Dept. of Trans.       95% REDUCTION   Serial No.  Contract No.                          
                                          07-144-12-24  08-446514                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 PEP        SAT                                
08-RIV-71-0.0/2.7                    Federal Project:                                   
                                     HP21-6208(7)                                       
                             L-6208(7)                                                  
                                                                                        
Progress payment No. 43            Payment period ending: 05-18-07                      
SEMA CONSTRUCTION INC                                                                   
6 ORCHARD, SUITE 150                                                                    
LAKE FOREST CA 92630                                                                    
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       8,009,520.38        2,265.00                      
2.a. Extra Work                         826,144.82            0.00                      
  b. Adjustment Comp.                   354,385.56            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        9,190,050.76        2,265.00                      
5. Mobilization                         758,947.63            0.00                      
6. Total Work Completed    9,948,998.39                                                 
7. Deductions                                                                           
8. a.Contract Retentions               -459,502.54         -113.25                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.         381,799.18        2,944.50                      
9. Total pay to Contractor            9,871,295.03        5,096.25                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                               5,096.25