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 1426–1450 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jones Lake Dam Hand County | 21 | 1996 | High | Fair |
| Jones Eugene No.1 Mellette County | 22 | 1950 | Low | Not Rated |
| Jones Dam Jackson County | 23 | 1997 | Low | Not Rated |
| Jones Dewey County | 20 | 1955 | Low | Not Rated |
| John Tescher Perkins County | 14 | 1951 | Low | Not Rated |
| Johnson Dam Marshall County | 20 | 1993 | Low | Not Rated |
| Johnson Dam Charles Mix County | 20 | 1972 | Low | Not Rated |
| Johnson Dam Deuel County | 24 | 1965 | Low | Not Rated |
| Johnson Bros 1 Harding County | 15 | 1960 | Low | Not Rated |
| Johnson Bros. Perkins County | 28 | 1951 | Low | Not Rated |
| Johnson Ziebach County | 21 | 1953 | Low | Not Rated |
| Johnson Pennington County | 19 | 1956 | Low | Not Rated |
| John Saucerman Number 1 Stanley County | 20 | 1948 | Low | Not Rated |
| John Penor Perkins County | 18 | 1949 | Low | Not Rated |
| John Penor Perkins County | 19 | 1952 | Low | Not Rated |
| Johnny Johnson Dam Butte County | 17 | 2008 | Low | Not Rated |
| John Meginess Dewey County | 25 | 1949 | Low | Not Rated |
| John Liebelt Dam Walworth County | 11 | 1940 | Low | Not Rated |
| John Johnson Perkins County | 25 | 1950 | Low | Not Rated |
| John Isaac Perkins County | 20 | 1951 | Low | Not Rated |
| John Holloway Dewey County | 18 | 1945 | Low | Not Rated |
| John Gesinger No.1 Dewey County | 20 | 1940 | Low | Not Rated |
| John Catron No.2 Harding County | 15 | 1954 | Low | Not Rated |
| John Catron No.1 Harding County | 22 | 1961 | Low | Not Rated |
| John Carr Jr. No. 4 Mellette County | 25 | 1972 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.