Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-234-13-37  04-470804                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  57%          29%                             
04-ALA-580-0.0/2.7                    Federal Project:                                  
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 13            Payment period ending: 08-20-07                      
DE SILVA GATES M C M A JOINT                                                            
VENTURE OF DE SILVA GATES                                                               
CONSTRUCTION AND M C M                                                                  
CONSTRUCTION                                                                            
P O BOX 2909                                                                            
DUBLIN CA 94568Escrow No.  02302                                                        
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       8,746,809.92    1,191,218.54                      
2.a. Extra Work                       1,352,500.33       88,004.51                      
  b. Adjustment Comp.                   -21,576.00      -18,576.00                      
3. Materials on Hand                    267,970.42     -149,899.71                      
4. Earned Subject to Retention       10,345,704.67    1,110,747.34                      
5. Mobilization                       1,880,000.00       94,000.00                      
6. Total Work Completed   11,957,734.25                                                 
7. Deductions                           -10,967.64            0.00                      
8. a.Contract Retentions               -517,285.23      -55,537.36                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           11,697,451.80    1,149,209.98                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow       517,280.00                                                  
12. Net Pymt. this Estimate                           1,149,209.98