Dams in Grant County, South Dakota
13Total Dams
1High Hazard
1Significant
Dam Safety in Grant County, South Dakota
Grant County has 13 dams tracked in the National Inventory of Dams. Of these, 1 are classified as high hazard — meaning failure would probably cause loss of human life. Another 1 carry a significant hazard classification.
The average dam in Grant County is 40 years old. The most common purpose is recreation. The tallest dam is Mud Creek Dt Dam M-1 at 44 ft.
Explore more: Oldest dams in South Dakota · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Farley Lake Dam | High | Fair | 15 | Water Supply | 1910 |
| Rude Hasvold Road Dam | Significant | 32 | Flood Risk Reduction | 1970 | |
| Mud Creek Dt Dam M-1 | Low | 44 | Flood Risk Reduction | 1972 | |
| Blue Cloud Abbey Dam #2 | Low | 40 | Recreation | 1978 | |
| Blue Cloud Abbey Dam #1 | Low | 35 | Recreation | 1951 | |
| Thaden Dam | Low | 30 | Fire Protection, Stock, Or Small Fish Pond | 2018 | |
| Labolt Lake | Low | 25 | Recreation | 1935 | |
| Kane Dam | Low | 20 | Fish and Wildlife Pond | 2008 | |
| Circle Bar Ranch Dam | Low | 20 | Fish and Wildlife Pond | 2013 | |
| O'farrell Dam No. 1 | Low | 20 | Fish and Wildlife Pond | 2005 | |
| O'farrell Dam No. 2 | Low | 20 | Recreation | 2006 | |
| Blooming Valley Dairy Sw Wwp | Low | 16 | Other | 2023 | |
| Blooming Valley Dairy Ne Wwp | Low | 12 | Other | 2023 |