Dames & Moore, Inc.
                                
                        First Amendment
                                
                   Dated as of April 15, 1996
                                
                               To
                                
                    Note Purchase Agreements
                                
                   Dated as of March 15, 1996
                                
Re:        $40,000,000 6.54% Senior Notes, Series A,
                      Due March 29, 2001,
           $30,000,000 6.87% Senior Notes, Series B,
                      Due March 29, 2003,
           $10,000,000 6.92% Senior Notes, Series C,
                    Due September 29, 2003,
           $5,000,000 7.20% Senior Notes, Series D,
                       Due March 29, 2006
                              and
           $15,000,000 7.25% Senior Notes, Series E,
                     Due September 29, 2006


                                
                                
                                
                    FIRST AMENDMENT TO NOTE AGREEMENT

    THIS FIRST AMENDMENT to Note Purchase Agreements dated as of April 15, 
1996 (this "First Amendment"), is entered into between Dames & Moore, Inc., a
Delaware corporation (the "Company"), and Teachers Insurance and Annuity 
Association of America, Principal Mutual Life Insurance Company, MML Pension 
Insurance Company, Massachusetts Mutual Life Insurance Company, Allstate Life
Insurance Company, American General Life Insurance Company, United of Omaha 
Life Insurance Company, American Republic Insurance Company, Aid Association 
for Lutherans, The Canada Life Assurance Company, Canada Life Insurance 
Company of America, Canada Life Insurance Company of New York, Provident 
Mutual Life Insurance Company, and Indianapolis Life Insurance Company (each 
a "Noteholder" and collectively, the "Noteholders").

                           RECITALS:

    A.   The Company and the Noteholders, respectively, have heretofore 
entered into separate Note Purchase Agreements each dated as of March 15, 
1996 (as amended, the "Note Purchase Agreements").

    B.   The Company and the Noteholders now desire to amend certain of the 
terms of the Note Purchase Agreements.

    C.   Capitalized terms used herein shall have the respective meanings 
ascribed thereto in the Note Purchase Agreements unless herein defined or the
context shall otherwise require.

    D.   All requirements of law have been fully complied with and all other 
acts and things necessary to make this First Amendment a valid, legal and 
binding instrument according to its terms for the purposes herein expressed 
have been done or performed.

    NOW, THEREFORE, the Company and the Noteholders, in consideration of good
and valuable consideration the receipt and sufficiency of which is hereby 
acknowledged, do hereby agree as follows:

SECTION 1.    AMENDMENT.

    Section 1.1.   Section 3 of the Note Purchase Agreements shall be and is 
hereby amended in its entirety to read as follows:

         "The sale and purchase of the Notes to be purchased by you and the 
    Other Purchasers shall occur at the offices of Chapman and Cutler, 111 
    West Monroe Street, Chicago, Illinois 60603, at 10:00 a.m. Chicago time, 
    at a closing on the dates set forth opposite your name on Schedule A 
    hereto, the first of which shall occur on March 29, 1996 or on such later
    date (not later than April 5, 1996) as shall be agreed upon by the 
    Company, you and the Other Purchasers (the "first Closing"), the closing 
    with respect to all, but not less than all, of the Series C Notes shall 
    occur on such date (not later than September 30, 1996) as shall be
    agreed upon by the Company and Teachers Insurance and Annuity Association
    of America (the "Series C Closing") and the closing with respect to all, 
    but not less than all, of the Series E Notes shall occur on such date 
    (not later than September 30, 1996) as shall be agreed upon by the Company
    and Teachers Insurance and Annuity Association of America (the "Series
    E Closing"; the first Closing, the Series C Closing and the Series E 
    Closing are each referred to as a "Closing" and the first Closing, the 
    Series C Closing and the Series E Closing are collectively referred to as
    the "Closings"); provided, that in the case of the Series C Closing
    and the Series E Closing the Company shall provide Teachers Insurance and
    Annuity Association of America with written notice as provided in Section
    18 of its desire to consummate each such Closing not less than 14 days 
    prior to the date of each such Closing; and provided further, that it is 
    understood and agreed by the Company and Teachers Insurance and Annuity 
    Association of America that the Series C Closing and the Series E
    Closing may occur on the same date, in which event, the parties' document
    delivery requirements for each of the Series C Closing and the Series E 
    Closing shall be combined to the extent practicable.  At each Closing the
    Company will deliver to you the Notes of the series to be purchased by 
    you in the form of a single Note (or such greater number of Notes in 
    denominations of at least $1,000,000, or such lesser amount as shall 
    constitute your entire commitment, as you may request) dated the date of 
    the Closing and registered in your name (or in the name of your nominee),
    against delivery by you to the Company or its order of immediately 
    available funds in the amount of the purchase price therefor by wire 
    transfer of immediately available funds for the account of the Company to
    account number 0491-12465 at Sanwa Bank California, 601 South Figueroa 
    St., Los Angeles, California 90017, ABA No. 122003516.  If at the Closing
    at which you are to purchase Notes the Company shall fail to tender such 
    Notes to you as provided above in this Section 3, or any of the conditions
    specified in Section 4 shall not have been fulfilled to your satisfaction,
    you shall, at your election, be relieved of all further obligations under
    this Agreement, without thereby waiving any rights you may have by reason
    of such failure or such nonfulfillment."

    Section 1.2.   Section 4.1 of the Note Purchase Agreements shall be and 
is hereby amended in its entirety to read as follows:

    "Section 4.1.  Representations and Warranties.  The representations and 
warranties of the Company in this Agreement shall be correct when made and at
the time of each Closing; provided that the Schedules to the representations 
and warranties set forth in Sections 5.4 and 5.15 may be revised to reflect 
any changes that have occurred between the first Closing and each subsequent 
Closing so long as such occurrences do not individually or in the aggregate 
have a Material Adverse Effect."

    Section 1.3.   Section 17.1 of the Note Purchase Agreements shall be and 
is hereby amended in its entirety to read as follows:

    "Section 17.1. Requirements.  This Agreement and the Notes may be 
amended, and the observance of any term hereof or of the Notes may be waived 
(either retroactively or prospectively), with (and only with) the written 
consent of the Company and the Required Holders, except that (a) no amendment
or waiver of any of the provisions of Section 1, 2, 3, 4, 5, 6 or 21 hereof, 
or any defined term (as it is used therein), will be effective as to you 
unless consented to by you in writing, and (b) no such amendment or waiver 
may, without the written consent of the holder of each Note at the time 
outstanding affected thereby, (i) subject to the provisions of Section 12 
relating to acceleration or rescission, change the amount or time of any 
prepayment or payment of principal of, or reduce the rate or change the time 
of payment or method of computation of interest or of the Make-Whole
Amount on, the Notes, (ii) change the percentage of the principal amount of 
the Notes the holders of which are required to consent to any such amendment 
or waiver, or (iii) amend any of Sections 8, 11(a), 11(b), 12, 17 or 20; and 
provided that, anything contained in this Section 17.1 and 17.2 to the
contrary notwithstanding, if for any reason whatsoever it becomes necessary 
or appropriate to enter into any amendment of this Agreement or any waiver 
with respect to compliance herewith by the Company during the period from and
including the first Closing through and including the later of the date of 
the Series C Closing and of the Series E Closing (the "Series C and Series E 
Note Cut-Off Date"):  (1) notwithstanding the aggregate principal amount of 
Notes then actually outstanding, Teachers Insurance and Annuity Association 
of America shall be deemed to be the holder of $10,000,000 aggregate 
principal amount of outstanding Series C Notes and $15,000,000 aggregate
principal amount of outstanding Series E Notes (i) for purposes of any 
determination of the percentage of holders of the Notes required to grant or 
deny such requested amendment or waiver and (ii) for purposes of any 
determination of any payment of remuneration, whether by way of supplemental 
or additional interest, fee or otherwise pursuant to Section 17.2, 
notwithstanding that the issuance, sale and delivery of the Series C Notes at
the Series C Closing or the Series E Notes at the Series E Closing, as the 
case may be, has not been consummated at the time such amendment or waiver is
requested or such payment of remuneration is determined pursuant to Section 
17.2, and (2) if for any reason whatsoever, the Notes to be issued to Teachers
Insurance and Annuity Association of America are not issued on or prior to 
the Series C and Series E Note Cut-Off Date, any such amendment or waiver 
entered into as contemplated by the foregoing clause (1)(i) of this Section 
17.1 shall, at the option of the Required Holders of the then outstanding 
Notes, be deemed null and void."

    Section 1.4.   The first sentence of Section 19 of the Note Purchase 
Agreement shall be and is hereby amended in its entirety to read as follows:

         "This Agreement and all documents relating thereto, including, 
    without limitation, (a) consents, waivers and modifications that may 
    hereafter be executed, (b) documents received by you at any Closing 
    (except the Notes themselves), and (c) financial statements, certificates
    and other information previously or hereinafter furnished to you, may be
    reproduced by you by any photographic, photostatic, microfilm, microcard,
    miniature photographic or other similar process and you may destroy any
    original documents so reproduced."

    Section 1.5.   Schedule A of the Note Purchase Agreements shall be and is
hereby amended as follows:

         (a)  the reference to the "Second Closing" on page A of Schedule A 
is hereby replaced with "Series C Closing"; and

         (b)  the reference to the "Second Closing" on page A-3 of Schedule A
is hereby replaced with "Series E Closing"

    Section 1.6.   The reference to the "Second Closing Date" on Schedule 5.14
of the Note Purchase Agreements is hereby replaced with:  "the later of the 
date of the Series C Closing and of the Series E Closing."

SECTION 2.    REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

    Section 2.1.   To induce the Noteholders to execute and deliver this First
Amendment, the Company represents and warrants to the Noteholders (which 
representations shall survive the execution and delivery of this First 
Amendment) that:

         (a)  this First Amendment has been duly authorized, executed and 
    delivered by it and this First Amendment constitutes the legal, valid and
    binding obligation, contract and agreement of the Company enforceable
    against it in accordance with its terms, except as enforcement may be
    limited by bankruptcy, insolvency, reorganization, moratorium or similar
    laws or equitable principles relating to or limiting creditors' rights
    generally;

         (b)  the Note Purchase Agreements, as amended by this First Amendment,
    constitute the legal, valid and binding obligations, contracts and
    agreements of the Company enforceable against it in accordance with their
    terms, except as enforcement may be limited by bankruptcy, insolvency,
    reorganization, moratorium or similar laws or equitable principles
    relating to or limiting creditors' rights generally;

         (c)  the execution, delivery and performance by the Company of this
    First Amendment (1) has been duly authorized by all requisite corporate
    action and, if required, shareholder action, (2) does not require the 
    consent or approval of any governmental or regulatory body or agency, and
    (3) will not (i) violate (A) any provision of law, statute, rule or 
    regulation or its certificate of incorporation or bylaws, (B) any order 
    of any court or any rule, regulation or order of any other agency or
    government binding upon it, or (C) any provision of any material
    indenture, agreement or other instrument to which it is a party or by
    which its properties or assets are or may be bound, or (ii) result in a 
    breach or constitute (alone or with due notice or lapse of time or both)
    a default under any indenture, agreement or other instrument referred to 
    in clause (3)(i)(C) of this Section 2.1(c); and

         (d)  as of the date hereof and after giving effect to this First
    Amendment, no Default or Event of Default has occurred which is continuing.

SECTION 3.    MISCELLANEOUS.

    Section 3.1.   This First Amendment shall become effective and binding 
upon the Company and the Noteholders on the date hereof upon the acceptance 
hereof by the Noteholders in the space below.

    Section 3.2.   Except as modified and expressly amended by this First 
Amendment, the Note Purchase Agreements are in all respects ratified, 
confirmed and approved and all of the terms, provisions and conditions 
thereof shall be and remain in full force and effect.

    Section 3.3.   The Company agrees to pay all reasonable fees and expenses
of the Noteholders and their special counsel in connection with the 
preparation of this First Amendment.

    Section 3.4.   Any and all notices, requests, certificates and other 
instruments executed and delivered after the execution and delivery of this 
First Amendment may refer to the Note Purchase Agreements without making 
specific reference to this First Amendment but nevertheless all such 
references shall include this First Amendment unless the context otherwise 
requires.

    Section 3.5.   This First Amendment shall be governed by and construed in
accordance with the laws of the State of New York.

    Section 3.6.   This First Amendment may be executed and delivered in any 
number of counterparts, each of such counterparts constituting an original, 
but all together only one First Amendment.

    IN WITNESS WHEREOF, the Company and the Noteholders have caused this 
instrument to be executed, all as of the day and year first above written.

                             DAMES & MOORE, INC.


                             By  Robert M. Perry
                                 ______________________________
                             Its CFO

Accepted and Agreed to:

                             TEACHERS INSURANCE AND ANNUITY 
                                   ASSOCIATION OF AMERICA


                             By  Gregory W. MacCordy
                                 ______________________________
                             Its Director - Private Placement  
    
Accepted and Agreed to:

                             PRINCIPAL MUTUAL LIFE INSURANCE COMPANY


                             By  Karen A. Pearston
                                 ______________________________
                             Its Counsel 


                             By  Shabnam B. Miglani
                                 ______________________________
                             Its Counsel

Accepted and Agreed to:

                             UNICARE LIFE & HEALTH 
                             INSURANCE COMPANY BY

                             MASSACHUSETTS MUTUAL 
                             LIFE INSURANCE COMPANY
                             Its Investment Adviser


                             By  Mark A. Ahmed
                                 ______________________________
                             Its Managing Director  

Accepted and Agreed to:

                             MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY


                             By  Mark A. Ahmed
                                 _______________________________
                             Its Managing Director

Accepted and Agreed to:

                             ALLSTATE LIFE INSURANCE COMPANY


                             By  Patricia Wilson
                                 _________________________________
                             Its  


                             By  Judith P. Greffin                 
                                 _________________________________
                             Its

Accepted and Agreed to:

                             AMERICAN GENERAL LIFE INSURANCE COMPANY


                             By  Julie S. Tucker
                                 _________________________________
                             Its Investment Officer  

Accepted and Agreed to:

                             UNITED OF OMAHA LIFE INSURANCE COMPANY


                             By  Richard A. Witt
                                 ________________________________
                             Its Senior Vice President  

Accepted and Agreed to:

                             AMERICAN REPUBLIC INSURANCE COMPANY


                             By  G.F. Sheldon
                                 _________________________________
                             Its Senior Vice President, Investments  


                             By__________________________________
                             Its  

Accepted and Agreed to:

                             AID ASSOCIATION FOR LUTHERANS


                             By  James A. Bitz
                                 ________________________________
                             Its Vice President - Securities  

Accepted and Agreed to:

                             THE CANADA LIFE ASSURANCE COMPANY


                             By  Brian J. Lynch
                                 ________________________________
                             Its Associate Treasurer  

Accepted and Agreed to:

                             CANADA LIFE INSURANCE COMPANY OF AMERICA


                             By  Brian J. Lynch
                                 ________________________________
                             Its Assistant Treasurer  

Accepted and Agreed to:

                             CANADA LIFE INSURANCE COMPANY OF NEW YORK


                             By  Brian J. Lynch
                                 ________________________________
                             Its Assistant Treasurer  
    
Accepted and Agreed to:

                             PROVIDENT MUTUAL LIFE INSURANCE COMPANY


                             By  James D. Kestner
                                 _______________________________
                             Its Vice President 

Accepted and Agreed to:

                             INDIANAPOLIS LIFE INSURANCE COMPANY


                             By  Gene E. Trueblood
                                 _______________________________
                             Its Vice President, CIO and Treasurer