Summary
The dam, situated on TR. MEDICINE CREEK, has a storage capacity of 84 acre-feet and a normal storage level of 38 acre-feet. With a low hazard potential and moderate risk assessment, the dam is regulated, inspected, and enforced by the South Dakota Department of Agriculture and Natural Resources, ensuring its safety and compliance with state regulations.
Designed by USDA NRCS, Leichtnam Dam features an uncontrolled spillway with a width of 30 feet. Despite not being rated for condition assessment, the dam has been inspected in October 2005 and is deemed to meet state guidelines for emergency action plans. The dam does not have outlet gates and is not associated with any other structures. Congressman Dusty Johnson represents the area in which the dam is located, offering political oversight and support for its continued operation and maintenance.
Water resource and climate enthusiasts will appreciate Leichtnam Dam for its role in water management and flood control along TR. MEDICINE CREEK. With its strategic location in Lyman, South Dakota, the dam serves as a vital infrastructure for the local community, providing storage capacity and risk management measures to mitigate potential hazards. As a privately owned structure, the dam showcases the collaboration between government agencies and private entities in ensuring the safety and sustainability of water resources in the region.
Year Completed |
2003 |
Dam Length |
595 |
Dam Height |
16 |
River Or Stream |
TR. MEDICINE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
16 |
Nid Storage |
84 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White R Near Oacoma Sd
|
105cfs |
Bad R Near Fort Pierre Sd
|
7cfs |
White River Near White River
|
42cfs |
Little White R Below White River Sd
|
141cfs |
Keya Paha R Near Keyapaha Sd
|
33cfs |
Little White R Near Rosebud Sd
|
96cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Leichtnam Dam