Dept. of Trans.             PROGRESS              Serial No.    Contract No.
                                                  23-233-10-49  12-0K0224
                    PROGRESS PAYMENT VOUCHER      %complete:    %time:
                                                    88%           66%

Location:                                         Federal Project:
12-ORA-5-14.5/17.1                                TPLN-6212(22)

Progress payment No. 051                     Payment period ending: 08-20-23
FLATIRON WEST, INC.
12121 SCRIPPS SUMMIT DRIVE #4
SAN DIEGO CA 92131

Escrow No. 00000
                                           Total Estimate      This Estimate
 1. Contract Itms Without Mobil.            99,186,664.70       2,091,710.05
 2. a. Extra Work                           13,120,634.89         292,453.93
    b. Adustment Comp.                       1,927,565.42               0.00
 3. Materials on Hand                          590,456.41        -101,239.60
 4. Earned Subject to Retention            114,825,321.42       2,282,924.38
 5. Mobilization                            12,900,000.00               0.00
 6. Total Work Completed    127,134,865.01
 7. Deductions                                -105,000.00          -8,000.00
 8. a. Contract Retentions
    b. Unsatisfactory Retentions
    c. Reduction after 95% Comp.
 9. Total pay to Contractor                127,620,321.42       2,274,924.38
10. Reduction Amt to Escrow
11. Payment to Escrow                 0.00
12. Net Pymt. this Estimate                                     2,274,924.38