Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          11-059-10-00  04-1123U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  74%          78%                             
04-SM-1-38.0/38.6                    Federal Project:                                   
04-SM-1-39.6/40.4                                     ACST-1187(11)                     
                             P-1187(11)                                                 
                             ER-1187(11)                                                
Progress payment No. 52            Payment period ending: 02-20-11                      
KIEWIT INFRASTRUCTURE WEST CO                                                           
3555 FARNAM STREET, STE E200                                                            
OMAHA, NE 68131                                                                         
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.     176,776,396.86    4,283,041.78                      
2.a. Extra Work                      10,707,914.21      691,925.86                      
  b. Adjustment Comp.                10,613,246.63       26,822.87                      
3. Materials on Hand                  2,460,920.50            0.00                      
4. Earned Subject to Retention      200,558,478.20    5,001,790.51                      
5. Mobilization                      27,236,600.00            0.00                      
6. Total Work Completed  225,334,157.70                                                 
7. Deductions                        -6,317,644.00     -175,536.75                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor          221,477,434.20    4,826,253.76                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                           4,826,253.76