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 1701–1725 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Harms Dam Roberts County | 27 | 2011 | Low | Not Rated |
| Hanson Pond Brown County | 15 | 1910 | Significant | 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 |
| Hanna Lawrence County | 12 | — | Significant | 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 |
| Hamill Dam Tripp County | 21 | 1933 | Low | Not Rated |
| Hamak Faulk County | 28 | 1938 | Low | Not Rated |
| Halverson Dam Lyman County | 17 | 2004 | Low | Not Rated |
| Halligan #1 Jones County | 31 | 1976 | Low | Not Rated |
| Hale 1 Meade County | 13 | 1940 | Significant | Not Rated |
| Hald Ranch Pond Fall River County | 16 | 1955 | Low | Not Rated |
| Haivala #2 Harding County | 16 | 1951 | Low | Not Rated |
| Haivala #1 Harding County | 20 | 1951 | Low | Not Rated |
| Haines Dam No. 2 Meade County | 13 | 2000 | Low | Not Rated |
| Haines Dam No. 1 Meade County | 16 | 2000 | Low | Not Rated |
| Hafner Duck Lake Harding County | 19 | 1957 | Low | Not Rated |
| Hafner Dam Lyman County | 12 | 1937 | Low | Not Rated |
| G. Welter Meade County | 17 | 1945 | Low | Not Rated |
| Gutzman Lake County | 28 | 1970 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.