Home › Kansas › Montgomery County › US-400 Hwy WB over US-75 Hwy

US-400 Hwy WB over US-75 Hwy

Montgomery County, Kansas · rated Good in the 2025 National Bridge Inventory

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

US-400 Hwy WB over US-75 Hwy in Montgomery County, Kansas, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 1,955 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 105 of the 326 inventoried bridges in Montgomery County rated good (32.2%); 18 (5.5%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous prestressed concrete stringer or multi-beam girder
Length	about 236 ft
Location	2.1 Mi SE Wilson Coln
NBI structure number	999940000630781
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US166 US169 Hwy over Verdigris River	1948	10,188	Good
US75 US160 Hwy over UP RR 20TH ST & Drg.	1940	8,501	Good
US169 Hwy over Onion Creek Overflow	1988	6,903	Good
US169 Hwy over Onion Creek	1988	6,903	Good
Eighth Street; 001 over Sycamore Creek	1984	5,950	Fair
US160 K96 Hwy over Mouse Creek	1960	5,920	Fair