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Every bridge in Stanley County, South Dakota

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

37 inventoried bridges, busiest first

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

Stanley County, South Dakota, has 37 bridges in the 2025 National Bridge Inventory: 13 rated good, 18 fair, and 6 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
US083 over Bad Rv	1956	6,040	Fair
SD1806 over Ck	1963	1,566	Fair
SD1806 over Ck	1963	1,566	Fair
SD1806 over Draw	2010	1,566	Good
US014 over Frozenman Ck	2002	1,406	Good
US014 over Willow Ck	1984	1,406	Good
US014 over Wagon Hound Ck	2002	1,052	Fair
US014 over Ck	1960	624	Fair
US014 over Cottonwood Ck	1960	624	Fair
US014 over Plum Ck	1960	624	Fair
US014 over Little Prairie Dog Ck	1960	592	Good
US014 over Prairie Dog Ck	1960	592	Fair
State Highway 514 over Oahe Dam Discharge Chan.	1957	300	Fair
Irr SD1806 over La Roche Ck	2007	279	Fair
SD1806 over Antelope Ck	1981	279	Good
Fas 3214 280 Ave over Plum Ck	1990	210	Good
Fas 3214 over Bad Rv	1990	210	Good
Fas 3214 over Bad Rv	1990	210	Fair
Fas 3214 over Dan Powell Ck	1936	210	Poor
Fas 3215 280 Ave over Willow Ck	2008	210	Good
SD1806 over Chantier Ck	1970	177	Fair
291ST Ave over Antelope Ck	1935	130	Poor
Stae Highway 1806 over Oahe Dam Spillway	1963	123	Poor
Bad River Rd over Bad Rv	1990	85	Good
Fas 3214 270 Ave over Lance Ck	1972	85	Fair
Bad River Rd over Plum Ck	1983	71	Good
Fas 3214 270 Ave over Tomahawk Ck	1967	71	Fair
Fas 6280 over Sansarc Ck	1975	50	Fair
Hwy 34 Service Rd over Ck	1920	50	Fair
Hwy 63 Service Rd over Cottonwood Ck	1920	50	Fair
SD1806EF over Diversion Channel	1998	50	Good
SD1806EF over Diversion Channel	1998	50	Good
US014 Ef over Little Prairie Dog Ck	1920	50	Poor
US014 Ef over Prairie Dog Ck	1920	50	Poor
FAS6450 over Big Prairie Dog Ck	1992	47	Good
Pleasant Valley Rd over Lance Ck	1930	17	Poor
State Park Rd over Sand Ck	1964	10	Fair

Source: FHWA National Bridge Inventory, 2025.

Stanley County bridge conditions · South Dakota bridges by county.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.