Tank Reservoir Report
Last Updated: December 6, 2025
Located in Creek County, Oklahoma, Tank is a privately owned water resource structure that serves a vital role in the state's water management efforts.
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Summary
Constructed in 1950, this earth dam stands at a height of 30 feet and has a storage capacity of 120 acre-feet. With a surface area of 3 acres and a length of 600 feet, Tank plays a crucial role in regulating the flow of the TR-Little Deep Fork Creek.
Managed by the Oklahoma Water Resources Board, Tank is equipped with a controlled spillway and a valve outlet gate to ensure efficient water release and storage. Despite its low hazard potential, Tank is classified as having a very high risk due to its age and potential impact on downstream areas. Regular inspections and maintenance are conducted, with the last inspection taking place in August 2011.
As climate change continues to impact water resources, structures like Tank become increasingly important in ensuring water security for communities in Oklahoma. With its strategic location and regulated operations, Tank stands as a testament to the state's commitment to sustainable water management practices in the face of evolving climate challenges.
Year Completed |
1950 |
Dam Length |
600 |
Dam Height |
30 |
River Or Stream |
TR-LITTLE DEEP FORK CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
30 |
Nid Storage |
120 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Deep Fork Near Beggs
|
141cfs |
Cimarron River Near Ripley
|
544cfs |
Joe Creek At 61st St At Tulsa
|
2cfs |
Arkansas River At Tulsa
|
10300cfs |
Deep Fork At Warwick
|
23cfs |
Little Haikey Creek At 101st St South At Tulsa
|
0cfs |
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.
Tank