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 2001–2025 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Dry Hole Harding County | 27 | 1951 | Low | Not Rated |
| Dry Draw Dam Fall River County | 18 | 1920 | Significant | Not Rated |
| Dry Creek Subimpoundment Charles Mix County | 30 | 1984 | Low | Not Rated |
| Drolc No.1 Harding County | 27 | 1950 | Low | Not Rated |
| Driftwood Dairy Sw Wwp Minnehaha County | 31 | 2020 | Low | Not Rated |
| Driftwood Dairy Se Wwp Minnehaha County | 17 | 2020 | Low | Not Rated |
| Driftwood Dairy Nw Wwp Minnehaha County | 31 | 2020 | Low | Not Rated |
| Dreis Bros Haakon County | 24 | 1972 | Low | Not Rated |
| Draper Dam Jones County | 20 | 1939 | Significant | Not Rated |
| Dragest Dam Ziebach County | 32 | 1977 | Significant | Fair |
| Dowling Number 1 Jones County | 24 | 1952 | Low | Not Rated |
| Dowd Dam Charles Mix County | 32 | 1935 | Low | Not Rated |
| Double Dam Stanley County | 21 | 1938 | Low | Not Rated |
| Dorman Dam Lyman County | 18 | 1939 | Low | Not Rated |
| Doolittle Dam Stanley County | 20 | 2018 | Low | Not Rated |
| Don Farlee Dewey County | 20 | 1938 | Low | Not Rated |
| Donald King 5 Haakon County | 18 | 1952 | Low | Not Rated |
| Donald King 4 Haakon County | 20 | 1954 | Low | Not Rated |
| Donald King 3 Haakon County | 15 | 1954 | Low | Not Rated |
| Donald King 2 Haakon County | 25 | 1955 | Low | Not Rated |
| Donald King Haakon County | 15 | 1955 | Low | Not Rated |
| Donald Kelly Dam Pennington County | 16 | 1958 | Low | Not Rated |
| Donald Ferguson Haakon County | 19 | 1972 | Low | Not Rated |
| Dolezal Number 1 Mellette County | 26 | 1963 | Low | Not Rated |
| Dolezal No. 9 Mellette County | 32 | 1963 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.