Oknoname 113119 Reservoir Report
Nearby: Oknoname 113120 Oknoname 113118
Last Updated: December 13, 2025
Oknoname 113119 is a privately owned dam located in Osage County, Oklahoma, specifically in the city of Pawhuska.
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Summary
Completed in 1940, this Earth-type dam stands at a height of 30 feet and has a hydraulic height of 25 feet. The primary purpose of this structure is categorized as "Other," with a storage capacity of 225 acre-feet and a maximum discharge rate of 300 cubic feet per second.
Managed by the Oklahoma Water Resources Board, this dam is regulated, permitted, inspected, and enforced by the state. With a low hazard potential and a very high risk assessment rating of 1, emergency preparedness measures such as an Emergency Action Plan (EAP) and inundation maps are not currently available. Despite its condition being marked as "Not Rated," the dam has a designated inspection frequency of every 5 years, with the last inspection conducted in February 2003.
In the event of any unforeseen emergencies, the dam has a controlled spillway with a width of 1 foot and is equipped with a single valve outlet gate. Though the risk assessment for this structure is deemed very high, the overall risk management measures and mitigation strategies are currently unspecified. The dam's location along the TR-DRY CR river or stream poses potential environmental and climate challenges, making it crucial for water resource and climate enthusiasts to monitor and assess its condition regularly.
Year Completed |
1940 |
Dam Length |
200 |
Dam Height |
30 |
River Or Stream |
TR-DRY CR |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
225 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Caney R Nr Elgin
|
37cfs |
Hominy Creek Near Hominy
|
2cfs |
Arkansas River At Ralston
|
1470cfs |
Caney River Above Coon Creek At Bartlesville
|
63cfs |
Bird Creek At Avant
|
9cfs |
Arkansas R At Arkansas City
|
1050cfs |
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 113119