Nfa A425 over Dillon Branch
McNairy County, Tennessee · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A425 over Dillon Branch in McNairy 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 30 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 121 of the 218 inventoried bridges in McNairy County rated fair (55.5%); 9 (4.1%) 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 → (35.13194, -88.37556)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 31 ft |
| Location | 0.2 Mi W of Hardin Co. |
| NBI structure number | 550A4250001 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in McNairy County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 15 over Cypress Creek | 1927 | 12,323 | Fair |
| Fap 5 over Roland Creek | 1997 | 11,398 | Fair |
| Fap 5 over Oxford Creek | 1997 | 11,398 | Fair |
| Fau 5 over Branch | 1968 | 11,398 | Good |
| Fap 5 over Muddy Creek | 2001 | 11,398 | Good |
| Fap 5 over Branch | 1990 | 11,014 | Good |
All bridges nearby: McNairy County, TN bridge conditions · every bridge in McNairy County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.