Cone Dam, located in Lyman, South Dakota, is a privately owned earth dam on TR.
Wind
Humidity
MEDICINE CREEK with a height of 14 feet and a length of 1055 feet. Completed in 2013, this dam has a storage capacity of 246 acre-feet and a maximum discharge of 1080 cubic feet per second. With a spillway width of 80 feet and a hazard potential rated as low, Cone Dam poses a moderate risk and is not currently rated for its condition assessment.
Managed by the South Dakota Department of Environment and Natural Resources, Cone Dam is regulated, permitted, inspected, and enforced by the state agency. The dam does not have any associated structures or outlet gates, and it does not currently have an emergency action plan in place. Despite the lack of an official condition assessment, Cone Dam is considered to have a moderate risk level based on available data.
Overall, Cone Dam serves as a critical infrastructure for water resource management in the region, providing storage and flood control capabilities for TR. MEDICINE CREEK. With its low hazard potential and moderate risk level, continued monitoring and maintenance of Cone Dam are essential to ensure its long-term safety and effectiveness in mitigating potential climate-related impacts.
Year Completed |
2013 |
Dam Length |
1055 |
Dam Height |
14 |
River Or Stream |
TR. MEDICINE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
14 |
Drainage Area |
3 |
Nid Storage |
246 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
14 |
White R Near Oacoma Sd
|
105cfs |
White River Near White River
|
42cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
Little White R Below White River Sd
|
141cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Little White R Near Rosebud Sd
|
96cfs |