Oknoname 30065 Reservoir Report
Last Updated: December 6, 2025
Oknoname 30065, located in Canadian County, Oklahoma, is a privately owned earth dam with a primary purpose classified as "Other." Completed in 1990, this structure stands at a height of 23 feet and has a storage capacity of 93 acre-feet.
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Summary
The dam, constructed with a stone core and soil foundation, regulates the flow of an unnamed tributary to Uncle Johns Creek, within the Tulsa District of the US Army Corps of Engineers.
Despite having a low hazard potential, Oknoname 30065 is considered to have a very high risk level, with a risk assessment rating of 1. The dam is state-regulated by the Oklahoma Water Resources Board (OWRB), with inspection, enforcement, and permitting authority. The condition of the dam is currently not rated, with the last inspection conducted in July 2005. While an Emergency Action Plan (EAP) is yet to be prepared, the structure is equipped with a controlled spillway and a single valve outlet gate.
For water resource and climate enthusiasts, Oknoname 30065 presents an intriguing case study of a privately owned dam in Oklahoma with unique design features and regulatory oversight. With a blend of risk and regulatory considerations, this structure serves as a focal point for discussions on dam safety, emergency preparedness, and the management of water resources in the region.
Year Completed |
1990 |
Dam Height |
23 |
River Or Stream |
UNNAMED TRIB TO UNCLE JOHNS CR |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Drainage Area |
210 |
Nid Storage |
93 |
Structural Height |
23 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
23 |
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.
Oknoname 30065