Exhibit 1.1




                                7,064,033 Shares

                                 URS CORPORATION

                     COMMON STOCK, PAR VALUE $0.01 PER SHARE



                             UNDERWRITING AGREEMENT






September 24, 2003





                                          September 24, 2003

Morgan Stanley & Co. Incorporated
Credit Suisse First Boston LLC
Lehman Brothers Inc.
c/o Morgan Stanley & Co. Incorporated
   1585 Broadway
   New York, New York  10036

Dear Sirs and Mesdames:

      Certain shareholders of URS Corporation, a Delaware corporation (the
"COMPANY"), named in Schedule I hereto (each, a "SELLING SHAREHOLDER" and,
collectively, the "SELLING SHAREHOLDERS") severally propose to sell to the
several Underwriters named in Schedule II hereto (the "UNDERWRITERS"), an
aggregate of 7,064,033 shares of the common stock, par value $0.01 per share, of
the Company (the "FIRM SHARES"), each Selling Shareholder selling the amount set
forth opposite such Selling Shareholder's name in Schedule I hereto.

      The Company also proposes to issue and sell to the several Underwriters
not more than an additional 1,059,605 shares of its common stock, par value
$0.01 per share (the "ADDITIONAL SHARES"), if and to the extent that you, as
Managers of the offering, shall have determined to exercise, on behalf of the
Underwriters, the right to purchase such shares of common stock granted to the
Underwriters in Section 3 hereof. The Firm Shares and the Additional Shares are
hereinafter collectively referred to as the "SHARES". The shares of common
stock, par value $0.01 per share, of the Company to be outstanding after giving
effect to the sales contemplated hereby are hereinafter referred to as the
"COMMON STOCK". The Company and the Selling Shareholders are hereinafter
sometimes collectively referred to as the "SELLERS".

      The Company has filed with the Securities and Exchange Commission (the
"COMMISSION") a registration statement on Form S-3 (No. 333-107284), including a
prospectus, relating to the Shares, and has filed with, or transmitted for
filing to, or shall promptly hereafter file with or transmit for filing to, the
Commission (i) a prospectus supplement (the "PROSPECTUS SUPPLEMENT")
specifically relating to the Shares pursuant to Rule 424 under the Securities
Act of 1933, as amended (the "SECURITIES Act"), and (ii) a related prospectus
dated September 8, 2003 (the "BASE PROSPECTUS") and the offering thereof from
time to time in accordance with Rule 415 of the rules and regulations of the
Commission under the Securities Act (the "SECURITIES ACT REGULATIONS"). Such
registration statement has been declared effective by the Commission. Such
registration statement, as amended to the date hereof, is referred to herein as
the "REGISTRATION STATEMENT"; and the Base Prospectus and the Prospectus
Supplement, in the form first used to confirm sales of the Shares, are
collectively referred to herein as the "PROSPECTUS"; provided, however, that all
references to the "REGISTRATION STATEMENT" and the "PROSPECTUS" shall also be
deemed to include all documents incorporated therein by reference pursuant to
the Securities Exchange Act of 1934, as amended (the "EXCHANGE ACT"). If the
Company has filed an abbreviated registration statement to register additional
shares of Common Stock pursuant to Rule 462(b) under the Securities Act (the
"RULE 462 REGISTRATION STATEMENT"), then any reference herein to the term
"REGISTRATION STATEMENT" shall be deemed to include such Rule 462 Registration
Statement.



                                       1


      1. Representations and Warranties of the Company. The Company represents
and warrants to and agrees with each of the Underwriters that:

            (a) The Registration Statement has become effective; no stop order
      suspending the effectiveness of the Registration Statement is in effect,
      and no proceedings for such purpose are pending before or threatened by
      the Commission.

            (b) (i) Each document, if any, filed or to be filed pursuant to the
      Exchange Act, and incorporated by reference in the Prospectus complied or
      will comply when so filed in all material respects with the Exchange Act
      and the applicable rules and regulations of the Commission thereunder,
      (ii) the Registration Statement, when it became effective, did not contain
      and, as amended or supplemented, if applicable, will not contain any
      untrue statement of a material fact or omit to state a material fact
      required to be stated therein or necessary to make the statements therein
      not misleading, (iii) the Registration Statement and the Prospectus comply
      and, as amended or supplemented, if applicable, will comply in all
      material respects with the Securities Act and the applicable rules and
      regulations of the Commission thereunder and (iv) the Prospectus does not
      contain and, as amended or supplemented, if applicable, will not contain
      any untrue statement of a material fact or omit to state a material fact
      necessary to make the statements therein, in the light of the
      circumstances under which they were made, not misleading, except that the
      representations and warranties set forth in this paragraph do not apply to
      statements or omissions in the Registration Statement or the Prospectus
      based upon information relating to any Underwriter furnished to the
      Company in writing by such Underwriter through you expressly for use
      therein.

            (c) The Company has been duly incorporated, is validly existing as a
      corporation in good standing under the laws of the jurisdiction of its
      incorporation, has the corporate power and authority to own its property
      and to conduct its business as described in the Prospectus and is duly
      qualified to transact business and is in good standing in each
      jurisdiction in which the conduct of its business or its ownership or
      leasing of property requires such qualification, except to the extent that
      the failure to be so qualified or be in good standing would not have a
      material adverse effect on the Company and its subsidiaries, taken as a
      whole.

            (d) Each subsidiary of the Company has been duly incorporated or
      formed, is validly existing as a corporation in good standing under the
      laws of the jurisdiction of its incorporation or formation, has the
      corporate or limited liability company power and authority to own its
      property and to conduct its business as described in the Prospectus and is
      duly qualified to transact business and is in good standing in each
      jurisdiction in which the conduct of its business or its ownership or
      leasing of property requires such qualification, except to the extent that
      the failure to be so qualified or be in good standing would not have a
      material adverse effect on the Company and its subsidiaries, taken as a
      whole; all of the issued shares of capital stock of each subsidiary of the
      Company that is a corporation and all of the issued limited liability
      company interests of each subsidiary that is a limited liability company
      have been duly and validly authorized and issued, are fully paid and
      non-assessable and are owned directly or beneficially by the Company or


                                       2


      through wholly owned subsidiaries of the Company, free and clear of all
      liens, encumbrances, equities or claims (except in each case as disclosed
      in the Prospectus).

            (e) This Agreement has been duly authorized, executed and delivered
      by the Company.

            (f) The authorized capital stock of the Company conforms as to legal
      matters to the description thereof contained in the Prospectus.

            (g) The outstanding shares of Common Stock (including the Firm
      Shares to be sold by the Selling Shareholders) have been duly authorized
      and are validly issued, fully paid and non-assessable.

            (h) The Additional Shares have been duly authorized and, when issued
      and delivered in accordance with the terms of this Agreement, will be
      validly issued, fully paid and non-assessable, and the issuance of such
      Shares will not be subject to any preemptive or similar rights.

            (i) The execution and delivery by the Company of, and the
      performance by the Company of its obligations under, this Agreement will
      not contravene any provision of applicable law or the certificate of
      incorporation or by-laws of the Company or any agreement or other
      instrument binding upon the Company or any of its subsidiaries that is
      material to the Company and its subsidiaries, taken as a whole, or any
      judgment, order or decree of any governmental body, agency or court having
      jurisdiction over the Company or any subsidiary, and no consent, approval,
      authorization or order of, or qualification with, any governmental body or
      agency is required for the performance by the Company of its obligations
      under this Agreement, except such as may be required by the securities or
      Blue Sky laws of the various states in connection with the offer and sale
      of the Shares.

            (j) There has not occurred any material adverse change, or any
      development involving a prospective material adverse change, in the
      condition, financial or otherwise, or in the earnings, business or
      operations of the Company and its subsidiaries, taken as a whole, from
      that set forth in the Prospectus (exclusive of any amendments or
      supplements thereto subsequent to the date of this Agreement).

            (k) There are no legal or governmental proceedings pending or
      threatened to which the Company or any of its subsidiaries is a party or
      to which any of the properties of the Company or any of its subsidiaries
      is subject that are required to be described in the Registration Statement
      or the Prospectus and are not so described or any statutes, regulations,
      contracts or other documents that are required to be described in the
      Registration Statement or the Prospectus or to be filed as exhibits to the
      Registration Statement that are not described or filed as required or
      described in a document incorporated by reference into the Registration
      Statement.

            (l) Each preliminary prospectus filed as part of the registration
      statement as originally filed or as part of any amendment thereto, or
      filed pursuant to Rule 424 under the Securities Act, complied when so
      filed in all material respects with the Securities Act and the applicable
      rules and regulations of the Commission thereunder.



                                       3


            (m) The Company is not, and after giving effect to the offering and
      sale of the Shares and the application of the proceeds thereof as
      described in the Prospectus will not be, required to register as an
      "investment company" as such term is defined in the Investment Company Act
      of 1940, as amended.

            (n) Except as disclosed in the Prospectus, the Company and its
      subsidiaries (i) are in compliance with any and all applicable foreign,
      federal, state and local laws and regulations relating to the protection
      of human health and safety, the environment or hazardous or toxic
      substances or wastes, pollutants or contaminants ("ENVIRONMENTAL LAWS"),
      (ii) have received all permits, licenses or other approvals required of
      them under applicable Environmental Laws to conduct their respective
      businesses and (iii) are in compliance with all terms and conditions of
      any such permit, license or approval, except where such noncompliance with
      Environmental Laws, failure to receive required permits, licenses or other
      approvals or failure to comply with the terms and conditions of such
      permits, licenses or approvals would not, singly or in the aggregate,
      reasonably be expected to have a material adverse effect on the Company
      and its subsidiaries, taken as a whole.

            (o) Except as disclosed in the Prospectus, there are no costs or
      liabilities associated with Environmental Laws (including, without
      limitation, any capital or operating expenditures required for clean-up,
      closure of properties or compliance with Environmental Laws or any permit,
      license or approval, any related constraints on operating activities and
      any potential liabilities to third parties) which would, singly or in the
      aggregate, reasonably be expected to have a material adverse effect on the
      Company and its subsidiaries, taken as a whole.

            (p) Except for the Registration Rights Agreement dated as of August
      22, 2002, by and among the Company, Blum Strategic Partners, L.P., Blum
      Capital Partners, L.P., Carlyle-EG&G, L.L.C. and EG&G Technical Services
      Holdings, L.L.C. (the "REGISTRATION RIGHTS AGREEMENT"), there are no
      contracts, agreements or understandings between the Company and any person
      granting such person the right to require the Company to file a
      registration statement under the Securities Act with respect to any
      securities of the Company or to require the Company to include such
      securities with the Shares registered pursuant to the Registration
      Statement.

            (q) The Company and each of its subsidiaries (i) have all necessary
      consents, authorizations, approvals, orders, certificates and permits of
      and from, and have made all declarations and filings with, all federal,
      state, local and other governmental, administrative or regulatory
      authorities, all self-regulatory organizations and all courts and other
      tribunals, to own, lease, license and use their respective properties and
      assets and to conduct their respective businesses in the manner described
      in the Prospectus, except to the extent that the failure to obtain such
      consents, authorizations, approvals, orders, certificates and permits or
      make such declarations and filings would not have a material adverse
      effect on the Company and its subsidiaries, taken as a whole, and (ii)
      have not received any notice of proceedings relating to revocation or
      modification of any such consent, authorization, approval, order,
      certificate or permit which, singly or in the aggregate, if the subject of
      an unfavorable decision, ruling or finding, would have a


                                       4


      material adverse effect on the Company and its subsidiaries, taken as a
      whole, except as described in the Prospectus.

            (r) No material labor dispute exists with the employees of the
      Company or any of its subsidiaries, except as described in or contemplated
      by the Prospectus, or, to the Company's knowledge, is imminent; and the
      Company is not aware of any existing, threatened or imminent labor
      disturbance by the employees of any of its principal suppliers,
      manufacturers or contractors that could have a material adverse effect on
      the Company and its subsidiaries, taken as a whole.

            (s) The Company and its subsidiaries have good and marketable title
      in fee simple to all real property and good and marketable title to all
      personal property owned by them which is material to their respective
      businesses, in each case free and clear of all liens, encumbrances and
      defects, except such as (i) are described in the Prospectus, (ii) do not
      materially affect the value of such property or (iii) do not interfere
      with the use made and proposed to be made of such property by them; and
      any real property and buildings held under lease by them are held under
      valid, subsisting and enforceable leases with such exceptions as are not
      material and do not materially interfere with the use made and proposed to
      be made of such property and buildings by them, in each case except as
      described in the Prospectus.

            (t) Each of the Company and its subsidiaries own, possess or can
      acquire on reasonable terms, adequate trademarks, trade names and other
      rights to inventions, know-how, patents, copyrights, confidential
      information and other intellectual property (collectively, "INTELLECTUAL
      PROPERTY RIGHTS") necessary to conduct the business now operated by them,
      or presently employed by them, and have not received any notice of
      infringement of or conflict with asserted rights of others with respect to
      any intellectual property rights that, if determined adversely to the
      Company or any of its subsidiaries would individually or in the aggregate
      reasonably be expected to have a material adverse effect on the Company
      and its subsidiaries, taken as a whole.

            (u) URS Holdings, Inc., a Delaware corporation ("URS HOLDINGS"); URS
      Group, Inc., a Delaware corporation ("URS GROUP"); URS Corporation
      Southern, a California corporation ("URS SOUTHERN"); O'Brien Kreitzberg,
      Inc., a California corporation ("OBK"); Lear Siegler Services, Inc., a
      Delaware corporation ("LEAR SIEGLER"); EG&G Technical Services, a Delaware
      corporation ("EG&G"); URS Corporation, a Nevada corporation ("URS
      NEVADA"); and URS Corporation-New York, a New York corporation ("URS NEW
      YORK") are the only significant subsidiaries of the Company (calculated on
      a basis consistent with the term "significant subsidiary" as defined under
      Regulation S-X promulgated under the Securities Act for the period ended
      July 31, 2003).

            (v) The financial statements and related notes included in the
      Registration Statement and Prospectus present fairly the financial
      position of the Company, EG&G , Lear Siegler and their consolidated
      subsidiaries as of the dates shown and their results of operations and
      cash flows for the periods shown, and such financial statements and the
      notes thereto have been prepared in conformity with the generally accepted
      accounting


                                       5


      principles in the United States applied on a consistent basis except as
      disclosed therein; and the assumptions used in preparing the pro forma
      financial statements included in the Registration Statement and Prospectus
      provide a reasonable basis for presenting the significant effects directly
      attributable to the transactions or events described therein, the related
      pro forma adjustments give appropriate effect to those assumptions, and
      the pro forma columns therein reflect the proper application of those
      adjustments to the corresponding historical financial statement amounts.

      2. Representations and Warranties of the Selling Shareholders. Each
Selling Shareholder, severally and not jointly, represents and warrants to and
agrees with each of the Underwriters that:

            (a) This Agreement has been duly authorized, executed and delivered
      by or on behalf of such Selling Shareholder.

            (b) The execution and delivery by such Selling Shareholder of, and
      the performance by such Selling Shareholder of its obligations under, this
      Agreement, the Custody Agreement signed by such Selling Shareholder and
      Mellon Investor Services, as Custodian, relating to the deposit of the
      Shares to be sold by such Selling Shareholder (the "CUSTODY AGREEMENT")
      and the Power of Attorney appointing certain individuals as such Selling
      Shareholder's attorneys-in-fact to the extent set forth therein, relating
      to the transactions contemplated hereby and by the Registration Statement
      (the "POWER OF ATTORNEY") will not contravene any provision of applicable
      law, or the certificate of incorporation or by-laws of such Selling
      Shareholder (if such Selling Shareholder is a corporation), or the limited
      liability company operating agreement of such Selling Shareholder (if such
      Selling Shareholder is a limited liability company), or the partnership
      agreement of such Selling Shareholder (if such Selling Shareholder is a
      general or limited partnership), or the organizational documents of such
      Selling Shareholder (if such Selling Shareholder is not a corporation,
      limited liability company or partnership), or any agreement or other
      instrument binding upon such Selling Shareholder or any judgment, order or
      decree of any governmental body, agency or court having jurisdiction over
      such Selling Shareholder, except for any contraventions of an agreement,
      instrument, judgment, order or decree which would not, individually or in
      the aggregate, adversely affect such Selling Shareholder's ability to
      fulfill its obligations under and consummate the transactions contemplated
      by this Agreement or result in the creation or imposition of any security
      interest, lien or other encumbrance on any of the Shares being sold by
      such Selling Shareholder under this Agreement; and no consent, approval,
      authorization or order of, or qualification with, any governmental body or
      agency is required for the performance by such Selling Shareholder of its
      obligations under this Agreement or the Custody Agreement or Power of
      Attorney of such Selling Shareholder, except such as have been obtained or
      may be required by the securities or Blue Sky laws of the various states
      in connection with the offer and sale of the Shares.

            (c) Such Selling Shareholder has, and on the Closing Date will have,
      valid title to, or a valid "security entitlement" within the meaning of
      Section 8-501 of the New York Uniform Commercial Code (the "NEW YORK UCC")
      in respect of, the Shares to be sold by such Selling Shareholder free and
      clear of all security interests, claims, liens,


                                       6


      equities or other encumbrances and the legal right and power, and all
      authorization and approval required by law, to enter into this Agreement,
      the Custody Agreement and the Power of Attorney and to sell, transfer and
      deliver the Shares to be sold by such Selling Shareholder or a security
      entitlement in respect of such Shares.

            (d) The Custody Agreement and the Power of Attorney have been duly
      authorized, executed and delivered by such Selling Shareholder and are
      valid and binding agreements of such Selling Shareholder.

            (e) Delivery of the certificates representing the Shares to be sold
      by the Selling Shareholders to the Underwriters, together with stock
      powers duly endorsed either to the Underwriters or in blank by an
      effective endorsement, and payment therefor pursuant to this Agreement
      will pass valid title to such Shares, free and clear of any "adverse
      claim" within the meaning of Section 8-102(a)(1) of the New York UCC, to
      each Underwriter who has purchased such Shares without "notice of an
      adverse claim" in respect of such Shares within the meaning of Section
      8-105 of the New York UCC.

            (f) Such Selling Shareholder is not prompted by any information
      concerning the Company or its subsidiaries which is not set forth in the
      Prospectus to sell its Shares pursuant to this Agreement.

            (g) (i) The Registration Statement, when it became effective, did
      not contain and, as amended or supplemented, if applicable, will not
      contain any untrue statement of a material fact or omit to state a
      material fact required to be stated therein or necessary to make the
      statements therein not misleading and (ii) the Prospectus does not contain
      and, as amended or supplemented, if applicable, will not contain any
      untrue statement of a material fact or omit to state a material fact
      necessary to make the statements therein, in the light of the
      circumstances under which they were made, not misleading, except that the
      representations and warranties set forth in this paragraph 2(g) only apply
      to statements in or omissions from the Registration Statement or the
      Prospectus based upon information relating to such Selling Shareholder
      furnished to the Company in writing by such Selling Shareholder
      specifically for use therein, it being understood and agreed that the only
      such information furnished to the Company by such Selling Shareholder
      consists of the name of such Selling Shareholder, the number of Firm
      Shares to be offered by such Selling Shareholder and the address and other
      information with respect to such Selling Shareholder (excluding any
      percentages), which appear under the caption "Principal and Selling
      Shareholders" in the Prospectus (the information so furnished in writing
      being hereinafter called, collectively, the "SELLING SHAREHOLDER
      INFORMATION").

      3. Agreements to Sell and Purchase. Each Seller, severally and not
jointly, hereby agrees to sell to the several Underwriters, and each
Underwriter, upon the basis of the representations and warranties herein
contained, but subject to the conditions hereinafter stated, agrees, severally
and not jointly, to purchase from such Seller at $18.3837 a share (the "PURCHASE
PRICE") the number of Firm Shares (subject to such adjustments to eliminate
fractional shares as you may determine) that bears the same proportion to the
number of Firm


                                       7


Shares to be sold by such Seller as the number of Firm Shares set forth in
Schedule II hereto opposite the name of such Underwriter bears to the total
number of Firm Shares.

      On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to sell
to the Underwriters the Additional Shares, and the Underwriters shall have the
right to purchase, severally and not jointly, up to 1,059,605 Additional Shares
at the Purchase Price. You may exercise this right on behalf of the Underwriters
in whole or from time to time in part by giving written notice of each election
to exercise the option not later than 30 days after the date of this Agreement.
Any exercise notice shall specify the number of Additional Shares to be
purchased by the Underwriters and the date on which such shares are to be
purchased. Each purchase date must be at least two business days after the
written notice is given and may not be earlier than the closing date for the
Firm Shares nor later than ten business days after the date of such notice.
Additional Shares may be purchased as provided in Section 5 hereof solely for
the purpose of covering over-allotments made in connection with the offering of
the Firm Shares. On each day, if any, that Additional Shares are to be purchased
(an "OPTION CLOSING DATE"), each Underwriter agrees, severally and not jointly,
to purchase the number of Additional Shares (subject to such adjustments to
eliminate fractional shares as you may determine) that bears the same proportion
to the total number of Additional Shares to be purchased on such Option Closing
Date as the number of Firm Shares set forth in Schedule II hereto opposite the
name of such Underwriter bears to the total number of Firm Shares.

      Each Seller hereby agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated and Credit Suisse First Boston LLC on behalf
of the Underwriters, it will not, during the period ending 90 days after the
date of the Prospectus, (i) offer, pledge, sell, contract to sell, sell any
option or contract to purchase, purchase any option or contract to sell, grant
any option, right or warrant to purchase, lend, or otherwise transfer or dispose
of, directly or indirectly, any shares of Common Stock or any securities
convertible into or exercisable or exchangeable for Common Stock or (ii) enter
into any swap or other arrangement that transfers to another, in whole or in
part, any of the economic consequences of ownership of the Common Stock, whether
any such transaction described in clause (i) or (ii) above is to be settled by
delivery of Common Stock or such other securities, in cash or otherwise.

      The restrictions contained in the preceding paragraph shall not apply to
(A) the Shares to be sold hereunder, (B) transactions by any Seller other than
the Company relating to shares of Common Stock or other securities acquired in
open market transactions after the completion of the offering of the Shares; (C)
transfers of shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock as a bona fide gift or gifts; (D)
the issuance by the Company of shares of Common Stock upon the exercise of
options granted under the Company's employee benefit plans that are outstanding
as of the date of this Agreement; (E) the grant by the Company of options to
purchase shares of Common Stock under the Company's employee benefit plans as in
effect on the date hereof, so long as such plans are described in the
Registration Statement and the Prospectus or in a document incorporated therein
by reference; (F) the issuance by the Company of shares of Common Stock under
the Company's employee stock purchase plan as in effect on the date hereof, so
long as such plan is described in the Registration Statement and the Prospectus
or in a document incorporated therein by reference; (G) transfers or
distributions of shares of Common Stock or any security convertible into or


                                       8


exercisable or exchangeable for Common Stock to such Seller's affiliates (as
defined in Rule 405 under the Securities Act); (H) in the case of any Selling
Shareholder that is a partnership, corporation or limited liability company, a
distribution of shares of Common Stock to the partners, shareholders or members
thereof; provided, that no filing by any party (transferor or transferee) under
Section 16(a) of the Securities Exchange Act of 1934, as amended, shall be
required or shall be made voluntarily in connection with such distribution
(other than a filing on a Form 5 made after the expiration of the 90-day period
referred to above); or (I) transfers by a permitted distributee or transferee of
a Selling Shareholder of Common Stock or securities convertible into or
exercisable or exchangeable for Common Stock to a family member of such
distributee or transferee of such Selling Shareholder or a trust created for the
benefit of such distributee or transferee of such Selling Shareholder or a
family member of such distributee or transferee of such Selling Shareholder
provided that in the case of any gift, transfer or distribution described in
clause (C), (G), (H) or (I) above, such donee, transferee or distributee shall,
prior to or contemporaneously with such gift, transfer or distribution, execute
and deliver to Morgan Stanley & Co. Incorporated and Credit Suisse First Boston
LLC an agreement to be bound by the restrictions set forth above. In addition,
each Selling Shareholder, agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated and Credit Suisse First Boston LLC on behalf
of the Underwriters, it will not, during the period ending 90 days after the
date of the Prospectus, make any demand for, or exercise any right with respect
to, the registration of any shares of Common Stock or any security convertible
into or exercisable or exchangeable for Common Stock.

      4. Terms of Public Offering. The Sellers are advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable. The Sellers are further
advised by you that the Shares are to be offered to the public initially at
$19.25 a share (the "PUBLIC OFFERING PRICE") and to certain dealers selected by
you at a price that represents a concession not in excess of $.56 a share under
the Public Offering Price.

      5. Payment and Delivery. Payment for the Firm Shares to be sold by each
Seller shall be made to such Seller in Federal or other funds immediately
available in New York City against delivery of such Firm Shares for the
respective accounts of the several Underwriters at 10:00 a.m., New York City
time, on September 30, 2003, or at such other time on the same or such other
date, not later than October 7, 2003, as shall be designated in writing by you.
The time and date of such payment are hereinafter referred to as the "CLOSING
DATE".

      Payment for any Additional Shares shall be made to the Company in Federal
or other funds immediately available in New York City against delivery of such
Additional Shares for the respective accounts of the several Underwriters at
10:00 a.m., New York City time, on the date specified in the corresponding
notice described in Section 3 or at such other time on the same or on such other
date, in any event not later than November 7, 2003, as shall be designated in
writing by you.

      The Firm Shares and Additional Shares shall be registered in such names
and in such denominations as you shall request in writing not later than one
full business day prior to the Closing Date or the applicable Option Closing
Date, as the case may be. The Firm Shares and Additional Shares shall be
delivered to you on the Closing Date or an Option Closing Date, as


                                       9


the case may be, for the respective accounts of the several Underwriters, with
any transfer taxes payable in connection with the transfer of the Shares to the
Underwriters duly paid, against payment of the Purchase Price therefor.

      6. Conditions to the Underwriters' Obligations. The obligations of the
Sellers to sell the Shares to the Underwriters and the several obligations of
the Underwriters to purchase and pay for the Shares on the Closing Date are
subject to the condition that no stop order suspending the effectiveness of the
Registration Statement shall have been issued under the Securities Act or
proceedings therefor initiated or threatened by the Commission.

      The several obligations of the Underwriters are subject to the following
further conditions:

            (a) Subsequent to the execution and delivery of this Agreement and
      prior to the Closing Date:

                  (i) there shall not have occurred any downgrading, nor shall
            any notice have been given of any intended or potential downgrading
            or of any review for a possible change that does not indicate the
            direction of the possible change, in the rating accorded any of the
            Company's securities by any "nationally recognized statistical
            rating organization," as such term is defined for purposes of Rule
            436(g)(2) under the Securities Act; and

                  (ii) there shall not have occurred any change, or any
            development involving a prospective change, in the condition,
            financial or otherwise, or in the earnings, business or operations
            of the Company and its subsidiaries, taken as a whole, from that set
            forth in the Prospectus (exclusive of any amendments or supplements
            thereto subsequent to the date of this Agreement) that, in your
            judgment, is material and adverse and that makes it, in your
            judgment, impracticable to market the Shares on the terms and in the
            manner contemplated in the Prospectus.

            (b) The Underwriters shall have received on the Closing Date a
      certificate, dated the Closing Date and signed by an executive officer of
      the Company, to the effect set forth in Section 6(a)(i) above and to the
      effect that the representations and warranties of the Company contained in
      this Agreement are true and correct as of the Closing Date and that the
      Company has complied with all of the agreements and satisfied all of the
      conditions on its part to be performed or satisfied hereunder on or before
      the Closing Date.

      The officer signing and delivering such certificate may rely upon the best
of his knowledge as to proceedings threatened.

            (c) The Underwriters shall have received on the Closing Date an
      opinion of Cooley Godward LLP, outside counsel for the Company, dated the
      Closing Date, to the effect that:



                                       10


                  (i) the Company has been duly incorporated, is validly
            existing as a corporation in good standing under the laws of the
            State of Delaware, has the corporate power and authority to own its
            property and to conduct its business as described in the Prospectus
            and, to such counsel's knowledge, is duly qualified to transact
            business and is in good standing in each jurisdiction in which the
            conduct of its business or its ownership or leasing of property
            requires such qualification, except to the extent that the failure
            to be so qualified or be in good standing would not have a material
            adverse effect on the Company and its subsidiaries, taken as a
            whole;

                  (ii) each of URS Holdings, URS Group, URS Southern, OBK, Lear
            Siegler and EG&G (each, a "COVERED SUBSIDIARY" and together, the
            "COVERED SUBSIDIARIES"), has been duly incorporated, is validly
            existing as a corporation in good standing under the laws of the
            jurisdiction of its incorporation, has the corporate power and
            authority to own its property and to conduct its business as
            described in the Prospectus;

                  (iii) the authorized capital stock of the Company conforms as
            to legal matters to the description thereof contained in the
            Prospectus under the caption "Description of Capital Stock" and in
            the Form 8-A dated January 30, 1984 under the caption "Description
            of Capital Stock" (which incorporates by reference the description
            of the Common Stock contained in the Registration Statement on Form
            S-1 filed on February 28, 1983);

                  (iv) the outstanding shares of Common Stock (including the
            Firm Shares to be sold by the Selling Shareholders) have been duly
            authorized and are validly issued, fully paid and non-assessable;

                  (v) the Additional Shares have been duly authorized and, when
            issued and delivered in accordance with the terms of this Agreement,
            will be validly issued, fully paid and non-assessable, and the
            issuance of such Shares will not be subject to any preemptive rights
            or, to such counsel's knowledge, similar rights;

                  (vi) this Agreement has been duly authorized, executed and
            delivered by the Company;

                  (vii) the execution and delivery by the Company of, and the
            performance by the Company of its obligations under, this Agreement
            will not contravene any provision of applicable law (except for
            Section 9 relating to indemnity as to which such counsel need not
            express any opinion) or the certificate of incorporation or by-laws
            of the Company or any agreement or other instrument binding upon the
            Company or any of its subsidiaries that is (A) filed as an exhibit
            to the Registration Statement or any document incorporated by
            reference therein, (B) incorporated by reference in the Registration
            Statement or (C) which the Company has advised such counsel will be
            filed as an exhibit to the Company's next annual report on Form 10-K
            and which was executed by the Company prior to the date of such
            opinion or, to the best of such counsel's


                                       11


            knowledge, any judgment, order or decree of any governmental body,
            agency or court having jurisdiction over the Company or any
            subsidiary, and no consent, approval, authorization or order of, or
            qualification with, any governmental body or agency is required for
            the performance by the Company of its obligations under this
            Agreement, except such as have been made or obtained or except such
            as may be required by the securities or Blue Sky laws of the various
            states in connection with the offer and sale of the Shares;

                  (viii) the statements in (A) the Prospectus under the captions
            "Description of Capital Stock" and "Underwriters" and (B) the
            Registration Statement in Item 15, in each case insofar as such
            statements constitute matters of law, summaries of legal matters,
            provisions of the Company's certificate of incorporation or by-laws
            or other equivalent corporate governance documents or legal
            proceedings, or legal conclusions, have been reviewed by such
            counsel and fairly present and summarize, in all material respects,
            the matters referred to therein;

                  (ix) after due inquiry, such counsel does not know of any
            legal or governmental proceedings pending or overtly threatened to
            which the Company or any of its subsidiaries is a party or to which
            any of the properties of the Company or any of its subsidiaries is
            subject that are required to be described in the Registration
            Statement or the Prospectus and are not so described or of any
            statutes, regulations, contracts or other documents that are
            required to be described in the Registration Statement or the
            Prospectus or to be filed as exhibits to the Registration Statement
            that are not described or filed or described in documents
            incorporated by reference in the Registration Statement as required;

                  (x) the Company is not, and after giving effect to the
            offering and sale of the Shares and the application of the proceeds
            thereof as described in the Prospectus will not be, required to
            register as an "investment company" as such term is defined in the
            Investment Company Act of 1940, as amended; and

                  (xi) to such counsel's knowledge, (A) each document filed
            pursuant to the Exchange Act and incorporated by reference in the
            Registration Statement or the Prospectus (except for the financial
            statements and financial schedules and other financial and
            statistical data derived therefrom, as to which such counsel need
            not express any belief) complied as to form when filed in all
            material respects with the requirements of the Exchange Act, and the
            applicable rules and regulations of the Commission thereunder and
            (B) the Registration Statement or the Prospectus (except for the
            financial statements and financial schedules and other financial and
            statistical data derived therefrom, as to which such counsel need
            not express any belief) complied as to form in all material respects
            with the requirements of the Securities Act and the applicable rules
            and regulations of the Commission thereunder. In addition, such
            counsel shall confirm that such counsel has participated in
            conferences with officers and other representatives of the Company
            and the independent public accountants of the Company and
            representatives of the Underwriters at which conferences the
            contents of the


                                       12


            Registration Statement and Prospectus were discussed and, although
            such counsel is not passing upon and does not assume responsibility
            for the accuracy, completeness or fairness of the statements
            contained in the Registration Statements or Prospectus (except as
            and to the extent stated in subparagraphs ((iii) and (viii) above),
            on the basis of the foregoing, nothing has come to the attention of
            such counsel that causes such counsel to believe that the
            Registration Statement or the prospectus included therein (except
            for the financial statements and financial schedules and other
            financial and statistical data derived therefrom, as to which such
            counsel need not express any belief) at the time the Registration
            Statement became effective contained an untrue statement of a
            material fact or omitted to state a material fact required to be
            stated therein or necessary to make the statements therein not
            misleading or the Prospectus (except for the financial statements
            and financial schedules and other financial and statistical data
            derived therefrom, as to which such counsel need not express any
            belief) as of its date or as of the date of such opinion contained
            or contains an untrue statement of a material fact or omitted or
            omits to state a material fact necessary in order to make the
            statements therein, in the light of the circumstances under which
            they were made, not misleading.

            (d) The Underwriters shall have received on the Closing Date an
      opinion of Woodburn and Wedge, special Nevada counsel for the Company,
      dated the Closing Date, to the effect that:

                  (i) URS Nevada has been duly incorporated, is validly existing
            as a corporation in good standing under the laws of the State of
            Nevada, has the corporate power and authority to own its property
            and to conduct its business as described in the Prospectus.

            (e) The Underwriters shall have received on the Closing Date an
      opinion of Skadden, Arps, Slate, Meagher & Flom LLP, special New York
      counsel for the Company, dated the Closing Date, to the effect that:

                  (i) URS New York is validly existing in good standing under
            the laws of the State of New York. URS New York is in good standing
            in the other jurisdictions set forth on a schedule to such counsel's
            opinion.

            (f) The Underwriters shall have received on the Closing Date an
      opinion of Latham & Watkins LLP, counsel for the Selling Shareholders,
      dated the Closing Date, to the effect that:

                  (i) this Agreement has been duly executed and delivered by an
            attorney in fact under the Power of Attorney on behalf of each of
            the Selling Shareholders;

                  (ii) the execution and delivery by each Selling Shareholder of
            the Custody Agreement and Power of Attorney of such Selling
            Shareholder and the sale of the Shares by such Selling Shareholder
            pursuant to this Agreement will not


                                       13


            contravene any provision of the limited liability company operating
            agreement of such Selling Shareholder;

                  (iii) each of the Selling Shareholders is the owner of record
            of the Shares to be sold by such Selling Shareholder and each of the
            Selling Shareholders has all authorization and approval required by
            law, to enter into this Agreement and the Custody Agreement and
            Power of Attorney of such Selling Shareholder and to sell, transfer
            and deliver the Shares to be sold by such Selling Shareholder;

                  (iv) the Custody Agreement and the Power of Attorney of each
            Selling Shareholder have been duly executed and delivered by such
            Selling Shareholder and this Agreement, the Custody Agreement and
            the Power of Attorney of each Selling Shareholder have been duly
            authorized by such Selling Shareholder and are valid and binding
            agreements of such Selling Shareholder; and

                  (v) upon physical delivery of the certificates evidencing the
            Shares held by the Selling Shareholders in registered form listed on
            Schedule I hereto to the Underwriters in the State of New York with
            stock powers duly endorsed either to the Underwriters or in blank by
            an effective endorsement, and upon payment therefor in accordance
            with the terms of this Agreement, the Underwriters will become
            "protected purchasers" (as defined in Section 8-303(a) of the New
            York UCC) of such Shares, free of any "adverse claim" (as defined in
            Section 8-102(a)(1) of the New York UCC) with respect thereto.

            (g) The Underwriters shall have received on the Closing Date an
      opinion of Sidley Austin Brown & Wood LLP, counsel for the Underwriters,
      dated the Closing Date, covering the matters referred to in Sections
      6(c)(v), 6(c)(vi), 6(c)(viii) (but only as to the statements in the
      Prospectus under "Description of Capital Stock" and "Underwriters") and
      Section 6(c)(xi) (other than clause (A)) above.

      With respect to Section 6(f) above, Latham & Watkins LLP may rely upon an
opinion or opinions of counsel for any Selling Shareholders (other than for TCG
Holdings, L.L.C.) and, with respect to factual matters and to the extent such
counsel deems appropriate, upon the representations of each Selling Shareholder
contained herein and in the Custody Agreement and Power of Attorney of such
Selling Shareholder and in other documents and instruments; provided that (A)
each such counsel for the Selling Shareholders is satisfactory to your counsel,
(B) a copy of each opinion so relied upon is delivered to you and is in form and
substance satisfactory to your counsel, (C) copies of such Custody Agreements
and Powers of Attorney and of any such other documents and instruments shall be
delivered to you and shall be in form and substance satisfactory to your counsel
and (D) Latham & Watkins LLP shall state in their opinion that they are
justified in relying on each such other opinion.

      The opinions of Cooley Godward LLP, Woodburn and Wedge, Skadden, Arps,
Slate, Meagher & Flom LLP and Latham & Watkins LLP described in Sections 6(c),
6(d), 6(e) and 6(f) above (and any opinions of counsel for any Selling
Shareholder referred to in the immediately


                                       14


preceding paragraph) shall be rendered to the Underwriters at the request of the
Company or one or more of the Selling Shareholders, as the case may be, and
shall so state therein.

            (h) The Underwriters shall have received, on each of the date hereof
      and the Closing Date, letters dated the date hereof or the Closing Date,
      as the case may be, in form and substance satisfactory to the
      Underwriters, from PricewaterhouseCoopers LLP and Ernst & Young LLP,
      independent public accountants, containing statements and information of
      the type ordinarily included in accountants' "comfort letters" to
      underwriters with respect to the financial statements and certain
      financial information contained in, or incorporated by reference into, the
      Registration Statement and the Prospectus; provided that the letters
      delivered on the Closing Date shall use a "cut-off date" not earlier than
      the date hereof.

            (i) The "lock-up" agreements, each substantially in the form of
      Exhibit A hereto, between you and certain shareholders, officers and
      directors of the Company relating to sales and certain other dispositions
      of shares of Common Stock or certain other securities, delivered to you on
      or before the date hereof, shall be in full force and effect on the
      Closing Date.

            (j) The Underwriters shall have received on the Closing Date a
      certificate, dated the Closing Date and signed by the chief financial
      officer of the Company, certifying as to the preparation, completeness and
      accuracy of the pro forma financial information included in the Prospectus
      under the caption "Summary Financial Data" and in the Unaudited Pro Forma
      Condensed Combined Statements of Operations and certain other financial
      and statistical data relating to the Company included in the Prospectus.

      The several obligations of the Underwriters to purchase Additional Shares
hereunder are subject to the delivery to you on the applicable Option Closing
Date of such documents as you may reasonably request with respect to the good
standing of the Company, the due authorization and issuance of the Additional
Shares to be sold on such Option Closing Date and other matters related to the
issuance of such Additional Shares.

      7. Covenants of the Company. In further consideration of the agreements of
the Underwriters herein contained, the Company covenants with each Underwriter
as follows:

            (a) To furnish to you, without charge, four signed copies of the
      Registration Statement (including exhibits thereto and documents
      incorporated by reference) and for delivery to each other Underwriter a
      conformed copy of the Registration Statement (without exhibits thereto but
      including documents incorporated by reference) and to furnish to you in
      New York City, without charge, prior to 10:00 a.m. New York City time on
      the business day next succeeding the date of this Agreement and during the
      period mentioned in Section 7(c) below, as many copies of the Prospectus,
      any documents incorporated by reference, and any supplements and
      amendments thereto or to the Registration Statement as you may reasonably
      request. The terms "supplement" and "amendment" or "amend" as used in this
      Agreement shall include all documents subsequently filed by the Company
      with the Commission pursuant to the Exchange Act that are deemed to be
      incorporated by reference in the Prospectus.



                                       15


            (b) Before amending or supplementing the Registration Statement or
      the Prospectus, to furnish to you a copy of each such proposed amendment
      or supplement and not to file any such proposed amendment or supplement to
      which you reasonably object, and to file with the Commission within the
      applicable period specified in Rule 424(b) under the Securities Act any
      prospectus required to be filed pursuant to such Rule.

            (c) If, during such period after the first date of the public
      offering of the Shares as in the opinion of counsel for the Underwriters
      the Prospectus is required by law to be delivered in connection with sales
      by an Underwriter or dealer, any event shall occur or condition exist as a
      result of which it is necessary to amend or supplement the Prospectus in
      order to make the statements therein, in the light of the circumstances
      when the Prospectus is delivered to a purchaser, not misleading, or if, in
      the opinion of counsel for the Underwriters, it is necessary to amend or
      supplement the Prospectus to comply with applicable law, forthwith to
      prepare, file with the Commission and furnish, at its own expense, to the
      Underwriters and to the dealers (whose names and addresses you will
      furnish to the Company) to which Shares may have been sold by you on
      behalf of the Underwriters and to any other dealers upon request, either
      amendments or supplements to the Prospectus so that the statements in the
      Prospectus as so amended or supplemented will not, in the light of the
      circumstances when the Prospectus is delivered to a purchaser, be
      misleading or so that the Prospectus, as amended or supplemented, will
      comply with law.

            (d) To endeavor to qualify the Shares for offer and sale under the
      securities or Blue Sky laws of such jurisdictions as you shall reasonably
      request.

            (e) To make generally available to the Company's security holders
      and to you as soon as practicable an earning statement covering the
      twelve-month period ending October 31, 2004 that satisfies the provisions
      of Section 11(a) of the Securities Act and the rules and regulations of
      the Commission thereunder.

      8. Expenses. Whether or not the transactions contemplated in this
Agreement are consummated or this Agreement is terminated, the Company agrees to
pay or cause to be paid all expenses incident to the performance of Sellers'
obligations under this Agreement, including: (i) the fees, disbursements and
expenses of the Company's counsel and the Company's accountants in connection
with the registration and delivery of the Shares under the Securities Act and
all other fees or expenses in connection with the preparation and filing of the
Registration Statement, any preliminary prospectus, the Prospectus and
amendments and supplements to any of the foregoing, including all printing costs
associated therewith, and the mailing and delivering of copies thereof to the
Underwriters and dealers, in the quantities hereinabove specified, (ii) the
reasonable out-of-pocket expenses and, as to in-house counsel, allocated costs
of the Carlyle Holders (as defined in the Registration Rights Agreement) of Firm
Shares incurred in connection with the Registration Statement and Prospectus
including, without limitation, the reasonable fees and disbursements of not more
than one outside counsel and one in-house counsel (who may be employed by an
Affiliate (as defined in the Registration Statement) of a Carlyle Holder) for
the Carlyle Holders chosen by the Carlyle Holders holding a majority of the Firm
Shares owned by the Carlyle Holders, (iii) all costs and expenses related to the
transfer and delivery of the Shares to the Underwriters, including any transfer
or other taxes payable thereon, (iv) the cost of


                                       16


printing or producing any Blue Sky or Legal Investment memorandum in connection
with the offer and sale of the Shares under state securities laws and all
expenses in connection with the qualification of the Shares for offer and sale
under state securities laws as provided in Section 7(d) hereof, including filing
fees and the reasonable fees and disbursements of counsel for the Underwriters
in connection with such qualification and in connection with the Blue Sky or
Legal Investment memorandum, (v) all filing fees and the reasonable fees and
disbursements of counsel to the Underwriters incurred in connection with the
review and qualification of the offering of the Shares by the National
Association of Securities Dealers, Inc., (vi) all costs and expenses incident to
listing the Shares on the NYSE and the Pacific Exchange, (vii) the cost of
printing certificates representing the Shares, (viii) the costs and charges of
any transfer agent, registrar or depositary, (ix) the costs and expenses of the
Company relating to investor presentations on any "road show" undertaken in
connection with the marketing of the offering of the Shares, including, without
limitation, expenses associated with the production of road show slides and
graphics, fees and expenses of any consultants engaged in connection with the
road show presentations with the prior approval of the Company, travel and
lodging expenses of the representatives and officers of the Company and any such
consultants, and the cost of any aircraft chartered in connection with the road
show, (x) the document production charges and expenses associated with printing
this Agreement and (xi) all other costs and expenses incident to the performance
of the obligations of the Sellers hereunder for which provision is not otherwise
made in this Section. It is understood, however, that (A) except as provided in
this Section, Section 9 entitled "Indemnity and Contribution", and the last
paragraph of Section 11 below, the Underwriters will pay all of their costs and
expenses, including fees and disbursements of their counsel, stock transfer
taxes payable on resale of any of the Shares by them and any advertising
expenses connected with any offers they may make and (B) the Company shall not
pay or cause to be paid any underwriting discounts or commissions or any
transfer taxes payable in respect of the sale of Firm Shares, which such
expenses shall be paid or borne by the Sellers thereof. Whether or not the
transactions contemplated in this Agreement are consummated or this Agreement is
terminated, to the extent that any expenses incident to the performance of the
Selling Shareholders' obligations under this Agreement are not payable by the
Company pursuant to this Section 8, such expenses shall be paid by the Selling
Shareholders.

      The provisions of this Section shall not supersede or otherwise affect any
agreement that the Sellers may otherwise have for the allocation of such
expenses among themselves.

      9. Indemnity and Contribution. (a) The Company agrees to indemnify and
hold harmless each Underwriter, each person, if any, who controls any
Underwriter within the meaning of either Section 15 of the Securities Act or
Section 20 of the Exchange Act, and each affiliate of any Underwriter within the
meaning of Rule 405 under the Securities Act, from and against any and all
losses, claims, damages and liabilities (including, without limitation, any
legal or other expenses reasonably incurred in connection with defending or
investigating any such action or claim) caused by any untrue statement or
alleged untrue statement of a material fact contained in the Registration
Statement or any amendment thereof, any preliminary prospectus or the Prospectus
(as amended or supplemented if the Company shall have furnished any amendments
or supplements thereto), or caused by any omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make the
statements therein not misleading, except insofar as such losses, claims,
damages or liabilities are caused by any such untrue statement or omission or
alleged untrue statement or omission based upon


                                       17


information relating to any Underwriter furnished to the Company in writing by
such Underwriter through you expressly for use therein; provided, however, that
the foregoing indemnity agreement with respect to any preliminary prospectus
shall not inure to the benefit of any Underwriter from whom the person asserting
any such losses, claims, damages or liabilities purchased Shares, or any person
controlling such Underwriter, if a copy of the Prospectus (as then amended or
supplemented if the Company shall have furnished any amendments or supplements
thereto) was not sent or given by or on behalf of such Underwriter to such
person, if required by law so to have been delivered, at or prior to the written
confirmation of the sale of the Shares to such person, and if the Prospectus (as
so amended or supplemented) would have cured the defect giving rise to such
losses, claims, damages or liabilities, unless such failure is the result of
noncompliance by the Company with Section 7(a) hereof.

      (b) The Company agrees to indemnify and hold harmless each Selling
Shareholder, each person, if any, who controls any Selling Shareholder within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act, and each affiliate of any Selling Shareholder within the meaning
of Rule 405 under the Securities Act, from and against any and all losses,
claims, damages and liabilities (including, without limitation, any legal or
other expenses reasonably incurred in connection with defending or investigating
any such action or claim) caused by any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement or any
amendment thereof, any preliminary prospectus or the Prospectus (as amended or
supplemented if the Company shall have furnished any amendments or supplements
thereto), or caused by any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, except insofar as such losses, claims, damages or
liabilities are caused by any such untrue statement or omission or alleged
untrue statement or omission based upon Selling Shareholder Information relating
to such Selling Shareholder.

      (c) Each Selling Shareholder agrees, severally and not jointly, to
indemnify and hold harmless the Company, the directors of the Company, the
officers of the Company who sign the Registration Statement, each Underwriter,
and each person, if any, who controls the Company or any Underwriter within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act and each affiliate of any Underwriter within the meaning of Rule 405 under
the Securities Act, from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
but only with reference to Selling Shareholder Information relating to such
Selling Shareholder; provided, further, that the liability under this subsection
(c) of any Selling Shareholder shall be limited to an amount equal to the gross
proceeds, before underwriting commissions and discounts and expenses, to such
Selling Shareholder from the sale of Shares sold by such Selling Shareholder
hereunder; and provided, further, that the foregoing indemnity agreement with
respect to any preliminary prospectus shall not inure to the benefit of any
Underwriter from whom the person asserting any such losses, claims, damages or
liabilities purchased Shares, or any person controlling such Underwriter, if a
copy of the Prospectus (as


                                       18


then amended or supplemented if the Company shall have furnished any amendments
or supplements thereto) was not sent or given by or on behalf of such
Underwriter to such person, if required by law so to have been delivered, at or
prior to the written confirmation of the sale of the Shares to such person, and
if the Prospectus (as so amended or supplemented) would have cured the defect
giving rise to such losses, claims, damages or liabilities, unless such failure
is the result of noncompliance by the Company with Section 7(a) hereof.

      (d) Each Underwriter agrees, severally and not jointly, to indemnify and
hold harmless the Company, the Selling Shareholders, the directors of the
Company, the officers of the Company who sign the Registration Statement and
each person, if any, who controls the Company or any Selling Shareholder within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
but only with reference to information relating to such Underwriter furnished to
the Company in writing by such Underwriter through you expressly for use in the
Registration Statement, any preliminary prospectus, the Prospectus or any
amendments or supplements thereto.

      (e) In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to Section 9(a), 9(b), 9(c) or 9(d), such person (the
"INDEMNIFIED PARTY") shall promptly notify the person against whom such
indemnity may be sought (the "INDEMNIFYING PARTY") in writing and the
indemnifying party, upon request of the indemnified party, shall retain counsel
reasonably satisfactory to the indemnified party to represent the indemnified
party and any others the indemnifying party may designate in such proceeding and
shall pay the fees and disbursements of such counsel related to such proceeding.
In any such proceeding, any indemnified party shall have the right to retain its
own counsel, but the fees and expenses of such counsel shall be at the expense
of such indemnified party unless (i) the indemnifying party and the indemnified
party shall have mutually agreed to the retention of such counsel or (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the indemnifying party and the indemnified party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them. It is understood that the indemnifying party
shall not, in respect of the legal expenses of any indemnified party in
connection with any proceeding or related proceedings in the same jurisdiction,
be liable for (i) the fees and expenses of more than one separate firm (in
addition to any local counsel) for all Underwriters and all persons, if any, who
control any Underwriter within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act or who are affiliates of any
Underwriter within the meaning of Rule 405 under the Securities Act, (ii) the
fees and expenses of more than one separate firm (in addition to any local
counsel) for the Company, its directors, its officers who sign the Registration
Statement and each person, if any, who controls the Company within the meaning
of either such Section and (iii) the fees and expenses of more than one separate
firm (in addition to any local counsel) for all Selling Shareholders and all
persons, if any, who control


                                       19


any Selling Shareholder within the meaning of either such Section, and that all
such fees and expenses shall be reimbursed as they are incurred. In the case of
any such separate firm for the Underwriters and such control persons and
affiliates of any Underwriters, such firm shall be designated in writing by
Morgan Stanley & Co. Incorporated and Credit Suisse First Boston LLC. In the
case of any such separate firm for the Company, and such directors, officers and
control persons of the Company, such firm shall be designated in writing by the
Company. In the case of any such separate firm for the Selling Shareholders and
such control persons of any Selling Shareholders, such firm shall be designated
in writing by the persons named as attorneys-in-fact for the Selling
Shareholders under the Powers of Attorney. The indemnifying party shall not be
liable for any settlement of any proceeding effected without its written
consent, but if settled with such consent or if there be a final judgment for
the plaintiff, the indemnifying party agrees to indemnify the indemnified party
from and against any loss or liability by reason of such settlement or judgment.
Notwithstanding the foregoing sentence, if at any time an indemnified party
shall have requested an indemnifying party to reimburse the indemnified party
for fees and expenses of counsel as contemplated by the second and third
sentences of this paragraph, the indemnifying party agrees that it shall be
liable for any settlement of any proceeding effected without its written consent
if (i) such settlement is entered into more than 30 days after receipt by such
indemnifying party of the aforesaid request and has not been objected to by such
indemnifying party within such 30 day period and (ii) such indemnifying party
shall not have reimbursed the indemnified party in accordance with such request
prior to the date of such settlement. No indemnifying party shall, without the
prior written consent of the indemnified party, effect any settlement of any
pending or threatened proceeding in respect of which any indemnified party is or
could have been a party and indemnity could have been sought hereunder by such
indemnified party, unless such settlement includes an unconditional release of
such indemnified party from all liability on claims that are the subject matter
of such proceeding.

      (f) To the extent the indemnification provided for in Section 9(a), 9(b),
9(c) or 9(d) is unavailable to an indemnified party or insufficient in respect
of any losses, claims, damages or liabilities referred to therein, then each
indemnifying party under such paragraph, in lieu of indemnifying such
indemnified party thereunder, shall contribute to the amount paid or payable by
such indemnified party as a result of such losses, claims, damages or
liabilities (i) in such proportion as is appropriate to reflect the relative
benefits received by the indemnifying party or parties on the one hand and the
indemnified party or parties on the other hand from the offering of the Shares
or (ii) if the allocation provided by clause 9(f)(i) above is not permitted by
applicable law, in such proportion as is appropriate to reflect not only the
relative benefits referred to in clause 9(f)(i) above but also the relative
fault of the indemnifying party or parties on the one hand and of the
indemnified party or parties on the other hand in connection with the statements
or omissions that resulted in such losses, claims, damages or liabilities, as
well as any other relevant equitable considerations. The relative benefits
received by the Sellers on the one hand and the Underwriters on the other hand
in connection with the offering of the Shares shall be deemed to be in the same
respective proportions as the net proceeds from the offering of the Shares
(before deducting expenses) received by each Seller and the total underwriting
discounts and commissions received by the Underwriters, in each case as set
forth in the table on the cover of the Prospectus, bear to the aggregate Public
Offering Price of the Shares. The relative fault of the Sellers on the one hand
and the Underwriters on the other hand shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of a material
fact or the omission or alleged omission to state a material fact relates to
information supplied by


                                       20


the Sellers or by the Underwriters and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission. The Underwriters' respective obligations to contribute pursuant to
this Section 9 are several in proportion to the respective number of Shares they
have purchased hereunder, and not joint.

      (g) The Sellers and the Underwriters agree that it would not be just or
equitable if contribution pursuant to this Section 9 were determined by pro rata
allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in Section 9(f). The amount paid or payable
by an indemnified party as a result of the losses, claims, damages and
liabilities referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. Notwithstanding the
provisions of this Section 9, no Underwriter shall be required to contribute any
amount in excess of the amount by which the total price at which the Shares
underwritten by it and distributed to the public were offered to the public
exceeds the amount of any damages that such Underwriter has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission. Furthermore, the liability of each Selling Shareholder to
contribute under subsection (f) of this Section 9 shall be limited to an amount
equal to (i) the gross proceeds, before underwriting commissions and discounts
and expenses, to such Selling Shareholder from the sale of Firm Shares sold by
such Selling Shareholder hereunder less (ii) any amounts which such Selling
Shareholder has paid under Section 9(c) hereof. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation. The remedies provided for in this Section 9 are
not exclusive and shall not limit any rights or remedies which may otherwise be
available to any indemnified party at law or in equity.

      (h) The indemnity and contribution provisions contained in this Section 9
and the representations, warranties and other statements of the Company and the
Selling Shareholders contained in this Agreement shall remain operative and in
full force and effect regardless of (i) any termination of this Agreement, (ii)
any investigation made by or on behalf of any Underwriter, any person
controlling any Underwriter or any affiliate of any Underwriter, any Selling
Shareholder or any person controlling any Selling Shareholder, or the Company,
its officers or directors or any person controlling the Company and (iii)
acceptance of and payment for any of the Shares.

      10. Termination. The Underwriters may terminate this Agreement by notice
given by you to the Company, if after the execution and delivery of this
Agreement and prior to the Closing Date (i) trading generally shall have been
suspended or materially limited on, or by, as the case may be, any of the New
York Stock Exchange, the American Stock Exchange, the Nasdaq National Market,
the Chicago Board of Options Exchange, the Chicago Mercantile Exchange, the
Chicago Board of Trade or the Pacific Exchange, (ii) trading of any securities
of the Company shall have been suspended on any exchange or in any
over-the-counter market, (iii) a material disruption in securities settlement,
payment or clearance services in the United States shall have occurred, (iv) any
moratorium on commercial banking activities shall have been declared by Federal
or New York State authorities or (v) there shall have occurred any outbreak


                                       21


or escalation of hostilities, or any change in financial markets, currency
exchange rates or controls or any calamity or crisis that, in your judgment, is
material and adverse and which, singly or together with any other event
specified in this clause (v), makes it, in your judgment, impracticable or
inadvisable to proceed with the offer, sale or delivery of the Shares on the
terms and in the manner contemplated in the Prospectus.

      11. Effectiveness; Defaulting Underwriters. This Agreement shall become
effective upon the execution and delivery hereof by the parties hereto.

      If, on the Closing Date or an Option Closing Date, as the case may be, any
one or more of the Underwriters shall fail or refuse to purchase Shares that it
has or they have agreed to purchase hereunder on such date, and the aggregate
number of Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase is not more than one-tenth of the aggregate number
of the Shares to be purchased on such date, the other Underwriters shall be
obligated severally in the proportions that the number of Firm Shares set forth
opposite their respective names in Schedule II bears to the aggregate number of
Firm Shares set forth opposite the names of all such non-defaulting
Underwriters, or in such other proportions as you may specify, to purchase the
Shares which such defaulting Underwriter or Underwriters agreed but failed or
refused to purchase on such date; provided that in no event shall the number of
Shares that any Underwriter has agreed to purchase pursuant to this Agreement be
increased pursuant to this Section 11 by an amount in excess of one-ninth of
such number of Shares without the written consent of such Underwriter. If, on
the Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Firm Shares and the aggregate number of Firm Shares with respect to
which such default occurs is more than one-tenth of the aggregate number of Firm
Shares to be purchased, and arrangements satisfactory to you, the Company and
the Selling Shareholders for the purchase of such Firm Shares are not made
within 36 hours after such default, this Agreement shall terminate without
liability on the part of any non-defaulting Underwriter, the Company or the
Selling Shareholders. In any such case either you or the relevant Sellers shall
have the right to postpone the Closing Date, but in no event for longer than
seven days, in order that the required changes, if any, in the Registration
Statement and in the Prospectus or in any other documents or arrangements may be
effected. If, on an Option Closing Date, any Underwriter or Underwriters shall
fail or refuse to purchase Additional Shares and the aggregate number of
Additional Shares with respect to which such default occurs is more than
one-tenth of the aggregate number of Additional Shares to be purchased on such
Option Closing Date, the non-defaulting Underwriters shall have the option to
(i) terminate their obligation hereunder to purchase the Additional Shares to be
sold on such Option Closing Date or (ii) purchase not less than the number of
Additional Shares that such non-defaulting Underwriters would have been
obligated to purchase in the absence of such default. Any action taken under
this paragraph shall not relieve any defaulting Underwriter from liability in
respect of any default of such Underwriter under this Agreement.

      If this Agreement shall be terminated by the Underwriters, or any of them,
because of any failure or refusal on the part of any Seller to comply with the
terms or to fulfill any of the conditions of this Agreement, or if for any
reason any Seller shall be unable to perform its obligations under this
Agreement, the Sellers will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably


                                       22


incurred by such Underwriters in connection with this Agreement or the offering
contemplated hereunder.

      12. Counterparts. This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

      13. Applicable Law. This Agreement shall be governed by and construed in
accordance with the internal laws of the State of New York.

      14. Headings. The headings of the sections of this Agreement have been
inserted for convenience of reference only and shall not be deemed a part of
this Agreement.

                            [SIGNATURE PAGE FOLLOWS]








                                       23


                                    Very truly yours,

                                    URS CORPORATION



                                    By:   /s/ Kent P. Ainsworth
                                        ---------------------------------------
                                        Name:  Kent P. Ainsworth
                                        Title: Executive Vice President and
                                               Chief Financial Officer


                                    The Selling Shareholders,
                                    acting severally



                                    By:   /s/ Joseph E. Lipscomb
                                        ---------------------------------------
                                        Attorney-in-Fact




                                       24


Accepted as of the date hereof

Morgan Stanley & Co. Incorporated
Credit Suisse First Boston LLC
Lehman Brothers Inc.

Acting severally on behalf of themselves
     and the several Underwriters named in
     Schedule II hereto.

By:  Morgan Stanley & Co. Incorporated



By:    /s/ Bryan Andrzejewski
     ------------------------------------
     Name:  Bryan Andrzejewski
     Title: Executive Director





                                       25


                                                                      SCHEDULE I






                                                                     NUMBER OF
                                                                    FIRM SHARES
SELLING SHAREHOLDER                                                  TO BE SOLD
                                                                 

Carlyle-EG&G, L.L.C.                                                 5,264,807

EG&G Technical Services Holdings, L.L.C.                             1,799,226

                                                                    ----------
      Total.....................................................     7,064,033
                                                                    ==========






                                       26


                                                                     SCHEDULE II






                                                                    NUMBER OF
                                                                   FIRM SHARES
                                                                     TO BE
UNDERWRITERS                                                        PURCHASED
                                                                

Morgan Stanley & Co. Incorporated                                    2,483,008

Credit Suisse First Boston LLC                                       2,214,574

Lehman Brothers Inc.                                                 2,013,249

D. A. Davidson & Co.                                                   235,233

Morgan Joseph & Co. Inc.                                               117,969


                                                                    ----------
      Total.....................................................     7,064,033
                                                                    ==========






                                       27

                                                                       EXHIBIT A




                            [FORM OF LOCK-UP LETTER]



                                                               September -, 2003

Morgan Stanley & Co. Incorporated
Credit Suisse First Boston LLC
Lehman Brothers Inc.
c/o Morgan Stanley & Co. Incorporated
   1585 Broadway
   New York, NY  10036

Dear Sirs and Mesdames:

      The undersigned understands that Morgan Stanley & Co. Incorporated
("MORGAN STANLEY") and Credit Suisse First Boston LLC ("CREDIT SUISSE") propose
to enter into an Underwriting Agreement (the "UNDERWRITING AGREEMENT") with URS
Corporation, a Delaware corporation (the "COMPANY"), providing for the public
offering (the "PUBLIC OFFERING") by the several Underwriters, including Morgan
Stanley and Credit Suisse (the "Underwriters"), of 7,064,033 shares (the
"Shares") of the common stock, par value $0.01 per share, of the Company (the
"COMMON STOCK").

      To induce the Underwriters that may participate in the Public Offering to
continue their efforts in connection with the Public Offering, the undersigned
hereby agrees that, without the prior written consent of Morgan Stanley and
Credit Suisse on behalf of the Underwriters, it will not, during the period
commencing on the date hereof and ending the earlier of (x) 90 days after the
date of the final prospectus relating to the Public Offering (the "PROSPECTUS"),
and (y) if the Underwriting Agreement has not been executed by the parties
thereto by October 31, 2003, October 31, 2003, (1) offer, pledge, sell, contract
to sell, sell any option or contract to purchase, purchase any option or
contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any shares of Common
Stock or any securities convertible into or exercisable or exchangeable for
Common Stock, or (2) enter into any swap or other arrangement that transfers to
another, in whole or in part, any of the economic consequences of ownership of
the Common Stock, whether any such transaction described in clause (1) or (2)
above is to be settled by delivery of Common Stock or such other securities, in
cash or otherwise. The foregoing sentence shall not apply to (a) the sale of any
Shares to the Underwriters pursuant to the Underwriting Agreement; (b)
transactions relating to shares of Common Stock or other securities acquired in
open market transactions after the completion of the offering of the Shares; (c)
transfers of shares of Common Stock or any security convertible into or
exercisable or exchangeable for Common Stock as a bona fide gift or gifts; (d)
transfers



                                       A-1


or distributions of shares of Common Stock, or any security convertible into or
exercisable or exchangeable for Common Stock, to affiliates (as defined in Rule
405 under the Securities Act); (e) transfers to the Company of shares of Common
Stock to pay the exercise price of stock options granted to the undersigned
under the Company's employee stock option plans (provided that the shares so
transferred are not sold or otherwise disposed of by the Company) and transfers
of shares of Common Stock to the Company so long as the proceeds from such
transfers are applied solely to pay withholding taxes due with respect to the
exercise by the undersigned of any such stock options or with respect to the
vesting of restricted stock granted to the undersigned under the Company's
restricted stock plan; and (f) transfers by the undersigned or its permitted
distributee or transferee of Common Stock or securities convertible into or
exercisable or exchangeable for Common Stock to a family member of the
undersigned or of such distributee or transferee or a trust created for the
benefit of the undersigned or such distributee or transferee or a family member
of the undersigned or such distributee or transferee; provided that in the case
of any gift, transfer or distribution referred to in clause (c), (d) or (f)
above, such donee, transferee or distributee shall execute and deliver to Morgan
Stanley and Credit Suisse, prior to or contemporaneously with such gift,
transfer or distribution, an agreement to be bound by the restrictions set forth
herein. In addition, the undersigned agrees that, without the prior written
consent of Morgan Stanley and Credit Suisse on behalf of the Underwriters, it
will not, during the period commencing on the date hereof and ending 90 days
after the date of the Prospectus, make any demand for or exercise any right with
respect to, the registration of any shares of Common Stock or any security
convertible into or exercisable or exchangeable for Common Stock. The
undersigned also agrees and consents to the entry of stop transfer instructions
with the Company's transfer agent and registrar against the transfer of the
undersigned's shares of Common Stock except in compliance with the foregoing
restrictions.

      The undersigned understands that the Company and the Underwriters are
relying upon this Lock-Up Agreement in proceeding toward consummation of the
Public Offering. The undersigned further understands that this Lock-Up Agreement
is irrevocable and shall be binding upon the undersigned's heirs, legal
representatives, successors and assigns.

      Whether or not the Public Offering actually occurs depends on a number of
factors, including market conditions. Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.

                                    Very truly yours,



                                    -----------------------------------------
                                    (Name)


                                    -----------------------------------------
                                    (Address)



                                      A-2