Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-115-10-00  12-043214                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  18%           7%                             
12-ORA-74-13.3/16.6                    Federal Project:                                 
                                     ACST-P074(50)                                      
                             P-P074(50)                                                 
                                                                                        
Progress payment No. 03            Payment period ending: 04-20-07                      
BRENT ENGINEERING INC                                                                   
81 SHIELD                                                                               
IRVINE CA 92618                                                                         
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       3,139,128.65    2,238,415.30                      
2.a. Extra Work                          84,800.01      -11,613.70                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                  1,348,359.34      -13,562.96                      
4. Earned Subject to Retention        4,572,288.00    2,213,238.64                      
5. Mobilization                       2,700,000.00      900,000.00                      
6. Total Work Completed    5,923,928.66                                                 
7. Deductions                          -246,757.44      -82,252.48                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            7,025,530.56    3,030,986.16                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                           3,030,986.16