Bridge conditions in Marion County, Tennessee
177 inventoried bridges · 6 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 177 bridges in Marion County: 83 rated good, 88 fair, and 6 poor.
- 6 of the 177 bridges in Marion County, Tennessee, are rated in poor condition (3.4%) in the 2025 National Bridge Inventory, as of .
- 83 bridges (46.9%) are rated good and 88 (49.7%) fair.
- The median Marion County bridge was built in 1968.
- The busiest poor-rated bridge is I24 over Sequatchie River (built 1965), carrying about 52,102 vehicles a day.
Good 46.9% · Fair 49.7% · Poor 3.4% of 177 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I24 over Sequatchie River | 1965 | 52,102 | Poor |
| I24 over Sequatchie River | 1965 | 52,102 | Poor |
| Fap 15 over SR-15 / I-24 | 1959 | 5,811 | Poor |
| Fap 15 over SR-15 / I-24 | 1959 | 5,811 | Poor |
| Nfa A444 over Poplar Springs Branch | 1940 | 1,690 | Poor |
| Nfa 2153 (sa 5801) over Dry Creek | 1979 | 93 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I24 EB over Running Water Creek | 1965 | 54,610 | Good |
| I24 WB over Running Water Creek | 1965 | 54,610 | Good |
| I24 over Moroney Gulf Branch | 1965 | 54,610 | Fair |
| I24 over Running Water Creek | 1965 | 54,610 | Fair |
| I24 over Running Water Creek | 1965 | 54,610 | Good |
| I24 over Murphy Hollow Creek | 1965 | 54,610 | Fair |
| I24 over Branch | 1965 | 54,610 | Fair |
| I24 349606L over A386 & Sequatchie Val RR | 1965 | 54,044 | Fair |
| I24 349606L over A386 & Sequatchie Val RR | 1965 | 54,044 | Fair |
| I24 over Tennessee River | 1965 | 53,902 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Tennessee: Tennessee bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.