Dept. of Trans.       SEMI-FINAL   Serial No.  Contract No.                             
                                          06-236-08-11  04-0T16U4                       
                PROGRESS PAYMENT VOUCHER  %complete:   %time:                           
Location:                                 100%         100%                             
04-SOL-80-13.0/16.0                    Federal Project:                                 
                                     ACIM-080-2(342)                                    
                                                                                        
                                                                                        
Progress payment No. 23            Payment period ending: 06-10-05                      
O C JONES AND SONS INC                                                                  
1520 FOURTH STREET                                                                      
BERKELEY CA 94710                                                                       
                                                                                        
                                                                                        
Escrow No.  02163                                                                       
                                    Total Estimate   This Estimate                      
1. Contract Itms Without Mobil.      11,149,116.91            0.00                      
2.a. Extra Work                       1,004,024.65          773.30                      
  b. Adjustment Comp.                   532,291.75       70,625.96                      
3. Materials on Hand                                                                    
4. Earned Subject to Retention       12,685,433.31       71,399.26                      
5. Mobilization                       1,190,000.00            0.00                      
6. Total Work Completed   13,875,433.31                                                 
7. Deductions                                                                           
8. a.Contract Retentions               -620,490.23            0.00                      
   b. Unsatisfactory Prog.                                                              
   c. Reduction after 95% Comp.         620,490.23            0.00                      
9. Total pay to Contractor           13,875,433.31       71,399.26                      
10. Reduction Amt to Escrow            -620,490.00            0.00                      
11. Payment to Escrow       620,490.00                                                  
12. Net Pymt. this Estimate                              71,399.26