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K9 Hwy over Robidoux Creek

Marshall County, Kansas · rated Poor in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

K9 Hwy over Robidoux Creek in Marshall County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1962, making it 63 years old at the 2025 inventory.
It carries about 964 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 42 of the 403 inventoried bridges in Marshall County rated poor (10.4%); 42 (10.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Continuous concrete tee beam
Length	about 189 ft
Location	10.60 Mi E Ejct US77
NBI structure number	999900900580251
Condition class	Poor

Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.

Bridge	Built	Vehicles/day	Condition
U36 Hwy over Bigblueriv&uprr&localrd	2004	5,184	Good
US36 Hwy over Spring Creek Drainage	1957	3,333	Good
US-36 Hwy over Spring Creek	1993	3,333	Good
US36 Hwy over N F Blk Vermillion R Drn	1958	3,045	Good
US 36 Hwy over Robidoux Creek	1990	2,986	Good
US36 Hwy over N F Blk Vermillion R Drn	1958	2,608	Fair