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 951–975 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hoffman Dam Pennington County | 20 | 1940 | Low | Not Rated |
| Hollingsworth-Shaffer Ranch Dam Stanley County | 29 | 2013 | Low | Not Rated |
| Holsti Dam Harding County | 15 | 1954 | Low | Not Rated |
| Holzwarth Dam Potter County | 25 | 1956 | Significant | Not Rated |
| Homer Faeller Harding County | 14 | 1951 | Low | Not Rated |
| Hoover Dam Butte County | 16 | 1930 | Low | Not Rated |
| Horman Dam Butte County | 27 | 1969 | Low | Not Rated |
| Horsethief Lake Pennington County | 65 | 1940 | High | Not Rated |
| Horstman #1 Mellette County | 23 | 1954 | Low | Not Rated |
| Horton Dam Roberts County | 16 | 1978 | Low | Not Rated |
| Horton Dam #2 Roberts County | 18 | 1976 | Low | Not Rated |
| Houck Dam Walworth County | 26 | 1980 | Low | Not Rated |
| Houghton Dam Brown County | 7 | 1938 | Low | Poor |
| Howard Capp Perkins County | 17 | 1952 | Low | Not Rated |
| Howard Capp Perkins County | 16 | 1951 | Low | Not Rated |
| Howard Capp Perkins County | 16 | 1952 | Low | Not Rated |
| Howard J. Kunstle Potter County | 19 | 1946 | Low | Not Rated |
| Howard Schmele Dam No.1 Butte County | 13 | 1950 | Significant | Not Rated |
| Howes Grazing Association Meade County | 19 | 1998 | Low | Not Rated |
| Howie Dam Meade County | 22 | 1949 | High | Fair |
| H. Schuchhardt Ziebach County | 16 | 1942 | Low | Not Rated |
| Huber #1 Mellette County | 25 | 1955 | Low | Not Rated |
| Huddleston Dam Bennett County | 12 | — | Low | Not Rated |
| Hulm Ziebach County | 18 | 1956 | Low | Not Rated |
| Hunt #1 Jones County | 26 | 1954 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.