Oknoname 30220 Reservoir Report
Last Updated: December 6, 2025
Oknoname 30220, located in Pittsburg, Oklahoma, is a privately owned earth dam with a height of 22 feet and a storage capacity of 145.99 acre-feet.
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Summary
The dam, designed by USDA NRCS, serves as a regulatory structure for the unnamed tributary to Chun Creek. Despite being classified as low hazard potential, this dam has a very high risk assessment score of 1, indicating the need for increased monitoring and risk management measures.
The dam features a controlled spillway and a single outlet valve, with a maximum discharge capacity of 23.02 cubic feet per second. The structure spans 590 feet in length and covers a surface area of 14.5 acres, with a drainage area of 0.3 square miles. While the dam has not been rated for its current condition, it undergoes inspections every five years to ensure its structural integrity and public safety.
Owned by a private entity, Oknoname 30220 falls under the regulatory jurisdiction of the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement. The dam poses a significant risk due to its high-risk assessment despite its low hazard potential, highlighting the importance of ongoing monitoring and maintenance to prevent potential dam failures and protect the surrounding community and environment from the impacts of a breach.
Dam Length |
590 |
Dam Height |
22 |
River Or Stream |
UNNAMED TRIB TI CHUN CREEK |
Primary Dam Type |
Earth |
Surface Area |
14.5 |
Hydraulic Height |
20 |
Drainage Area |
0.3 |
Nid Storage |
145.99 |
Structural Height |
26 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Canadian River At Calvin
|
361cfs |
Kiamichi River Near Clayton
|
182cfs |
Muddy Boggy Creek Near Farris
|
9cfs |
Kiamichi River Near Antlers
|
231cfs |
Fourche Maline Near Red Oak
|
1cfs |
Clear Boggy Creek Near Caney
|
423cfs |
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 30220