Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          13-114-14-43  08-448404                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  31%          43%                             
08-RIV-91-15.6/21.6                    Federal Project:                                 
                                     CMLN-6208(9)                                       
                                                                                        
                                                                                        
Progress payment No. 15            Payment period ending: 04-18-13                      
SEMA CONSTRUCTION INC                                                                   
320 GODDARD WAY, SUITE 150                                                              
IRVINE, CA 92618                                                                        
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      29,790,433.60    3,675,416.56                      
2.a. Extra Work                         614,060.91       58,209.64                      
  b. Adjustment Comp.                    74,191.20       42,813.33                      
3. Materials on Hand                  1,893,972.61      -43,153.29                      
4. Earned Subject to Retention       32,372,658.32    3,733,286.24                      
5. Mobilization                       3,911,150.00            0.00                      
6. Total Work Completed   34,389,835.71                                                 
7. Deductions                           -10,000.00      694,374.73                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           36,273,808.32    4,427,660.97                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                           4,427,660.97