Hardin County Bridge Report Card
Hardin County scores 87 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Hardin County, Ohio
Hardin County has 277 bridges in the National Bridge Inventory, with 15 rated poor and 0 rated scour-critical. Its poor-condition share of 5.4% is above the 4.7% statewide average. Poor-condition bridges carry about 5,672 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Hardin County a Bridge Condition Exposure Score of 87/100 (B). The county has 277 bridges in the National Bridge Inventory, including 15 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 5,672 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 5.4% | 10.8 |
| Poor-condition traffic exposure | 25 | 3.3% of measured traffic | 2.5 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 45 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 169,962 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 5.4% |
| State Poor-Condition Share | 4.7% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 45 years |
| Poor-Condition Traffic Exposure | 5,672 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Hardin County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Leighton Street over Scioto River | Poor condition + traffic exposure | Poor | 1,463 | 1993 |
| County Road 209 over Panther Creek | Poor condition + traffic exposure | Poor | 557 | 1968 |
| County Road 25 over Scioto River | Poor condition + traffic exposure | Poor | 477 | 1922 |
| County Road 167 over Blanchard River | Poor condition + traffic exposure | Poor | 477 | 1932 |
| County Road 70 over Blanchard River | Poor condition + traffic exposure | Poor | 385 | 1900 |
| Township Road 22 over Dunlap Ditch | Poor condition + traffic exposure | Poor | 324 | 1914 |
| Township Road 135 over Silver Creek | Poor condition + traffic exposure | Poor | 324 | 1934 |
| Township Road 85 over Searson Ditch | Poor condition + traffic exposure | Poor | 324 | 1940 |
| Township Road 30 over Grass Run | Poor condition + traffic exposure | Poor | 324 | 1976 |
| County Road 65 over Mcintire Ditch | Poor condition + traffic exposure | Poor | 265 | 1957 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.