Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          06-235-08-22  10-3A4304                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  35%          33%                             
10-SJ-99-17.1/25.4                    Federal Project:                                  
                                     ACST-P099(492)                                     
                             PHG-P099(492)                                              
                                                                                        
Progress payment No. 05            Payment period ending: 08-20-06                      
DE SILVA GATES CONSTRUCTION                                                             
P O BOX 2909                                                                            
DUBLIN CA 94568                                                                         
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       1,755,978.92      463,543.00                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
3. Materials on Hand                     32,309.62      -42,594.81                      
4. Earned Subject to Retention        1,788,288.54      420,948.19                      
5. Mobilization                         655,500.00            0.00                      
6. Total Work Completed    2,411,478.92                                                 
7. Deductions                           -22,569.75       97,611.56                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            2,421,218.79      518,559.75                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             518,559.75