Oknoname 125005 Reservoir Report
Nearby: Oknoname 125004 Oknoname 125006
Last Updated: December 8, 2025
Oknoname 125005 is a privately owned earth dam located in Harjo, Oklahoma, along the TR-Little River.
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Summary
Built in 1960, this dam stands at a height of 20 feet and has a storage capacity of 122 acre-feet. With a maximum discharge of 1600 cubic feet per second and a controlled spillway, the dam is designed to manage water flow efficiently. Despite its low hazard potential, the risk assessment for this dam is rated as very high (1), indicating the need for careful monitoring and management.
The dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections, with the last one conducted in May 2011. Its primary purpose is categorized as "Other," with a focus on water management and control. The dam's condition assessment is currently listed as "Not Rated," highlighting the need for further evaluation to ensure its structural integrity and safety. With a designated emergency action plan (EAP) status unknown, stakeholders should prioritize updating and implementing risk management measures to mitigate potential hazards and safeguard the surrounding community and environment.
Given its strategic location in Pottawatomie County, Oklahoma, Oknoname 125005 plays a crucial role in water resource management and flood control along the TR-Little River. With the risk assessment indicating a very high risk level, it is imperative for authorities and stakeholders to prioritize the dam's maintenance, monitoring, and emergency preparedness. By staying proactive in risk management and compliance with regulatory standards, the dam can continue to fulfill its essential functions while ensuring the safety and well-being of all those impacted by its operations.
Year Completed |
1960 |
Dam Length |
910 |
Dam Height |
20 |
River Or Stream |
TR-LITTLE RIVER |
Primary Dam Type |
Earth |
Surface Area |
12 |
Hydraulic Height |
20 |
Nid Storage |
122 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
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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.
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