STOCKHOLDERS JOINDER AGREEMENT

          THIS AGREEMENT (this "Agreement") is made as of October 1, 1998,
by and among U.S. Aggregates, Inc. ("USAI"), James A. Harris (the
"Executive") and The James A. Harris Charitable Remainder Unitrust (the
"Trust").

          WHEREAS, the Executive, USAI and certain other stockholders of the
Company are parties to a Stockholders Agreement, dated as of  January 24,
1994, as amended (the "Stockholders Agreement"), and  an Amended and Restated
Registration Rights and Stockholders' Agreement, dated as June 5, 1998, as
amended (the "Prudential Stockholders Agreement").

          WHEREAS, the Executive and USAI are parties to a Senior Management
Agreement, dated as of January 24, 1994 (the "Management Agreement"),
pursuant to which Executive acquired shares of USAI's common stock, par value
$0.01 per share (the "Executive Stock"), and an Executive Stock Pledge
Agreement, dated as of May 10, 1994 (the "Pledge Agreement").

          WHEREAS, the Executive desires to transfer 1,656 shares of his
Executive Stock to the Trust.

          WHEREAS, the Executive and USAI desire to provide the Trust rights,
and the Trust desires to be subject to the duties, under the Stockholders
Agreement, the Prudential Stockholders Agreement, the Management Agreement
and the Pledge Agreement as set forth herein.

          NOW, THEREFORE, the parties hereto agree as follows:

          1.   ADDITION TO STOCKHOLDERS AGREEMENT.  The parties hereto agree
that, by and upon execution of this Agreement, the Trust shall be a party to
the Stockholders Agreement, shall be an "Executive" (as defined in the
Stockholders Agreement), a "Stockholder" (as defined in the Stockholders
Agreement) and a holder of "Executive Stock" (as defined in the Stockholders
Agreement) and shall be entitled to the rights and benefits and subject to
the duties and obligations of an Executive, a Stockholder, and a holder of
Executive Stock thereunder, as fully as if the Trust had been an original
signatory thereto in such capacity.

          2.   ADDITION TO PRUDENTIAL STOCKHOLDERS AGREEMENT.  The parties
hereto agree that, by and upon execution of this Agreement, the Trust shall
be a party to the Prudential Stockholders Agreement, shall be a member of
"Senior Management" (as defined in the  Prudential Stockholders Agreement)
and a holder of "Registrable Securities" (as defined in the Prudential
Stockholders Agreement) and shall be entitled to the rights and benefits and
subject to the duties and obligations of a member of Senior Management and a
holder of Registrable Securities thereunder, as fully as if the Trust had
been an original signatory thereto in such capacity.

          3.   ADDITION TO MANAGEMENT AGREEMENT.  The parties hereto agree
that, by and upon execution of this Agreement, the Trust shall be a party to
the Management Agreement, shall be an "Executive" (as defined in the
Management Agreement) and a holder of "Executive Stock" (as



defined in the  Management Agreement) and shall be entitled to the rights and
benefits and subject to the duties and obligations of an Executive and a
holder of Executive Stock thereunder, as fully as if the Trust had been an
original signatory thereto in such capacity.

          4.   ADDITION TO PLEDGE AGREEMENT.  The parties hereto agree that,
by and upon execution of this Agreement, the Trust shall be a party to the
Pledge Agreement, shall be a "Pledgor" (as defined in the Pledge Agreement)
and a holder of "Pledged Shares" (as defined in the  Pledge Agreement) and
shall be entitled to the rights and benefits and subject to the duties and
obligations of a Pledgor and a holder of Pledged Shares thereunder, as fully
as if the Trust had been an original signatory thereto in such capacity.

          5.   CONTINUING EFFECT.  This Agreement shall not constitute an
amendment or waiver of any provision of the Stockholders Agreement, the
Prudential Stockholders Agreement, the Management Agreement and the Pledge
Agreement, which shall continue and remain in full force and effect in
accordance with its terms.

          6.   COUNTERPARTS.  This Agreement may be executed in separate
counterparts each of which shall be an original and all of which taken
together shall constitute one and the same agreement.

          7.   GOVERNING LAW.  All questions concerning the construction,
validity and interpretation of this Agreement shall be governed by and
construed in accordance with the internal law, and not the law of conflicts,
of Delaware.

          8.   DESCRIPTIVE HEADINGS.  The descriptive headings of this
Agreement are inserted for convenience only and do not constitute a part of
this Agreement.

                                *  *  *  *  *  *  *  *



          IN WITNESS WHEREOF, this Agreement has been entered into as of the
date first written above.



                                       U. S. AGGREGATES, INC.


                                       By: /s/ Michael Stone
                                          ---------------------------
                                       Its:
                                          ---------------------------



                                       THE JAMES A. HARRIS CHARITABLE
                                         REMAINDER UNITRUST


                                       By: /s/ Brett Harris
                                          ---------------------------
                                       Its: Trustee


                                       By: /s/ David Harris
                                          ---------------------------
                                       Its: Trustee


                                       /s/ James A. Harris
                                       ------------------------------
                                       JAMES A. HARRIS