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
Tallest Dams
- Grizzly Gulch Tailings Dam380 ft
- Oahe Dam245 ft
- Big Bend Dam205 ft
- Angostura Dam193 ft
- Deerfield Dam171 ft
High Hazard Dams
- Grizzly Gulch Tailings DamHigh
- Oahe DamHigh
- Big Bend DamHigh
- Angostura DamHigh
- Deerfield DamHigh
Poor Condition Dams
- OglalaUnsatisfactory
- MarindahlPoor
- Crow CreekPoor
- RichmondPoor
- Ghost HawkUnsatisfactory
All Dams in South Dakota
Showing 2251–2275 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Stickney (Jones) Aurora County | 24 | 1965 | Low | Not Rated |
| S. Tidball Dewey County | 19 | 1948 | Low | Not Rated |
| Stinking Buffalo Harding County | 19 | 1951 | Low | Not Rated |
| Stirling #2 Jones County | 25 | 1962 | Low | Not Rated |
| Stirling Number 1 Jones County | 25 | 1958 | Low | Not Rated |
| Stockade Lake Dam Custer County | 53 | 1930 | High | Fair |
| Stockton Number 1 Jones County | 27 | 1957 | Low | Not Rated |
| Stockton Ranch No. 1 Jones County | 25 | 1976 | Low | Not Rated |
| Stockwater Dam Stanley County | 28 | 1984 | Low | Not Rated |
| Stoeser Dam #2 Stanley County | 30 | 1976 | Low | Not Rated |
| Stoeser Dam #3 Stanley County | 20 | 1976 | Low | Not Rated |
| Stoeser No. 4 Stanley County | 25 | 2008 | Low | Not Rated |
| Stoeser No. 5 Stanley County | 30 | 2017 | Low | Not Rated |
| Stoeser No. 6 Stanley County | 34 | 2017 | Low | Not Rated |
| Stoeser No. 7 Stanley County | 28 | 2010 | Low | Not Rated |
| Stoeser No 8 Stanley County | 31 | 2018 | Low | Not Rated |
| Stoney Run Dam Beadle County | 20 | 1936 | Low | Not Rated |
| Stradinger No.1 Dewey County | 18 | 1941 | Low | Not Rated |
| Strain Eugene No. 1 Mellette County | 19 | 1972 | Low | Not Rated |
| Strain Ranch No. 1 Mellette County | 25 | 1963 | Low | Not Rated |
| Strain Ranch No. 2 Mellette County | 27 | 1963 | Low | Not Rated |
| Strain Ranch No. 3 Mellette County | 26 | 1966 | Low | Not Rated |
| Straka Bros. Lyman County | 28 | 1972 | Low | Not Rated |
| Strawberry Lawrence County | 13 | 1936 | Significant | Not Rated |
| Streeter Dam Custer County | 22 | 1945 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.