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Irr US212 over Little Bear Ck

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

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

Irr US212 over Little Bear Ck in Dewey 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 2023, making it 2 years old at the 2025 inventory.
It carries about 1,291 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 15 of the 27 inventoried bridges in Dewey County rated good (55.6%); 4 (14.8%) 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 stringer or multi-beam girder
Length	about 119 ft
Location	1.8 E Ziebach Co Line
NBI structure number	000000021021307
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Irr SD020 over Ck	1997	890	Good
Irr SD020 over Ck	1997	890	Good
Irr SD063 over Moreau Rv	1971	717	Fair
Irr US212 over Virgin Ck	1990	601	Good
Irr US212 over Virgin Ck	1988	601	Good
Irr SD020 over Little Moreau Rv	1993	598	Good