Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-053-14-29  04-130524                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  52%          80%                             
04-ALA-5746                    Federal Project:                                         
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 10            Payment period ending: 02-20-07                      
MITCHELL ENGINEERING                                                                    
P O BOX 34367                                                                           
SAN FRANCISCO CA 94134                                                                  
                                                                                        
                                                                                        
Escrow No.  02262                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       4,521,193.18      384,956.00                      
2.a. Extra Work                          25,155.61       10,022.60                      
  b. Adjustment Comp.                    16,406.19          -45.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        4,562,754.98      394,933.60                      
5. Mobilization                                                                         
6. Total Work Completed    4,562,754.98                                                 
7. Deductions                           -67,000.00            0.00                      
8. a.Contract Retentions               -228,137.75      -19,746.68                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            4,267,617.23      375,186.92                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow       228,130.00                                                  
12. Net Pymt. this Estimate                             375,186.92