Dept. of Trans.             PROGRESS              Serial No.    Contract No.
                                                  23-139-09-56  12-0K0224
                    PROGRESS PAYMENT VOUCHER      %complete:    %time:
                                                    85%           61%

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

Progress payment No. 048                     Payment period ending: 05-20-23
FLATIRON WEST, INC.
12121 SCRIPPS SUMMIT DRIVE #4
SAN DIEGO CA 92131

Escrow No. 00000
                                           Total Estimate      This Estimate
 1. Contract Itms Without Mobil.            94,320,025.81       1,631,897.11
 2. a. Extra Work                           12,436,202.06       1,120,538.67
    b. Adustment Comp.                       1,927,565.42               0.00
 3. Materials on Hand                          820,927.19         -17,113.02
 4. Earned Subject to Retention            109,504,720.48       2,735,322.76
 5. Mobilization                            12,900,000.00               0.00
 6. Total Work Completed    121,583,793.29
 7. Deductions                                 -96,000.00               0.00
 8. a. Contract Retentions
    b. Unsatisfactory Retentions
    c. Reduction after 95% Comp.
 9. Total pay to Contractor                122,308,720.48       2,735,322.76
10. Reduction Amt to Escrow
11. Payment to Escrow                 0.00
12. Net Pymt. this Estimate                                     2,735,322.76