Mercer County Bridge Report Card

Mercer 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

Mercer County, Ohio

Mercer County has 327 bridges in the National Bridge Inventory, with 5 rated poor and 0 rated scour-critical. Its poor-condition share of 1.5% is at or below the 4.7% statewide average. Poor-condition bridges carry about 2,596 daily vehicle crossings.

327Total Bridges

5Poor (1.5%)

173Fair (52.9%)

0Scour-Critical

Quote-Ready Local Facts

1.5%of county bridges are in poor condition, compared with 4.7% statewide and 6.7% nationally.

2,596daily 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 Mercer County a Bridge Condition Exposure Score of 96/100 (A). The county has 327 bridges in the National Bridge Inventory, including 5 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 2,596 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	1.5%	3.1
Poor-condition traffic exposure	25	0.9% of measured traffic	0.7
Scour-critical bridge share	20	0.0%	0.0
Average age vs national baseline	10	36 years vs 48 nationally	0.0
Traffic-data completeness	5	278,177 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	1.5%
State Poor-Condition Share	4.7%
National Poor-Condition Share	6.7%
County Scour-Critical Share	0.0%
Average Bridge Age	36 years
Poor-Condition Traffic Exposure	2,596 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeSiegrist Jutte RD over Wabash River — 1,194 vehicles/day Oldest Listed BridgeNeptune Mendon RD over Eightmile Creek — built in 1900 All County BridgesBrowse every bridge record in Mercer County.

Top Bridges to Watch in Mercer County

Bridge	Reason	Condition	Daily Traffic	Year Built
Siegrist Jutte RD over Wabash River	Poor condition + traffic exposure	Poor	1,194	1987
Sharpsburg Road over Branch Of Wabash River	Poor condition + traffic exposure	Poor	723	1965
Rockford West Road over Big Blackcreek	Poor condition + traffic exposure	Poor	272	1985
Huwer Road over Br Of Mile Creek	Poor condition + traffic exposure	Poor	235	1993
Erastus Durbin RD over Big Run	Poor condition + traffic exposure	Poor	172	1911
Usr-127 over Beaver Creek	High traffic	Good	9,767	2008
Usr-127 over Coldwater Creek	High traffic	Good	9,115	1950
Usr-127 over Dahlinghaus Ditch	High traffic	Good	6,978	1950
Usr 33 over Eight Mile Creek	High traffic	Good	6,514	1997
Usr 33 over Twelve Mile Creek	High traffic	Fair	6,433	1962

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.