Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-028-09-35  12-043214                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  50%          32%                             
12-ORA-74-13.3/16.6                    Federal Project:                                 
                                     ACST-P074(50)                                      
                             P-P074(50)                                                 
                                                                                        
Progress payment No. 12            Payment period ending: 01-20-08                      
BRENT ENGINEERING INC                                                                   
81 SHIELD                                                                               
IRVINE CA 92618                                                                         
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      13,641,631.40    1,586,982.59                      
2.a. Extra Work                         657,667.72       50,896.82                      
  b. Adjustment Comp.                    37,906.03       22,443.85                      
3. Materials on Hand                    921,376.24       61,930.74                      
4. Earned Subject to Retention       15,258,581.39    1,722,254.00                      
5. Mobilization                       3,420,000.00            0.00                      
6. Total Work Completed   17,757,205.15                                                 
7. Deductions                          -322,559.43      -10,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           18,356,021.96    1,712,254.00                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                           1,712,254.00