Document:

Exhibit 4.1.9
                                EIGHTH AMENDMENT

         THIS EIGHTH AMENDMENT dated as of August 13, 2001 (this "Amendment") is
to the Third Amended and Restated Credit Agreement (as amended, the "Credit
Agreement") dated as of June 5, 1998 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"). Unless otherwise
defined herein, terms defined in the Credit Agreement are used herein as defined
in the Credit Agreement.

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

         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. Effective on (and subject to the occurrence of) the Eighth
Amendment Effective Date (as defined below):

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

         Eighth Amendment means the Eighth Amendment to this Agreement dated as
of August 13, 2001.

                  Eighth Amendment Effective Date means the "Eighth Amendment
         Effective Date" as defined in the Eighth Amendment.

                  New Term C Lender means each financial institution signatory
         to the Eighth Amendment as a "New Term C Lender."

                  New Term C Loan - see Section 2.1.4.

                  New Term C Commitment Percentage means, with respect to any
         New Term C Lender, the percentage which (a) the Commitment of such
         Lender to make New Term C Loans is of (b) the aggregate amount of the
         Commitments of all New Term C Lenders to make New Term C Loans.

         (b) Section 1.1 to the Credit Agreement shall be amended by deleting
the definition of "Term C Loan Commitment" and inserting the following in lieu
thereof:

                  Term C Loan Commitment means, as to any Lender, the commitment
         of such Lender to make a Term C Loan pursuant to Section 2.1.4. As of
         the Eighth Amendment Effective Date, the only Lenders with remaining
         Term C Loan Commitments are the New Term C Lenders and the amount of
         each such Lender's Term C Loan Commitment on such date is set forth
         across from its signature to the Eighth Amendment in its capacity as a
         New Term C Lender. The aggregate amount of the Term C Loan Commitments
         as of the Eighth Amendment Effective Date is $3,000,000.

         1.2 Section 2.1.4 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  2.1.4 Term C Loan Commitments. Prior to the Eighth Amendment
         Effective Date each Term C Lender made term loans in the original
         aggregate principal amount of $6,000,000 to the Company as contemplated
         by the Seventh Amendment Supplement. Each New Term C Lender severally
         agrees, on the terms and conditions set forth herein, to make one or
         more loans (each, a "New Term C Loan") to the Company from time to time
         from and after the Eighth Amendment Effective Date to but excluding
         September 30, 2001 in an amount equal to such New Term C Lender's New
         Term C Commitment Percentage of such aggregate amount of New Term C
         Loans as the Company may request under such Lenders' Commitments to
         make New Term C Loans; provided, that no New Term C Lender shall be
         required to make any New Term C Loan if, after giving effect thereto,
         (x) the aggregate principal amount of all New Term C Loans made by all
         New Term C Lenders would exceed $3,000,000 or (y) the aggregate
         principal amount of all New Term C Loans made by such New Term C Lender
         would exceed the amount set forth opposite such Lender's signature to
         the Eighth Amendment in its capacity as a "New Term C Lender". All such
         loans referred to in the two immediately preceding sentences (including
         the New Term C Loans) are collectively referred to herein as the "Term
         C Loans". Amounts repaid with respect to the Term C Loans may not be
         reborrowed. Notwithstanding the last sentence of Section 2.3,
         borrowings of Term C Loans may be made in minimum amounts of $500,000
         or higher integral multiples of $50,000.

         1.3 Section 2.3 of the Credit Agreement shall be amended by adding the
following at the end thereof:

         Notwithstanding anything to the contrary herein, any borrowing of New
         Term C Loans shall be made by the New Term C Lenders in accordance with
         their respective New Term C Commitment Percentages, and any Term C
         Lender that is not a New Term C Lender shall have no obligation to make
         any New Term C Loan.

         1.4 Section 5.6 of the Credit Agreement shall be amended and restated
to read in its entirety as follows:

                  5.6 Fee. The Company shall be, and hereby is, obligated to pay
         the Term C Lenders a fee of $1,275,000, to be allocated among the Term
         C Lenders as provided in this Section 5.6, on the earlier to occur of
         (x) the closing of the Southeastern Asset Sale and (y) September 28,
         2001. Each Term C Lender shall receive its allocable portion of
         $1,150,000 of this fee in accordance with its original Term C
         Commitment Percentage. Each New Term C Lender shall receive its
         allocable portion of the $125,000 balance of this fee in accordance
         with its New Term C Commitment Percentage. The Company shall pay the
         entire amount of this $1,275,000 fee to the Agent on or before the date
         required therefor pursuant to the first sentence of this Section 5.6,
         and the Agent shall allocate and distribute the fee among the Term C
         Lenders and the New Term C Lenders as provided in the immediately
         preceding two sentences of this Section 5.6.

         1.5 Section 6.1.3 of the Credit Agreement shall be amended by deleting
the last sentence thereof and inserting in its place:

         From and after the Eighth Amendment Effective Date, all reductions of
         the Term C Loan Commitments shall be pro rata among the New Term C
         Lenders according to their respective New Term C Commitment
         Percentages.

         1.6 Section 11 of the Credit Agreement shall be amended by adding the
following Section 11.4:

                  11.4 New Term C Loans. The obligation of each New Term C
         Lender to make each New Term C Loan is, in addition to being subject to
         the conditions set forth in Section 11.3, subject to the conditions
         precedent that the proceeds of such New Term C Loan shall be used for
         one or more expenditures (including, without limitation, all interest
         that would be payable in cash on the Loans at any time from and
         including the Eighth Amendment Effective Date to and through September
         30, 2001) described in the budget of the Company delivered to the
         Lenders prior to the Eighth Amendment Effective Date, as such budget
         may be amended from time to time with the approval of the Required
         Lenders. The Company shall, in connection with requesting each
         borrowing of New Term C Loans, deliver to the Agent a certificate
         certifying that the proceeds of the New Term C Loans requested will be
         used for such purpose.

         SECTION 2 WAIVERS. Effective on (and subject to the occurrence of) the
Eighth Amendment Effective Date, the Required Lenders hereby waive (i) any Event
of Default caused by the Company's noncompliance with Section 10.6.4 of the
Credit Agreement for the period ended June 30, 2001 and (ii) any Event of
Default under Section 12.1.2 of the Credit Agreement caused by (x) any default
under the 1996 Subordinated Notes, the 1998 Subordinated Notes, the 2001
Subordinated Note, and the Note and Warrant Purchase Agreement, (y) any default
under any of (1) the Master Lease Agreement dated as of September 10, 1997 by
and between BancBoston Leasing, Inc.("BBL") and SRM Aggregates, Inc. ("SRM
Aggregates"), (2) the Equipment Acquisition Agreement dated as of January 20,
2000 between BBL and SRM Aggregates, Master Lease Agreement No. 34577 dated as
of September 25, 2000 between Fleet Capital Corporation ("FCC") and SRM
Aggregates, (3) any of the Equipment Acquisition Agreements dated as of
September 25, 2000 between FCC and SRM Aggregates with respect to the Mulberry
Quarry -- Crushing Plant, the Pride Quarry -- Rail and Barge Loadout and the
Pride Quarry Addition, (4) Master Lease Agreement by and between BBL and Sandia
Construction, Inc., (5) Master Lease Agreement by and between BBL and Cox
Transport Corporation, and (6) Master Lease Agreement by and between BBL and
Geodyne, Inc. (now known as Geodyne Beck Rock Products, Inc.) (all of the
agreements referred to in this clause (y) being referred to herein as the "Fleet
Lease Documents"), and (z) any default under the Subordinated Debt owing by the
Company to GTCR, in each case to the extent such defaults under the agreements
and instruments referred to in clauses (x), (y) and (z) above have been waived
in a manner satisfactory to the Agent in its sole and absolute discretion on or
prior to the Eighth Amendment Effective Date by the requisite holders of the
Debt evidenced by such agreements and instruments.

         SECTION 3 AUTHORIZATION TO DELIVER FLEET RELEASES. Effective on (and
subject to the occurrence of) the Eighth Amendment Effective Date, the Required
Lenders hereby authorize the Agent to execute, deliver, and/or file and/or
record in any appropriate offices (or to authorize the Company or any Guarantor
to execute, deliver and/or file and/or record in any appropriate office) any and
all releases and other instruments necessary or otherwise advisable to release
the security interests and liens of the Agent in and to the equipment and other
property in which BBL or FCC asserts an interest under the Fleet Lease
Documents.

         SECTION 4 REPRESENTATIONS AND WARRANTIES. 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 Eighth Amendment Effective Date
with the same effect as if made on and as of the Eighth Amendment Effective Date
(except to the extent relating solely to an earlier date, in which case they
were true and correct as of such earlier date); (b) except as waived hereby, no
Event of Default or Unmatured Event of Default exists or will result from the
execution of this Amendment; (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
Amendment 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; and (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.

         SECTION 5 EFFECTIVENESS. The amendments set forth in Section 1 above
and the waivers set forth in Section 2 above shall become effective as of the
date hereof on such date (the "Eighth Amendment Effective Date") when the Agent
shall have received (a) a counterpart of this Amendment executed by the Company
and each of the pertinent Required 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:

         5.1 Reaffirmation. Counterparts of the Reaffirmation of Loan Documents,
substantially in the form of Exhibit A, executed by the Company, each Guarantor
and each Pledgor.

         5.2 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 Amendment, the Amended Credit Agreement and
each other Loan Document contemplated by this Amendment to which the Company is
a party.

         5.3 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 Amendment 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.

         5.4 Subordinated Debt Waiver. The holders of the 1996 Subordinated
Notes, the 1998 Subordinated Notes and the 2001 Subordinated Note shall have
waived, in form and substance satisfactory to the Agent, any default under
Section 8O of the Note and Warrant Purchase Agreement with respect to the period
ended June 30, 2001.

         5.5 Fleet Loan Documents. Each of BBL and FCC shall have waived, in
form and substance satisfactory to the Agent, any default under the Fleet Lease
Documents.

         5.6 Other Documents. Such other documents as the Agent or any Lender
may reasonably request.

SECTION 6 MISCELLANEOUS.

         6.1 Continuing Effectiveness, etc. As herein amended, the Credit
Agreement shall remain in full force and effect and is hereby ratified and
confirmed in all respects. After the Eighth 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. The waivers contained in Section 2 hereof are limited
strictly to their terms and shall not apply to non-compliance with any other
term of any Loan Document.

         6.2 Counterparts. This Amendment 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 Amendment.
         6.3 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 Amendment and the ongoing work being done by PwC in
connection with the workout of the Company's Debt.

         6.4 Governing Law. This Amendment 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.

         6.5 Successors and Assigns. This Amendment 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.

         6.6 Loan Document. This Amendment is a Loan Document.

         SECTION 7 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 AMENDMENT IS
EXECUTED, WHICH THE 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
AMENDMENT.

<PAGE>

        Delivered as of the day and year first above written.

                                   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:
                                      --------------------------------

<PAGE>

                                   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:
                                      --------------------------------

<PAGE>

                                   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:
                                        ------------------------------

<PAGE>

                                ARCHIMEDES FUNDING, 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:
                                    --------------------------------

<PAGE>

                                HIGHLAND CRUSADER OFFSHORE PARTNERS

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

<PAGE>

NEW TERM C LENDERS:

New Term C Commitment:
---------------------

$710,560.44                     BANK OF AMERICA, N.A.

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$251,054.00                     NATIONAL CITY BANK

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$236,842.21                     BANK OF SCOTLAND

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$236,842.21                     IBJ WHITEHALL BANK AND TRUST COMPANY

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$0.00                           COMERICA BANK - CALIFORNIA

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$477,818.99                     ZIONS FIRST NATIONAL BANK

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$216,435.00                     UNION BANK OF CALIFORNIA, N.A.

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$233,387.45                     PILGRIM PRIME RATE TRUST

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$186,320.19                     SENIOR DEBT PORTFOLIO

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$12,509.11                      EATON VANCE INSTITUTIONAL SENIOR LOAN FUND

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$33,357.62                      EATON VANCE SENIOR INCOME TRUST

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

<PAGE>

$109,643.82                     ARCHIMEDES FUNDING III, LLC

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$109,643.82                     SEQUILS - ING 1 (HBDGM), LTD.

                                  By:     ING Capital Advisors, LLC, as
                                  Collateral Agent

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$0.00                             BANK ONE, NA

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

$185,585.16                       BRANCH BANKING AND TRUST COMPANY

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

<PAGE>

$0.00                             HIGHLAND CRUSADER OFFSHORE PARTNERS

                                By:
                                    --------------------------------

                                Title:
                                    --------------------------------

<PAGE>

                                    EXHIBIT A
                              FORM OF REAFFIRMATION
                                OF LOAN DOCUMENTS

                             as of August [12], 2001

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 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.,

<PAGE>

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 Eighth Amendment (the "Amendment") 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 Amendment and that, upon such effectiveness, all
references in such Document to the "Credit Agreement" shall be references to the
Credit Agreement as amended by the Amendment, (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 AMENDMENT 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 AMENDMENT.

<PAGE>

        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:_____________________________

                                      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:_____________________________

<PAGE>

                                      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:_____________________________

<PAGE>

                                      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:_____________________________

ACKNOWLEDGED AND AGREED
as of the date first written above

BANK OF AMERICA, N.A., as Agent

By:________________________________
Title:_______________________________Exhibit 4.1.10
                                 NINTH AMENDMENT

         THIS NINTH AMENDMENT dated as of September 27, 2001 (this "Amendment")
is to the Third Amended and Restated Credit Agreement (as amended, the "Credit
Agreement") dated as of June 5, 1998 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"). Unless otherwise
defined herein, terms defined in the Credit Agreement are used herein as defined
in the Credit Agreement.

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

         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. Effective on (and subject to the occurrence of) the Ninth
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:

         Ninth Amendment means the Ninth Amendment to this Agreement dated as of
September 27, 2001.

         Ninth Amendment Effective Date means the "Ninth Amendment Effective
Date" as defined in the Ninth Amendment.

         1.2 Section 3.1 of the Credit Agreement shall be amended by (i)
amending and restating clause (e) to read in its entirety as follows

         (e) Each Term C Loan (and all Capitalized Interest and other amounts
owing with respect thereto) of such Lender shall be paid in full on November 16,
2001.

and (ii) adding the following sentence at the end of such Section

         Notwithstanding the foregoing, the quarterly installment of the Term B
         Loans scheduled under clause (c) above to be paid on September 30, 2001
         shall be deferred until November 16, 2001.

         1.3 Section 4.2 of the Credit Agreement shall be amended by inserting
the following after the second sentence of such Section:

         Notwithstanding the two immediately preceding sentences, any interest
         that (but for this sentence) would be payable in cash (giving effect to
         the fifth sentence of this Section) at any time from and including the
         Ninth Amendment Effective Date to but excluding November 16, 2001 shall
         be payable in cash on November 16, 2001.

         1.4 Section 5.6 of the Credit Agreement shall be amended by deleting
the date "September 28, 2001" where it appears in such Section and inserting in
lieu thereof the date "November 16, 2001".

         SECTION 2 WAIVERS. Effective on (and subject to the occurrence of) the
Ninth Amendment Effective Date, the Required Lenders hereby waive (i) any Event
of Default caused by the Company's noncompliance with Section 10.6.4 of the
Credit Agreement for the period ended September 30, 2001 and (ii) any Event of
Default under Section 12.1.2 of the Credit Agreement caused by any default after
September 30, 2001 under any of (1) the Master Lease Agreement dated as of
September 10, 1997 by and between BancBoston Leasing, Inc.("BBL") and SRM
Aggregates, Inc. ("SRM Aggregates"), (2) the Equipment Acquisition Agreement
dated as of January 20, 2000 between BBL and SRM Aggregates, Master Lease
Agreement No. 34577 dated as of September 25, 2000 between Fleet Capital
Corporation ("FCC") and SRM Aggregates, (3) any of the Equipment Acquisition
Agreements dated as of September 25, 2000 between FCC and SRM Aggregates with
respect to the Mulberry Quarry -- Crushing Plant, the Pride Quarry -- Rail and
Barge Loadout and the Pride Quarry Addition, (4) Master Lease Agreement by and
between BBL and Sandia Construction, Inc., (5) Master Lease Agreement by and
between BBL and Cox Transport Corporation, and (6) Master Lease Agreement by and
between BBL and Geodyne, Inc. (now known as Geodyne Beck Rock Products, Inc.)
(all of the agreements referred to the foregoing clauses (1) through (5) being
referred to herein as the "Fleet Lease Documents"), in each case to the extent
such defaults under the Fleet Lease Documents have been waived in a manner
satisfactory to the Agent in its sole and absolute discretion on or prior to the
Ninth Amendment Effective Date by the requisite holders of the Debt evidenced by
the Fleet Lease Documents.

         SECTION 3 REPRESENTATIONS AND WARRANTIES. 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 Ninth Amendment Effective Date
with the same effect as if made on and as of the Ninth Amendment Effective Date
(except to the extent relating solely to an earlier date, in which case they
were true and correct as of such earlier date); (b) except as waived hereby, no
Event of Default or Unmatured Event of Default exists or will result from the
execution of this Amendment; (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
Amendment 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; and (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.

         SECTION 4 EFFECTIVENESS. The amendments set forth in Section 1 above
and the waivers set forth in Section 2 above shall become effective as of the
date hereof on such date (the "Ninth Amendment Effective Date") when the Agent
shall have received (a) a counterpart of this Amendment executed by the Company
and each of the 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 Reaffirmation. Counterparts of the Reaffirmation of Loan Documents,
substantially in the form of Exhibit A, executed by the Company, each Guarantor
and each Pledgor.

         4.2 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 Amendment, the Amended Credit Agreement and
each other Loan Document contemplated by this Amendment to which the Company is
a party.

         4.3 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 Amendment 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.

         4.4 Subordinated Debt Waiver. The holders of the 1996 Subordinated
Notes, the 1998 Subordinated Notes and the 2001 Subordinated Note shall have
waived, in form and substance satisfactory to the Agent, any default under
Section 8O of the Note and Warrant Purchase Agreement with respect to the period
ending September 30, 2001.

         4.5 Fleet Loan Documents. Each of BBL and FCC shall have waived, in
form and substance satisfactory to the Agent, any default under the Fleet Lease
Documents.

         4.6 Other Documents. Such other documents as the Agent or any Lender
may reasonably request.

SECTION 5 MISCELLANEOUS.

         5.1 Continuing Effectiveness, etc. As herein amended, the Credit
Agreement shall remain in full force and effect and is hereby ratified and
confirmed in all respects. After the Ninth 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. The waivers contained in Section 2 hereof are limited
strictly to their terms and shall not apply to non-compliance with any other
term of any Loan Document.

         5.2 Counterparts. This Amendment 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 Amendment.

         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 Amendment and the ongoing work being done by PwC in
connection with the workout of the Company's Debt.

         5.4 Governing Law. This Amendment 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 Amendment 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 Amendment is a Loan Document.

         5.7 Deferral of Seventh Amendment Fee. The undersigned hereby agree
that the fee specified in Section 3 of the Seventh Amendment shall not be
payable until the earlier to occur of (x) November 16, 2001 and (y) the closing
of the Southeastern Assets Sale.

         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 AMENDMENT IS
EXECUTED, WHICH THE 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
AMENDMENT.

<PAGE>

         Delivered as of the day and year first above written.

                                       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:
                                             --------------------------------

<PAGE>

                                       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:
                                             --------------------------------

<PAGE>

                                       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:
                                             --------------------------------

<PAGE>

                                      ARCHIMEDES FUNDING, 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:
                                             --------------------------------

<PAGE>

                                      HIGHLAND CRUSADER OFFSHORE PARTNERS

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

<PAGE>

                                    EXHIBIT A
                              FORM OF REAFFIRMATION
                                OF LOAN DOCUMENTS

                            as of September __, 2001

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 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.,

<PAGE>

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 Ninth Amendment (the "Amendment") 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 Amendment and that, upon such effectiveness, all
references in such Document to the "Credit Agreement" shall be references to the
Credit Agreement as amended by the Amendment, (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 AMENDMENT 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 AMENDMENT.

<PAGE>

        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:_____________________________

                                   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:_____________________________

<PAGE>

                                   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:_____________________________

<PAGE>

                                   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:_____________________________

ACKNOWLEDGED AND AGREED
as of the date first written above

BANK OF AMERICA, N.A., as Agent

By:________________________________
Title:_______________________________

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