Scs-Beaver Creek Site-12 Reservoir Report
Last Updated: December 5, 2025
SCS-Beaver Creek Site-12, located in Arapaho, Oklahoma, is a state-regulated earth dam designed by USDA NRCS with a primary purpose of flood risk reduction.
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Summary
Completed in 1965, this dam stands at a height of 27 feet and has a hydraulic height of 23 feet, with a maximum storage capacity of 607 acre-feet. The dam spans a length of 758 feet and is equipped with a controlled spillway, as well as a single valve outlet gate.
Despite being classified as having a low hazard potential, SCS-Beaver Creek Site-12 is considered to have a very high risk level, with a risk assessment rating of 1. The dam's condition has not been rated, and its last inspection dates back to January 1980, with an inspection frequency of 5 years. The dam is located on Horse Creek in Custer County, Oklahoma, and falls under the jurisdiction of the Oklahoma Water Resources Board (OWRB). The site is part of the Tulsa District and is managed under state ownership.
Water resource and climate enthusiasts will find SCS-Beaver Creek Site-12 to be an important flood risk reduction infrastructure in the region, with a significant storage capacity and a controlled spillway system. The dam's risk assessment rating and lack of recent condition assessments highlight the need for continued monitoring and maintenance to ensure its effectiveness in mitigating flood impacts. As a state-regulated structure, the OWRB plays a crucial role in overseeing the operation, inspection, and enforcement of regulations related to this dam, emphasizing the importance of state involvement in water resource management and climate resilience efforts.
Year Completed |
1965 |
Dam Length |
758 |
Dam Height |
27 |
River Or Stream |
HORSE CR |
Primary Dam Type |
Earth |
Surface Area |
33 |
Hydraulic Height |
23 |
Nid Storage |
607 |
Structural Height |
27 |
Outlet Gates |
Valve - 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.
Scs-Beaver Creek Site-12