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 801–825 of 2,541
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Greene No. 1 Mellette County | 25 | 1968 | Low | Not Rated |
| Greene No.2 Mellette County | 26 | 1968 | Low | Not Rated |
| Green Valley Jackson County | 18 | 1940 | Low | Not Rated |
| Gregg Dam Todd County | 12 | 2009 | Low | Not Rated |
| Gregg Dam No. 2 Todd County | 15 | 2014 | Low | Not Rated |
| Gregorson No.1 Custer County | 34 | 1973 | Significant | Not Rated |
| G. Renner Campbell County | 26 | 1952 | Low | Not Rated |
| Grimes (Nid) (Aka Weta) Jackson County | 21 | 1938 | Low | Not Rated |
| Grizzly Gulch Tailings Dam Lawrence County | 380 | 1998 | High | Satisfactory |
| Gruenig Dam Brule County | 20 | 1952 | Significant | Not Rated |
| Guericke Hutchinson County | 31 | 1967 | Low | Not Rated |
| Guidinger Dam Butte County | 21 | 1945 | Low | Not Rated |
| Gus Allen 1 Lyman County | 28 | 1955 | Low | Not Rated |
| Gus Allen 2 Lyman County | 28 | 1956 | Low | Not Rated |
| Gustafson Dam Hughes County | 14 | 1930 | Low | Not Rated |
| Gustaue Aman Corson County | 14 | 1938 | Significant | Not Rated |
| Gutzman Lake County | 28 | 1970 | Low | Not Rated |
| G. Welter Meade County | 17 | 1945 | Low | Not Rated |
| Hafner Dam Lyman County | 12 | 1937 | Low | Not Rated |
| Hafner Duck Lake Harding County | 19 | 1957 | Low | Not Rated |
| Haines Dam No. 1 Meade County | 16 | 2000 | Low | Not Rated |
| Haines Dam No. 2 Meade County | 13 | 2000 | Low | Not Rated |
| Haivala #1 Harding County | 20 | 1951 | Low | Not Rated |
| Haivala #2 Harding County | 16 | 1951 | Low | Not Rated |
| Hald Ranch Pond Fall River County | 16 | 1955 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.