Dept. of Trans.       SEMI-FINAL   Serial No.  Contract No.                             
                                          06-320-18-00  03-2E2104                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
03-ED-49-21.5/ .0                    Federal Project:                                   
                                     ACST-43A3(4)                                       
                             P-43A3(4)                                                  
                                                                                        
Progress payment No. 04            Payment period ending: 08-21-06                      
YUBACON INC                                                                             
P O BOX 3176                                                                            
DIAMOND SPRINGS CA 95619                                                                
                                                                                        
                                                                                        
Escrow No.  00000                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.         354,016.04            0.00                      
2.a. Extra Work                          15,897.98            0.00                      
  b. Adjustment Comp.                      -183.89            0.00                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention          369,730.13            0.00                      
5. Mobilization                                                                         
6. Total Work Completed      369,730.13                                                 
7. Deductions                            -2,000.00       10,000.00                      
8. a.Contract Retentions                                                                
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.                                                         
9. Total pay to Contractor              367,730.13       10,000.00                      
10. Reduction Amt to Escrow                                                             
11. Payment to Escrow             0.00                                                  
12. Net Pymt. this Estimate                              10,000.00