Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-360-15-41  08-456614                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  53%          37%                             
08-RIV-91-R0.6/R1.2                    Federal Project:                                 
                                     HP21-6054(49)                                      
                             LN-6054(49)                                                
                                                                                        
Progress payment No. 10            Payment period ending: 12-20-07                      
SEMA CONSTRUCTION INC                                                                   
6 ORCHARD STE 150                                                                       
LAKE FOREST CA 92630                                                                    
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       6,637,969.14      671,377.01                      
2.a. Extra Work                          49,058.07       14,569.59                      
  b. Adjustment Comp.                   -12,263.42       -6,826.25                      
3. Materials on Hand                     85,039.72      -11,904.29                      
4. Earned Subject to Retention        6,759,803.51      667,216.06                      
5. Mobilization                         560,125.00       28,006.25                      
6. Total Work Completed    7,234,888.79                                                 
7. Deductions                            -5,000.00       -5,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            7,314,928.51      690,222.31                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             690,222.31