Atoka Reservoir Report
Nearby: Atoka Lake Sub-Penitentiary Lake
Last Updated: December 6, 2025
Atoka, located in Atoka, Oklahoma, is a vital water supply dam with a rich history dating back to its completion in 1957.
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Summary
Designed by C. E. BRETZ, this earth-type dam stands at a towering height of 80 feet and has a storage capacity of 169,485 acre-feet, serving primarily for water supply purposes. With a normal storage capacity of 109,005 acre-feet and a surface area of 5,300 acres, Atoka plays a crucial role in managing water resources in the region.
Managed by the Oklahoma Water Resources Board (OWRB), Atoka is regulated, permitted, inspected, and enforced by state authorities to ensure its structural integrity and safety. The dam features a controlled spillway with a width of 4 feet and is equipped with a valve outlet gate for water release. Despite its high hazard potential, the dam's condition is rated as satisfactory, with regular inspections conducted to monitor its safety and performance. In case of emergencies, preparations such as an Emergency Action Plan (EAP) are in place to mitigate risks and ensure public safety.
In the realm of water resource and climate conservation, Atoka stands as a critical infrastructure supporting water supply needs in the region. With its strategic location and impressive storage capacity, Atoka plays a key role in water management and contributes to the overall resilience of the local water supply system. As climate change continues to pose challenges to water resources, the effective regulation and maintenance of dams like Atoka are essential to ensuring sustainable water management practices for the future.
Year Completed |
1957 |
Dam Length |
1190 |
Dam Height |
80 |
Primary Dam Type |
Earth |
Surface Area |
5300 |
Hydraulic Height |
70 |
Drainage Area |
178 |
Nid Storage |
169485 |
Structural Height |
80 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
80 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Clear Boggy Creek Near Caney
|
423cfs |
Muddy Boggy Creek Near Farris
|
9cfs |
Blue River Near Connerville
|
54cfs |
Kiamichi River Near Antlers
|
231cfs |
Blue River Near Blue
|
58cfs |
Muddy Boggy Creek Near Unger
|
138cfs |
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.
Atoka
Atoka Reservoir Near Stringtown