C. Peterson Reservoir Report
Nearby: G. Flier M. Scism No.1
Last Updated: December 5, 2025
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Summary
Peterson is a privately owned earth dam located in Custer, South Dakota, along the TR-CHEYENNE river. Built in 1958, this dam stands at a height of 25 feet and has a length of 735 feet, providing a storage capacity of 120 acre-feet. Managed by the Natural Resources Conservation Service, C. Peterson is regulated and inspected by the South Dakota Department of Environment and Natural Resources, ensuring its safety and compliance with state regulations.
Despite being classified as a low hazard potential structure with a condition assessment of "Not Rated," C. Peterson plays a crucial role in water resource management in the region. With a normal storage capacity of 84 acre-feet and a maximum discharge capacity of 840 cubic feet per second, this dam helps regulate water flow and storage for agricultural and environmental purposes. Additionally, its location within the Omaha District of the US Army Corps of Engineers highlights its importance in the overall water resource infrastructure of the area.
While specific details regarding inspections, emergency action plans, and risk assessments are not available for C. Peterson at this time, its presence as a regulated and permitted structure underscores its significance in water management and climate resilience efforts. As a key player in the region's water resource infrastructure, C. Peterson serves as a vital component in ensuring water supply reliability, flood control, and environmental protection in Custer, South Dakota.
Year Completed |
1958 |
Dam Length |
735 |
Dam Height |
25 |
River Or Stream |
TR-CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
120 |
Hazard Potential |
Low |
Nid Height |
25 |
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.
C. Peterson