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Csah 12 over Bois De Sioux River

Wilkin County, Minnesota · rated Fair in the 2025 National Bridge Inventory

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

Csah 12 over Bois De Sioux River in Wilkin County, Minnesota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1930, making it 95 years old at the 2025 inventory.
It carries about 9,650 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 31 of the 196 inventoried bridges in Wilkin County rated fair (15.8%); 8 (4.1%) 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	Prestressed concrete single box beam
Length	about 171 ft
Location	at N Dakota State Line
NBI structure number	4720
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Mn 210 over Red River of the North	1974	6,374	Fair
US 75 over Otter Tail River	1986	5,165	Fair
Mn 210 over Willow Creek	1931	3,968	Fair
Mn 210 over Flood Diversion Channel	2003	3,940	Fair
US 75 over Stream	1958	1,515	Good
Mn 108 over I 94	1968	1,502	Fair