South Dakota Dams

2,541 dams tracked by the National Inventory of Dams

Total Dams

2,541

High Hazard

86

3.4%

Poor / Unsatisfactory

34

Average Age

68 yrs

Hazard Classification

High86 (3.4%)
Significant149 (5.9%)
Low2,306 (90.8%)

Condition Assessment

Satisfactory9 (0.4%)
Fair41 (1.6%)
Poor / Unsatisfactory34 (1.3%)
Not Rated2,457 (96.7%)

Federal

158

State

171

Local

84

Private

2,125

Poor Condition Dams

All Dams in South Dakota

Showing 251275 of 2,541

Dam NameHeight (ft)YearHazardCondition
Swayze Irr. Dam #2

Roberts County

241980LowNot Rated
Swayze Irr. Dam

Roberts County

211981LowNot Rated
Sutton Bay Dam

Sully County

372002LowNot Rated
Sunshine

Haakon County

331933LowNot Rated
Sundell Dam

Tripp County

201935LowNot Rated
Summit

Lyman County

181938LowNot Rated
Sully Dam

Tripp County

171935LowNot Rated
Sully Dam

Sully County

221938LowNot Rated
Sully 2

Todd County

291935HighSatisfactory
Styles Number 1

Jones County

161937LowNot Rated
Sturgis #5

Meade County

441959SignificantNot Rated
Sturgis #4

Meade County

371929SignificantNot Rated
Sturgis #2

Meade County

301894SignificantNot Rated
Strong 2

Meade County

111960LowNot Rated
Stromer Herman No.2

Mellette County

361964LowNot Rated
Stromer Herman No.1

Mellette County

281963LowNot Rated
Streeter Dam

Custer County

221945SignificantNot Rated
Strawberry

Lawrence County

131936SignificantNot Rated
Straka Bros.

Lyman County

281972LowNot Rated
Strain Ranch No. 3

Mellette County

261966LowNot Rated
Strain Ranch No. 2

Mellette County

271963LowNot Rated
Strain Ranch No. 1

Mellette County

251963LowNot Rated
Strain Eugene No. 1

Mellette County

191972LowNot Rated
Stradinger No.1

Dewey County

181941LowNot Rated
Stoney Run Dam

Beadle County

201936LowNot Rated
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.