Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-355-11-03  04-130524                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  99%         100%                             
04-ALA-5746                    Federal Project:                                         
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 21            Payment period ending: 12-20-07                      
MITCHELL ENGINEERING                                                                    
P O BOX 34367                                                                           
SAN FRANCISCO CA 94134                                                                  
                                                                                        
                                                                                        
Escrow No.  02262                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       8,501,428.54       11,589.00                      
2.a. Extra Work                         255,498.34       38,049.51                      
  b. Adjustment Comp.                    60,032.21       -9,438.21                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        8,816,959.09       40,200.30                      
5. Mobilization                                                                         
6. Total Work Completed    8,816,959.09                                                 
7. Deductions                           -67,000.00            0.00                      
8. a.Contract Retentions               -440,847.95       -2,010.01                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            8,309,111.14       38,190.29                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow       440,840.00                                                  
12. Net Pymt. this Estimate                              38,190.29