Skookumchuck Reservoir Report
Last Updated: December 15, 2025
Skookumchuck, a privately owned hydroelectric facility located in Bucoda, Washington, harnesses the power of the Skookumchuck River for energy production.
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Summary
Built in 1970, this Earth dam stands at a height of 160 feet and has a storage capacity of 35,000 acre-feet. With a surface area of 540 acres and a drainage area of 62 square miles, Skookumchuck plays a crucial role in meeting water supply needs and supporting fish and wildlife habitats in the region.
Managed by the Federal Energy Regulatory Commission, Skookumchuck's spillway, with a width of 130 feet, ensures controlled water release during periods of high discharge, minimizing the risk of flooding in the surrounding area. Despite being classified as having a high hazard potential, the facility's moderate risk assessment indicates that appropriate risk management measures are in place. While the condition assessment is currently unavailable, regular inspections and emergency action plans are in place to ensure the safety and reliability of the dam.
For water resource and climate enthusiasts, Skookumchuck serves as a prime example of sustainable energy production and water management practices. Its innovative design and operational effectiveness highlight the importance of balancing economic development with environmental conservation. As a key player in the region's water infrastructure, Skookumchuck continues to play a vital role in meeting the growing energy demands while protecting the natural ecosystem of the Skookumchuck River.
Year Completed |
1970 |
Dam Length |
1340 |
Dam Height |
160 |
River Or Stream |
Skookumchuck River |
Primary Dam Type |
Earth |
Surface Area |
540 |
Hydraulic Height |
140 |
Drainage Area |
62 |
Nid Storage |
35000 |
Structural Height |
160 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
160 |
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.
Skookumchuck