Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-053-15-42  02-381604                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  71%          54%                             
02-LAS-395-30.7/56.7                    Federal Project:                                
                                     ACST-P395(215)                                     
                             PH-P395(215)                                               
                                                                                        
Progress payment No. 11            Payment period ending: 02-20-08                      
SIERRA NEVADA CONSTRUCTION                                                              
INC                                                                                     
P O BOX 50760                                                                           
SPARKS NV 89435                                                                         
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      18,785,491.61       35,479.44                      
2.a. Extra Work                         308,889.40            0.00                      
  b. Adjustment Comp.                   189,001.86            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention       19,283,382.87       35,479.44                      
5. Mobilization                       2,572,228.20            0.00                      
6. Total Work Completed   21,855,611.07                                                 
7. Deductions                            -2,000.00       44,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           21,853,611.07       79,479.44                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              79,479.44