Nfa A510 over Nelson Creek
Lauderdale County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A510 over Nelson Creek in Lauderdale County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1975, making it 50 years old at the 2025 inventory.
- It carries about 260 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 150 of the 258 inventoried bridges in Lauderdale County rated fair (58.1%); 16 (6.2%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated December 2023, 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 → (35.77106, -89.51311)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 41 ft |
| Location | Near SR209 Jct. |
| NBI structure number | 490A0830005 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Lauderdale County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 3 over Cane Creek | 1970 | 18,593 | Fair |
| Fap 3 over Fau 1258 (lake Dr) | 1971 | 15,053 | Fair |
| Fap 3 over SR 19 | 1971 | 15,053 | Fair |
| Fap 3 over North Fork Cane Creek | 1963 | 13,622 | Fair |
| Fap 3 over North Fork Cane Creek | 1963 | 13,622 | Fair |
| Fap 3 over Mill Creek | 1960 | 11,840 | Fair |
All bridges nearby: Lauderdale County, TN bridge conditions · every bridge in Lauderdale County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.