Dams in Lawrence County, South Dakota
11Total Dams
4High Hazard
3Significant
Dam Safety in Lawrence County, South Dakota
Lawrence County has 11 dams tracked in the National Inventory of Dams. Of these, 4 are classified as high hazard — meaning failure would probably cause loss of human life. Another 3 carry a significant hazard classification.
The average dam in Lawrence County is 62 years old. The most common purpose is recreation. The tallest dam is Grizzly Gulch Tailings Dam at 380 ft.
Explore more: Oldest dams in South Dakota · Tallest dams · High risk dams · Largest reservoirs
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Grizzly Gulch Tailings Dam | High | Satisfactory | 380 | Tailings | 1998 |
| Iron Cr Lake | High | Not Rated | 41 | Recreation | 1937 |
| Dalton Lake | High | Not Rated | 24 | Recreation | 1974 |
| Rod & Gun | High | Not Rated | 20 | Recreation | |
| Roubaix Lake | Significant | Not Rated | 25 | Recreation | 1936 |
| Strawberry | Significant | Not Rated | 13 | Recreation | 1936 |
| Hanna | Significant | Not Rated | 12 | Recreation | |
| Richmond Hill | Low | 79 | Flood Risk Reduction | 1988 | |
| Bh Rc&d Grade Structure Bh Ca-305.3-la | Low | 50 | Flood Risk Reduction | 1976 | |
| Spearfish Valley Ranch | Low | 32 | Irrigation | 1968 | |
| Glen Baker Dam | Low | 25 | Irrigation | 1962 |