Home › South Dakota › Haakon County › Northwestern Ave over Mitchell Ck

Northwestern Ave over Mitchell Ck

Haakon County, South Dakota · rated Fair in the 2025 National Bridge Inventory

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

Northwestern Ave over Mitchell Ck in Haakon County, South Dakota, 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 1965, making it 60 years old at the 2025 inventory.
It carries about 45 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 38 of the 69 inventoried bridges in Haakon County rated fair (55.1%); 8 (11.6%) 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	Prestressed concrete tee beam
Length	about 90 ft
Location	Midland
NBI structure number	000000028429470
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US014 over Ck	1955	978	Fair
US014 over Ck	1955	978	Fair
US014 over North Fork Bad Rv	1995	978	Fair
SD073 over West Plum Ck	1990	700	Fair
SD073 over Grindstone Ck	1954	700	Fair
US014 over Ck	1954	660	Fair