C. Steen Reservoir Report
Nearby: Delbridge Dam G. Boke No.2
Last Updated: December 13, 2025
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Summary
Steen, a privately owned dam located in Ziebach, South Dakota, was completed in 1941 along the TR Cheyenne River. This earth-type dam stands at a height of 15 feet and has a length of 900 feet, providing a storage capacity of 345 acre-feet. Despite its low hazard potential, the dam is regulated and inspected by the South Dakota Department of Environment and Natural Resources to ensure its safety and compliance with state regulations.
Although the dam's condition is currently not rated, it is maintained and monitored for any potential risks or hazards. With a normal storage capacity of 119 acre-feet and a maximum discharge rate of 4800 cubic feet per second, C. Steen plays a crucial role in water resource management in the area. Its presence contributes to flood control measures and supports agricultural activities in the region.
As a valuable asset for water resource management in South Dakota, C. Steen serves as a key infrastructure for the local community. With its strategic location along the TR Cheyenne River, the dam not only provides essential water storage but also helps mitigate potential flooding events. As climate change continues to impact water resources, the proper regulation and maintenance of dams like C. Steen are essential for ensuring the sustainability and resilience of water systems in the region.
Year Completed |
1941 |
Dam Length |
900 |
Dam Height |
15 |
River Or Stream |
TR CHEYENNE |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
345 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Moreau R Near Faith Sd
|
14cfs |
Cheyenne R Near Plainview Sd
|
0cfs |
Belle Fourche River Near Elm Springs
|
17900cfs |
Elk Cr Near Elm Springs Sd
|
0cfs |
Cheyenne River Near Wasta
|
190cfs |
Belle Fourche R Near Sturgis Sd
|
34cfs |
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. Steen