Oknoname 109002 Reservoir Report
Nearby: Lowry David C Ten Acre
Last Updated: December 15, 2025
Oknoname 109002 is a privately owned dam located in Harrah, Oklahoma, along the TR-North Canadian River.
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Summary
Built in 1970, this earth dam stands at a height of 15 feet and has a length of 800 feet, providing a storage capacity of 115 acre-feet. The dam serves a primary purpose classified as "Other" and is regulated by the Oklahoma Water Resources Board (OWRB).
Despite being rated with a low hazard potential, Oknoname 109002 is considered to have a very high risk level, with a risk assessment score of 1. The dam features a controlled spillway and one outlet gate, with a maximum discharge capacity of 620 cubic feet per second. The last inspection of the dam was conducted in December 2010, with a scheduled inspection frequency of every 5 years.
Even though the condition assessment is listed as "Not Rated," the dam is equipped to handle emergencies, with emergency action plans (EAP) and inundation maps presumably in place. With its unique design and location, Oknoname 109002 stands as a testament to the importance of proper management and maintenance of water resources in the face of changing climate conditions.
Year Completed |
1970 |
Dam Length |
800 |
Dam Height |
15 |
River Or Stream |
TR-NORTH CANADIAN RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
15 |
Nid Storage |
115 |
Structural Height |
15 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
15 |
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 109002