Nfa 1794 over Duncan Branch
Humphreys County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa 1794 over Duncan Branch in Humphreys 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 1984, making it 41 years old at the 2025 inventory.
- It carries about 61 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 169 of the 252 inventoried bridges in Humphreys County rated fair (67.1%); 9 (3.6%) 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 → (35.90955, -87.90437)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 33 ft |
| Location | 6 Mi W SR13 3 Mi N of I40 |
| NBI structure number | 43017940009 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Humphreys County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 over Branch | 1965 | 35,730 | Fair |
| I40 over Branch | 1965 | 35,730 | Fair |
| I40 over South Fork Blue Creek | 1965 | 35,649 | Fair |
| I40 over South Fork Blue Creek | 1965 | 35,649 | Fair |
| I40 over Branch | 1964 | 35,368 | Fair |
| I40 over Branch | 1964 | 35,368 | Fair |
All bridges nearby: Humphreys County, TN bridge conditions · every bridge in Humphreys County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.