Serenity Lake Dam Reservoir Report
Nearby: Beitey Lake Dam Sowers Reservoir Dam
Last Updated: December 6, 2025
Serenity Lake Dam, also known as Jumpoff Jim Lake Dam, is a privately owned structure located in Valley, Washington.
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Summary
Completed in 1972, this earth dam stands at 17 feet high with a hydraulic height of 17 feet and a structural height of 12 feet. The dam serves primarily for recreational purposes, providing a storage capacity of 270 acre-feet and covering a surface area of 61 acres. Situated on the Tr-Colville River, it plays a vital role in managing the water resources in Stevens County.
Despite its fair condition assessment in 2016, Serenity Lake Dam is classified with a high hazard potential due to its location and the volume of water it holds. The dam is regulated by the Washington Department of Ecology, ensuring that it undergoes regular inspections and meets safety standards. The surrounding area is at risk of inundation in the event of a breach, highlighting the importance of emergency preparedness and risk management measures for this critical infrastructure.
With its picturesque location and significant role in providing recreational opportunities and regulating water flow, Serenity Lake Dam is a notable feature in the landscape of Washington. Climate and water resource enthusiasts can appreciate the engineering and environmental considerations that go into maintaining and managing this essential structure to ensure the safety and well-being of the surrounding community and ecosystem.
Year Completed |
1972 |
Dam Length |
590 |
River Or Stream |
Tr-Colville River |
Primary Dam Type |
Earth |
Surface Area |
61 |
Hydraulic Height |
17 |
Drainage Area |
5.1 |
Nid Storage |
270 |
Structural Height |
12 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Serenity Lake Dam