Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          06-293-07-42  04-276004                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  85%          99%                             
04-SON-101-3.5/3.9                    Federal Project:                                  
                                     ACNH-Q101(58)                                      
                                                                                        
                                                                                        
Progress payment No. 25            Payment period ending: 10-20-06                      
DIABLO CONTRACTORS INC                                                                  
7 CROW CANYON COURT STE 100                                                             
SAN RAMON CA 94583                                                                      
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       6,845,922.79       -4,256.00                      
2.a. Extra Work                         997,808.25      232,170.65                      
  b. Adjustment Comp.                   377,205.17      250,000.00                      
3. Materials on Hand                     30,138.84      -15,000.00                      
4. Earned Subject to Retention        8,251,075.05      462,914.65                      
5. Mobilization                         880,000.00            0.00                      
6. Total Work Completed    9,100,936.21                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            9,131,075.05      462,914.65                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             462,914.65