Talley Dam Reservoir Report
Nearby: W. Reedy Kelly Escott Dam
Last Updated: December 6, 2025
Talley Dam, located in Perkins, South Dakota, is a privately owned earth dam completed in 1950 with a primary purpose that is not specified in the data.
°F
°F
mph
Wind
%
Humidity
Summary
The dam stands at a height of 19 feet and has a storage capacity of 51 acre-feet. It is situated on the TRIB-MOREAU river/stream and is under the regulatory jurisdiction of the South Dakota Department of Environment and Natural Resources (DENR).
Despite its low hazard potential and current "Not Rated" condition assessment, Talley Dam is subject to regular state inspections, permitting, and enforcement measures. It has a maximum discharge capacity of 825 cubic feet per second and a normal storage capacity of 39 acre-feet. The dam's emergency action plan (EAP) status, inundation maps, risk assessment, and risk management measures are not specified in the available data.
Talley Dam, managed by a private owner, plays a crucial role in water resource management and climate resilience in the region. Its strategic location and design contribute to flood control, water supply, and ecosystem protection along the TRIB-MOREAU river/stream. Water resource and climate enthusiasts can appreciate the dam's role in balancing competing demands for water use while maintaining safety and environmental sustainability in the area.
Year Completed |
1950 |
Dam Length |
400 |
Dam Height |
19 |
River Or Stream |
TRIB-MOREAU |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
51 |
Hazard Potential |
Low |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Talley Dam