Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-142-10-28  03-3555U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  63%          61%                             
03-ED-50-16.7/18.1                    Federal Project:                                  
                                     ACST-P050(110)                                     
                             PE-P050(110)                                               
                             BRLS-6203(14)                                              
Progress payment No. 26            Payment period ending: 05-20-08                      
MITCHELL ENGINEERING                                                                    
P O BOX 34367                                                                           
SAN FRANCISCO CA 94134                                                                  
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      18,091,785.18      387,889.56                      
2.a. Extra Work                         553,452.27       14,362.18                      
  b. Adjustment Comp.                   263,062.85     -104,873.71                      
3. Materials on Hand                    461,756.28       13,131.65                      
4. Earned Subject to Retention       19,370,056.58      310,509.68                      
5. Mobilization                       3,500,000.00            0.00                      
6. Total Work Completed   22,408,300.30                                                 
7. Deductions                          -102,189.39       -4,786.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor           22,767,867.19      305,723.68                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                             305,723.68