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Local T-623-1 over Trib. to Missouri River

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

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

Local T-623-1 over Trib. to Missouri River in Doniphan County, Kansas, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2001, making it 24 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2005).
Its listed owner is the county highway agency.
It is one of 65 of the 128 inventoried bridges in Doniphan County rated good (50.8%); 11 (8.6%) 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	Steel stringer or multi-beam girder
Length	about 50 ft
Location	4.0N 2.3E of Troy
NBI structure number	000221063803207
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US-36 Hwy WB over Old K-238 Hwy	1983	8,413	Good
US 36 W over Missouri Rvr	1983	8,227	Fair
US 36 E over Missouri Rvr	1983	7,009	Fair
US-36 Hwy EB over Old K-238 Hwy	1983	5,848	Good
US36 Hwy over Williams Creek	1953	5,531	Good
US36 Hwy over Peters Creek Drainage	1953	5,531	Fair