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 901–925 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Herman #14 Jones County | 32 | 1961 | Low | Not Rated |
| Herman #15 Jones County | 41 | 1958 | Low | Not Rated |
| Herman #2 Jones County | 33 | 1971 | Low | Not Rated |
| Herman #3 Jones County | 25 | 1959 | Low | Not Rated |
| Herman #4 Jones County | 30 | 1958 | Low | Not Rated |
| Herman #5 Jones County | 38 | 1959 | Low | Not Rated |
| Herman #6 Jones County | 29 | 1962 | Low | Not Rated |
| Herman #7 Jones County | 49 | 1958 | Low | Not Rated |
| Herman #8 Jones County | 29 | 1961 | Low | Not Rated |
| Herman #9 Jones County | 32 | 1958 | Low | Not Rated |
| Herman Kaubish Dam Perkins County | 23 | 1958 | Low | Not Rated |
| Herman Kaubish Dam Perkins County | 21 | 1960 | Low | Not Rated |
| Herman Moeller Tripp County | 25 | 1961 | Low | Not Rated |
| Herman Number 17 Jones County | 26 | 1958 | Low | Not Rated |
| Herman Number 18 Jones County | 31 | 1953 | Low | Not Rated |
| Herman Number 20 Jones County | 28 | 1960 | Low | Not Rated |
| Herman Van Den Berg Perkins County | 18 | 1953 | Low | Not Rated |
| Herrick Lake Gregory County | 20 | 1937 | Low | Not Rated |
| Herron Dam Ziebach County | 21 | 1939 | Low | Not Rated |
| Hess Pond No.1 Harding County | 15 | 1969 | Low | Not Rated |
| Hett No.1 Harding County | 13 | 1958 | Low | Not Rated |
| Hett No.2 Harding County | 19 | 1949 | Low | Not Rated |
| H. Freeze Meade County | 14 | 1938 | Significant | Not Rated |
| H.G. Horman Dam No.1 Butte County | 17 | 1958 | Low | Not Rated |
| H. Harrison Dewey County | 19 | 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.