Slide Reservoir Report
Nearby: Spencer No. 2 Spencer
Last Updated: December 5, 2025
Slide is a privately owned dam located in Edgemont, South Dakota, along the Stockade Beaver Creek.
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Summary
Built in 1961 by Delbert E Robinson, the dam stands at 27 feet in height and stretches 555 feet in length, with a primary purpose of fire protection, stock, or small fish pond. The dam has a low hazard potential and is classified as being in fair condition as of the last assessment in August 2017.
With a maximum storage capacity of 113 acre-feet and a normal storage of 68 acre-feet, Slide serves as a critical water resource for the surrounding area. The dam features an uncontrolled spillway with a width of 5 feet, and is equipped with a single sluice gate for controlled water release. Despite its moderate risk assessment rating, Slide has a history of regular inspections and maintenance, ensuring its continued safety and functionality for the community.
Owned by a private entity, Slide plays a key role in providing fire protection and water storage for the region. With its strategic location and design features, the dam serves as a vital infrastructure for managing water resources and mitigating potential risks associated with flooding. As climate change continues to pose challenges for water management, dams like Slide will play an increasingly important role in ensuring the resilience and sustainability of water systems in Wyoming.
Year Completed |
1961 |
Dam Length |
555 |
Dam Height |
27 |
River Or Stream |
STOCKADE BEAVER CREEK |
Primary Dam Type |
Earth |
Surface Area |
6 |
Hydraulic Height |
22 |
Nid Storage |
113 |
Structural Height |
27 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
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.
Slide