Nfa A670 over Little Richland Creek
Rhea County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A670 over Little Richland Creek in Rhea 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 1977, making it 48 years old at the 2025 inventory.
- It carries about 2,310 vehicles a day (traffic count year 2020).
- Its listed owner is a city or municipal highway agency.
- It is one of 71 of the 100 inventoried bridges in Rhea County rated fair (71.0%); 6 (6.0%) 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 October 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 → (35.50324, -85.006)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 66 ft |
| Location | 0.8 Mi W of SR29 |
| NBI structure number | 720A1390001 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Rhea County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 29 over Richland Creek | 1960 | 23,414 | Fair |
| Fap 29 over Richland Creek | 1960 | 23,414 | Fair |
| Fap 29 over Richland Creek Overflow | 2007 | 23,414 | Good |
| Fap 29 over Richland Creek Overflow | 2007 | 23,414 | Fair |
| Fap 29 over Branch | 1960 | 21,072 | Fair |
| Fap 29 over Oak Hill Rd | 2002 | 16,192 | Fair |
All bridges nearby: Rhea County, TN bridge conditions · every bridge in Rhea County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.