Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-293-08-14  04-0120J4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  94%          94%                             
04-ALA-80-1.6/3.5                    Federal Project:                                   
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 18            Payment period ending: 10-20-07                      
DIABLO CONTRACTORS INC                                                                  
7 CROW CANYON COURT STE 100                                                             
SAN RAMON CA 94583                                                                      
                                                                                        
                                                                                        
Escrow No.  02281                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      11,526,629.88      384,688.00                      
2.a. Extra Work                       2,031,922.17      150,000.00                      
  b. Adjustment Comp.                   122,659.67            0.00                      
3. Materials on Hand                     67,500.00            0.00                      
4. Earned Subject to Retention       13,748,711.72      534,688.00                      
5. Mobilization                       1,200,000.00            0.00                      
6. Total Work Completed   14,881,211.72                                                 
7. Deductions                                                                           
8. a.Contract Retentions               -687,435.59      -26,734.40                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           14,261,276.13      507,953.60                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow       687,430.00                                                  
12. Net Pymt. this Estimate                             507,953.60