Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          13-201-11-25  04-3E6904                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  58%         100%                             
04-CC-4-0.1/100.0                    Federal Project:                                   
04-SC-12-0.1/0.1                                     NONE                               
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 07-20-13                      
COLUMBIA ELECTRIC, INC.                                                                 
1980 DAVIS STREET                                                                       
SAN LEANDRO, CA 94577                                                                   
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.                                                         
2.a. Extra Work                         498,533.88      219,552.86                      
  b. Adjustment Comp.                                                                   
3. Materials on Hand                                                                    
4. Earned Subject to Retention          498,533.88      219,552.86                      
5. Mobilization                                                                         
6. Total Work Completed      498,533.88                                                 
7. Deductions                                                                           
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.              -42,911.44      -21,955.29                      
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              455,622.44      197,597.57                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             197,597.57