Oknoname 30150 Reservoir Report
Nearby: Violet Lake Robinson Family Farms Llc
Last Updated: January 12, 2026
Oknoname 30150 is a privately owned dam located in Seminole, Oklahoma, designed by USDA NRCS and regulated by OWRB.
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Summary
Completed in 2003, this Earth-type dam stands at a height of 39.78 feet with a hydraulic height of 22.08 feet. With a maximum storage capacity of 39.78 acre-feet and a normal storage capacity of 22.08 acre-feet, this dam serves a primary purpose of 'Other' and is used for various purposes such as irrigation or flood control.
The dam has a surface area of 2.5 acres and a drainage area of 158 square miles, with a controlled spillway type and a spillway width of 1 foot. Despite being rated as having a 'Low' hazard potential, the risk assessment for Oknoname 30150 is deemed 'Very High (1)'. With a valve outlet gate system, the dam has not been inspected since December 2010 and is currently in a 'Not Rated' condition assessment status. It is crucial for water resource and climate enthusiasts to monitor and assess the condition of this dam to ensure the safety and integrity of the structure and surrounding areas.
As one of the many dams in the Tulsa District, Oknoname 30150 plays a vital role in water management and conservation efforts in the region. With its strategic location in SASAKWA, this dam contributes to the overall infrastructure that supports the local community and the ecological balance of the area. By understanding the specifications and regulatory aspects of this dam, enthusiasts can gain insight into the importance of sustainable water resource management and the impact of climate change on these critical structures.
Year Completed |
2003 |
Dam Length |
250 |
Dam Height |
39.78 |
River Or Stream |
NO NAME |
Primary Dam Type |
Earth |
Surface Area |
2.5 |
Hydraulic Height |
22.08 |
Drainage Area |
158 |
Nid Storage |
39.78 |
Structural Height |
30.72 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little River Near Sasakwa
|
24cfs |
Canadian River At Calvin
|
369cfs |
Little River Near Tecumseh
|
11cfs |
North Canadian River Near Wetumka
|
196cfs |
North Canadian River At Shawnee
|
368cfs |
Blue River Near Connerville
|
40cfs |
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 30150