Dept. of Trans.       FINAL   Serial No.  Contract No.                                  
                                          06-261-09-47  08-0F8804                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
08-RIV-86-R11.4/R22.8                    Federal Project:                               
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 05            Payment period ending: 08-01-06                      
PENHALL COMPANY                                                                         
P O BOX 4609                                                                            
ANAHEIM CA 92803                                                                        
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         865,921.95            0.00                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          865,921.95            0.00                      
5. Mobilization                                                                         
6. Total Work Completed      865,921.95                                                 
7. Deductions                            -1,000.00            0.00                      
8. a.Contract Retentions                -27,715.13            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.          27,715.13            0.00                      
9. Total pay to Contractor              864,921.95            0.00                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                                   0.00