Sunset Lake Reservoir Report
Nearby: Deer Lake Oknoname 113032
Last Updated: December 16, 2025
Sunset Lake, located in Osage, Oklahoma, is a privately owned water resource managed by the Oklahoma Water Resources Board (OWRB).
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Summary
Built in 1950, this earth dam stands at a height of 30 feet, with a storage capacity of 770 acre-feet and a surface area of 72 acres. The primary purpose of Sunset Lake is for recreation, offering opportunities for fishing, boating, and other outdoor activities in a picturesque setting.
Despite its low hazard potential, Sunset Lake is classified as having a very high risk assessment due to its location on Rock Creek and the potential for high discharge during heavy rainfall events. The controlled spillway and valve outlet gate help manage water levels and ensure the safety of the dam structure. Although the dam is not currently rated for condition, regular inspections are conducted every five years to monitor its stability and functionality.
With its scenic surroundings and recreational opportunities, Sunset Lake serves as a valuable resource for the community of Okesa. As climate change impacts continue to affect water resources, the management and maintenance of dams like Sunset Lake are crucial for ensuring the safety and sustainability of these important water bodies for future generations.
Year Completed |
1950 |
Dam Length |
262 |
Dam Height |
30 |
River Or Stream |
ROCK CREEK |
Primary Dam Type |
Earth |
Surface Area |
72 |
Hydraulic Height |
30 |
Nid Storage |
770 |
Structural Height |
30 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Caney River Above Coon Creek At Bartlesville
|
66cfs |
Caney R Nr Elgin
|
33cfs |
Bird Creek At Avant
|
7cfs |
Hominy Creek Near Hominy
|
2cfs |
Caney River Near Ramona
|
51cfs |
Arkansas River At Ralston
|
4230cfs |
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.
Sunset Lake