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 551–575 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| E. Hoffman No. 6 Meade County | 18 | 1954 | Low | Not Rated |
| E. Hoffman No. 7 Meade County | 14 | 1962 | Low | Not Rated |
| E. Hoffman No.8 Meade County | 15 | 1948 | Low | Not Rated |
| E. Hoffman No.9 Meade County | 27 | 1946 | Low | Not Rated |
| E. Hunt Ziebach County | 29 | 1969 | Low | Not Rated |
| Eide No. 1 Gregory County | 37 | 1969 | Low | Not Rated |
| Eide No.3 Gregory County | 43 | 1975 | Low | Not Rated |
| Eilen Wpa Deuel County | 9 | 1989 | Low | Not Rated |
| E.J. Mooney Dam No.1 Meade County | 32 | 1959 | Low | Not Rated |
| Eklund #3 Mellette County | 26 | 1955 | Low | Not Rated |
| Eklund #4 Mellette County | 29 | 1950 | Low | Not Rated |
| Eklund No.5 Mellette County | 24 | 1956 | Low | Not Rated |
| Eldrod Kolb Perkins County | 23 | 1949 | Low | Not Rated |
| Ellery Brockel Campbell County | 30 | 1949 | Low | Not Rated |
| Elmer Olsen Pennington County | 19 | 1940 | Low | Not Rated |
| Emil Schulz Lyman County | 25 | 1972 | Low | Not Rated |
| Emmerich Dam Faulk County | 11 | 2007 | Low | Not Rated |
| E. Mooney Meade County | 18 | 1947 | Low | Not Rated |
| England #2 Mellette County | 23 | 1935 | Low | Not Rated |
| England #3 Mellette County | 23 | 1936 | Low | Not Rated |
| England #4 Mellette County | 23 | 1936 | Low | Not Rated |
| England #4 Mellette County | 28 | 1935 | Low | Not Rated |
| England #5 Mellette County | 18 | 1936 | Low | Not Rated |
| England #5 Mellette County | 18 | 1936 | Low | Not Rated |
| England #6 Mellette County | 20 | 1934 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.