Dept. of Trans.           SUPPLEMENTAL            Serial No.    Contract No.
                                                  23-096-07-15  03-3H3304
                    PROGRESS PAYMENT VOUCHER      %complete:    %time:
                                                    85%           84%

Location:                                         Federal Project:
03-SAC-50-2.5/3.2                                 NONE

Progress payment No. 015                     Payment period ending: 03-20-23
STUDEBAKER BROWN ELECTRIC INC
3237 RIPPEY RD #100
LOOMIS CA 95650

Escrow No. 00000
                                           Total Estimate      This Estimate
 1. Contract Itms Without Mobil.            21,302,523.04       1,146,875.00
 2. a. Extra Work                            1,253,592.53               0.00
    b. Adustment Comp.                          76,101.43               0.00
 3. Materials on Hand                        1,942,960.00               0.00
 4. Earned Subject to Retention             24,575,177.00       1,146,875.00
 5. Mobilization                               474,000.00               0.00
 6. Total Work Completed     23,106,217.00
 7. Deductions                                 -14,000.00               0.00
 8. a. Contract Retentions
    b. Unsatisfactory Retentions
    c. Reduction after 95% Comp.
 9. Total pay to Contractor                 25,035,177.00       1,146,875.00
10. Reduction Amt to Escrow
11. Payment to Escrow                 0.00
12. Net Pymt. this Estimate                                     1,146,875.00