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339 Avenue over Medicine Ck

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

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

339 Avenue over Medicine Ck in Hyde 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 deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1969, making it 56 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 10 of the 23 inventoried bridges in Hyde County rated fair (43.5%); 5 (21.7%) 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	Concrete stringer or multi-beam girder
Length	about 24 ft
Location	2E & 3S of Highmore
NBI structure number	000000035130282
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
Irr SD034 over West Fork Elm Ck	1955	918	Fair
Irr SD034 over Campbell Ck	1963	918	Poor
Irr SD034 over Draw	2001	604	Good
Irr SD034 over West Fork Elm Ck	2001	604	Good
SD047 over South Medicine Ck	1959	543	Fair
Irr Ar SD047 over Br West Fork Elm Ck	1959	405	Fair