URS CORPORATION
                   SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT


         This SUPPLEMENTAL  EXECUTIVE  RETIREMENT AGREEMENT (the "Agreement") is
entered into this 13th day of July, 1999 (the  "Effective  Date") between MARTIN
M. KOFFEL  ("Executive") and URS CORPORATION (the "Company").  This Agreement is
intended to provide Executive with a supplemental retirement benefit in addition
to the  benefit  that  Executive  will be  eligible  to  receive  following  the
termination of his employment with the Company under the URS Corporation  401(k)
Retirement  Plan.  This  Agreement  is not  intended  to meet the  qualification
requirements  under Section 401 of the Code.  Certain  capitalized terms used in
this Agreement are defined in Article 8.

         The Company and Executive hereby agree as follows:

                                   ARTICLE 1

                  SCOPE OF AND CONSIDERATION FOR THIS AGREEMENT

         1.1 Executive is currently employed by the Company.

         1.2 The  Company  and  Executive  wish to set  forth  the  supplemental
retirement benefit that Executive or his Beneficiary will be eligible to receive
following his termination of employment with the Company.

         1.3 The duties and  obligations of the Company to Executive  under this
Agreement shall be in consideration for Executive's past services to the Company
and Executive's continued employment with the Company.

         1.4 This Agreement shall supersede any other agreement with the Company
relating  to  supplemental  executive  retirement  benefits  to be  received  by
Executive upon his termination of employment with the Company. This Agreement is
not intended to  supersede  any other  agreement  into which  Executive  and the
Company have entered including, but not limited to, employment agreements, stock
option agreements, and deferred compensation agreements.

                                   ARTICLE 2

                                AMOUNT OF BENEFIT

         Executive  shall be eligible to receive a benefit under this  Agreement
following his  termination of employment with the Company (the  "Benefit").  The
Benefit shall be an annual amount,  payable for the life of the Executive with a
guarantee of payments for at least ten (10) years,  equal to (a) a percentage of
Executive's  Final Average  Compensation,  which  percentage shall be determined
based on  Executive's  age at his  termination of employment as set forth in the
following table (with  interpolation of percentages for ages between those whole
years  specified  based on the number of complete weeks beyond a specified whole
year divided by 52),  reduced

                                       1.


by (b) the annual Social Security  benefit to which Executive is entitled at the
time of earliest eligibility:

Executive's Age at Termination of Employment              Applicable Percentage
                 65 or older                                       50%
                     64                                            40%
                     63                                            30%
                     62                                            20%
                61 or younger                                      10%

If Executive's  employment  with the Company is terminated (a) by the Company or
Executive  for any reason  within  thirteen  (13)  months  following a Change in
Control or (b) by the  Company  for any reason  following  the  occurrence  of a
Potential Change in Control and within six (6) months prior to the occurrence of
a Change in Control,  Executive's  Benefit shall be calculated as if Executive's
age at  termination of employment  were his actual age plus an additional  three
(3) years. If Executive  terminates  employment with the Company after attaining
age  sixty-five  (65),  the  Benefit  shall be the  greater  of (a) the  Benefit
computed  as of the  date of  Executive's  termination  of  employment  with the
Company or (b) the Actuarial  Equivalent (to reflect later  commencement) of the
Benefit  computed as if it commenced as of the first day of the month coinciding
with or next following the date of Executive's sixty-fifth (65th) birthday.

                                   ARTICLE 3

                            TIMING OF BENEFIT PAYMENT

         Payment of the  Benefit  shall  commence  on the first day of the month
following the month in which occurs the  Executive's  termination  of employment
with the Company;  provided,  however,  that  Executive may, upon executing this
Agreement or thereafter,  elect such later date upon which  Executive's  Benefit
payments shall commence following  termination of his employment.  Such election
of a Benefit payment commencement date shall be irrevocable;  provided, however,
that Executive may change his election of a Benefit payment commencement date if
the election to change the Benefit  payment  commencement  date is made at least
one (1) year  prior to the date  that  Benefit  payments  actually  commence  to
Executive.  If  Executive  elects a change in the  commencement  date of Benefit
payments and such election is made less than one (1) year prior to the date that
Benefit payments actually commence to Executive, then such election change shall
not be effective  until one (1) year from the date the election  change is made,
and Benefit  payments  scheduled  to be made during such 1-year  period shall be
paid on schedule.  If Executive does not elect a Benefit commencement date prior
to his  termination of employment  with the Company,  he shall be deemed to have
elected  to begin  receiving  Benefit  payments  on the  first  day of the month
following the month in which his employment with the Company terminates.

                                       2.


                                   ARTICLE 4

                             FORM OF BENEFIT PAYMENT

         4.1 Executive shall, upon executing this Agreement or thereafter, elect
the  form in  which  his  Benefit  shall  be  distributed.  Such  election  of a
distribution form shall be irrevocable;  provided,  however,  that Executive may
change his  election of a  distribution  form if such  election is made no later
than one (1) year prior to the date that Benefit payments  actually  commence to
Executive.  If Executive elects a change in the distribution form of his Benefit
and such  election is made less than one (1) year prior to the date that Benefit
payments  actually  commence to Executive,  then such  election  change shall be
ineffective,  and the Benefit  shall be  distributed  according  to  Executive's
immediately  prior  election.  If Executive does not elect a  distribution  form
prior to becoming  eligible to receive a Benefit under this Agreement,  he shall
be deemed to have elected the normal form of Benefit pursuant to Section 4.2(a).

         4.2 Executive may elect a distribution  form for his Benefit from among
the following forms:

                  (a) The normal  form of Benefit is a life  annuity  with a ten
(10) year term  certain.  This form of  Benefit  shall be paid in equal  monthly
installments for the longer of the life of Executive or ten (10) years.

                  (b) The  following  optional  forms of  Benefit  shall each be
calculated to be the Actuarial Equivalent of the normal form of Benefit:

                           (i) A joint  and  survivor  annuity  shall be paid in
equal  monthly  installments  for the life of Executive,  and after  Executive's
death, a fifty percent (50%)  continuation of such installments shall be paid to
Executive's Beneficiary for the life of such Beneficiary.

                           (ii) A single lump sum payment to Executive.

                                   ARTICLE 5

                               DEATH OF EXECUTIVE

         5.1 If  Executive  should  die  prior to the  commencement  of  Benefit
payments,  Executive's  Beneficiary shall be entitled to receive a death benefit
in the form of an annuity for the life of such  Beneficiary.  Such life  annuity
shall be payable in equal monthly  installments,  the Actuarial Equivalent value
of which shall be equal to the value of the lump sum Benefit,  if any, Executive
would have received  pursuant to Section  4.2(b)(ii)  above if he had terminated
his  employment  with the  Company on the day before his death and had  received
such Benefit on such day;  provided,  however,  that if the  Beneficiary  is the
Executive's  estate,  such death  benefit  shall be paid in the form of a single
lump sum. The  foregoing  death  benefit  shall be paid, or commence to be paid,
within thirty (30) days following Executive's death.

         5.2 If  Executive  should  die  after  commencing  to  receive  Benefit
payments  in the form of a life  annuity  with a ten  (10)  year  term  certain,
Executive's  Beneficiary  shall be entitled to

                                       3.


receive a death  benefit  equal to the value of the remaining ten (10) year term
certain  payments.  Such  Benefit will be paid in monthly  installments  for the
remainder  of the ten  (10)  year  life  term;  provided,  however,  that if the
Beneficiary is the Executive's  estate, the Actuarial  Equivalent of the Benefit
shall be paid in the form of a single  lump sum.  The  foregoing  death  benefit
shall be paid,  or  commence  to be paid,  within  thirty  (30)  days  following
Executive's death.

                                   ARTICLE 6

                    POST-RETIREMENT HEALTH INSURANCE COVERAGE

         Following  the later of (i)  Executive's  termination  of employment or
(ii) the  expiration of any extended  period of  Company-paid  health  insurance
coverage  provided for in  Executive's  employment  agreement  with the Company,
Executive shall be entitled, at his expense but at the Company's group rates, to
continue  participation  in the  health  insurance  programs  maintained  by the
Company.  During  Executive's life, such coverage shall be extended to Executive
and his dependents  who qualify as such under the terms of the Company's  health
insurance programs. Following Executive's death, such coverage shall continue to
be  available  to  Executive's  surviving  spouse,  at  her  expense  but at the
Company's group rates, for her lifetime. To the extent that the Company finds it
impossible to cover  Executive or his surviving  spouse or dependents  under its
health  insurance  programs,  the Company  shall  arrange for  Executive  or his
surviving  spouse,  at their  expense but at a rate  equivalent to the Company's
group rates, to be provided with an individual  policy  providing  substantially
the same level of coverage as the Company's health insurance programs.

                                   ARTICLE 7

                                     FUNDING

         Benefits payable under this Agreement shall be "unfunded," as that term
is used in Sections  201(2),  301(a)(3),  401(a)(1) and 4021(a)(6) of ERISA with
respect to unfunded  plans  maintained  primarily  for the purpose of  providing
deferred  compensation  to a select group of  management  or highly  compensated
employees, and the Company shall administer this Agreement in a manner that will
ensure that benefits are unfunded and that  Executive  will not be considered to
have received a taxable economic benefit prior to the time at which benefits are
actually payable  hereunder.  Accordingly,  the Company shall not be required to
segregate  or  earmark  any of its assets for the  benefit of  Executive  or his
spouse or other Beneficiary,  and each such person shall have only a contractual
right  against the Company for benefits  hereunder.  The rights and interests of
Executive   under  this  Agreement  shall  not  be  subject  in  any  manner  to
anticipation,  alienation, sale, transfer,  assignment, pledge or encumbrance by
Executive or any person claiming under or through  Executive,  nor shall they be
subject to the debts,  contracts,  liabilities  or torts of  Executive or anyone
else prior to payment.  Notwithstanding the foregoing,  the Company, in its sole
discretion, may establish a grantor ("rabbi") trust for the purpose of providing
benefits under this Agreement; provided, however, that the establishment of such
a trust will not render this  Agreement  other than  "unfunded"  as that term is
used in Sections  201(2),  301(a)(3),  401(a)(1),  and  402(a)(6) of ERISA,  and
provided,  further,  however,  that in the event of a Change in Control  and not
later than thirty (30) days  thereafter,  the  Company  shall  deposit in such a
rabbi trust,  the form of which is attached hereto as Exhibit A and whose assets
shall be used  exclusively  and  irrevocably  to provide  benefits to  Executive
(subject,  however,  to

                                       4.


the claims of the general  creditors of the Company) pursuant to this Agreement,
an amount of cash or marketable  securities (other than securities issued by the
Company or any of its  affiliates,  or by any person who becomes an affiliate of
the  Company  as a  result  of a  Change  in  Control  or any of  such  person's
affiliates)  equal in value to the lump sum  payment  that  would be  payable to
Executive  if,  on the  effective  date of such  Change in  Control,  he were to
terminate employment with the Company having attained age 65.

                                    ARTICLE 8

                                   DEFINITIONS

         For  purposes of this  Agreement,  the  following  terms are defined as
follows:

         8.1 "Actuarial  Equivalent"  shall mean a form of Benefit  (including a
lump sum payment) differing in time or manner of payment from the normal form of
Benefit  set forth in Section  4.2(a) but  having  the same  present  value when
computed using the following actuarial assumptions:

                  Mortality    Table:    the   table    specified   in   Section
                  417(e)(3)(A)(ii)(I) of the Code.

                  Interest Rate: the annual rate of interest on 30-year Treasury
                  securities for the month  preceding the date Benefit  payments
                  commence.

However, for purposes of clause (b) of the final sentence of Article 2, only the
Interest Rate (and not the Mortality Table) shall apply.

         8.2 "Board" shall mean the Board of Directors of URS  Corporation or of
a successor to URS Corporation, as described in Section 11.9.

         8.3 "Beneficiary" shall mean the beneficiary designated by Executive to
receive  benefits under this Agreement  after  Executive's  death.  If Executive
designates no  Beneficiary,  or if the designated  Beneficiary  does not survive
Executive,  the Beneficiary  shall be Executive's  surviving spouse or, if none,
Executive's estate.

         8.4  "Change  in  Control"  shall  mean  the  occurrence  of any of the
following events after the Effective Date:

                  (a) A change in control  required to be  reported  pursuant to
Item 6(e) of Schedule 14A of Regulation 14A under the Exchange Act;

                  (b) A change in the  composition of the Board,  as a result of
which fewer than  two-thirds  of the  directors are directors who either (i) had
been  directors of the Company  twenty-four  (24) months prior to such change or
(ii) were elected, or nominated for election,  to the Board with the affirmative
votes of at least a majority  of the  directors  who had been  directors  of the
Company  twenty-four  (24)  months  prior to such  change  and who were still in
office at the time of the election or nomination (the directors described in the
foregoing   clauses  (i)  and  (ii)   hereinafter   referred  to  as  "Incumbent
Directors"); or

                                       5.


                  (c) Any "person"  (as such term is used in Sections  13(d) and
14(d) of the Exchange Act) by the acquisition or aggregation of securities is or
becomes the  beneficial  owner,  directly or  indirectly,  of  securities of the
Company  representing  twenty percent (20%) or more of the combined voting power
of the Company's  then-outstanding  securities ordinarily (and apart from rights
accruing under special  circumstances)  having the right to vote at elections of
directors (the "Base Capital Stock"); except that:

                           (i) the  beneficial  ownership  by a person of twenty
percent  (20%) or more,  but less than a majority,  of the Base Capital Stock in
the ordinary course of such person's business and not with the purpose or effect
of changing  or  influencing  the control of the  Company,  and  otherwise  in a
situation  where the  person  is  eligible  to file a  short-form  statement  on
Schedule  13G under  Rule  13d-1  under the  Exchange  Act with  respect to such
beneficial ownership, shall be disregarded;

                           (ii) any change in the relative beneficial  ownership
of the Company's  securities by any person  resulting solely from a reduction in
the  aggregate  number of  outstanding  shares of Base  Capital  Stock,  and any
decrease  thereafter  in  such  person's  ownership  of  securities,   shall  be
disregarded  until such person increases in any manner,  directly or indirectly,
such person's beneficial ownership of any securities of the Company; and

                           (iii) the  beneficial  ownership by Richard C. Blum &
Associates,  Inc. ("RCBA") or any person "affiliated" (within the meaning of the
Exchange  Act) with RCBA  (collectively,  the "RCBA Group") of (w) shares of the
Company's  Series B Preferred Stock (x) additional  shares of Series B Preferred
Stock  issued in  payment of  dividends  on the Series B  Preferred  Stock,  (y)
additional  shares of the Company's  Common Stock issued upon the  conversion of
the Series B Preferred  Stock in  accordance  with its terms,  and (z) shares of
other  securities  of the Company  issued in exchange for the Series B Preferred
Stock in accordance with its terms (collectively, the "RCBA Preferred Investment
Shares"),  shall be  disregarded  unless  and until the RCBA Group  becomes  the
beneficial  owner,  directly  or  indirectly,   of  securities  of  the  Company
(including the RCBA Preferred  Investment  Shares)  representing more than fifty
percent (50%) of the Base Capital Stock;  provided that the beneficial ownership
of all or a portion of the RCBA  Preferred  Investment  Shares by a third person
who acquires such shares  through  purchase,  assignment or other  transfer from
RCBA or another  member of the RCBA Group,  and the  beneficial  ownership  by a
third person not affiliated with the RCBA Group as of the date of this Agreement
who acquires control of RCBA or the RCBA Group, shall not be disregarded.

         8.5 "Code" shall mean the Internal Revenue Code of 1986, as amended.

         8.6 "Compensation"  shall mean the sum of all cash salary  compensation
received by Executive  from the Company for his service as an employee  plus the
target (not actual) bonus  compensation  established for Executive.  Such target
bonus  compensation  shall count as Compensation  under this Agreement as of the
first day of each of the Company's  fiscal years, or of any longer period,  with
respect to which such target bonus has been established,  and shall be deemed to
accrue ratably during each month of such year or longer period.

                                       6.


         8.7 "ERISA" shall mean the Employee  Retirement  Income Security Act of
1974, as amended.

         8.8 "Exchange Act" shall mean the  Securities  Exchange Act of 1934, as
amended.

         8.9  "Final  Average   Compensation"  shall  mean  the  average  annual
Compensation of Executive during the thirty-six (36)  consecutive  months during
the final one hundred  twenty (120) months of  Executive's  employment  with the
Company in which such average Compensation was highest.

         8.10 "Potential  Change in Control" shall mean the occurrence of any of
the following after the Effective Date:

                  (a) an event  described in Section  8.4(c),  but  substituting
"ten  percent  (10%)" for "twenty  percent  (20%),"  without  the  approval of a
majority of the Incumbent Directors;

                  (b) the  institution  by any  person  (as such term is used in
Sections  13(d) and 14(d) of the Exchange  Act) of a tender offer to acquire ten
percent (10%) or more of the combined voting power of the Company's Base Capital
Stock without the approval of a majority of the Incumbent  Directors prior to or
within twenty (20) business days following such offer; or

                  (c) a  public  announcement  or  receipt  by  the  Board  of a
proposal of any person (as such term is used in Sections  13(d) and 14(d) of the
Exchange Act) or group of persons to merge into,  combine with or acquire all or
substantially  all of the assets or business of the Company without the approval
of a majority  of the  Incumbent  Directors  within  twenty (20)  business  days
following such public announcement or receipt.

                                   ARTICLE 9

                  ADMINISTRATION AND OPERATION OF THE AGREEMENT

         The  Company  shall  have the  authority  to  control  and  manage  the
operation  and  administration  of this  Agreement.  The  Company  has the  sole
discretion  to  make  such  rules,  regulations,  and  interpretations  of  this
Agreement  and to make such  computations  and shall take such other  actions to
administer  this Agreement as it may deem  appropriate  in its sole  discretion.
Such rules, regulations, interpretations,  computations, and other actions shall
be conclusive and binding upon all persons.  The Company may engage the services
of such  persons or  organizations  to render  advice or perform  services  with
respect to its responsibilities under this Agreement as it shall determine to be
necessary or appropriate.  Such persons or  organizations  may include  (without
limitation) actuaries, attorneys, accountants and consultants.

                                   ARTICLE 10

                          CLAIMS, INQUIRIES AND APPEALS

         10.1 Applications for Benefits and Inquiries. Applications for benefits
shall be in writing,  signed and submitted to the Company at its primary  office
location.

                                       7.


         10.2  Claims  Procedure.  The  Company  and  Executive  agree  that all
disputes regarding benefits under this Agreement shall be resolved in accordance
with a reasonable claims procedure complying with 29 CFR ss.2560.503-1,  as such
regulations  of the United  States  Department of Labor may from time to time be
amended. For purposes of such a procedure,  any denied claim shall be subject to
review by the Compensation Committee of the Board.

         10.3  Exhaustion of Remedies.  No legal action for benefits  under this
Agreement  may be  brought  until  Executive  or other  claimant  has  pursued a
resolution of the benefits claim in accordance with Section 10.2.

                                   ARTICLE 11

                               GENERAL PROVISIONS

         11.1 Employment  Status.  This Agreement does not constitute a contract
of employment or impose upon  Executive any obligation to remain as an employee,
nor does it impose on the Company any obligation  (i) to retain  Executive as an
employee,  (ii) to change the status of  Executive  as an at-will  employee,  or
(iii) to change the Company's policies regarding termination of employment.

         11.2 Notices.  Any notices provided  hereunder must be in writing,  and
such notices or any other written  communication  shall be deemed effective upon
the earlier of personal delivery  (including  personal delivery by facsimile) or
the third day after  mailing by first class mail,  to the Company at its primary
office  location  and to  Executive  at  Executive's  address  as  listed in the
Company's  payroll records.  Any payments made by the Company to Executive under
the terms of this Agreement shall be delivered to Executive  either in person or
at the address as listed in the Company's payroll records.

         11.3 Severability.  Whenever possible, each provision of this Agreement
will be interpreted in such manner as to be effective and valid under applicable
law, but if any  provision of this  Agreement is held to be invalid,  illegal or
unenforceable   in  any  respect  under  any  applicable  law  or  rule  in  any
jurisdiction,  such invalidity,  illegality or unenforceability  will not affect
any  other  provision  or any other  jurisdiction,  but this  Agreement  will be
reformed,  construed  and  enforced  in such  jurisdiction  as if such  invalid,
illegal or unenforceable provisions had never been contained herein.

         11.4 Waiver.  If either party should waive any breach of any provisions
of this  Agreement,  he or it shall not  thereby  be deemed to have  waived  any
preceding  or  succeeding  breach  of the same or any  other  provision  of this
Agreement.

         11.5  Complete  Agreement.   This  Agreement   constitutes  the  entire
agreement  between  Executive  and the Company and is the complete,  final,  and
exclusive  embodiment  of their  agreement  with regard to this subject  matter,
wholly  superseding all written and oral agreements with respect to supplemental
executive  retirement  benefits.  It is entered  into  without  reliance  on any
promise or representation other than those expressly contained herein.

         11.6  Amendment Or  Termination  Of  Agreement.  This  Agreement may be
changed or terminated  only upon the mutual  written  consent of the Company and
Executive. The written

                                       8.


consent of the  Company to a change or  termination  of this  Agreement  must be
signed by an executive  officer of the Company after such change or  termination
has been approved by the Board.

         11.7   Counterparts.   This  Agreement  may  be  executed  in  separate
counterparts,  any one of which  need not  contain  signatures  of more than one
party,  but all of  which  taken  together  will  constitute  one  and the  same
Agreement.

         11.8  Headings.  The headings of the  Articles and Sections  hereof are
inserted  for  convenience  only and shall not be  deemed to  constitute  a part
hereof or to affect the meaning thereof.

         11.9  Successors  And Assigns.  This  Agreement is intended to bind and
inure to the benefit of and be enforceable by Executive and his Beneficiary, and
the Company,  and any surviving  entity  resulting  from a Change in Control and
upon any other person who is a successor by merger,  acquisition,  consolidation
or  otherwise  to the business  formerly  carried on by the  Company,  and their
respective successors,  assigns,  heirs,  executors and administrators,  without
regard to  whether  or not such  person  actively  assumes  any rights or duties
hereunder.

         11.10   Non-Alienation.   No  benefit  under  this   Agreement  may  be
anticipated,  alienated,  sold, transferred,  assigned,  pledged,  encumbered or
charged, and any attempt to do so will be void.

         11.11 Legal  Construction.  All questions  concerning the construction,
validity and  interpretation  of this  Agreement will be governed by the laws of
the State of California,  without regard to such state's conflict of laws rules,
to the extent that such laws are not preempted by ERISA.

         11.12  Non-Publication.  The  parties  mutually  agree not to  disclose
publicly the terms of this Agreement except to their respective  advisors (e.g.,
attorneys,  accountants)  or to  the  extent  that  disclosure  is  mandated  by
applicable law.

11.13  Other  Documents.  In the event of a  conflict  between  the text of this
Agreement  and any summary,  description  or other  information  regarding  this
Agreement, the text of this Agreement shall control.

         IN WITNESS  WHEREOF,  the parties have executed  this  Agreement on the
Effective Date written above.

URS CORPORATION                                  MARTIN M. KOFFEL



BY:  /s/ KENT P. AINSWORTH                        /s/ MARTIN M. KOFFEL
     ----------------------------------           ------------------------------
     KENT P. AINSWORTH

     EXECUTIVE VICE PRESIDENT AND
     CHIEF FINANCIAL OFFICER

                                       9.

                                                                       EXHIBIT A

                           TRUST UNDER URS CORPORATION
                   SUPPLEMENTAL EXECUTIVE RETIREMENT AGREEMENT


         This  AGREEMENT made this ____ of  ________________  by and between URS
CORPORATION (the "Company") and ___________________ (the "Trustee").

         WHEREAS,  the Company and Martin M. Koffel  ("Executive")  have entered
into a Supplemental  Executive Retirement Agreement effective July 13, 1999 (the
"Agreement");

         WHEREAS,  Company has incurred or expects to incur  liability under the
terms of such Agreement with respect to Executive and his beneficiaries;

         WHEREAS,  Company wishes to establish a trust  (hereinafter  called the
"Trust")  and to  contribute  to the Trust  assets  that shall be held  therein,
subject  to the  claims  of  Company's  creditors  in  the  event  of  Company's
Insolvency,  as herein defined, until paid to Executive and his beneficiaries in
such manner and at such times as specified in the Agreement;

         WHEREAS,  it is the  intention  of the  parties  that this Trust  shall
constitute  an  unfunded  arrangement  and shall not  affect  the  status of the
Agreement as an unfunded plan  maintained for the purpose of providing  deferred
compensation  for a select group of management or highly  compensated  employees
for purposes of Title I of the Employee Retirement Income Security Act of 1974;

         WHEREAS,  it is the intention of Company to make  contributions  to the
Trust to provide  itself  with a source of funds to assist it in the  meeting of
its liabilities under the Agreement;

         NOW,  THEREFORE,  the parties do hereby  establish  the Trust and agree
that the Trust shall be comprised, held and disposed of as follows:

SECTION 1. ESTABLISHMENT OF TRUST

         (a)  Company  hereby  deposits  with  Trustee in trust  [insert  amount
deposited],  which  shall  become  the  principal  of  the  Trust  to  be  held,
administered and disposed of by Trustee as provided in this Trust Agreement.

         (b) The Trust hereby established shall be irrevocable.

         (c) The Trust is intended to be a grantor  trust,  of which  Company is
the grantor,  within the meaning of subpart E, part I,  subchapter J, chapter 1,
subtitle  A of the  Internal  Revenue  Code of 1986,  as  amended,  and shall be
construed accordingly.

         (d) The principal of the Trust,  and any earnings thereon shall be held
separate and apart from other funds of Company and shall be used exclusively for
the uses and purposes of Executive, his beneficiaries,  and general creditors of
the Company as herein set forth.  Executive and his beneficiaries  shall have no
preferred claim on, or any beneficial  ownership  interest in, any assets of the
Trust.  Any rights created under the Agreement and this Trust Agreement shall

                                       1.


be mere unsecured  contractual rights of Executive and his beneficiaries against
Company. Any assets held by the Trust will be subject to the claims of Company's
general  creditors  under federal and state law in the event of  Insolvency,  as
defined in Section 3(a) herein.

         (e) Company,  in its sole discretion,  may at any time, or from time to
time, make  additional  deposits of cash or other property in trust with Trustee
to augment the principal to be held,  administered and disposed of by Trustee as
provided  in  this  Trust  Agreement.  Neither  Trustee  nor  Executive  or  his
beneficiaries  shall  have  any  right  to  compel  such  additional   deposits.
Notwithstanding  the foregoing,  in accordance  with Article 7 of the Agreement,
Company,  in the event of a Change in Control (as defined in the  Agreement) and
not later than  thirty (30) days  thereafter,  shall  deposit  into the Trust an
amount of cash or marketable  securities  (other than  securities  issued by the
Company or any of its  affiliates,  or by any person who becomes an affiliate of
the  Company  as a  result  of a  Change  in  Control  or any of  such  person's
affiliates)  equal in value to the lump sum  payment  that  would be  payable to
Executive  under the  Agreement  if,  on the  effective  date of such  Change in
Control,  he were to terminate  employment  with the Company having attained age
65, and Trustee,  in  accordance  with Section 8(e) hereof,  shall  enforce such
obligation.

SECTION 2. PAYMENTS TO EXECUTIVE AND HIS BENEFICIARIES

         (a)  Company  shall  deliver to Trustee a copy of the  Agreement  and a
schedule (the "Payment  Schedule") that indicates the amounts payable in respect
of  Executive  (and  his   beneficiaries)   and  provides  a  formula  or  other
instructions  acceptable to Trustee for determining the amounts so payable,  the
form in which such amount is to be paid (as provided for or available  under the
Agreement),  and the time of commencement for payment of such amounts. Except as
provided in (c) below,  Trustee  shall make  payments to the  Executive  and his
beneficiaries  in  accordance  with the  Agreement  and such  Payment  Schedule.
Trustee shall make  provision for the reporting and  withholding of any federal,
state or local taxes that may be required  to be  withheld  with  respect to the
payment of benefits pursuant to the terms of the Agreement and shall pay amounts
withheld to the  appropriate  taxing  authorities or determine that such amounts
have been reported, withheld and paid by Company.

         (b) The entitlement of Executive or his beneficiaries to benefits under
the Agreement shall be determined  solely under the terms of the Agreement,  and
any claim for such benefits shall be considered and reviewed by Trustee based on
Trustee's  reasonable  interpretation  of the  Agreement.

         (c) Company may make  payment of benefits  directly to Executive or his
beneficiaries as they become due under the terms of the Agreement. Company shall
notify Trustee of its decision to make payment of benefits directly prior to the
time amounts are payable to Executive or his beneficiaries.  In addition, if the
principal of the Trust,  and any earnings  thereon,  are not  sufficient to make
payments of  benefits in  accordance  with the terms of the  Agreement,  Company
shall make the  balance of each such  payment  as it falls  due.  Trustee  shall
notify  Company  where  principal  and  earnings  are  not  sufficient.



                                       2.


SECTION 3. TRUSTEE  RESPONSIBILITY  REGARDING PAYMENTS TO TRUST BENEFICIARY WHEN
           COMPANY IS INSOLVENT.

         (a) Trustee  shall  cease  payment of  benefits  to  Executive  and his
beneficiaries if Company is Insolvent.  Company shall be considered  "Insolvent"
for  purposes of this Trust  Agreement if (i) Company is unable to pay its debts
as they  become  due, or (ii)  Company is subject to a pending  proceeding  as a
debtor under the United States Bankruptcy Code.

         (b) At all times during the  continuance of this Trust,  as provided in
Section l(d) hereof,  the  principal and income of the Trust shall be subject to
claims of general  creditors of Company under federal and state law as set forth
below.

                  (1) The Board of Directors and the Chief Executive  Officer of
Company  shall  have  the  duty  to  inform  Trustee  in  writing  of  Company's
Insolvency.  If a person claiming to be a creditor of Company alleges in writing
to Trustee that Company has become  Insolvent,  Trustee shall determine  whether
Company is Insolvent and, pending such determination,  Trustee shall discontinue
payment of benefits to Executive or his beneficiaries.

                  (2)  Unless   Trustee  has  actual   knowledge   of  Company's
Insolvency,  or has received  notice from  Company or a person  claiming to be a
creditor  alleging  that  Company is  Insolvent,  Trustee  shall have no duty to
inquire  whether  Company is  Insolvent.  Trustee may in all events rely on such
evidence  concerning  Company's solvency as may be furnished to Trustee and that
provides Trustee with a reasonable  basis for making a determination  concerning
Company's solvency.

                  (3) If at any time  Trustee  has  determined  that  Company is
Insolvent,  Trustee shall discontinue payments to Executive or his beneficiaries
and shall hold the  assets of the Trust for the  benefit  of  Company's  general
creditors.  Nothing in this Trust Agreement shall in any way diminish any rights
of Executive or his beneficiaries to pursue their rights as general creditors of
Company  with  respect to benefits due under the  Agreement  or  otherwise.

                  (4) Trustee  shall resume the payment of benefits to Executive
or his  beneficiaries  in accordance with Section 2 of this Trust Agreement only
after  Trustee has  determined  that Company is not  Insolvent  (or is no longer
Insolvent).

         (c) Provided that there are sufficient assets, if Trustee  discontinues
the  payment of  benefits  from the Trust  pursuant  to Section  3(a) hereof and
subsequently   resumes  such   payments,   the  first  payment   following  such
discontinuance  shall  include  the  aggregate  amount  of all  payments  due to
Executive or his  beneficiaries  under the terms of the Agreement for the period
of such  discontinuance,  less the  aggregate  amount  of any  payments  made to
Executive or his  beneficiaries by Company in lieu of the payments  provided for
hereunder during any such period of discontinuance.

SECTION 4. PAYMENTS TO COMPANY.

         Except as provided in Section 3 hereof,  Company shall have no right or
power to direct  Trustee  to return to Company or to divert to others any of the
Trust assets  before all payment of

                                       3.


benefits have been made to Executive and his beneficiaries pursuant to the terms
of the Agreement.

SECTION 5. INVESTMENT AUTHORITY.

         (a) In  General.  With  respect to any and all money or other  property
received by Trustee from  Company,  Trustee is  authorized to act as an absolute
owner of the assets of the Trust and, not in limitation of, but in amplification
of, the foregoing:

                  (1) To invest and  reinvest  the assets of the Trust,  without
distinction between principal and income;

                  (2) To retain and manage any property at any time  received by
it,  including  any  real,  personal  and mixed  property  and any  tangible  or
intangible  property  of any  kind and  wherever  located,  whether  or not such
property is unproductive of income;

                  (3) To sell for cash or on credit, to grant options,  convert,
redeem, exchange for other securities or other property, or otherwise to dispose
of any securities or other property at any time held;

                  (4) To exchange,  mortgage,  or lease any such property and to
convey,  transfer,  or dispose of any such property on such terms and conditions
as Trustee deems  appropriate;

                  (5) To hold cash uninvested for any reasonable  period of time
without  liability for interest,  pending  investment  thereof or the payment of
expenses or benefits therewith;

                  (6) To  collect  and  receive  any and  all  money  and  other
property of whatever  kind or nature due or owing or  belonging to the Trust and
to give  full  discharge  thereto;  and to  extend  the time of  payment  of any
obligation  at any time owing to the Trust,  as long as such  extension is for a
reasonable period and continues at reasonable interest;

                  (7) To pay,  contest,  or settle any claim by or  against  the
Trust by compromise,  arbitration or otherwise;  and to release,  in whole or in
part,  any  claim  belonging  to the  Trust  to the  extent  that  the  claim is
uncollectible;

                  (8) To prosecute or defend actions,  claims or proceedings for
the protection of Trust assets and of Trustee in the  performance of its duties;

                  (9) To register  Trust  property in Trustee's own name, in the
name of a nominee or in bearer  form,  provided  Trustee's  records and accounts
show that such  property  belongs to the Trust;

                  (10) To deposit  Trust  assets in any  commercial,  savings or
savings  and loan  accounts,  common  funds,  mutual  funds or  certificates  of
deposits  with any  bank or  similar  financial  institution,  and to keep  such
portion of the Trust assets in cash or cash  balances as Trustee may,  from time
to time,  deem to be in the best interests of the Trust,  without  liability for
interest  thereon;

                                       4.


                  (11) To employ in the  management  of the assets of the Trust,
accountants,  attorneys, actuaries and any other persons, firms, or corporations
as Trustee may designate, and to pay from the assets of the Trust the reasonable
expenses and compensation of such parties;

                  (12) To consult with legal counsel (who may or may not also be
counsel to Company) concerning any question that may arise with reference to its
duties under the Trust or the  Agreement;

                  (13)  To  have  all  the  rights,   powers,   privileges   and
responsibilities  of an owner of  securities,  including  (without  limiting the
foregoing) the power to vote or refrain from voting,  to give general or limited
proxies,  to pay  calls,  assessments,  and other  sums;  to assent to or oppose
corporate  sales or other acts; to  participate  in or oppose any voting trusts,
pooling agreements, foreclosures,  reorganizations,  consolidations, mergers and
liquidations   and,   in   connection   therewith,   to  give   warranties   and
indemnifications  and to  deposit  securities  with  and  transfer  title to any
protective or other committee; to exchange,  exercise or sell stock subscription
or conversion  rights;  and,  subject to any limitations  elsewhere in the Trust
relative  to  investments  by  Trustee,  to accept and  retain as an  investment
hereunder any securities  received  through the exercise of any of the foregoing
powers;

                  (14) To continue to exercise any powers and discretion  herein
granted for a reasonable time after the termination of the Trust; and

                  (15) To do all other acts Trustee may deem necessary or proper
to carry out any of the foregoing powers, or otherwise for the protection of the
assets  of the  Trust.

Notwithstanding  the  foregoing,  Trustee  shall not (i) maintain the indicia of
ownership of any Trust assets outside the jurisdiction of the district courts of
the United  States or (ii) invest in  securities  (including  stock or rights to
acquire stock) or obligations issued by Company or its affiliates,  other than a
de minimis amount held in common investment vehicles in which Trustee invests.

         (b) Custodian.  If Trustee is not a bank or trust company,  Trustee may
appoint  a bank or trust  company  to act as  custodian  (the  "Custodian")  for
securities and any other Trust assets. Any such appointment shall terminate when
a bank or trust company begins to serve as Trustee hereunder.  The Custodian may
be appointed to keep the deposited  property,  to collect and receive the income
and  principal,  and to hold,  invest,  disburse  or  otherwise  dispose  of the
property  or  its  proceeds  (specifically   including  selling  and  purchasing
securities,  and delivering  securities sold and receiving securities purchased)
upon the order of Trustee.

SECTION 6. DISPOSITION OF INCOME.

         During the term of this Trust, all income received by the Trust, net of
expenses and taxes, shall be accumulated and reinvested.

SECTION 7. ACCOUNTING BY TRUSTEE.

         Trustee  shall keep accurate and detailed  records of all  investments,
receipts,  disbursements,  and  all  other  transactions  required  to be  made,
including  such  specific  records as


                                       5.


shall be agreed upon in writing between  Company and Trustee.  Within sixty (60)
days following the close of each calendar year and within thirty (30) days after
the  removal or  resignation  of  Trustee,  Trustee  shall  deliver to Company a
written  account of its  administration  of the Trust during such year or during
the period from the close of the last preceding year to the date of such removal
or resignation, setting forth all investments, receipts, disbursements and other
transactions  effected by it,  including a  description  of all  securities  and
investments  purchased and sold with the cost or net proceeds of such  purchases
or sales  (accrued  interest paid or  receivable  being shown  separately),  and
showing all cash,  securities and other property held in the Trust at the end of
such year or as of the date of such removal or resignation, as the case may be.

SECTION 8. RESPONSIBILITY OF TRUSTEE.

         (a) Trustee  shall act with the care,  skill,  prudence  and  diligence
under the  circumstances  then  prevailing  that a prudent person acting in like
capacity  and  familiar  with  such  matters  would  use  in the  conduct  of an
enterprise  of a like  character  and with like aims,  provided,  however,  that
Trustee shall incur no liability to any person for any action taken  pursuant to
a direction,  request or approval given by Company which is contemplated by, and
in  conformity  with,  the terms of the  Agreement or this Trust and is given in
writing  by  Company.  In the event of a dispute  between  Company  and a party,
Trustee may apply to a court of competent jurisdiction to resolve the dispute.

         (b)  If  Trustee  undertakes  or  defends  any  litigation  arising  in
connection  with  this  Trust,  Company  agrees  to  indemnify  Trustee  against
Trustee's  costs,  expenses  and  liabilities  (including,  without  limitation,
attorneys' fees and expenses)  relating  thereto and to be primarily  liable for
such payments. If Company does not pay such costs, expenses and liabilities in a
reasonably timely manner, Trustee may obtain payment from the Trust.

         (c) Trustee may consult with legal counsel (who may also be counsel for
Company  generally) with respect to any of its duties or obligations  hereunder.

         (d)  Trustee  may  hire  agents,  accountants,   actuaries,  investment
advisors,   financial  consultants  or  other  professionals  to  assist  it  in
performing any of its duties or obligations hereunder.

         (e) In the event that the Company fails to deposit  assets in the Trust
within  thirty  (30) days  following  a Change in  Control  (as  defined  in the
Agreement) in accordance  with the final sentence of Article 7 of the Agreement,
Trustee shall take all appropriate action, including the commencement of a legal
action against the Company, to enforce such obligation;  provided, however, that
Trustee  shall not be required to take any such action  unless the assets of the
Trust are, at the time in  question,  sufficient  to pay all costs that  Trustee
expects  to incur in  taking  such  action.

         (f) Trustee  shall have,  without  exclusion,  all powers  conferred on
Trustees  by  applicable  law,  unless  expressly   provided  otherwise  herein,
provided, however, that if an insurance policy is held as an asset of the Trust,
Trustee shall have no power to name a  beneficiary  of the policy other than the
Trust,  to assign the policy (as  distinct  from  conversion  of



                                       6.


the policy to a different form) other than to a successor Trustee, or to loan to
any  person  the  proceeds  of  any   borrowing   against   such   policy.

         (g)  Notwithstanding  any powers  granted to Trustee  pursuant  to this
Trust  Agreement or to  applicable  law,  Trustee  shall not have any power that
could give this Trust the  objective  of carrying on a business and dividing the
gains therefrom,  within the meaning of section  301.7701-2 of the Procedure and
Administrative Regulations promulgated pursuant to the Internal Revenue Code.

SECTION 9. COMPENSATION AND EXPENSES OF TRUSTEE.

         Company shall pay all  administrative  and Trustee's fees and expenses.
If not so paid, the fees and expenses shall be paid from the Trust.

SECTION 10. RESIGNATION AND REMOVAL OF TRUSTEE.

         (a) Trustee may resign at any time by written notice to Company,  which
shall be effective  thirty (30) days after receipt of such notice unless Company
and Trustee agree otherwise.

         (b) Except as provided in paragraph (c) of this section, Trustee may be
removed by Company on thirty (30) days' notice or upon shorter  notice  accepted
by Trustee.

         (c) Upon a Change in Control, as defined in the Agreement,  Trustee may
not be removed by Company for one (1) year.

         (d) Upon  resignation  or  removal  of  Trustee  and  appointment  of a
successor Trustee, all assets shall subsequently be transferred to the successor
Trustee. The transfer shall be completed within sixty (60) days after receipt of
notice of  resignation,  removal or transfer,  unless  Company  extends the time
limit.

         (e) If Trustee  resigns or is removed,  a successor shall be appointed,
in accordance  with Section 11 hereof,  by the effective  date of resignation or
removal under paragraph (a) or (b) of this section.  If no such  appointment has
been  made,  Trustee  may  apply  to  a  court  of  competent  jurisdiction  for
appointment  of a  successor  or for  instructions.  All  expenses of Trustee in
connection with the proceeding  shall be allowed as  administrative  expenses of
the Trust.

SECTION 11. APPOINTMENT OF SUCCESSOR.

         (a) If Trustee  resigns or is removed prior to a Change in Control,  as
defined in the  Agreement,  Company may appoint any third party,  such as a bank
trust  department or other party that may be granted  corporate  trustee  powers
under state law, as a successor to replace Trustee upon  resignation or removal.
The appointment  shall be effective when accepted in writing by the new Trustee,
who shall have all of the rights  and  powers of the former  Trustee,  including
ownership  rights in the Trust  assets.  The former  Trustee  shall  execute any
instrument necessary or reasonably requested by Company or the successor Trustee
to evidence the transfer.

                                       7.


         (b) If Trustee resigns or is removed following a Change in Control,  as
defined in the  Agreement,  Trustee  may  appoint any third party such as a bank
trust  department or other party that may be granted  corporate  trustee  powers
under state law, as a successor to replace Trustee upon  resignation or removal.
The  appointment  of a successor  Trustee  shall be effective  when  accepted in
writing by the new Trustee. The new Trustee shall have all the rights and powers
of the former Trustee,  including  ownership rights in Trust assets.  The former
Trustee shall execute any  instrument  necessary or reasonably  requested by the
successor Trustee to evidence the transfer.

         (c) The successor  Trustee need not examine the records and acts of any
prior  Trustee and may retain or dispose of existing  Trust  assets,  subject to
Sections 7 and 8 hereof.  The successor Trustee shall not be responsible for and
Company  shall  indemnify  and defend the  successor  Trustee  from any claim or
liability resulting from any action or inaction of any prior Trustee or from any
other past event,  or any  condition  existing at the time it becomes  successor
Trustee.

SECTION 12. AMENDMENT OR TERMINATION.

         (a)  This  Trust  Agreement  may be  amended  by a  written  instrument
executed  by  Trustee  and  Company.  Notwithstanding  the  foregoing,  no  such
amendment shall conflict with the terms of the Agreement or shall make the Trust
revocable.

         (b) The Trust shall not terminate until the date on which Executive and
his  beneficiaries  are no longer entitled to benefits  pursuant to the terms of
the Agreement.  Upon  termination of the Trust any assets remaining in the Trust
shall be returned to Company.

         (c) Upon written approval of Executive or his beneficiaries entitled to
payment  of  benefits  pursuant  to the  terms  of the  Agreement,  Company  may
terminate  this  Trust  prior to the time that all  benefit  payments  under the
Agreement  have been  made.  All  assets in the  Trust at  termination  shall be
returned  to  Company.

         (d) Sections 10, 11(b),  and this 12(d) of this Trust Agreement may not
be amended by Company for one (1) year following a Change in Control, as defined
in the Agreement.

SECTION 13. MISCELLANEOUS

         (a) Any  provision of this Trust  Agreement  prohibited by law shall be
ineffective  to the extent of any such  prohibition,  without  invalidating  the
remaining provisions hereof.

         (b) Benefits  payable to  Executive  and his  beneficiaries  under this
Trust Agreement may not be anticipated,  assigned  (either at law or in equity),
alienated,  pledged, encumbered or subjected to attachment,  garnishment,  levy,
execution or other legal or equitable process.

         (c)  This  Trust  Agreement  shall  be  governed  by and  construed  in
accordance with the laws of the State of California.



                                       8.


SECTION 14. EFFECTIVE DATE.

         The effective date of this Trust Agreement shall be _________________.


COMPANY:                                     TRUSTEE:

URS CORPORATION                              [________________________________]



By: ___________________________________      By: _______________________________

Name: _________________________________      Name: _____________________________

Title: ________________________________      Title: ____________________________



                                       9.