Seneca County Bridge Report Card

Seneca County scores 96 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

A96 / 100

Local infrastructure snapshot

Seneca County, Ohio

Seneca County has 278 bridges in the National Bridge Inventory, with 4 rated poor and 0 rated scour-critical. Its poor-condition share of 1.4% is at or below the 4.7% statewide average. Poor-condition bridges carry about 2,687 daily vehicle crossings.

278Total Bridges

4Poor (1.4%)

69Fair (24.8%)

0Scour-Critical

Quote-Ready Local Facts

1.4%of county bridges are in poor condition, compared with 4.7% statewide and 6.7% nationally.

2,687daily 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 Seneca County a Bridge Condition Exposure Score of 96/100 (A). The county has 278 bridges in the National Bridge Inventory, including 4 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 2,687 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	1.4%	2.9
Poor-condition traffic exposure	25	1.0% of measured traffic	0.7
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	42 years vs 48 nationally	0.0
Traffic-data completeness	5	279,654 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	1.4%
State Poor-Condition Share	4.7%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	42 years
Poor-Condition Traffic Exposure	2,687 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeRiver Rd. over Willow Creek — 1,701 vehicles/day Oldest Listed BridgeCli Tr 165 over Spicer Creek — built in 1900 All County BridgesBrowse every bridge record in Seneca County.

Top Bridges to Watch in Seneca County

Bridge	Reason	Condition	Daily Traffic	Year Built
River Rd. over Willow Creek	Poor condition + traffic exposure	Poor	1,701	1914
Ple CR 62 over Green Creek Pl	Poor condition + traffic exposure	Poor	831	1978
Blo Tr 77 over Honey Creek	Poor condition + traffic exposure	Poor	155	1943
Ple Tr 143 over Sandusky River "closed"	Poor condition	Poor	0	1914
Usr 224 over Sandusky River	High traffic	Good	10,539	1956
SR 18 over Sandusky River	High traffic	Good	8,029	1994
Sr-53\|jfk Memorial over Csx & Now Rr	High traffic	Fair	7,742	1965
SR 18d Perry ST over Sandusky River	High traffic	Good	7,708	1997
Sr100 Washingtonst over Sandusky River	High traffic	Good	7,278	1997
Hop CR 26 over Branch Of Wolf Creek Ho	High traffic	Good	6,639	1968

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.