Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-234-13-23  06-0C4104                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  19%          21%                             
06-FRE-99-11.8/24.4                    Federal Project:                                 
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 01            Payment period ending: 08-20-07                      
PENHALL COMPANY                                                                         
13750 CATALINA ST                                                                       
SAN LEANDRO CA 94577                                                                    
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.          39,145.60       39,145.60                      
2.a. Extra Work                                                                         
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention           39,145.60       39,145.60                      
5. Mobilization                          11,250.00       11,250.00                      
6. Total Work Completed       50,395.60                                                 
7. Deductions                                                                           
8. a.Contract Retentions                 -3,914.56       -3,914.56                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor               46,481.04       46,481.04                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              46,481.04