Dept. of Trans.       AFTER ACCEPTANCE   Serial No.  Contract No.                       
                                          12-258-10-36  03-0F0004                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
03-NEV-20-R6.6/ .0                    Federal Project:                                  
                                     STP-P020(156)                                      
                                                                                        
                                                                                        
Progress payment No. 04            Payment period ending: 09-06-12                      
KNIFE RIVER COMPANY                                                                     
1764 SKYWAY                                                                             
CHICO CA 95928                                                                          
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         912,724.70       10,687.55                      
2.a. Extra Work                          49,283.95       49,283.95                      
  b. Adjustment Comp.                    -2,180.53       -2,180.53                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          959,828.12       57,790.97                      
5. Mobilization                                                                         
6. Total Work Completed      959,828.12                                                 
7. Deductions                           -25,000.00      -25,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              934,828.12       32,790.97                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              32,790.97