Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          07-297-20-32  02-381604                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  60%          44%                             
02-LAS-395-30.7/56.7                    Federal Project:                                
                                     ACST-P395(215)                                     
                             PH-P395(215)                                               
                                                                                        
Progress payment No. 07            Payment period ending: 10-19-07                      
SIERRA NEVADA CONSTRUCTION                                                              
INC                                                                                     
P O BOX 50760                                                                           
SPARKS NV 89435                                                                         
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      15,680,041.63      469,100.40                      
2.a. Extra Work                         213,812.73      157,473.23                      
  b. Adjustment Comp.                  -173,027.27      122,592.73                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention       15,720,827.09      749,166.36                      
5. Mobilization                       2,572,228.20            0.00                      
6. Total Work Completed   18,293,055.29                                                 
7. Deductions                           -34,000.00      -10,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           18,259,055.29      739,166.36                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             739,166.36