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 1526–1550 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Harrison No.1 Custer County | 23 | 1959 | Low | Not Rated |
| Harris Dam Bennett County | 24 | 1940 | Low | Not Rated |
| Harr Dam Minnehaha County | 28 | 1977 | Low | Not Rated |
| Harold Stirling Stanley County | 25 | 1961 | Low | Not Rated |
| Harold Severson Pennington County | 22 | 1936 | Low | Not Rated |
| Harold Millett Pond No.2 Harding County | 19 | 1958 | Low | Not Rated |
| Harold Millett Pond No.1 Harding County | 16 | 1954 | Low | Not Rated |
| Harold Mikudik Meade County | 20 | 1953 | Low | Not Rated |
| Harold Meyer Corson County | 18 | 1960 | Low | Not Rated |
| Harold Meyer Corson County | 23 | 1950 | Low | Not Rated |
| Harold Meyer Corson County | 11 | 1940 | Low | Not Rated |
| Harold Meyer Corson County | 16 | 1950 | Low | Not Rated |
| Harold Hedstron Perkins County | 26 | 1954 | Low | Not Rated |
| Harold Flatmoe Perkins County | 16 | 1957 | Low | Not Rated |
| Harold Arnold Corson County | 21 | 1950 | Low | Not Rated |
| Harold Arnold Corson County | 17 | 1950 | Low | Not Rated |
| Harms Dam Roberts County | 27 | 2011 | Low | Not Rated |
| Hanson No. 1 Haakon County | 21 | 1994 | Low | Not Rated |
| Hanson Dam No. 2 Haakon County | 21 | 2016 | Low | Not Rated |
| Hanson Dam Harding County | 19 | 1959 | Low | Not Rated |
| Hansen Dam Harding County | 18 | 2000 | Low | Not Rated |
| Hansen Dam Haakon County | 25 | 1990 | Low | Not Rated |
| Hank Ranch Dam Pennington County | 16 | 1943 | Low | Not Rated |
| Hand Dewey County | 17 | 1946 | Low | Not Rated |
| Hamilton Irrigation Dam Haakon County | 24 | 1974 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.