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Local T-631-1 over Trib. to Missouri River

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

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

Local T-631-1 over Trib. to Missouri River in Doniphan County, Kansas, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1910, making it 115 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 52 of the 128 inventoried bridges in Doniphan County rated fair (40.6%); 11 (8.6%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 29 ft
Location	1.9N of Wathena
NBI structure number	000221073903282
Condition class	Fair

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