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 1701–1725 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ponca Gregory County | 45 | 1935 | High | Satisfactory |
| Porter Moss Agate Dam Fall River County | 18 | 1940 | Low | Not Rated |
| Poss Dam Meade County | 24 | 1978 | Low | Not Rated |
| Poss Dam Haakon County | 21 | 1960 | Low | Not Rated |
| Post Lake Dam Sully County | 21 | 1936 | Low | Not Rated |
| Pothast Dam Ziebach County | 30 | 2003 | Low | Not Rated |
| Potts Dam Potter County | 21 | 1935 | Low | Not Rated |
| Praire Dog Creek Dam Harding County | 25 | 1951 | Low | Not Rated |
| Praire Farms Dam Tripp County | 25 | 1976 | Low | Not Rated |
| Prairie View Farms INC.1 Meade County | 30 | 1973 | Low | Not Rated |
| Prince Irrigation Dam #2 Stanley County | 46 | 1976 | Significant | Not Rated |
| Prince & Sons Number 1 Stanley County | 27 | 1960 | Low | Not Rated |
| Prince & Sons Number 2 Stanley County | 36 | 1961 | Low | Not Rated |
| Prokop Dam Jackson County | 16 | 1975 | Low | Not Rated |
| P. Stradinger No.2 Dewey County | 15 | 1938 | Low | Not Rated |
| Pudwell Dam Corson County | 27 | 1939 | Significant | Not Rated |
| Quade Dam Roberts County | 26 | 2009 | Low | Not Rated |
| Quinn Dam Pennington County | 17 | 1937 | Low | Not Rated |
| Quinn Twp Dam Pennington County | 16 | 1935 | Low | Not Rated |
| Quirk Dam Hyde County | 31 | 1935 | Low | Not Rated |
| Rabbit Creek Dam Harding County | 34 | 1970 | Significant | Not Rated |
| Rada No. 2 Mellette County | 25 | 1966 | Low | Not Rated |
| Rada Roy No.1 Mellette County | 26 | 1968 | Low | Not Rated |
| Rae Number 1 Jones County | 25 | 1953 | Low | Not Rated |
| Rae Number 2 Jones County | 31 | 1959 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.