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 1376–1400 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Marlo Johnson Perkins County | 31 | 1959 | Low | Not Rated |
| Marple Ziebach County | 12 | 1938 | Low | Not Rated |
| Marsh Dam Pennington County | 18 | 1981 | Low | Not Rated |
| Martha Munroe Meade County | 15 | 1951 | Low | Not Rated |
| Martin Dam Jackson County | 14 | 1940 | Low | Not Rated |
| Martin Sander Perkins County | 14 | 1951 | Low | Not Rated |
| Marty Mission Charles Mix County | 65 | 1938 | Low | Not Rated |
| Marvin Reinhold Dam No.1 Meade County | 26 | 1959 | Low | Not Rated |
| M. Aspach Ziebach County | 27 | 1959 | Low | Not Rated |
| Mathews #1 Jones County | 27 | 1959 | Low | Not Rated |
| Mathews Bros. Number 1 Stanley County | 28 | 1966 | Low | Not Rated |
| Mathews Bros. Number 2 Stanley County | 27 | 1958 | Low | Not Rated |
| Matson Harding County | 23 | 1952 | Low | Not Rated |
| Matter Ziebach County | 18 | 1938 | Low | Not Rated |
| Matzke Lake Campbell County | 10 | 1938 | Low | Not Rated |
| Maurice Brengle Harding County | 20 | 1959 | Low | Not Rated |
| Mayberry Park Hyde County | 7 | 1952 | Low | Not Rated |
| May Dam Jackson County | 24 | 1947 | Low | Not Rated |
| Mayer Dam Buffalo County | 19 | 2011 | Low | Not Rated |
| Mayer Dam Buffalo County | 28 | 1951 | Significant | Not Rated |
| May & Sons Dam Jackson County | 24 | 1979 | Low | Not Rated |
| May & Sons, INC. Jackson County | 34 | 1978 | Low | Not Rated |
| Mccasland and Schiller 1 Meade County | 29 | 1948 | Low | Not Rated |
| Mccasland and Schiller 2 Meade County | 17 | 1972 | Low | Not Rated |
| Mccasland and Schiller 3 Meade County | 25 | 1968 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.