Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-355-08-21  09-307904                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  73%          68%                             
09-MNO-5712                    Federal Project:                                         
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 06            Payment period ending: 12-20-07                      
DEN BOER ENGINEERING AND                                                                
CONSTRUCTION INC                                                                        
72-152 NORTHSHORE ST                                                                    
THOUSAND PALMS, CA  92276                                                               
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         823,847.00       28,522.00                      
2.a. Extra Work                           3,205.69        3,205.69                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          827,052.69       31,727.69                      
5. Mobilization                                                                         
6. Total Work Completed      827,052.69                                                 
7. Deductions                                                                           
8. a.Contract Retentions                -41,352.63       -1,586.38                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              785,700.06       30,141.31                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              30,141.31