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 2026–2050 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sd Noname 191 Jackson County | 22 | 1950 | Significant | Not Rated |
| Sd Noname 192 Jackson County | 31 | 1940 | Significant | 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 195 Haakon County | 14 | 1957 | Significant | 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 |
| Sd Noname 2 Buffalo County | 26 | 1946 | Low | Not Rated |
| Sd Noname 20 Pennington County | 23 | 1963 | Low | Not Rated |
| Sd Noname 201 Haakon County | 20 | 1934 | Significant | Not Rated |
| Sd Noname 202 Haakon County | 25 | 1952 | Low | Not Rated |
| Sd Noname 203 Haakon County | 15 | 1955 | Low | Not Rated |
| Sd Noname 204 Haakon County | 18 | 1955 | Low | Not Rated |
| Sd Noname 205 Haakon County | 26 | 1956 | Significant | Not Rated |
| Sd Noname 206 Haakon County | 13 | 1960 | Low | Not Rated |
| Sd Noname 207 Haakon County | 14 | 1950 | Significant | Not Rated |
| Sd Noname 21 Haakon County | 15 | 1970 | Low | Not Rated |
| Sd Noname 211 Haakon County | 20 | 1956 | Significant | Not Rated |
| Sd Noname 212 Haakon County | 22 | 1956 | Low | Not Rated |
| Sd Noname 213 Haakon County | 14 | 1968 | Low | Not Rated |
| Sd Noname 214 Haakon County | 14 | 1967 | Low | Not Rated |
| Sd Noname 215 Haakon County | 18 | 1969 | Low | Not Rated |
| Sd Noname 216 Haakon County | 16 | 1952 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.