Mahoning County Bridge Report Card
Mahoning County scores 83 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Mahoning County, Ohio
Mahoning County has 348 bridges in the National Bridge Inventory, with 19 rated poor and 0 rated scour-critical. Its poor-condition share of 5.5% is above the 4.7% statewide average. Poor-condition bridges carry about 75,349 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Mahoning County a Bridge Condition Exposure Score of 83/100 (B). The county has 348 bridges in the National Bridge Inventory, including 19 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 75,349 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 | 5.5% | 10.9 |
| Poor-condition traffic exposure | 25 | 2.5% of measured traffic | 1.9 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 59 years vs 48 nationally | 4.4 |
| Traffic-data completeness | 5 | 3,044,293 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 | 5.5% |
| State Poor-Condition Share | 4.7% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 59 years |
| Poor-Condition Traffic Exposure | 75,349 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Mahoning County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Western Reserve over Yellow Creek | Poor condition + traffic exposure | Poor | 16,431 | 1939 |
| I76 Oh Tpk WB over Evans Lake & Yellow CR | Poor condition + traffic exposure | Poor | 9,200 | 1954 |
| South AVE (cr151) over Youngstown & Southern Rr | Poor condition + traffic exposure | Poor | 9,100 | 1957 |
| I76 Oh Tpk EB over Mill Creek | Poor condition + traffic exposure | Poor | 8,300 | 1954 |
| I76 Oh Tpk WB over Mill Creek | Poor condition + traffic exposure | Poor | 8,200 | 1954 |
| Four Mile Run Rd. over Four Mile Run | Poor condition + traffic exposure | Poor | 6,047 | 1931 |
| North Lima Rd. over Yellow Creek | Poor condition + traffic exposure | Poor | 4,223 | 1940 |
| Parker Street over Sugar Creek | Poor condition + traffic exposure | Poor | 2,500 | 1928 |
| Walker Mill Rd. over Yellow Creek | Poor condition + traffic exposure | Poor | 2,227 | 1925 |
| Bedell Rd. over Mill Creek | Poor condition + traffic exposure | Poor | 1,880 | 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.