Oknoname 113111 Reservoir Report
Nearby: Pawhuska Lake Dam Oknoname 113112
Last Updated: December 16, 2025
Oknoname 113111, located in Osage, Oklahoma, is a privately owned dam on Clear Creek with a primary purpose categorized as "Other." The dam, completed in 1940, stands at 25 feet tall with a hydraulic height of 20 feet and a length of 100 feet.
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Summary
It has a storage capacity of 200 acre-feet, with a normal storage level of 175 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state jurisdiction, permitting, inspection, and enforcement.
The structure features an earth core with stone foundations and a controlled spillway. It is equipped with one valve outlet gate and has a low hazard potential with a condition assessment that is not rated. The dam poses a very high risk, with a risk assessment rating of 1. Despite its age, Oknoname 113111 has not undergone any modifications in recent years, with the last inspection conducted in September 2011. The dam is not owned or funded by any federal agencies and does not fall under the jurisdiction of the U.S. Army Corps of Engineers.
Water resource and climate enthusiasts will find Oknoname 113111 an intriguing subject for study due to its unique characteristics and risk assessment. The dam's location in Osage, Oklahoma, its design features, regulatory oversight by the OWRB, and the absence of federal involvement make it a compelling case study for understanding the management and maintenance of private dams in the state. Its low hazard potential coupled with a very high risk rating raises questions about the factors contributing to its risk profile and the need for potential risk management measures in the future. Further research and analysis of this dam could provide valuable insights into the intersection of water resource management, climate resilience, and dam safety in Oklahoma.
Year Completed |
1940 |
Dam Length |
100 |
Dam Height |
25 |
River Or Stream |
CLEAR CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
200 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Hominy Creek Near Hominy
|
2cfs |
Bird Creek At Avant
|
7cfs |
Caney River Above Coon Creek At Bartlesville
|
66cfs |
Arkansas River At Ralston
|
4230cfs |
Caney R Nr Elgin
|
33cfs |
Caney River Near Ramona
|
51cfs |
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 113111