Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          13-225-11-59  04-4H6204                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  88%         100%                             
04-SM-1-16.8/17.1                    Federal Project:                                   
                                     NONE                                               
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 08-20-13                      
REDWOOD ENGINEERING                                                                     
CONSTRUCTION, INC.                                                                      
2336 EL CAMINO REAL                                                                     
REDWOOD CITY, CA 94063                                                                  
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.           6,675.00        6,675.00                      
2.a. Extra Work                         812,285.73      113,312.37                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          818,960.73      119,987.37                      
5. Mobilization                                                                         
6. Total Work Completed      818,960.73                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              818,960.73      119,987.37                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             119,987.37