Home › South Dakota › Haakon County › 10 Mile Road over Mexican Ck

10 Mile Road over Mexican Ck

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

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

10 Mile Road over Mexican Ck in Haakon County, South Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1950, making it 75 years old at the 2025 inventory.
It carries about 58 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 8 of the 69 inventoried bridges in Haakon County rated poor (11.6%); 8 (11.6%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 24 ft
Location	7.4W & 10N Philip
NBI structure number	000000028096390
Condition class	Poor

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