Marion County Bridge Report Card

Marion County scores 91 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A91 / 100

Local infrastructure snapshot

Marion County, Ohio

Marion County has 230 bridges in the National Bridge Inventory, with 9 rated poor and 0 rated scour-critical. Its poor-condition share of 3.9% is at or below the 4.7% statewide average. Poor-condition bridges carry about 5,605 daily vehicle crossings.

230Total Bridges

9Poor (3.9%)

82Fair (35.7%)

0Scour-Critical

Quote-Ready Local Facts

3.9%of county bridges are in poor condition, compared with 4.7% statewide and 6.7% nationally.

5,605daily vehicle crossings are on poor-condition bridges in the county.

0bridges are rated scour-critical, or 0.0% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Marion County a Bridge Condition Exposure Score of 91/100 (A). The county has 230 bridges in the National Bridge Inventory, including 9 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 5,605 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.

Download all county report-card scores as CSV.

How the Score Breaks Down

Factor	Weight	County Value	Penalty
Poor-condition bridge share	40	3.9%	7.8
Poor-condition traffic exposure	25	1.1% of measured traffic	0.8
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	50 years vs 48 nationally	0.8
Traffic-data completeness	5	531,723 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	3.9%
State Poor-Condition Share	4.7%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	50 years
Poor-Condition Traffic Exposure	5,605 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSR 231 over Over Us-23 — 1,476 vehicles/day Oldest Listed BridgeCounty Road 25 over Br Over Prairie Run — built in 1900 All County BridgesBrowse every bridge record in Marion County.

Top Bridges to Watch in Marion County

Bridge	Reason	Condition	Daily Traffic	Year Built
SR 231 over Over Us-23	Poor condition + traffic exposure	Poor	1,476	1968
SR 203 over Battle Run	Poor condition + traffic exposure	Poor	1,410	1984
SR 37 over Scioto River	Poor condition + traffic exposure	Poor	699	1950
SR 746 over Olentangy River	Poor condition + traffic exposure	Poor	605	1955
County Road 148 over Br Over Riffle Creek	Poor condition + traffic exposure	Poor	504	1965
Township Road 160 over Mc Kibben Ditch	Poor condition + traffic exposure	Poor	324	1965
County Road 026y over Br Over Flat Run	Poor condition + traffic exposure	Poor	319	1981
CR 26 over Over Usr 23-1692	Poor condition + traffic exposure	Poor	210	1967
County Road 114i over Br Over Flat Run West	Poor condition + traffic exposure	Poor	58	1955
SR 95 over Graves Creek	High traffic	Fair	23,882	1965

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.