Nfa A178 over East Rock Creek
Marshall County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nfa A178 over East Rock Creek in Marshall County, Tennessee, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2006, making it 19 years old at the 2025 inventory.
- It carries about 40 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 134 of the 240 inventoried bridges in Marshall County rated good (55.8%); 0 (0.0%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (35.39741, -86.64083)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 38 ft |
| Location | 3.9 Mi SE Jct SR50&SR271 |
| NBI structure number | 590A1780001 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Marshall County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I65 over SR373 & E. Fk. Globe CR. | 1964 | 32,079 | Fair |
| I65 over I65 Ll / SR 373 & Creek | 1964 | 32,079 | Fair |
| I65 over I65 NB Ramp / Branch | 1964 | 32,079 | Good |
| I65 over I65 SB Ramp / Branch | 1964 | 32,079 | Good |
| I65 over Richland Creek | 1964 | 30,471 | Good |
| I65 over Richland Creek | 1964 | 30,471 | Good |
All bridges nearby: Marshall County, TN bridge conditions · every bridge in Marshall County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.