Oknoname 30249 Reservoir Report
Last Updated: December 6, 2025
Oknoname 30249, located in Custer, Oklahoma, is a privately owned earth dam designed by USDA NRCS in 2009.
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Summary
Standing at a height of 29.5 feet and with a storage capacity of 48.95 acre-feet, this dam serves as a vital structure for water resource management in the area. It sits on a tributary to the Washita River, contributing to the overall hydraulic system in the region. The dam's primary purpose is listed as "Other," indicating its multifunctional role in water conservation and flood control efforts.
Despite its low hazard potential, Oknoname 30249 is subject to state regulation and inspection by the OWRB. The dam has a controlled spillway and a maximum discharge capacity of 63.8 cubic feet per second, ensuring proper water release during heavy rainfall events. The risk assessment for this dam is deemed "Very High (1)," highlighting the importance of ongoing monitoring and maintenance to mitigate potential safety concerns. While the condition assessment is currently listed as "Not Rated," the dam's last inspection in 2011 indicates a regular inspection schedule to ensure its structural integrity and operational efficiency. As a crucial component of the local water infrastructure, Oknoname 30249 plays a key role in water resource management and climate resilience efforts in the region.
Year Completed |
2009 |
Dam Length |
450 |
Dam Height |
29.5 |
River Or Stream |
TRIB TO WASHITA |
Primary Dam Type |
Earth |
Surface Area |
1.75 |
Hydraulic Height |
26 |
Drainage Area |
0.6 |
Nid Storage |
48.95 |
Structural Height |
33 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Nid Height |
33 |
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 30249