Dept. of Trans.             PROGRESS              Serial No.    Contract No.
                                                  25-231-10-49  04-1Q2004
                    PROGRESS PAYMENT VOUCHER      %complete:    %time:
                                                    13%            4%

Location:                                         Federal Project:
04-VAR                                            HSST-X081(37)

Progress payment No. 001                     Payment period ending: 08-20-25
COLUMBIA ELECTRIC INC
1980 DAVIS ST
SAN LEANDRO CA 94577

Escrow No. 00000
                                           Total Estimate      This Estimate
 1. Contract Itms Without Mobil.               271,700.30         271,700.30
 2. a. Extra Work
    b. Adustment Comp.
 3. Materials on Hand                        1,259,940.00       1,259,940.00
 4. Earned Subject to Retention              1,531,640.30       1,531,640.30
 5. Mobilization                               638,461.75         638,461.75
 6. Total Work Completed        910,162.05
 7. Deductions
 8. a. Contract Retentions
    b. Unsatisfactory Retentions
    c. Reduction after 95% Comp.
 9. Total pay to Contractor                  2,170,102.05       2,170,102.05
10. Reduction Amt to Escrow
11. Payment to Escrow                 0.00
12. Net Pymt. this Estimate                                     2,170,102.05