I40 over French Broad River
Jefferson County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I40 over French Broad River in Jefferson County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1960 and reconstructed in 1983, making it 65 years old at the 2025 inventory.
- It carries about 30,955 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 90 of the 123 inventoried bridges in Jefferson County rated fair (73.2%); 15 (12.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (36.043, -83.33932)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel deck truss |
| Length | about 2,416 ft |
| Location | In Jefferson County |
| NBI structure number | 45I00400019 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Jefferson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 over Nfa A118 Cook Mill Rd | 1973 | 77,977 | Good |
| I40 over Nfa A118 Cook Mill Rd | 1973 | 77,977 | Good |
| I40 over Exit Ramp over Dumplin C | 1973 | 77,977 | Fair |
| I40 over SR 9 | 1965 | 75,859 | Good |
| I40 over SR 9 | 1965 | 75,859 | Good |
| I40 over Dumplin Creek | 1973 | 75,859 | Fair |
All bridges nearby: Jefferson County, TN bridge conditions · every bridge in Jefferson County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.