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 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sd Noname 170 Jackson County | 17 | 1945 | Low | Not Rated |
| Sd Noname 172 Jackson County | 13 | 1955 | Low | Not Rated |
| Sd Noname 173 Pennington County | 16 | 1957 | Low | Not Rated |
| Sd Noname 173 Pennington County | 25 | 1957 | Low | Not Rated |
| Sd Noname 174 Pennington County | 26 | 1959 | Low | Not Rated |
| Sd Noname 177 Haakon County | 15 | 1956 | Low | Not Rated |
| Sd Noname 178 Pennington County | 13 | 1936 | Low | Not Rated |
| Sd Noname 179 Pennington County | 27 | 1965 | Low | Not Rated |
| Sd Noname 18 Pennington County | 16 | 1958 | Low | Not Rated |
| Sd Noname 180 Pennington County | 28 | 1937 | Low | Not Rated |
| Sd Noname 182 Jackson County | 22 | 1950 | Low | Not Rated |
| Sd Noname 183 Jackson County | 20 | 1950 | Low | Not Rated |
| Sd Noname 184 Jackson County | 16 | 1940 | Low | Not Rated |
| Sd Noname 186 Jackson County | 16 | 1950 | Low | Not Rated |
| Sd Noname 187 Jackson County | 18 | 1940 | Low | Not Rated |
| Sd Noname 188 Jackson County | 18 | 1940 | Low | Not Rated |
| Sd Noname 189 Jackson County | 13 | 1950 | Low | Not Rated |
| Sd Noname 19 Haakon County | 21 | 1972 | Low | Not Rated |
| Sd Noname 190 Jackson County | 13 | 1940 | Low | Not Rated |
| Sd Noname 193 Haakon County | 20 | 1957 | Low | Not Rated |
| Sd Noname 194 Haakon County | 14 | 1959 | Low | Not Rated |
| Sd Noname 194-2 Haakon County | 18 | 1956 | Low | Not Rated |
| Sd Noname 196 Haakon County | 18 | 1950 | Low | Not Rated |
| Sd Noname 198 Haakon County | 12 | 1960 | Low | Not Rated |
| Sd Noname 199 Haakon 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.