Brown County Bridge Report Card
Brown County scores 90 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Brown County, Ohio
Brown County has 222 bridges in the National Bridge Inventory, with 7 rated poor and 0 rated scour-critical. Its poor-condition share of 3.2% is at or below the 4.7% statewide average. Poor-condition bridges carry about 11,630 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Brown County a Bridge Condition Exposure Score of 90/100 (A). The county has 222 bridges in the National Bridge Inventory, including 7 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 11,630 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 | 3.2% | 6.3 |
| Poor-condition traffic exposure | 25 | 4.0% of measured traffic | 3.0 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 51 years vs 48 nationally | 1.2 |
| Traffic-data completeness | 5 | 294,130 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 | 3.2% |
| State Poor-Condition Share | 4.7% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 51 years |
| Poor-Condition Traffic Exposure | 11,630 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Brown County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Bus.62 over Ohio River Csx Rr Local | Poor condition + traffic exposure | Poor | 6,478 | 1931 |
| SR 131 over Grassy Run | Poor condition + traffic exposure | Poor | 3,422 | 1946 |
| Stephenson Road over Stream | Poor condition + traffic exposure | Poor | 951 | 1930 |
| Ripley RD over Red Oak Creek | Poor condition + traffic exposure | Poor | 268 | 1948 |
| Vernon Road over Middle Branch Bullskin C | Poor condition + traffic exposure | Poor | 209 | 1925 |
| Anderson State RD over Murray Run | Poor condition + traffic exposure | Poor | 198 | 1955 |
| North Pole Rd. over Eagle Creek | Poor condition + traffic exposure | Poor | 104 | 1875 |
| Usr 68 over Sterling Run | High traffic | Good | 16,006 | 1979 |
| Usr 68 over Over SR 32 | High traffic | Fair | 14,066 | 1979 |
| SR 32 over Little Sterling Run | High traffic | Fair | 8,991 | 1980 |
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.