EXHIBIT 4.1


                       TENTH AMENDMENT TO CREDIT AGREEMENT
                                       AND
                              FORBEARANCE AGREEMENT

     THIS TENTH AMENDMENT TO CREDIT  AGREEMENT AND  FORBEARANCE  AGREEMENT (this
"AGREEMENT")  is  entered  into  as of  January  31,  2002  by  and  among  U.S.
AGGREGATES,  INC., a Delaware  corporation  (the "COMPANY"),  various  financial
institutions (the "LENDERS") and BANK OF AMERICA, N.A., as agent for the Lenders
(the "AGENT").

                                    RECITALS:

         WHEREAS,  the  Company,  the Lenders and the Agent have  entered into a
Third  Amended  and  Restated  Credit  Agreement  dated  as of June 5,  1998 (as
amended,  the  "CREDIT  AGREEMENT";  capitalized  terms  used but not  otherwise
defined  herein  have the  meanings  assigned  thereto in the Credit  Agreement)
pursuant to which, as of the date hereof,  the Company is indebted and liable to
the Agent and the Lenders for various Loans, other financial  accommodations and
obligations (the "INDEBTEDNESS");

         WHEREAS,   the parties  hereto desire to amend the Credit  Agreement in
certain respects;

         WHEREAS,  the Company and certain of the Lenders previously  executed a
Tenth Amendment to the Credit  Agreement dated as of November 15, 2001, but such
document never became effective; and

         WHEREAS,  the Company is in default of certain provisions of the Credit
Agreement and the Required Lenders have agreed to forbear to the extent,  and on
the terms and subject to the conditions, set forth in this Agreement;

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable  consideration  (the  receipt  and  sufficiency  of  which  are  hereby
acknowledged), the parties hereto agree as follows:

1        SECTION  AMENDMENTS  TO CREDIT  AGREEMENT. Effective on (and subject to
the occurrence of) the Tenth Amendment Effective Date (as defined below):

         1.1 Section 1.1 of the Credit  Agreement shall be amended by adding the
following definitions thereto, each in its appropriate alphabetical position:

                  IDAHO  SALE means the sale by Monroc of  substantially  all of
         its assets and properties  used in its operations in the State of Idaho
         pursuant to the  Agreement  of  Purchase  and Sale of Asets dated as of
         February 5, 2002 among  Oldcastle  MMG, Inc.,  Monroc,  the Company and
         Oldcastle  Materials,  Inc.  for  a  purchase  price  of  approximately
         $21,750,000  (with  expected Net Cash Proceeds to the Agent pursuant to






         SECTION 6.2.1(A) of approximately  $16,000,000),  subject to adjustment
         as provided in such Agreement, which shall close no later than February
         8, 2002.

                  IDAHO SALE CASH COLLATERAL ACCOUNT - see SECTION 6.2.1(A).

                  OPERATING BUDGET means a weekly budget for the Company and its
         Subsidiaries setting forth cash receipts and anticipated  disbursements
         on a weekly basis for the period from  February 1, 2002  through  March
         16,  2002  and  delivered  to  the  Lenders  in  connection   with  the
         effectiveness of the Tenth Amendment.

                  TENTH  AMENDMENT  means the Tenth  Amendment to this Agreement
         and Forbearance Agreement dated as of January 31, 2002.

         1.2 Section 4.1 of the Credit  Agreement  shall be amended and restated
to read in its entirety as follows:

                  4.1 INTEREST  RATES.  The Company  promises to pay interest on
         the unpaid principal  amount of each Loan for the period  commencing on
         and including the date of such Loan to but excluding the date such Loan
         is paid in full, as follows:

                  (a) at all times while such Loan is an ABR Loan, at a rate per
         annum equal to the sum of the Alternate  Base Rate from time to time in
         effect plus the Applicable ABR Margin; and

                  (b) at all times while such Loan is a  Eurodollar  Loan,  at a
         rate  per  annum  equal  to the  sum of the  Eurodollar  Rate  (Reserve
         Adjusted)  applicable  to each  Interest  Period for such Loan plus the
         Applicable Eurodollar Margin;

         PROVIDED,  HOWEVER,  that  upon  notice to the  Company  from the Agent
         (acting upon the request of the Required  Lenders) at any time an Event
         of Default exists,  and for so long as such Event of Default continues,
         the  interest  rate  applicable  to all Loans shall be increased by 2%.
         Notwithstanding  anything to the contrary herein,  (i) each Term C Loan
         shall bear  interest  from and  including  the date of such Loan to but
         excluding  the date such Loan is paid in full at a rate per annum equal
         to the  Alternate  Base Rate plus 7%  (subject  to the  PROVISO  to the
         immediately  preceding  sentence) and (ii) at all times after the Idaho
         Sale,  a portion of the Loans in each  Facility  (other than the Term C
         Loans) equal to the  principal  amount of Loans in such  Facility  that
         would have been  prepaid  with the Net Cash  Proceeds of the Idaho Sale
         but for CLAUSE (2) of the last PROVISO to SECTION  6.2.1 (with  respect
         to each Facility,  such Facility's "DEFERRED PREPAYMENT PORTION") shall
         bear  interest  at a rate per annum  equal to the sum of the  Alternate
         Base Rate plus 7% (subject to the PROVISO to the immediately  preceding
         sentence), and the principal amount of Loans in each Facility in excess
         of such Facility's  Deferred  Prepayment Portion shall bear interest as
         set forth in the first  sentence of this  SECTION  4.1. For purposes of
         calculating  interest on the Loans,  all  payments of principal on each
         Facility shall be


         applied first to  the Deferred  Prepayment Portion of such Facility and
         second to the remainder of such Facility.

         1.3 Section  6.2.1 of the Credit  Agreement  shall be amended by adding
the following immediately after the existing text of CLAUSE (A):

         ; PROVIDED,  FURTHER, that notwithstanding anything to the contrary set
         forth in this  Agreement,  the Net Cash  Proceeds  from the Idaho  Sale
         shall be applied or  distributed  as  follows:  (1) FIRST to the Term C
         Loans,  together with any Capitalized  Interest and accrued interest on
         the principal  amount  prepaid and to fees  attributable  to the Term C
         Loans  (with  application  first to fees  thereon  then due and  owing,
         second to  interest  thereon  then due and  owing,  and third to unpaid
         principal);  (2) SECOND to a cash collateral  account under the Agent's
         control  and as to which the  Company  shall  have the  ability to make
         withdrawals  therefrom only in the  circumstances  specified below (the
         "IDAHO  SALE  CASH  COLLATERAL  Account")  in an  amount  not to exceed
         $5,000,000;  (3) THIRD to pay the fees of the Lenders  that are due and
         owing under Section 3 of the Seventh  Amendment  hereto dated as of May
         29, 2001 and other fees and expenses of the Agent  (including  fees and
         expenses,  or reserves to add to  appropriate  retainers  in respect of
         such fees and expenses,  of professional advisors to the Agent) and (4)
         FOURTH to the Loans as set forth  above in this  SECTION  6.2.1(A),  IT
         BEING  UNDERSTOOD  that the Company shall be entitled to withdraw funds
         from the Idaho  Sale Cash  Collateral  Account  solely  for (x)  paying
         amounts  specified in the  Operating  Budget or (y)  prepayment  of the
         Loans  in  accordance  with  this  SECTION  6.2.1(A),  and  only if the
         following conditions precedent are satisfied (A) the Company shall have
         submitted to the Agent a written  certification  (executed by the Chief
         Executive Officer or Chief Financial Officer of the Company) describing
         the requested  withdrawal  specifying that the proceeds thereof will be
         applied  to  one  of  such  permitted  uses  and  certifying  as to the
         following CLAUSES (B) and (C), which certification shall be in form and
         substance  satisfactory  to the Agent  (PROVIDED  that for  purposes of
         paying amounts specified in the Operating Budget,  the Company may only
         make one  withdrawal  per week in an amount  not to exceed  115% of the
         aggregate   expenses  set  forth  in  the  Operating   Budget  for  the
         then-current week plus the amount set forth in the Operating Budget for
         any  prior   week  that  was  not   spent  in  that   week),   (B)  the
         representations and warranties of the Company set forth in Section 9 of
         this  Agreement  (excluding  SECTION  9.6 and  9.8)  shall  be true and
         correct  on such date of  withdrawal  (except  to the  extent  relating
         solely to an earlier  date, in which case they were true and correct as
         of such  earlier  date) and (C) other than the  Specified  Defaults (as
         defined in the Tenth Amendment), no Event of Default or Unmatured Event
         of Default shall exist.

         SECTION 2 FORBEARANCE.  Subject to the  satisfaction  of the conditions
precedent  set forth in SECTION 4.2 below,  the Agent and the  Required  Lenders
agree that  during the  Forbearance  Period  (defined  below)  they will not (i)
declare  the  Commitments  to be  terminated  or declare all Notes and all other
Indebtedness  to be due and  payable  or  (ii)  commence  any  legal  action  or
otherwise  sue,  foreclose or take any action under any of the Loan Documents to
(a)  seek to  enforce  payment  of the  Indebtedness  or (b)  foreclose  upon or
otherwise enforce the security  interests,  liens or mortgages in, to or against
any of the collateral  granted to the Agent




under  the   Collateral   Documents  (the   "COLLATERAL").   When  used  herein,
"FORBEARANCE  PERIOD"  means the period of time  commencing  on the  Forbearance
Effective  Date and  terminating  on the  earliest to occur of (i) 11:59 p.m. on
March 16, 2002,  (ii) the date on which the  forbearance  period under any Other
Forbearance  Agreement  (defined  below)  shall  have  terminated  and (iii) the
occurrence of a Forbearance  Default. The Agent may (and at the direction of the
Required  Lenders shall),  if any Specified  Default (defined below) exists upon
the expiration or termination of the Forbearance  Period, or upon the occurrence
of any  Forbearance  Default,  declare the  Commitments to be terminated  and/or
declare all Notes and all other Indebtedness to be due and payable and otherwise
exercise all rights and remedies  under the Loan  Documents.  The Company agrees
that, upon the expiration or termination of the  Forbearance  Period and without
any further action on the part of the Agent or any Lender, any obligation of the
Agent or any  Lender to forbear  from  exercising  rights  under any of the Loan
Documents, this Agreement or applicable law shall terminate and, thereafter, the
Agent and the Lenders shall be entitled,  in their sole discretion,  to exercise
any or all of such rights as they may deem appropriate.

         SECTION 3 ACKNOWLEDGMENTS; REPRESENTATIONS AND WARRANTIES.

         3.1 The Company  expressly  acknowledges and agrees that the obligation
of the  Company  and the  other  Loan  Parties  to repay the Loans and the other
obligations  under the Loan Documents is absolute and  unconditional,  and there
exists no right of setoff or recoupment,  counterclaim  or defense of any nature
whatsoever to payment of such obligations.  The Company  acknowledges and agrees
that each of the Loan  Documents is the legal,  valid and binding  obligation of
each Loan Party thereto,  enforceable against such Loan Party in accordance with
its  terms.  The  Company  agrees  that it shall,  and shall  cause  each of its
Subsidiaries to, not dispute the validity or  enforceability  of any of the Loan
Documents,  or any of its  obligations  thereunder,  or the validity,  priority,
enforceability  or extent of the  Agent's  security  interest,  mortgage or lien
against any item of Collateral described in the Loan Documents, in any judicial,
administrative or other proceeding, either during or following the expiration or
termination of the Forbearance Period.

         3.2 The Company  represents  and  warrants to the Agent and the Lenders
that  (a) the  representations  and  warranties  made in  Section  9  (excluding
Sections 9.6 and 9.8) of the Credit  Agreement are true and correct on and as of
the Tenth Amendment  Effective Date and the Forbearance  Effective Date with the
same  effect  as if made on and as of the  Tenth  Amendment  Effective  Date and
Forbearance  Effective  Date, as the case may be (except to the extent  relating
solely to an earlier  date,  in which case they were true and correct as of such
earlier  date);  (b) other than the Specified  Defaults,  no Event of Default or
Unmatured  Event of Default  exists or will  result from the  execution  of this
Agreement;  (c) no event or  circumstance  has occurred since the Effective Date
that has  resulted,  or would  reasonably  be expected to result,  in a Material
Adverse Effect;  (d) the execution and delivery by the Company of this Agreement
and the performance by the Company of its obligations under the Credit Agreement
as amended hereby (as so amended, the "AMENDED CREDIT AGREEMENT") (i) are within
the  corporate  powers of the  Company,  (ii) have been duly  authorized  by all
necessary corporate action,  (iii) have received all necessary approval from any
Governmental  Authority and (iv) do not and will not contravene or






conflict with any provision of any law, rule or regulation or any order, decree,
judgment  or award which is binding on the  Company or any  Guarantor  or any of
their  respective  Subsidiaries  or of  any  provision  of  the  certificate  of
incorporation or bylaws or other  organizational  documents of the Company or of
any agreement,  indenture,  instrument or other document which is binding on the
Company  or any  Guarantor  or any of  their  respective  Subsidiaries;  (e) the
Amended  Credit  Agreement  is the legal,  valid and binding  obligation  of the
Company, enforceable against the Company in accordance with its terms, except as
enforceability  may be limited by applicable  bankruptcy,  insolvency or similar
laws affecting the  enforcement of creditors'  rights  generally or by equitable
principles relating to enforceability; (f) the obligation of the Company and the
other Loan Parties to repay the Loans and the other  obligations  under the Loan
Documents is absolute and unconditional,  and there exists no right of setoff or
recoupment,  counterclaim or defense of any nature whatsoever to payment of such
obligations; and (g) no Forbearance Default has occurred and is continuing.

         SECTION 4  EFFECTIVENESS.

         4.1 TENTH AMENDMENT EFFECTIVENESS.  The amendments set forth in SECTION
1 above shall  become  effective  as of the date hereof on such date (the "TENTH
AMENDMENT  EFFECTIVE DATE") when the Agent shall have received (a) a counterpart
of this Agreement  executed by the Company and the Required  Revolving  Lenders,
the Required Term A Lenders, and the Required Term B Lenders (or, in the case of
any party  other  than the  Company  from  which the  Agent has not  received  a
counterpart  hereof,  facsimile  confirmation  of the execution of a counterpart
hereof by such party) and (b) each of the following documents,  each in form and
substance satisfactory to the Agent:

         4.1.1.   REAFFIRMATION.  Counterparts of  the   Reaffirmation  of  Loan
Documents, substantially in the form of EXHIBIT A, executed by the Company, each
Guarantor and each Pledgor.

         4.1.2.  RESOLUTIONS.  Certified  copies of  resolutions of the Board of
Directors of the Company  authorizing or ratifying the  execution,  delivery and
performance by the Company of this Agreement,  the Amended Credit  Agreement and
each other Loan Document  contemplated by this Agreement to which the Company is
a party.

         4.1.3.  INCUMBENCY  AND SIGNATURE  CERTIFICATES.  A certificate  of the
Secretary or an Assistant Secretary of the Company,  certifying the names of the
officer or officers of the Company  authorized  to sign this  Agreement  and the
other  Loan  Documents  contemplated  hereby  to which the  Company  is a party,
together with a sample of the true signature of each such officer.

         4.1.4.  OPERATING  BUDGET.  An  operating  budget for the  period  from
February 1, 2002  through  March 16,  2002 for the Company and its  Subsidiaries
(setting forth anticipated cash receipts and disbursements for each week in such
month in an aggregate amount not to exceed $5,000,000).



         4.1.5.   OTHER DOCUMENTS.  Such other documents  as  the  Agent  or any
Lender may reasonably request.

         4.2      FORBEARANCE  EFFECTIVENESS. The   forbearance   set  forth  in
SECTION 2 above shall become  effective as of the date hereof (the  "FORBEARANCE
EFFECTIVE DATE"), if and only if:

         4.2.1.   EXECUTION OF THIS AGREEMENT.  The  Agent  shall have  received
counterparts  of this  Agreement  duly  executed by the Company and the Required
Lenders.

         4.2.2. ABSENCE OF DEFAULT. No Forbearance Default or Unmatured Event of
Default or Event of Default (other than the defaults  listed on EXHIBIT B hereto
(the "SPECIFIED  DEFAULTS")) under the Loan Documents shall have occurred and be
continuing.

         4.2.3.   AGREEMENTS WITH OTHER LENDERS.  The Company shall have entered
into one or more forbearance  agreements  (collectively,  the "OTHER FORBEARANCE
AGREEMENTS")  that are binding  upon,  and in full force and effect with respect
to,  (i)  each  of  the  holders  of  the  1996  Subordinated  Notes,  the  1998
Subordinated  Notes and the 2001 Subordinated  Note and (ii) BancBoston  Leasing
and Fleet  Capital  Corporation,  and  shall  have  disclosed  the terms of each
thereof to the Lenders,  and in each case the terms of which shall be acceptable
to the Agent.

         4.2.4.   REAFFIRMATION.  The Agent shall have received  counterparts of
the  Reaffirmation  of Loan Documents,  substantially  in the form of EXHIBIT A,
executed by the Company, each Guarantor and each Pledgor.


It is the current  intention of the undersigned  Lenders to forbear as specified
in the  first  sentence  of  SECTION  2 hereof  if the  conditions  set forth in
SECTIONS 4.2.1,  4.2.2 and 4.2.4 are satisfied from the date such conditions are
satisfied  until the  earlier  to occur of (x)  termination  of the  Forbearance
Period that would have  commenced had all  conditions  set forth in this SECTION
4.2 been  satisfied on such date and (y) any  acceleration  of maturity,  or the
exercise of any other remedy, by any holder of the 1996 Subordinated  Notes, the
1998 Subordinated  Notes or the 2001 Subordinated  Note,  BancBoston  Leasing or
Fleet Capital Corporation.

         SECTION 5  MISCELLANEOUS.

         5.1      CONTINUING EFFECTIVENESS, ETC.

         5.1.1.  Except as otherwise  expressly provided in this Agreement,  and
both during and  following  the  expiration or  termination  of the  Forbearance
Period, the Loan Documents shall each remain in full force and effect, and shall
not be waived, modified, supplemented,  superseded or otherwise affected by this
Agreement.  This  Agreement is not a novation  nor is it to be construed  as, or
otherwise  deemed  to be,  a  release,  waiver  or  modification  of  any  term,
condition, representation,  warranty, covenant, right or remedy set forth in any
of the Loan Documents,  except as specifically  set forth herein.  The Agent and
the Lenders  specifically





reserve  any and all  rights,  claims  and  remedies  that they have or may have
against  the  Company  under  any  of  the  Loan  Documents,  applicable  law or
otherwise.

         5.1.2.  As herein  amended,  the Credit  Agreement shall remain in full
force and effect and is hereby ratified and confirmed in all respects. After the
Tenth  Amendment  Effective  Date, all references in the Credit  Agreement,  the
Notes,  each  other  Loan  Document  and any  similar  document  to the  "Credit
Agreement" or similar terms shall refer to the Amended Credit Agreement.

         5.2  COUNTERPARTS.  This  Agreement  may be  executed  in any number of
counterparts  and by the different  parties on separate  counterparts,  and each
such  counterpart  shall be deemed to be an original  but all such  counterparts
shall together constitute one and the same Agreement.

         5.3  EXPENSES.  The  Company  agrees  to pay the  reasonable  costs and
expenses of the Agent (including  reasonable fees and  disbursements of counsel,
including,  without duplication,  the allocable costs of internal legal services
and all  disbursements  of internal  legal  counsel and the  reasonable  fees of
PricewaterhouseCoopers,  L.L.P. ("PWC"),  which shall continue to be retained as
financial  advisor to the Agent) in connection with the  preparation,  execution
and  delivery  of this  Agreement  and the  ongoing  work  being  done by PwC in
connection with the workout of the Company's Debt.

         5.4      GOVERNING LAW.  This Agreement shall be a contract  made under
and governed by the laws of the State of Illinois  applicable to contracts  made
and to be wholly performed within the State of Illinois.

         5.5  SUCCESSORS AND ASSIGNS.  This Agreement  shall be binding upon the
Company, the Lenders and the Agent and their respective  successors and assigns,
and shall inure to the benefit of the Company, the Lenders and the Agent and the
successors and assigns of the Lenders and the Agent.

         5.6      LOAN DOCUMENT.  This Agreement is a Loan Document.

         5.7  FORBEARANCE  DEFAULTS.   The  following  events  shall  constitute
"FORBEARANCE  DEFAULTS":  (a) the Company  fails to observe or perform any term,
covenant,  or agreement  binding on it contained in this  Agreement,  any of the
Loan  Documents,  or any other  agreement,  instrument  or document  executed in
connection with any of the foregoing;  (b) the occurrence of an Event of Default
or  Unmatured  Event of  Default,  other than a  Specified  Default;  or (c) any
warranty  made by the Company  herein is untrue or  misleading  in any  material
respect. Upon the expiration or termination of the Forbearance Period, the Agent
and the Lenders  shall be entitled  (but not  required) to exercise any of their
rights  and  remedies  under  any of  the  Loan  Documents  or  applicable  law,
including,  without  limitation,  the right to  terminate  the  Commitments,  to
declare all of the Indebtedness to be immediately due and payable and to enforce
its liens on, and security  interests in, the Collateral.  The occurrence of any
Forbearance  Default  shall  constitute  an  Event  of  Default  under  the Loan
Documents.



         SECTION 6 RELEASE OF CLAIMS. THE COMPANY HEREBY ACKNOWLEDGES AND AGREES
THAT IT DOES NOT HAVE ANY DEFENSE, COUNTERCLAIM, OFFSET, CROSS-COMPLAINT,  CLAIM
OR DEMAND OF ANY KIND OR NATURE  WHATSOEVER  THAT CAN BE  ASSERTED  TO REDUCE OR
ELIMINATE  ALL OR ANY PART OF LIABILITY OF THE COMPANY TO REPAY THE AGENT OR ANY
LENDER AS PROVIDED IN THE CREDIT  AGREEMENT  AND THE OTHER LOAN  DOCUMENTS OR TO
SEEK  AFFIRMATIVE  RELIEF OR DAMAGES OF ANY KIND OR NATURE FROM THE AGENT OR ANY
LENDER.  THE COMPANY  HEREBY  VOLUNTARILY  AND  KNOWINGLY  RELEASES  AND FOREVER
DISCHARGES  THE  AGENT  AND THE  LENDERS,  AND THE  AGENT'S  AND  EACH  LENDER'S
PREDECESSORS,  AGENTS,  EMPLOYEES,  SUCCESSORS  AND  ASSIGNS,  FROM ALL POSSIBLE
CLAIMS,  DEMANDS,  ACTIONS,  CAUSES OF ACTION,  DAMAGES,  COSTS OR EXPENSES, AND
LIABILITIES  WHATSOEVER,   KNOWN  OR  UNKNOWN,   ANTICIPATED  OR  UNANTICIPATED,
SUSPECTED OR UNSUSPECTED, FIXED, CONTINGENT OR CONDITIONAL, AT LAW OR IN EQUITY,
ORIGINATING  IN  WHOLE  OR IN PART ON OR  BEFORE  THE  DATE  THIS  AGREEMENT  IS
EXECUTED,  WHICH THEY MAY NOW OR  HEREAFTER  HAVE  AGAINST THE AGENT OR ANY SUCH
LENDER,  AND THE  AGENT'S  OR SUCH  LENDER'S  PREDECESSORS,  AGENTS,  EMPLOYEES,
SUCCESSORS  AND  ASSIGNS,  IF ANY, AND  IRRESPECTIVE  OF WHETHER ANY SUCH CLAIMS
ARISE OUT OF  CONTRACT,  TORT,  VIOLATION  OF LAW OR  REGULATION  OR  OTHERWISE,
INCLUDING,  WITHOUT  LIMITATION,  THE  EXERCISE OF ANY RIGHT OR REMEDY UNDER THE
CREDIT AGREEMENT OR OTHER LOAN DOCUMENTS,  AND NEGOTIATION AND EXECUTION OF THIS
AGREEMENT.








         Delivered as of the day and year first above written.

1

                   U.S. AGGREGATES, INC.


                  By:
                     --------------------------------------------------------
                  Title:
                        -----------------------------------------------------


                   BANK OF AMERICA, N.A., as Agent


                  By:
                     --------------------------------------------------------
                  Title:
                        -----------------------------------------------------


                   BANK OF AMERICA, N.A., as a Lender and as Issuing Lender


                  By:
                     --------------------------------------------------------
                  Title:
                        -----------------------------------------------------


                   FLEET NATIONAL BANK (formerly known as BankBoston,
                   N.A.), as a Lender


                  By:
                     --------------------------------------------------------
                  Title:
                        -----------------------------------------------------


                   NATIONAL CITY BANK, as a Lender


                  By:
                     --------------------------------------------------------
                  Title:
                        -----------------------------------------------------






                     BANK OF SCOTLAND, as a Lender


                    By:
                       --------------------------------------------------------
                    Title:
                          -----------------------------------------------------


                     IBJ WHITEHALL BANK AND TRUST COMPANY, as a Lender


                    By:
                       --------------------------------------------------------
                    Title:
                          -----------------------------------------------------


                     COMERICA BANK - CALIFORNIA, as a Lender


                    By:
                       --------------------------------------------------------
                    Title:
                          -----------------------------------------------------


                     ZIONS FIRST NATIONAL BANK, as a Lender


                    By:
                       --------------------------------------------------------
                    Title:
                          -----------------------------------------------------


                     UNION BANK OF CALIFORNIA, N.A., as a
                     Lender

                    By:
                       --------------------------------------------------------
                    Title:
                          -----------------------------------------------------



                                       10




                 PILGRIM PRIME RATE TRUST, as a Lender

                 By: Pilgrim Investments, Inc., as its Investment Manager

                By:
                   --------------------------------------------------------
                Title:
                      -----------------------------------------------------


                 SENIOR DEBT PORTFOLIO

                 By: Boston Management and Research, as Investment Advisor

                By:
                   --------------------------------------------------------
                Title:
                      -----------------------------------------------------


                 EATON VANCE INSTITUTIONAL SENIOR LOAN FUND

                 By: Eaton Vance Management, as Investment Advisor

                By:
                   --------------------------------------------------------
                Title:
                      -----------------------------------------------------


                 EATON VANCE SENIOR INCOME TRUST

                 By: Eaton Vance Management, as Investment Advisor

                By:
                   --------------------------------------------------------
                Title:
                      -----------------------------------------------------


                KZH-HIGHLAND - 2 LLC

                By:
                   --------------------------------------------------------
                Title:
                      -----------------------------------------------------

                                       11




           ARCHIMEDES FUNDING II, LLC

           By: ING Capital Advisors, LLC, as Collateral Manager

           By:
              --------------------------------------------------------
           Title:
                 -----------------------------------------------------


           ARCHIMEDES FUNDING III, LLC

           By: ING Capital Advisors, LLC, as Collateral Manager

           By:
              --------------------------------------------------------
           Title:
                 -----------------------------------------------------


           SEQUILS-ING 1 (HBDGM), LTD.

           By: ING Capital Advisors, LLC, as Collateral Manager

           By:
              --------------------------------------------------------
           Title:
                 -----------------------------------------------------


           BANK ONE, N.A.

           By:
              --------------------------------------------------------
           Title:
                 -----------------------------------------------------


           BRANCH BANKING AND TRUST COMPANY

           By:
              --------------------------------------------------------
           Title:
                 -----------------------------------------------------

                                       12



                                     HIGHLAND CRUSADER OFFSHORE PARTNERS

                                           By:________________________________
                                           Title:_____________________________


                                       13



                                    EXHIBIT A

                              FORM OF REAFFIRMATION
                                OF LOAN DOCUMENTS
                              ---------------------

                                                          as of January 31, 2002


Bank of America, N.A., as Agent
and the other parties to the Third
Amended and Restated Credit
Agreement referred to below
1455 Market Street
San Francisco, California  94103
Attn:  Agency Management Services #5596

                                   RE:  REAFFIRMATION OF LOAN DOCUMENTS


Ladies and Gentlemen:

        Please refer to:

     1. The Amended and Restated Security Agreement dated as of June 5, 1998
(the "SECURITY AGREEMENT") among U.S. Aggregates, Inc. (the "COMPANY"), Western
Aggregates Holding Corporation, a Delaware corporation, Jensen Construction and
Development, Inc., a Nevada corporation, Sandia Construction, Inc., a Nevada
corporation, Cox Rock Products Inc., a Utah corporation, Cox Transport
Corporation, a Utah corporation, SRM Holdings Corp., a Delaware corporation, SRM
Aggregates, Inc., an Alabama corporation, A-Block Company, Inc., an Arizona
corporation, A-Block Company, Inc., a California corporation, Mohave Concrete
and Materials, Inc., an Arizona corporation, Mohave Concrete and Materials,
Inc., a Nevada corporation, Mulberry Rock Corporation, a Georgia corporation,
Valley Asphalt, Inc., a Utah corporation, BHY Ready Mix, Inc., a Tennessee
corporation, Geodyne Beck Rock Products, Inc., a Utah corporation, Western Rock
Products Corp., a Utah corporation, Tri-State Testing Laboratories, Inc., a Utah
corporation, Dekalb Stone, Inc., a Georgia corporation, Bradley Stone & Sand,
Inc., a Tennessee corporation, Monroc, Inc., a Delaware corporation, Western
Aggregates, Inc., a Utah corporation, Eagle Valley Materials, Inc., Nevada
Aggregates, Inc., Bama Crushed Corporation, Grove Materials Corporation and Bank
of America, N.A. in its capacity as Agent (in such capacity, the "AGENT");

     2. The Amended and Restated Guaranty dated as of June 5, 1998 (the
"GUARANTY") executed in favor of the Agent and various other parties by Western
Aggregates Holding Corporation, Jensen Construction and Development, Inc.,
Sandia Construction, Inc., Cox Rock


                                       14



Products Inc., Cox Transport Corporation, SRM Holdings Corp., SRM Aggregates,
Inc., A-Block Company, Inc., A-Block Company, Inc., Mohave Concrete and
Materials, Inc., Mohave Concrete and Materials, Inc., Mulberry Rock Corporation,
Valley Asphalt, Inc., BHY Ready Mix, Inc., Geodyne Beck Rock Products, Inc.,
Western Rock Products Corp., Tri-State Testing Laboratories, Inc., Dekalb Stone,
Inc ., Bradley Stone & Sand, Inc., Monroc, Inc., Eagle Valley Materials, Inc.,
Nevada Aggregates, Inc., Bama Crushed Corporation, Grove Materials Corporation ;

     3.       The following Pledge Agreements:

     (a) the Amended and Restated Company Pledge Agreement dated as of June 5,
1998 between the Company and the Agent, and

     (b) the Amended and Restated Subsidiary Pledge Agreement dated as of June
5, 1998 between Western Aggregates Holding Corp., Western Rock Products Corp.,
SRM Holdings Corp., Southern Ready Mix, Inc., Monroc, Inc., and the Agent,

(all of the foregoing  Pledge  Agreements,  in each case as heretofore  amended,
being collectively referred to herein as the "PLEDGE AGREEMENTS").

     4. The Patent Security Agreement made as of March 30, 1995 by Cox Rock
Products Inc. in favor of the Agent (the "PATENT SECURITY AGREEMENT").

     5. Each other Loan Document (as defined in the Credit Agreement referred to
below).

     The Security Agreement, the Guaranty, the Pledge Agreements, the Patent
Security Agreement and the other Loan Documents referred to above, in each case
as heretofore amended, are collectively referred to herein as the "DOCUMENTS".
Capitalized terms not otherwise defined herein will have the meanings given in
the Credit Agreement referred to below.

     Each of the undersigned acknowledges that the Company, the Banks and the
Agent have executed the Tenth Amendment to Credit Agreement and Forbearance
Agreement (the "AGREEMENT") with respect to the Third Amended and Restated
Credit Agreement dated as of June 5, 1998 (as amended, supplemented or otherwise
modified from time to time, the "CREDIT AGREEMENT").

     Each of the undersigned hereby (i) confirms that each Document to which
such undersigned is a party remains in full force and effect after giving effect
to the effectiveness of the Agreement and that, upon the Tenth Amendment
Effective Date, all references in such Document to the "Credit Agreement" shall
be references to the Credit Agreement as amended by the Agreement, (ii)
acknowledges and agrees that its obligations under the Documents are absolute
and unconditional, and there exists no right of setoff or recoupment,
counterclaim or defense of any nature whatsoever thereto and (iii) VOLUNTARILY
AND KNOWINGLY RELEASES AND





FOREVER DISCHARGES THE AGENT AND THE LENDERS, AND THE AGENT'S AND LENDER'S
PREDECESSORS, AGENTS, EMPLOYEES, SUCCESSORS AND ASSIGNS, FROM ALL POSSIBLE
CLAIMS, DEMANDS, ACTIONS, CAUSES OF ACTION, DAMAGES, COSTS, OR EXPENSES, AND
LIABILITIES WHATSOEVER, KNOWN OR UNKNOWN, ANTICIPATED OR UNANTICIPATED,
SUSPECTED OR UNSUSPECTED, FIXED, CONTINGENT OR CONDITIONAL, AT LAW OR IN EQUITY,
ORIGINATING IN WHOLE OR IN PART ON OR BEFORE THE DATE THE FOREGOING AGREEMENT IS
EXECUTED, WHICH IT MAY NOW OR HEREAFTER HAVE AGAINST THE AGENT OR ANY SUCH
LENDER, AND THE AGENT'S OR SUCH LENDER'S PREDECESSORS, AGENTS, EMPLOYEES,
SUCCESSORS AND ASSIGNS, IF ANY, AND IRRESPECTIVE OF WHETHER ANY SUCH CLAIMS
ARISE OUT OF CONTRACT, TORT, VIOLATION OF LAW OR REGULATION, OR OTHERWISE,
INCLUDING, WITHOUT LIMITATION, THE EXERCISE OF ANY RIGHT OR REMEDY UNDER THE
CREDIT AGREEMENT OR ANY OTHER DOCUMENT, AND NEGOTIATION AND EXECUTION OF THE
FOREGOING AGREEMENT.

                                       3



        The letter  agreement may be signed in  counterparts  and by the various
parties as herein on  separate  counterparts.  This  letter  agreement  shall be
governed by the laws of the State of Illinois  applicable to contracts  made and
to be performed entirely within such State.

                                            U.S. AGGREGATES, INC.

                                          By:_______________________________
                                          Title:____________________________


                                          SRM HOLDINGS CORP.

                                          By:________________________________
                                          Title:_____________________________


                                          WESTERN AGGREGATES HOLDING CORP.

                                          By:________________________________
                                          Title:_____________________________


                                          WESTERN ROCK PRODUCTS CORP.

                                          By:________________________________
                                          Title:_____________________________


                                          JENSEN CONSTRUCTION & DEVELOPMENT,
                                          INC.

                                          By:________________________________
                                          Title:_____________________________

                                          SANDIA CONSTRUCTION, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          TRI-STATE TESTING LABORATORIES, INC.

                                          By:________________________________
                                          Title:_____________________________

                                       4




                                          MOHAVE CONCRETE AND MATERIALS, INC.,
                                          a Nevada corporation

                                          By:________________________________
                                          Title:_____________________________


                                          MOHAVE CONCRETE AND MATERIALS, INC.,
                                          an Arizona corporation

                                          By:________________________________
                                          Title:_____________________________


                                          A-BLOCK COMPANY, INC.,
                                          an Arizona corporation

                                          By:________________________________
                                          Title:_____________________________


                                          A-BLOCK COMPANY, INC.,
                                          a California corporation

                                          By:________________________________
                                          Title:_____________________________



                                       5




                                          COX ROCK PRODUCTS, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          COX TRANSPORT CORPORATION

                                          By:________________________________
                                          Title:_____________________________


                                          VALLEY ASPHALT, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          GEODYNE BECK ROCK PRODUCTS, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          SRM AGGREGATES, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          DEKALB STONE, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          MULBERRY ROCK CORPORATION

                                          By:________________________________
                                          Title:_____________________________


                                       6





                                          BHY READY MIX, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          BRADLEY STONE & SAND, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          MONROC, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          WESTERN AGGREGATES, INC.

                                          By:________________________________
                                          Title:_____________________________


                                          EAGLE VALLEY MATERIALS, INC.

                                          By:________________________________
                                          Title:________________________

                                          NEVADA AGGREGATES, INC.

                                          By:________________________________
                                          Title:_____________________________

                                          BAMA CRUSHED CORPORATION

                                          By:________________________________
                                          Title:__________________________

                                          GROVE MATERIALS CORPORATION

                                          By:________________________________
                                          Title:_____________________________

                                       7




ACKNOWLEDGED AND AGREED
as of the date first written above

BANK OF AMERICA, N.A., as Agent


By:________________________________
Title:_______________________________



                                       8





                                    EXHIBIT B

                               SPECIFIED DEFAULTS

1. Any Event of  Default  caused  by  failure  to pay the Term C Loans  (and all
Capitalized  Interest and other amounts  owing with respect  thereto) on January
31, 2002.

2. Any Event of Default  caused by failure  to pay the  interest  in cash on the
Loans on at any time from and  including  January 31, 2002 through and including
the termination of the Forbearance Period.

3. Any Event of  Default  caused by  failure to pay fees on at any time from and
including  January  31,  2002  through  and  including  the  termination  of the
Forbearance Period.

4. Any Event of Default  caused by the failure to comply with Section  10.6.4 of
the Credit Agreement on December 31, 2001.

5. Any Event of  Default  caused by the  failure of the  Company to comply  with
Section  6.2.1(b) of the Credit  Agreement  at any time  during the  Forbearance
Period.


                                       9