Nfa 5566 (sa 3911) over M. Fk. Forked Deer River
Henderson County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa 5566 (sa 3911) over M. Fk. Forked Deer River in Henderson 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 1973, making it 52 years old at the 2025 inventory.
- It carries about 560 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 132 of the 207 inventoried bridges in Henderson County rated fair (63.8%); 12 (5.8%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 6 to 7.
- Its most recent inspection on record is dated June 2024, on a 24-month routine inspection cycle.
- 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 → (35.70517, -88.51556)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 28 ft |
| Location | 1.2 Mi N of SR20 |
| NBI structure number | 39S80390001 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Henderson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 over N. Fork Big Beaver Creek | 1965 | 32,747 | Fair |
| I40 over Little Beaver Creek | 1965 | 32,747 | Fair |
| I40 over Mid Fork Forked Deer Riv | 1961 | 32,725 | Fair |
| I40 over Mid Fork Forked Deer Riv | 1961 | 32,725 | Fair |
| I40 over Big Sandy River | 1965 | 31,441 | Fair |
| I40 over Big Sandy River | 1965 | 31,441 | Fair |
All bridges nearby: Henderson County, TN bridge conditions · every bridge in Henderson County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.