Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-298-13-17  08-456614                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  85%          76%                             
08-RIV-91-R0.6/R1.2                    Federal Project:                                 
                                     HP21-6054(49)                                      
                             LN-6054(49)                                                
                                                                                        
Progress payment No. 20            Payment period ending: 10-20-08                      
SEMA CONSTRUCTION INC                                                                   
6 ORCHARD STE 150                                                                       
LAKE FOREST CA 92630                                                                    
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      10,922,148.13      305,570.50                      
2.a. Extra Work                         162,128.89        2,603.56                      
  b. Adjustment Comp.                    74,755.61       69,145.78                      
3. Materials on Hand                     29,917.56      -60,145.78                      
4. Earned Subject to Retention       11,188,950.19      317,174.06                      
5. Mobilization                         560,125.00            0.00                      
6. Total Work Completed   11,719,157.63                                                 
7. Deductions                           -15,000.00            0.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           11,734,075.19      317,174.06                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             317,174.06