Bridge conditions in Hardin County, Ohio
277 inventoried bridges · 15 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
15 of the 277 bridges the federal inventory lists in Hardin County are rated poor; the rest split 186 good and 76 fair.
- 15 of the 277 bridges in Hardin County, Ohio, are rated in poor condition (5.4%) in the 2025 National Bridge Inventory, as of .
- 186 bridges (67.1%) are rated good and 76 (27.4%) fair.
- The median Hardin County bridge was built in 1983.
- The busiest poor-rated bridge is Leighton Street over Scioto River (built 1993), carrying about 1,463 vehicles a day.
Good 67.1% · Fair 27.4% · Poor 5.4% of 277 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 |
|---|---|---|---|
| Leighton Street over Scioto River | 1993 | 1,463 | Poor |
| County Road 209 over Panther Creek | 1968 | 557 | Poor |
| County Road 167 over Blanchard River | 1932 | 477 | Poor |
| County Road 25 over Scioto River | 1922 | 477 | Poor |
| County Road 70 over Blanchard River | 1900 | 385 | Poor |
| Township Road 85 over Searson Ditch | 1940 | 324 | Poor |
| Township Road 22 over Dunlap Ditch | 1914 | 324 | Poor |
| Township Road 135 over Silver Creek | 1934 | 324 | Poor |
| Township Road 30 over Grass Run | 1976 | 324 | Poor |
| County Road 65 over Mcintire Ditch | 1957 | 265 | Poor |
| Township Road 55 over Grass Run | 1934 | 228 | Poor |
| County Road 190 over Taylor Creek | 1958 | 167 | Poor |
| County Road 75 over Lehr Ditch | 1938 | 129 | Poor |
| County Road 60 over Cessna Creek Lateral | 1971 | 118 | Poor |
| Township Road 55 over Grass Run | 1937 | 110 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 31 & 53 S Main over Scioto River # | 1968 | 9,687 | Good |
| Usr 68 over Taylor Creek | 1962 | 8,002 | Good |
| US68/SR67S.DETROIT over Scioto River # | 1983 | 7,361 | Good |
| SR 309 over Conrail Railroad | 1941 | 7,134 | Good |
| Usr 68 over Cessna Creek | 1988 | 5,889 | Fair |
| SR 235 over Hog Creek | 1989 | 4,748 | Good |
| SR 31 over Panther Creek | 1941 | 4,611 | Good |
| SR 31 over Wolf Creek | 1967 | 4,514 | Fair |
| SR 31 over Gander Run | 2000 | 4,514 | Good |
| SR 117 & 235 Main over Scioto River | 1988 | 4,448 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Ohio: Ohio 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.