Dept. of Trans.       FINAL   Serial No.  Contract No.                                  
                                          08-042-15-28  04-272124                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
04-CC-4-31.1/40.8                    Federal Project:                                   
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 12            Payment period ending: 09-04-07                      
DE SILVA GATES CONSTRUCTION                                                             
P O BOX 2909                                                                            
DUBLIN CA 94568                                                                         
                                                                                        
                                                                                        
Escrow No.  02282                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       5,501,551.31      237,625.50                      
2.a. Extra Work                         416,337.32       49,763.75                      
  b. Adjustment Comp.                   -11,011.37            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        5,906,877.26      287,389.25                      
5. Mobilization                         639,000.00            0.00                      
6. Total Work Completed    6,545,877.26                                                 
7. Deductions                            -2,632.50            0.00                      
8. a.Contract Retentions               -253,645.64            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.         253,645.64            0.00                      
9. Total pay to Contractor            6,543,244.76      287,389.25                      
10. Reduction Amt to Escrow            -160,000.00            0.00                      
11. Payment to Escrow       160,000.00                                                  
12. Net Pymt. this Estimate                             287,389.25