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333RD Avenue over South Medicine Ck

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

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

333RD Avenue over South Medicine Ck in Hyde 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 culvert, rated 4 (poor condition) on the 0-9 scale.
It was built in 1934, making it 91 years old at the 2025 inventory.
It carries about 31 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 5 of the 23 inventoried bridges in Hyde County rated poor (21.7%); 5 (21.7%) 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

Component	Rating (2025)	FHWA scale meaning
Culvert	4	Poor condition


Structure	Continuous concrete culvert
Length	about 32 ft
Location	4W 1.2S Highmore
NBI structure number	000000035070262
Condition class	Poor

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