Marshall County Bridge Report Card

Marshall County scores 67 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

D67 / 100

Local infrastructure snapshot

Marshall County, Kansas

Marshall County has 403 bridges in the National Bridge Inventory, with 42 rated poor and 17 rated scour-critical. Its poor-condition share of 10.4% is above the 5.2% statewide average. Poor-condition bridges carry about 2,632 daily vehicle crossings.

403Total Bridges

42Poor (10.4%)

159Fair (39.5%)

17Scour-Critical

Quote-Ready Local Facts

10.4%of county bridges are in poor condition, compared with 5.2% statewide and 6.7% nationally.

2,632daily vehicle crossings are on poor-condition bridges in the county.

17bridges are rated scour-critical, or 4.2% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Marshall County a Bridge Condition Exposure Score of 67/100 (D). The county has 403 bridges in the National Bridge Inventory, including 42 in poor condition and 17 rated scour-critical. Poor-condition bridges carry about 2,632 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	10.4%	20.8
Poor-condition traffic exposure	25	3.1% of measured traffic	2.3
Scour-critical bridge share	20	4.2%	8.4
Average age vs national baseline	10	51 years vs 48 nationally	1.2
Traffic-data completeness	5	85,092 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	10.4%
State Poor-Condition Share	5.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	4.2%
Average Bridge Age	51 years
Poor-Condition Traffic Exposure	2,632 vehicles/day

Bridges to Watch

Busiest Poor-Condition BridgeK9 HWY over Robidoux Creek — 964 vehicles/day Oldest Listed BridgeState LN RD 10.5-a over Spring Creek — built in 1900 All County BridgesBrowse every bridge record in Marshall County.

Top Bridges to Watch in Marshall County

Bridge	Reason	Condition	Daily Traffic	Year Built
K9 HWY over Robidoux Creek	Poor condition + traffic exposure	Poor	964	1962
26th RD (rs 735) over Trib Vermillion River	Poor condition + traffic exposure	Poor	100	1962
Local 25.1-a.0 over Trib. To Pole Creek	Poor condition + traffic exposure	Poor	30	1935
Local 26.7-a.0 over Pole Creek	Poor condition + traffic exposure	Poor	25	1925
Harvest (20.1-i.0) over Robidoux Creek	Poor condition + traffic exposure	Poor	10	1900
19th RD (18.0-r.7) over Dog Walk Creek	Poor condition + traffic exposure	Poor	10	1945
6th RD (rs 431) over Raemer Creek	Poor condition + traffic exposure	Poor	338	1940
4th Rd. Rs 431 over Little Blue River	Poor condition + traffic exposure	Poor	323	1962
Tumbleweed(rs1235) over Robidoux Creek	Poor condition + traffic exposure	Poor	218	1931
Cherokee (rs 432) over Elm Creek	Poor condition + traffic exposure	Poor	131	1949

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.