I75 Nbl over Nfa A455
McMinn County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I75 Nbl over Nfa A455 in McMinn County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1972, making it 53 years old at the 2025 inventory.
- It carries about 42,449 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 133 of the 219 inventoried bridges in McMinn County rated fair (60.7%); 6 (2.7%) are rated poor.
- 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 → (35.415, -84.69666)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 121 ft |
| Location | 9.4 Mi. From Bradley Co. |
| NBI structure number | 54I00750013 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in McMinn County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I75 Nbl over Mouse Creek | 1971 | 47,306 | Good |
| I75 Sbl over Mouse Creek | 1971 | 47,306 | Fair |
| I75 Nbl over Nfa A486 | 1971 | 47,306 | Fair |
| I75 Sbl over Nfa A486 | 1971 | 47,306 | Fair |
| I75 Nbl over Nfa 2334 | 1971 | 47,306 | Fair |
| I75 over Nfa 2334 | 1971 | 47,306 | Fair |
All bridges nearby: McMinn County, TN bridge conditions · every bridge in McMinn County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.