Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          00-231-11-28  04-438614                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  71%          57%                             
04-SCL-237-8.0/9.6                    Federal Project:                                  
04-SCL-880-7.8/10.1                                     NHI-880-1(41)                   
                             AC-880-1(41)                                               
                             ACST-S237(7)                                               
Progress payment No. 24            Payment period ending: 08-20-00                      
DE SILVA GATES CONSTRUCTION                                                             
P O BOX 2909                                                                            
DUBLIN CA 94568                                                                         
                                                                                        
                                                                                        
Escrow No.  01171                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      24,231,029.25      858,704.71                      
2.a. Extra Work                       1,272,348.70       45,175.84                      
  b. Adjustment Comp.                   233,119.29            0.00                      
3. Materials on Hand                    502,040.46      -68,559.62                      
4. Earned Subject to Retention       26,238,537.70      835,320.93                      
5. Mobilization                       3,874,000.00            0.00                      
6. Total Work Completed   29,610,497.24                                                 
7. Deductions                            -2,600.00            0.00                      
8. a.Contract Retentions             -1,311,926.89      -41,766.05                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           28,798,010.81      793,554.88                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow     1,284,000.00                                                  
12. Net Pymt. this Estimate                             793,554.88