Dept. of Trans.       PROGRESS   Serial No.  Contract No.                               
                                          08-084-14-34  11-080004                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                  99%          96%                             
11-SD-8-R36.5/ .0                    Federal Project:                                   
                                     ACIM-008-1(300)                                    
                                                                                        
                                                                                        
Progress payment No. 23            Payment period ending: 03-20-08                      
TRUESDELL CORPORATION OF                                                                
CALIFORNIA INC                                                                          
3529 E WOOD STREET                                                                      
PHOENIX AZ 85040                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.       4,277,906.18            0.00                      
2.a. Extra Work                         847,563.81       12,646.06                      
  b. Adjustment Comp.                  -143,743.69            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention        4,981,726.30       12,646.06                      
5. Mobilization                         263,400.00            0.00                      
6. Total Work Completed    5,245,126.30                                                 
7. Deductions                           -24,125.00            0.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor            5,221,001.30       12,646.06                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              12,646.06