Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-143-10-08  12-1072U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  99%         100%                             
12-ORA-133-4.2/8.1                    Federal Project:                                  
                                     ACST-P133(10)                                      
                             P-P133(10)                                                 
                                                                                        
Progress payment No. 57            Payment period ending: 05-20-07                      
SEMA CONSTRUCTION INC                                                                   
6 ORCHARD, STE. 150                                                                     
LAKE FOREST CA 92630                                                                    
                                                                                        
                                                                                        
Escrow No.  02046                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      18,459,325.49        9,483.21                      
2.a. Extra Work                       3,428,825.76       51,284.33                      
  b. Adjustment Comp.                 1,943,746.06       89,567.37                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention       23,831,897.31      150,334.91                      
5. Mobilization                       1,340,411.19            0.00                      
6. Total Work Completed   25,172,308.50                                                 
7. Deductions                          -227,323.20      -35,974.98                      
8. a.Contract Retentions             -1,191,594.87       -7,516.75                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           23,753,390.43      106,843.18                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow     1,191,590.00                                                  
12. Net Pymt. this Estimate                             106,843.18