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 2401–2425 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bergeson Dam Stanley County | 30 | 1995 | Low | Not Rated |
| Benson Dam Harding County | 23 | 1960 | Low | Not Rated |
| Benson Dam Tripp County | 35 | 1977 | Low | Not Rated |
| Bennett Robert No. 1 Mellette County | 29 | 1963 | Low | Not Rated |
| Bennett Number 1 Mellette County | 28 | 1963 | Low | Not Rated |
| Bennett Martin Hughes County | 18 | 1954 | Low | Not Rated |
| Ben Clark Perkins County | 15 | 1955 | Low | Not Rated |
| Ben Clark Perkins County | 19 | 1955 | Low | Not Rated |
| Belvidere Dam Jackson County | 17 | 1930 | Low | Not Rated |
| Belle Fourche Diversion Dam Butte County | 36 | 1907 | Low | Not Available |
| Belle Fourche Dam Butte County | 122 | 1911 | High | Not Available |
| Beer Mug Dam Harding County | 19 | 1956 | Low | Not Rated |
| Bednar Dam Ziebach County | 19 | 1933 | High | Poor |
| Bedingfield Dam Meade County | 28 | 2006 | Low | Not Rated |
| Beckwith Dam Haakon County | 75 | 1977 | Low | Not Rated |
| Bechen Dam Jackson County | 24 | 1935 | Low | Not Rated |
| Beaver Yankton County | 15 | 1941 | Low | Not Rated |
| Beaulieu Tripp County | 41 | 1947 | High | Fair |
| Beal Stockwater Dam Buffalo County | 30 | 1949 | Significant | Not Rated |
| Beal Dam Buffalo County | 25 | 1952 | Low | Not Rated |
| B. Deuter Hand County | 25 | 1956 | Low | Not Rated |
| B. Curtis Dewey County | 20 | 1955 | Low | Not Rated |
| B. Butler No.3 Ziebach County | 16 | 1951 | Low | Not Rated |
| B. Butler No.2 Ziebach County | 14 | 1954 | Low | Not Rated |
| B. Butler No.1 Ziebach County | 20 | 1946 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.