Marion County Bridge Report Card

Marion County scores 62 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D62 / 100

Local infrastructure snapshot

Marion County, Kansas

Marion County has 323 bridges in the National Bridge Inventory, with 35 rated poor and 14 rated scour-critical. Its poor-condition share of 10.8% is above the 5.2% statewide average. Poor-condition bridges carry about 1,375 daily vehicle crossings.

323Total Bridges

35Poor (10.8%)

163Fair (50.5%)

14Scour-Critical

Quote-Ready Local Facts

10.8%of county bridges are in poor condition, compared with 5.2% statewide and 6.7% nationally.

1,375daily vehicle crossings are on poor-condition bridges in the county.

14bridges are rated scour-critical, or 4.3% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Marion County a Bridge Condition Exposure Score of 62/100 (D). The county has 323 bridges in the National Bridge Inventory, including 35 in poor condition and 14 rated scour-critical. Poor-condition bridges carry about 1,375 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	10.8%	21.7
Poor-condition traffic exposure	25	0.8% of measured traffic	0.6
Scour-critical bridge share	20	4.3%	8.7
Average age vs national baseline	10	66 years vs 48 nationally	7.4
Traffic-data completeness	5	163,599 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	10.8%
State Poor-Condition Share	5.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.3%
Average Bridge Age	66 years
Poor-Condition Traffic Exposure	1,375 vehicles/day

Bridges to Watch

Busiest Poor-Condition Bridge60 Rd. over Trib. To Doyle Creek — 275 vehicles/day Oldest Listed BridgeWagonwheel Rd. over Clear Creek — built in 1887 All County BridgesBrowse every bridge record in Marion County.

Top Bridges to Watch in Marion County

Bridge	Reason	Condition	Daily Traffic	Year Built
190 Rd. over Martin Creek	Poor condition + traffic exposure	Poor	45	1910
Xavier Rd. over Trib. To Spring Creek	Poor condition + traffic exposure	Poor	45	1940
170 Rd. over South Cottonwood River	Poor condition + traffic exposure	Poor	20	1920
Xavier Rd. over Martin Creek	Poor condition + traffic exposure	Poor	10	1930
60 Rd. over Trib. To Doyle Creek	Poor condition + traffic exposure	Poor	275	1935
200 Rd. over Mud Creek	Poor condition + traffic exposure	Poor	50	1900
Clover Rd. over Bruno Creek	Poor condition + traffic exposure	Poor	45	1900
280 Rd. over Trib. To N. Cottonwood	Poor condition + traffic exposure	Poor	45	1915
70 Rd. over Trib. To Doyle Creek	Poor condition + traffic exposure	Poor	45	1931
Pawnee Rd. over Trib. To Mud Creek	Poor condition + traffic exposure	Poor	45	1953

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.