Dept. of Trans.           SUPPLEMENTAL            Serial No.    Contract No.
                                                  23-215-08-07  03-0H08U4
                    PROGRESS PAYMENT VOUCHER      %complete:    %time:
                                                    72%           69%

Location:                                         Federal Project:
03-SAC-50-L0.2/R6.1                               NONE

Progress payment No. 041                     Payment period ending: 08-03-23
FLATIRON WEST, INC.
1200 CONCORD AVENUE #465
CONCORD CA 94520

Escrow No. 00000
                                           Total Estimate      This Estimate
 1. Contract Itms Without Mobil.           280,651,102.50               0.00
 2. a. Extra Work                            2,182,258.60               0.00
    b. Adustment Comp.                        -539,956.08       1,879,065.61
 3. Materials on Hand                        3,704,970.31               0.00
 4. Earned Subject to Retention            285,998,375.33       1,879,065.61
 5. Mobilization
 6. Total Work Completed    282,293,405.02
 7. Deductions                                -608,513.28               0.00
 8. a. Contract Retentions
    b. Unsatisfactory Retentions
    c. Reduction after 95% Comp.
 9. Total pay to Contractor                285,389,862.05       1,879,065.61
10. Reduction Amt to Escrow
11. Payment to Escrow                 0.00
12. Net Pymt. this Estimate                                     1,879,065.61