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County Highway over Buffalo Coulee

Traill County, North Dakota · rated Fair in the 2025 National Bridge Inventory

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

County Highway over Buffalo Coulee in Traill County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1950, making it 75 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2018).
Its listed owner is the county highway agency.
It is one of 75 of the 147 inventoried bridges in Traill County rated fair (51.0%); 26 (17.7%) 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	Timber stringer or multi-beam girder
Length	about 41 ft
Location	5 East 1 North Buxton
NBI structure number	000000049123051
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Interstate 29 over North Branch Elm River	2021	11,635	Good
Interstate 29 over Buffalo Coulee	1969	9,400	Good
Interstate 29 over Branch of Buffalo Coulee	1969	9,100	Good
Interstate 29 over Branch of Buffalo Coulee	1969	9,100	Good
Nd Highway 18 over Goose River	1966	4,800	Fair
Interstate 29 over Goose River	1970	4,550	Poor