Nfa A180 over Duck River
Coffee County, Tennessee · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A180 over Duck River in Coffee County, Tennessee, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1969, making it 56 years old at the 2025 inventory.
- It carries about 420 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 21 of the 217 inventoried bridges in Coffee County rated poor (9.7%); 21 (9.7%) 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 March 2024, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (35.5922, -86.0887)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 4 | 4 | Poor condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 58 ft |
| Location | 2.1 Mi From SR 53 |
| NBI structure number | 160A1800005 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Coffee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I24 Ebl over SR 64 | 1968 | 45,739 | Fair |
| I24 Wbl over SR 64 | 1968 | 45,739 | Fair |
| I24 Ebl over Garrison Fork Creek | 1968 | 44,829 | Fair |
| I24 Wbl over Garrison Fork Creek | 1968 | 44,829 | Fair |
| I24 Ebl over Mcbride Branch & Nfa A12 | 1968 | 44,829 | Fair |
| I24 Wbl over Mcbride Branch & Nfa A12 | 1968 | 44,829 | Fair |
All bridges nearby: Coffee County, TN bridge conditions · every bridge in Coffee County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.