Every bridge in Dewey County, South Dakota

Name: Every bridge in Dewey County, South Dakota
Creator: Bridge Report Card
License: https://creativecommons.org/publicdomain/zero/1.0/

27 inventoried bridges, busiest first

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

Dewey County, South Dakota, has 27 bridges in the 2025 National Bridge Inventory: 15 rated good, 8 fair, and 4 poor (as of August 20, 2026).
This index lists every one of them, busiest first; each links to its own condition record.

Bridge	Built	Vehicles/day	Condition
Irr US212 over Little Bear Ck	2023	1,291	Good
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
Irr Bia Rte 3 over Veo Creek	2016	550	Good
Irr County Road over Creek	2020	451	Good
Irr Bia Rte 3 over Moreau River	1987	305	Good
Irr Bia Rte 3 over Hand Boy Creek	1964	200	Fair
Irr Bia Rte 4 over Green Grass Creek	2013	195	Good
Irr Bia Rte 2 over Red Water Creek	1961	180	Poor
Irr Bia Route 8 over East Branch Willow Creek	2008	160	Good
Irr Bia Rte 8 over Stove Creek	2013	110	Good
Irr Bia Rte 2 over Little Moreau Creek	1960	109	Fair
Irr Bia Rte 7 over Moreau River	1961	105	Fair
Irr Bia Rte 7 over Virgin Creek	1961	105	Poor
Fas 6247 over Bear Creek	1960	103	Poor
Irr Bia Rte 7 over Beaver Creek	1960	100	Fair
Bia Highway 4 over Creek	2008	90	Good
Irr Bia Rte 7 over Buffalo Skin Creek	2013	77	Good
Irr Bia Rte 7 over No Mouth Creek	1960	70	Poor
Irr County Road over Creek	1965	55	Fair
Irr County Road over Creek	1960	38	Fair
Irr County Road over Trib to Little Moreau R	2008	10	Good
Irr State Park Rd over Little Moreau Rv	1950	5	Fair