Dept. of Trans.       SEMI-FINAL   Serial No.  Contract No.                             
                                          12-024-10-29  04-0T10U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
04-SOL-12-7.9/20.6                    Federal Project:                                  
                                     ACST-P012(100)                                     
                             P-P012(100)                                                
                                                                                        
Progress payment No. 31            Payment period ending: 07-01-11                      
R G W CONSTRUCTION INC                                                                  
P O BOX 2910                                                                            
LIVERMORE CA 94551                                                                      
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      18,155,701.22        3,880.85                      
2.a. Extra Work                         986,284.73       14,841.38                      
  b. Adjustment Comp.                 2,000,981.60      437,297.17                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention       21,142,967.55      456,019.40                      
5. Mobilization                       2,024,430.00            0.00                      
6. Total Work Completed   23,167,397.55                                                 
7. Deductions                            -1,200.00            0.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           23,166,197.55      456,019.40                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             456,019.40