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 1826–1850 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Road Dam Harding County | 20 | 1948 | Low | Not Rated |
| Road Dam Harding County | 19 | 1953 | Low | Not Rated |
| Road Draw Dam Harding County | 20 | — | Low | Not Rated |
| Robert Bolander Campbell County | 26 | 1953 | Low | Not Rated |
| Robert Calkinsor Stanley County | 22 | 1966 | Low | Not Rated |
| Robert Kressly Perkins County | 27 | 1952 | Low | Not Rated |
| Robert Kressly Perkins County | 20 | 1951 | Low | Not Rated |
| Robert Meyer No.1 Ziebach County | 21 | 1954 | Low | Not Rated |
| Robert Meyer No.2 Ziebach County | 21 | 1956 | Low | Not Rated |
| Robert Meyer No.3 Ziebach County | 20 | 1948 | Low | Not Rated |
| Robert Reeder Perkins County | 21 | 1951 | Low | Not Rated |
| Robert Schuelke Meade County | 18 | 1950 | Low | Not Rated |
| Robertson No. 1 Gregory County | 30 | 1975 | Significant | Not Rated |
| Robert Week Perkins County | 18 | 1955 | Low | Not Rated |
| Robinson Dam Perkins County | 18 | 1936 | Low | Not Rated |
| Rock Cowan No. 1 Dewey County | 26 | 1950 | Low | Not Rated |
| Rock Cowan No.2 Dewey County | 19 | 1951 | Low | Not Rated |
| Rock Cowan No.3 Dewey County | 22 | 1950 | Low | Not Rated |
| Rock Cowan No. 4 Dewey County | 25 | 1964 | Low | Not Rated |
| Rock Hill Pond Jackson County | 17 | 1935 | Low | Not Rated |
| Rod & Gun Lawrence County | 20 | — | High | Not Rated |
| Rodney Winkler Dam No. 1 Butte County | 20 | 1920 | Low | Not Rated |
| Roe Wpa Dam Codington County | 8 | 1988 | Low | Not Rated |
| Rogers Dam Sully County | 21 | 2012 | Low | Fair |
| Roger Weiss Meade County | 18 | 1960 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.