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 2176–2200 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Virgil Horton 1 Pennington County | 15 | 1916 | Low | Not Rated |
| Virgil Horton 2 Pennington County | 20 | 1937 | Low | Not Rated |
| Virgil Horton 4 Pennington County | 18 | 1952 | Low | Not Rated |
| V. Miller No.1 Ziebach County | 21 | 1948 | Low | Not Rated |
| Vobedja Perkins County | 28 | 1934 | Low | Not Rated |
| Vogeler Lake Faulk County | 18 | 1938 | Low | Not Rated |
| Vogel/Sautner Dam Potter County | 13 | 1993 | Low | Not Rated |
| Volberg #2 Mellette County | 25 | 1950 | Low | Not Rated |
| Walder No.1 Harding County | 21 | 1960 | Low | Not Rated |
| Waletich Dam Roberts County | 29 | 2000 | Low | Not Rated |
| Wall Dam Ziebach County | 20 | 1946 | Low | Not Rated |
| Walloch Dam Yankton County | 20 | 2016 | Low | Not Rated |
| Walt Crawford Perkins County | 24 | 1950 | Low | Not Rated |
| Walter Dennis Irrigation Jackson County | 21 | 1960 | Low | Not Rated |
| Walter Dennis Irrigation Jackson County | 23 | 1960 | Low | Not Rated |
| Walter D. Miller Dam #1 Meade County | 25 | 1963 | Low | Not Rated |
| Walter Ingals Meade County | 15 | 1951 | Low | Not Rated |
| Walter Miller No.1 Ziebach County | 21 | 1961 | Low | Not Rated |
| Walter Schlomer Walworth County | 17 | 1938 | Low | Not Rated |
| Walter Thompson Stanley County | 25 | 1959 | Low | Not Rated |
| Walt Hoffman No.1 Pennington County | 27 | 1958 | Low | Not Rated |
| Ward Dam Pennington County | 19 | 1990 | Low | Not Rated |
| Ward Vanhorn Harding County | 17 | 1956 | Low | Not Rated |
| Warren Jackson Dam Moody County | 10 | 1999 | Low | Not Rated |
| Washout Harding County | 30 | 1947 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.