Oknoname 051018 Reservoir Report
Last Updated: December 7, 2025
Oknoname 051018 is a privately owned dam located in Tabler, Oklahoma, within the Tulsa District.
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Summary
Completed in 1940, this earth dam stands at a height of 46 feet and has a length of 800 feet, with a storage capacity of 960 acre-feet. It serves as a control structure for TR-SPRING CREEK, providing a normal storage of 50 acre-feet and a maximum discharge of 180 cubic feet per second. Despite being rated as low hazard potential, the dam is under state regulation and inspection by the Oklahoma Water Resources Board (OWRB), with enforcement and permitting in place.
The dam features a stone core and soil foundation, with a controlled spillway and a single valve outlet gate. Although it has not been rated for condition assessment, the risk assessment for Oknoname 051018 is marked as very high (1), indicating potential safety concerns. The dam has not been modified in recent years, and the last inspection took place in February 2001. While an Emergency Action Plan (EAP) is not available for the dam, its risk management measures and inundation maps have not been prepared. Despite its low hazard potential, the dam poses significant risks that should be carefully monitored and managed by state regulatory agencies.
Year Completed |
1940 |
Dam Length |
800 |
Dam Height |
46 |
River Or Stream |
TR-SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
46 |
Nid Storage |
960 |
Structural Height |
46 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
46 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Washita River At Alex
|
243cfs |
Little Washita River East Of Ninnekah
|
19cfs |
North Criner Creek Near Criner
|
1cfs |
Canadian River At Norman
|
211cfs |
Walnut Creek At Purcell
|
31cfs |
Canadian River At Purcell
|
212cfs |
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.
Oknoname 051018