Nfa 1791 (sa 4204) over Ross Branch
Houston County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa 1791 (sa 4204) over Ross Branch in Houston County, Tennessee, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1958, making it 67 years old at the 2025 inventory.
- It carries about 39 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 60 of the 118 inventoried bridges in Houston County rated fair (50.8%); 4 (3.4%) 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 → (36.28445, -87.70232)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 21 ft |
| Location | 2.5 M S of Erin |
| NBI structure number | 42017830007 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Houston County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 149 over Wells Creek | 1980 | 6,407 | Good |
| Fap 149 over Wells Creek | 1992 | 6,407 | Fair |
| Fap 149 over Wells Creek | 1992 | 6,407 | Fair |
| Fap 149 over Spring Branch | 1992 | 6,407 | Good |
| Fap 149 over Cave Branch | 1992 | 6,407 | Fair |
| Fap 149 over Lickskillet Branch | 1992 | 6,407 | Good |
All bridges nearby: Houston County, TN bridge conditions · every bridge in Houston County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.