Dept. of Trans.       AFTER ACCEPTANCE   Serial No.  Contract No.                       
                                          09-058-09-54  07-3Y2004                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
07-LA-118-R2.6/R12.5                    Federal Project:                                
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 06            Payment period ending: 12-12-08                      
PENHALL COMPANY                                                                         
P O BOX 310                                                                             
ROGERS MN 55374                                                                         
                                                                                        
                                                                                        
Escrow No.  02375                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       1,635,524.48        2,000.00                      
2.a. Extra Work                          16,136.71       16,136.71                      
  b. Adjustment Comp.                   -15,000.00      -15,000.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        1,636,661.19        3,136.71                      
5. Mobilization                          99,000.00            0.00                      
6. Total Work Completed    1,735,661.19                                                 
7. Deductions                                 0.00        2,000.00                      
8. a.Contract Retentions                -81,676.22            0.00                      
   b. Unsatisfactory Prog.                    0.00       70,593.98                      
   c. Reduction after 95% Comp.          81,676.22       81,676.22                      
9. Total pay to Contractor            1,735,661.19      157,406.91                      
10. Reduction Amt to Escrow             -81,670.00      -81,670.00                      
11. Payment to Escrow        81,670.00                                                  
12. Net Pymt. this Estimate                              75,736.91