<PAGE>
 
                                                                   EXHIBIT 10.66

                                   CONTRACT
                                   --------


     THIS CONTRACT, made and entered into this 3rd day of June, 1997, between 
Clark County, a political subdivision of the State of Nevada, hereinafter 
referred to as the "OWNER" and Meadow Valley Contractors, Inc., (a Corporation 
organized and existing under the laws of the State of Nevada), hereinafter 
referred to as the "CONTRACTOR".

     WITNESSETH: That said CONTRACTOR having been awarded the Contract
     for the construction of the MOBILE HOME PARK SITE DEVELOPMENT AND
     COMMON FACILITIES in Las Vegas, Nevada.

in accordance with the Bid therefore and for and in consideration of the 
promises and of the covenants and agreements, and of the payments herein 
specified, to be made and performed by the CONTRACTOR and the OWNER, the 
CONTRACTOR hereby covenants and agrees to and with the OWNER to undertake and 
execute all of the said named Work, in a good, substantial and workmanlike
manner, and to furnish all the materials and all the tools and labor necessary
to properly perform and complete the Work ready for use, in strict accordance
with all the provisions of the Contract including the following Exhibits
attached hereto and made a part hereof:

          Invitation to Bid
          Bid 
          Contract
          Exhibit "B"-Special Conditions
          Exhibit "A"-General Conditions
          Exhibit "C"-Compensation Conditions
          Exhibit "D"-Addenda
          Exhibit "E"-Technical Specifications
          Exhibit "F"-List of Drawings
          Contract Drawings

                                                                Contract No.2062
Conformed Document                                                      Contract
June 03, 1997                                                       Page 1 of 11
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and accept as full compensation for the satisfactory performance of this 
Contract the sum of Seven Million Four Hundred Seventy Two Thousand One Hundred 
Twenty Nine Dollars and Eighteen Cents ($7,472,129.18).

     The prices named in the Bid are for the completed Work, and include the 
furnishing of all materials and all labor, tools, and appliances and all 
expense, direct or indirect, connected with the proper execution of the Work and
of maintaining the same until it is accepted by the OWNER. In the event that 
unit prices are included in the base bid amount, the sum stated above is an 
estimated total Contract amount. Full compensation will be based upon the amount
or number of each unit of work approved by the OWNER as satisfactorily completed
in accordance with the Contract, multiplied by the applicable unit price set 
forth in the Bid.

     The CONTRACTOR shall commence the Work to be performed under this Contract 
on the date set by the OWNER in the written Notice to Proceed, continuing the
Work with diligence and shall complete the entire Work in accordance with
ATTACHMENT NO. TWO TO BID, MILESTONE AND LIQUIDATED DAMAGES DATA. Further, in
the event interim milestone completion dates are established in the above
ATTACHMENT NO. TWO TO BID for separable portions of the Work, the CONTRACTOR
agrees to complete said separable portions of the Work in accordance with said
milestone dates.

     CONTRACTOR acknowledges that the time for completion of the Work is 
sufficient for it to perform all the Work. In case of failure on the part of the
CONTRACTOR, to complete the Work within the time(s) specified in the Contract, 
or within such additional time(s) as may be granted by formal action of the 
Board of County Commissioners or fails to prosecute the Work, or any separable 
part thereof, with such diligence as will insure its completion within the 
time(s) specified in the Contract or any extensions thereof, the CONTRACTOR 
shall pay to the OWNER, as liquidated damages, the sum(s) indicated in
ATTACHMENT NO. TWO TO BID if so established therein for milestone completion
dates of separable parts of the Work and final completion of the Work.

                                                               Contract No. 2062
Conformed Document                                                      Contract
June 03, 1997                                                       Page 2 of 11
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     The Award of this Contract is subject to the condition precedent that the 
CONTRACTOR provide a Performance Bond and a Labor and Material Payment Bond as 
required by the Contract Documents.

     IN WITNESS WHEREOF, the Board of County Commissioners of Clark County, 
Nevada, has authorized it's Director of Aviation to execute this Contract on 
behalf of the said OWNER, and the CONTRACTOR has hereunto set his hand and seal 
the day and year above written.

                                             CLARK COUNTY, NEVADA

                                                    
                                             By: /s/ Randall H. Walker
                                                --------------------------------
                                                  RANDALL H. WALKER
                                                  Director of Aviation

NOTE: Witnesses not required for corporation,
but Corporate Certificate must be complete.
Two witnesses required for Partnerships and
Individuals. Partnerships must complete
Partnership Certificate.



________________________________             MEADOW VALLEY CONTRACTORS, INC.
Witness



                                             BY: /s/ Alan Terril 
________________________________                --------------------------------
Witness                                             ALAN TERRIL
                                                    Vice President




                                                  [SEAL] 


                                                               Contract No. 2062
Conformed Document                                                      Contract
June 03, 1997                                                       Page 3 of 11