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 1951–1975 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sd Noname 72 Haakon County | 15 | 1956 | Low | Not Rated |
| Sd Noname 73 Haakon County | 17 | 1957 | Low | Not Rated |
| Sd Noname 74 Haakon County | 11 | 1950 | Low | Not Rated |
| Sd Noname 76 Haakon County | 15 | 1960 | Low | Not Rated |
| Sd Noname 78 Haakon County | 13 | 1958 | Low | Not Rated |
| Sd Noname 80 Haakon County | 16 | 1970 | Low | Not Rated |
| Sd Noname 81 Haakon County | 23 | 1955 | Low | Not Rated |
| Sd Noname 82 Haakon County | 14 | 1957 | Low | Not Rated |
| Sd Noname 83 Haakon County | 15 | 1959 | Low | Not Rated |
| Sd Noname 85 Haakon County | 18 | 1954 | Low | Not Rated |
| Sd Noname 87 Haakon County | 17 | 1950 | Low | Not Rated |
| Sd Noname 88 Haakon County | 20 | 1965 | Low | Not Rated |
| Sd Noname 89 Haakon County | 17 | 1959 | Low | Not Rated |
| Sd Noname 90 Haakon County | 16 | 1955 | Low | Not Rated |
| Sd Noname 93 Haakon County | 18 | 1952 | Low | Not Rated |
| Sd Noname 94 Haakon County | 15 | 1952 | Low | Not Rated |
| Sd Noname 95 Haakon County | 16 | 1948 | Low | Not Rated |
| Seefeldt Dam Clark County | 28 | 1992 | Low | Not Rated |
| Seiler Dam Corson County | 20 | 1980 | Low | Not Rated |
| Selvin Johnson Pennington County | 26 | 1935 | Low | Not Rated |
| Se Sw Sec.31-T1n-R26e Jones County | 26 | 1956 | Low | Not Rated |
| Shaeffer Dam McCook County | 30 | 2008 | Low | Not Rated |
| Sheriff (Nid) Jones County | 28 | 1938 | Low | Not Rated |
| Sheriff Number 1 Jones County | 30 | 1949 | Low | Not Rated |
| Shirley Miller Meade County | 18 | 1953 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.