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 1601–1625 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Highway Dept. #2 Mellette County | 60 | 1970 | Significant | Not Rated |
| Highway 44 #6 Mellette County | 102 | 1973 | Significant | Not Rated |
| Highway 44 #4 Mellette County | 53 | 1970 | Significant | Not Rated |
| Highway 44 Mellette County | 50 | 1973 | Significant | Not Rated |
| Hight Number 5 Jones County | 29 | 1948 | Low | Not Rated |
| Hight Number 4 Jones County | 38 | 1956 | Low | Not Rated |
| Hight Number 3 Jones County | 29 | 1963 | Low | Not Rated |
| Hight Number 2 Jones County | 35 | 1955 | Low | Not Rated |
| Hight Number 1 Jones County | 25 | 1963 | Low | Not Rated |
| Hight No. 1 Mellette County | 29 | 1962 | Low | Not Rated |
| Highland Brown County | 14 | 1937 | Low | Not Rated |
| Hickman No.2 Ziebach County | 32 | 1949 | Low | Not Rated |
| Hickman No.1 Ziebach County | 29 | 1963 | Low | Not Rated |
| Hickman Dam Marshall County | 28 | 1939 | Low | Not Rated |
| H. Hulm Dewey County | 25 | 1938 | Low | Not Rated |
| H. Holm Dewey County | 20 | 1958 | Low | Not Rated |
| H. Harrison Dewey County | 19 | 1952 | Low | Not Rated |
| H.G. Horman Dam No.1 Butte County | 17 | 1958 | Low | Not Rated |
| H. Freeze Meade County | 14 | 1938 | Significant | Not Rated |
| Hett No.2 Harding County | 19 | 1949 | Low | Not Rated |
| Hett No.1 Harding County | 13 | 1958 | Low | Not Rated |
| Hess Pond No.1 Harding County | 15 | 1969 | Low | Not Rated |
| Herron Dam Ziebach County | 21 | 1939 | Low | Not Rated |
| Herrick Lake Gregory County | 20 | 1937 | Low | Not Rated |
| Herman Van Den Berg Perkins County | 18 | 1953 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.