Hayes Reservoir Report
Last Updated: December 5, 2025
Hayes is a privately-owned earth dam located in Custer, Oklahoma, along the TR-BEAVER CR river or stream.
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Summary
Completed in 1967, this dam stands at a height of 21 feet and has a length of 350 feet, with a storage capacity of 50 acre-feet. It serves a primary purpose of "Other", with a spillway type classified as "Controlled" and a hazard potential rated as "Low". The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement.
Despite its low hazard potential, Hayes has been designated as having a very high risk level (1) in terms of potential impact. The dam has one outlet gate and is primarily constructed with stone as the core material and soil as the foundation. The surrounding area has a surface area of 2 acres, with a normal storage capacity of 20 acre-feet. The dam is under the jurisdiction of the Tulsa District of the US Army Corps of Engineers and is located in the city of ARAPAHO within Custer County, Oklahoma.
While the dam's condition assessment has not been rated, it undergoes inspection every 5 years, with the last inspection conducted in June 2011. Despite its age, Hayes continues to play a vital role in water resource management and climate resilience efforts in the region. Enthusiasts of water resources and climate science will find Hayes to be a fascinating case study in dam infrastructure and risk management in the face of changing environmental conditions.
Year Completed |
1967 |
Dam Length |
350 |
Dam Height |
21 |
River Or Stream |
TR-BEAVER CR |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
21 |
Nid Storage |
50 |
Structural Height |
21 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
21 |
Seasonal Comparison
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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.
Hayes