Oknoname 113118 Reservoir Report
Nearby: Oknoname 113119 Oknoname 113120
Last Updated: December 14, 2025
Oknoname 113118 is a privately owned dam located in Osage, Oklahoma, with a primary purpose classified as "Other." The dam, completed in 1940, is an earth-type structure with a height of 28 feet and a hydraulic height of 25 feet.
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Summary
It has a storage capacity of 210 acre-feet and a surface area of 3 acres. The dam is regulated by the Oklahoma Water Resources Board and is subject to state permitting, inspection, and enforcement.
The dam has a controlled spillway with a width of 1 foot and features a single valve outlet gate. Despite being classified as having a low hazard potential, the risk assessment for Oknoname 113118 is rated as very high (1). The dam has not been assigned a Dam Safety Action Classification (DSAC) date, and its condition assessment is listed as "Not Rated." Emergency preparedness measures, such as an Emergency Action Plan (EAP), are not currently in place for the dam.
Located on the TR-DRY CR river/stream, Oknoname 113118 is under the jurisdiction of the Tulsa District of the US Army Corps of Engineers. The dam is situated in a rural area approximately 20 miles from the city of Pawhuska. With its unique design and regulatory oversight, this dam serves as a significant water resource structure in the region for water and climate enthusiasts to explore and study.
Year Completed |
1940 |
Dam Length |
150 |
Dam Height |
28 |
River Or Stream |
TR-DRY CR |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
25 |
Nid Storage |
210 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Caney R Nr Elgin
|
35cfs |
Hominy Creek Near Hominy
|
2cfs |
Caney River Above Coon Creek At Bartlesville
|
63cfs |
Arkansas River At Ralston
|
4040cfs |
Bird Creek At Avant
|
8cfs |
Arkansas R At Arkansas City
|
889cfs |
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 113118