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 76–100 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| White River Grazing Assoc. No.1 Mellette County | 26 | 1960 | Low | Not Rated |
| White River Association #3 Mellette County | 31 | 1957 | Low | Not Rated |
| White River Association Mellette County | 27 | 1956 | Low | Not Rated |
| White Ranch Dam Fall River County | 16 | 1937 | Low | Not Rated |
| White Ranch Perkins County | 21 | 1958 | Low | Not Rated |
| White Pond No.1 Harding County | 20 | 1952 | Low | Not Rated |
| White Hill Dam Perkins County | 23 | 1930 | Low | Not Rated |
| Whisler Number 1 Jones County | 20 | 1953 | Low | Not Rated |
| W. Grueb Meade County | 21 | 1951 | Low | Not Rated |
| W.F. Collins Dewey County | 19 | 1937 | Low | Not Rated |
| West Weta 91 (Nid) Jackson County | 24 | 1964 | Low | Not Rated |
| West Butte Harding County | 17 | 1955 | Low | Not Rated |
| Wesley Beaman Walworth County | 28 | 1954 | Low | Not Rated |
| Wesley Beaman Walworth County | 22 | 1952 | Low | Not Rated |
| Werdel West Dam Hand County | 40 | 2008 | Low | Not Rated |
| Werdel East Dam Hand County | 28 | 2008 | Low | Not Rated |
| Wendell Gilman Lyman County | 26 | 1961 | Low | Not Rated |
| Wells Dam Brule County | 30 | 1935 | Low | Not Rated |
| Weller No.1 Jackson County | 17 | 1948 | Low | Not Rated |
| Weisner Dam Buffalo County | 25 | 1951 | Low | Not Rated |
| Wedean Number 3 Jones County | 27 | 1954 | Low | Not Rated |
| Wedean Number 2 Jones County | 27 | 1954 | Low | Not Rated |
| Wedean Number 1 Jones County | 32 | 1959 | Low | Not Rated |
| Wd Crockett Perkins County | 19 | 1949 | Low | Not Rated |
| W. Day Sully County | 16 | 1945 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.