| 2024-012 | This project has been modified to add $480,000 in federal NHPP funds to the FY 2024 PE-N/PE-D/ROW/CONST phase and update the total project cost. | 1/18/2024 |
| 2026-003 | This modification adds $66,000,000 of State funds to FY 26 for future Advanced Construction funds to be converted. | 10/27/2025 |
| 2026-006 | Mod 753: TDOT is adding $9,899,600 to FY 2026 NHPP at 80/20 federal/state to fund projects in upcoming lettings. Total Project Cost is increased to $311,294,200. | 3/10/2026 |
| 2026-009 | TDOT is adding $5,000,000 to FY 2026 NHPP at 80/20 federal/state to fund projects in the upcoming letting. Total Project Cost is increased to $316,294,200. | 4/15/2026 |
| 2026-012 | Mod 802: TDOT is adding $2,000,000 FY 2026 at 80/20 federal/state to cover the cost of projects in the upcoming letting. Total project cost increases to $318,294,000. | 5/04/2026 |