Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-270-09-46  04-264204                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  23%          28%                             
04-SM-101-13.5/17.9                    Federal Project:                                 
                                     HPLU-6204(60)                                      
                             L-6204(60)                                                 
                                                                                        
Progress payment No. 06            Payment period ending: 09-20-07                      
DE SILVA GATES BROSMER A JOINT                                                          
VENTURE OF DE SILVA GATES                                                               
P O BOX 2909                                                                            
DUBLIN CA 94568                                                                         
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      18,415,136.45    6,357,794.46                      
2.a. Extra Work                         133,267.11       62,951.05                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                    867,435.53   -1,233,227.48                      
4. Earned Subject to Retention       19,415,839.09    5,187,518.03                      
5. Mobilization                       9,000,000.00            0.00                      
6. Total Work Completed   27,548,403.56                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           28,415,839.09    5,187,518.03                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                           5,187,518.03