Dept. of Trans.       FINAL   Serial No.  Contract No.                                  
                                          05-319-13-02  07-1Y6304                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
07-LA-14-68.0/72.0                    Federal Project:                                  
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 08-11-05                      
PENHALL COMPANY                                                                         
P O BOX 310                                                                             
ROGERS MN 553740310                                                                     
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         560,957.02       10,855.71                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                       857.55          857.55                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          561,814.57       11,713.26                      
5. Mobilization                          50,000.00            0.00                      
6. Total Work Completed      611,814.57                                                 
7. Deductions                                                                           
8. a.Contract Retentions                -27,244.89            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.          27,244.89            0.00                      
9. Total pay to Contractor              611,814.57       11,713.26                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              11,713.26