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Ash Creek Road over Upper Deep Creek

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

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

Ash Creek Road over Upper Deep Creek in Haakon County, South Dakota, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2015, making it 10 years old at the 2025 inventory.
It carries about 7 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 23 of the 69 inventoried bridges in Haakon County rated good (33.3%); 8 (11.6%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 75 ft
Location	10.6 W & 3.1 S Milesville
NBI structure number	000000028053231
Condition class	Good

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