities and Exchange Commission (the “SEC”), including the filing by URS of~~ a ~~registration~~ ~~statement~~joint onpress ~~Form~~release ~~S-4,~~announcing ~~and~~that URS and WGI ~~intend to file a related~~ ~~preliminary~~had ~~and~~each ~~definitive joint proxy statement/prospectus. Investors and security holders are urged to~~entered ~~read~~into the ~~registration~~Amendment ~~statement on Form S-4~~ and the ~~related~~Support ~~preliminary~~Agreement. ~~and definitive~~A ~~joint~~copy ~~proxy/prospectus~~of ~~when~~the ~~they~~press ~~become~~release ~~available~~is ~~because~~furnished ~~they~~as ~~will contain important information about the proposed transaction~~Exhibit 99. ~~Investors~~1 ~~and~~to ~~security~~this ~~holders~~Form ~~may obtain~~8-K ~~free~~pursuant ~~copies~~to ofItem 7.01. ~~these~~Exhibit 99.1 ~~documents~~attached ~~(when~~hereto ~~they~~shall ~~are~~not ~~available)~~be ~~and~~deemed ~~other documents~~ “filed ~~with~~” ~~the~~for ~~SEC~~purposes ~~at the SEC’s web site at www.sec.gov. In addition, investors and security holders~~of ~~may~~Section 18 ~~obtain free copies~~ of the ~~documents~~Securities ~~filed~~Exchange ~~with~~Act ~~the~~of ~~SEC~~1934, byas ~~URS~~amended, bynor ~~contacting URS~~shall ~~Investor~~it ~~Relations~~be atdeemed ~~877-877-8970.~~ incorporated ~~Investors~~by ~~and~~reference ~~security~~in ~~holders~~any ~~may~~filing ~~obtain~~under ~~free copies of~~ the ~~documents filed~~Securities ~~with~~Act ~~the~~of ~~SEC by WGI by contacting WGI Investor Relations at 866-964-4636. In addition~~1933, ~~you~~as ~~may also find information about the proposed transaction at www~~amended.~~urs-wng.com.~~

~~URS,~~ITEM ~~WGI and their directors and executive officers may be deemed participants in the solicitation of proxies from the stockholders of URS and WGI in connection with the proposed transaction~~9. ~~Information~~01 ~~regarding~~FINANCIAL ~~the special~~STATEMENTS ~~interests~~AND ~~of these directors and executive officers in the proposed transaction will be included in the joint proxy statement/prospectus of URS and WGI described above~~EXHIBITS. ~~Additional~~ information regarding the directors and executive officers of URS is also included in URS’s proxy statement for its 2007 Annual Meeting of Stockholders, which was filed with the SEC on April 18, 2007. Additional information regarding the directors and executive officers of WGI is also included in WGI’s proxy statement for its 2007 Annual Meeting of Stockholders, which was filed with the SEC on April 17,

3(c) Exhibits

2007, as amended. These documents are available free of charge at the SEC’s web site at www.sec.gov and from Investor Relations at URS and WGI as described above.


	2.1			Amendment No. 1 to the Agreement and Plan of Merger by and among URS Corporation, Elk Merger Corporation, a wholly owned subsidiary of URS Corporation, Bear Merger Sub, Inc., a wholly owned subsidiary of URS Corporation, and Washington Group International, Inc., dated November 4, 2007.
	10.1			Option Exercise and Transaction Support Agreement by and among URS Corporation, Washington Group International, Inc. and Dennis Washington, dated November 4, 2007
	99.1			Joint Press Release, dated November 5, 2007.

~~Item~~Additional ~~9.01~~Information ~~Financial~~for ~~Statements and Exhibits~~Investors

In connection with the proposed transaction, URS and Washington Group filed a definitive joint proxy statement/prospectus with the Securities and Exchange Commission (dthe “SEC”) ~~Exhibits~~ on October 1, 2007, and will file supplemental materials with the SEC. Investors and security holders are urged to read the definitive joint proxy/prospectus and the supplemental materials because they contain important information about the proposed transaction. Investors and security holders may obtain free copies of this document and other documents filed with the SEC at the SEC’s web site at www.sec.gov. In addition, investors and security holders may obtain free copies of the documents filed with the SEC by URS by contacting URS Investor Relations at 877-877-8970. Investors and security holders may obtain free copies of the documents filed with the SEC by Washington Group by contacting Washington Group Investor Relations at 866-964-4636. In addition, you may also find information about the merger transaction at www.urs-wng.com.

2.01		Agreement and Plan of Merger, dated as of May 27, 2007, among URS Corporation, Elk Merger Corporation, Bear Merger Sub, Inc. and Washington Group International, Inc.*
99.01		Joint press release, dated as of May 28, 2007, of Washington Group International, Inc. and URS Corporation regarding execution of the Agreement and Plan of Merger.

URS, Washington Group and their directors and executive officers may be deemed participants in the solicitation of proxies from the stockholders of URS and Washington Group in connection with the proposed transaction. Information regarding the special interests of these directors and executive officers in the proposed transaction is included in the definitive joint proxy statement/prospectus of URS and Washington Group described above. Additional information regarding the directors and executive officers of URS is also included in URS’ proxy statement for its 2007 Annual Meeting of Stockholders, which

* Scheduleswas ~~and~~filed ~~exhibits~~with ~~have been~~the ~~omitted~~SEC ~~pursuant~~on toApril 18, ~~Item~~2007. ~~601(b)(2)~~Additional information regarding the directors and executive officers of ~~Regulation~~Washington ~~S-K. The~~Group ~~Company~~is ~~undertakes~~also toincluded ~~furnish~~in Washington Group’s proxy statement for ~~supplemental~~its ~~copies~~2007 ofAnnual ~~any~~Meeting of ~~the~~Stockholders, ~~omitted~~which ~~schedules~~was ~~and~~filed ~~exhibits~~with ~~upon~~the ~~request~~SEC on April 17, 2007, as byamended. These documents are available free of charge at the USEC’s web site at www.Ssec.gov ~~Securities~~and from Investor Relations at URS and ~~Exchange~~Washington ~~Commission~~Group as described above.

4Forward Looking Statements

~~SIGNATURES~~ This Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, which are identified by the use of forward-looking terminology such as may, will, could, should, expect, anticipate, intend, plan, estimate, or continue or the negative thereof or other variations thereof. Each forward-looking statement, including, without limitation, any financial guidance, speaks only as of the date on which it is made, and Washington Group undertakes no obligation to update any forward-looking statement to reflect events or circumstances after the date on which it is made or to reflect the occurrence of anticipated or unanticipated events or circumstances. The forward-looking statements are necessarily based on assumptions and estimates of management and are inherently subject to various risks and uncertainties. Actual results may vary materially as a result of changes or developments in social, economic, business, market, legal, and regulatory circumstances or conditions, both domestically and globally, as well as due to actions by customers, clients, suppliers, business partners, or government bodies. Performance is subject to numerous factors, including demand for new power generation and for modification of existing power facilities, public sector funding, demand for extractive resources, capital spending plans of customers, and spending levels and priorities of the U.S., state and other governments. Results may also vary as a result of difficulties or delays experienced in the execution of contracts or implementation of strategic initiatives. Results may also be impacted by costs relating to the proposed merger transaction with URS Corporation and the timing of such merger transaction if it is approved by both companies’ stockholders. For additional risks and uncertainties impacting the forward-looking statements contained in this Form 8-K, please see “Note Regarding Forward-Looking Information” and “Item 1A. Risk Factors” in Washington Group’s annual report on Form 10-K for fiscal year 2006.

~~Pursuant~~SIGNATURE ~~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.~~

	WASHINGTON GROUP INTERNATIONAL, INC.
Date: May 29, 2007	By:	/s/ Craig G. Taylor
		Name: Craig G. Taylor
		Title: Vice President and Corporate Secretary

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.


	WASHINGTON GROUP INTERNATIONAL, INC.
Date: November 5, 2007	By:	/s/ Craig G. Taylor
		Craig G. Taylor
		Vice President and Secretary

EXHIBIT INDEX

2.01		Agreement and Plan of Merger, dated as of May 27, 2007, among URS Corporation, Elk Merger Corporation, Bear Merger Sub, Inc. and Washington Group International, Inc. *
Exhibit No.			Description
99.01		Joint press release, dated as of May 28, 2007, of Washington Group International, Inc. and URS Corporation regarding execution of the Agreement and Plan of Merger.
	2.1		Amendment No. 1 to the Agreement and Plan of Merger by and among URS Corporation, Elk Merger Corporation, a wholly owned subsidiary of URS Corporation, Bear Merger Sub, Inc., a wholly owned subsidiary of URS Corporation, and Washington Group International, Inc., dated November 4, 2007.
	10.1		Option Exercise and Transaction Support Agreement by and among URS Corporation, Washington Group International, Inc. and Dennis Washington, dated November 4, 2007
	99.1		Joint Press Release, dated November 5, 2007.

* Schedules and exhibits have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company undertakes to furnish supplemental copies of any of the omitted schedules and exhibits upon request by the U.S. Securities and Exchange Commission.

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