Cedar Creek Dam Reservoir Report
Nearby: Lacreek Dam No. 7 Lacreek Dam No. 8
Last Updated: December 13, 2025
Cedar Creek Dam, located in Bennett, South Dakota, was completed in 1989 and stands at a height of 27 feet, with a storage capacity of 168 acre-feet.
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Summary
Situated on Cedar Creek, this earth dam serves as a vital structure for water resource management in the region, with a maximum discharge capacity of 450 cubic feet per second. The dam's primary purpose is to regulate water flow and provide flood control, contributing to the overall water management efforts in the area.
Owned and regulated by a private entity, Cedar Creek Dam is subject to state oversight by the South Dakota Department of Environment and Natural Resources (DENR). While the dam is rated as having a low hazard potential and a moderate risk assessment, its condition is currently not rated. With its uncontrolled spillway and moderate risk level, the dam serves as a crucial component in the region's water infrastructure, highlighting the importance of ongoing monitoring and maintenance to ensure its continued effectiveness in water resource management and climate resilience efforts.
Year Completed |
1989 |
Dam Length |
200 |
Dam Height |
27 |
River Or Stream |
CEDAR CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
168 |
Hazard Potential |
Low |
Nid Height |
27 |
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.
Cedar Creek Dam