Oknoname 063030 Reservoir Report
Last Updated: December 6, 2025
Oknoname 063030 is a privately owned earth dam located in Wetumka, Oklahoma, along the TR-Grief Creek.
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Summary
Completed in 1962 for the primary purpose of irrigation, this dam stands at a height of 20 feet and has a length of 3700 feet. It has a storage capacity of 70 acre-feet, with a normal storage level of 32 acre-feet and a surface area of 7 acres.
Despite being classified as having a low hazard potential, Oknoname 063030 is considered to have a very high risk level due to its condition assessment not being rated. The dam features a controlled spillway and one valve outlet gate. Although its last inspection was in August 2011, with an inspection frequency of 5 years, its emergency action plan status and risk management measures are currently unknown. The dam is under state jurisdiction and regulation by the Oklahoma Water Resources Board.
In the realm of water resource management and climate resilience, the data on Oknoname 063030 provides valuable insight into the infrastructure and risk associated with this irrigation dam. As a key component of the water supply system in the area, understanding the condition and risk profile of this dam is crucial for ensuring its continued functionality and safety in the face of changing environmental conditions.
Year Completed |
1962 |
Dam Length |
3700 |
Dam Height |
20 |
River Or Stream |
TR-GRIEF CREEK |
Primary Dam Type |
Earth |
Surface Area |
7 |
Hydraulic Height |
20 |
Nid Storage |
70 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River Near Wetumka
|
209cfs |
Canadian River At Calvin
|
361cfs |
Little River Near Sasakwa
|
12cfs |
North Canadian River At Shawnee
|
177cfs |
Little River Near Tecumseh
|
8cfs |
Deep Fork Near Beggs
|
141cfs |
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 063030