Hamilton County Bridge Report Card

Hamilton County scores 79 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.

C79 / 100

Local infrastructure snapshot

Hamilton County, Kansas

Hamilton County has 68 bridges in the National Bridge Inventory, with 0 rated poor and 4 rated scour-critical. Its poor-condition share of 0.0% is at or below the 5.2% statewide average.

68Total Bridges

0Poor (0.0%)

8Fair (11.8%)

4Scour-Critical

Quote-Ready Local Facts

0.0%of county bridges are in poor condition, compared with 5.2% statewide and 6.7% nationally.

0daily vehicle crossings are on poor-condition bridges in the county.

4bridges are rated scour-critical, or 5.9% of the county bridge inventory.

Copyable Facts for Reporters

BridgeLookup.com gives Hamilton County a Bridge Condition Exposure Score of 79/100 (C). The county has 68 bridges in the National Bridge Inventory, including 0 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 0 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	0.0%	0.0
Poor-condition traffic exposure	25	0.0% of measured traffic	0.0
Scour-critical bridge share	20	5.9%	11.8
Average age vs national baseline	10	71 years vs 48 nationally	9.2
Traffic-data completeness	5	85,683 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	0.0%
State Poor-Condition Share	5.2%
National Poor-Condition Share	6.7%
County Scour-Critical Share	5.9%
Average Bridge Age	71 years
Poor-Condition Traffic Exposure	0 vehicles/day

Bridges to Watch

Oldest Listed BridgeUs50 HWY over Shirley Creek — built in 1931 All County BridgesBrowse every bridge record in Hamilton County.

Top Bridges to Watch in Hamilton County

Bridge	Reason	Condition	Daily Traffic	Year Built
Us50 HWY over Arkansas River Drainage	Scour-critical foundation rating	Good	2,257	1933
K27 HWY over Little Bear Creek	Scour-critical foundation rating	Good	1,488	1966
Rs 308 RD B over Arkansas River	Scour-critical foundation rating	Fair	310	1962
Aa Road over Arkansas River	Scour-critical foundation rating	Good	95	1976
Us50 HWY over Plum Creek	High traffic	Good	2,780	1939
Us50 HWY over Arkansas River Drainage	High traffic	Good	2,780	1939
Us50 HWY over Syracuse Creek	High traffic	Good	2,780	2018
K27 HWY over Arkansas River	High traffic	Fair	2,770	1952
Us50 HWY over Arkansas River Drainage	High traffic	Good	2,709	1933
Us50 HWY over Arkansas River Drainage	High traffic	Good	2,483	1937

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.