Baker Lake At Upper Baker Dam Near Concrete Reservoir Report

Last Updated: December 13, 2025

Baker Lake is a reservoir located at Upper Baker Dam near Concrete, WA in Washington State.


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Summary

It was created in 1959 as a part of the Baker River Hydroelectric Project, which generates electricity for Seattle and surrounding areas. The dam is over 300 feet tall, and the lake can hold over 80,000 acre-feet of water. The Baker River is a major tributary of the Skagit River and is fed by snowmelt from the North Cascades Mountains. The lake is also fed by several smaller tributaries and has a surface area of over 2,800 acres. The area surrounding the lake is used for recreational activities such as fishing, boating, camping, and hiking. The lake also provides water for local agriculture and irrigation. The lake's water level is closely monitored, and adjustments are made to ensure it does not exceed safe levels.

Reservoir Details

Lake Or Reservoir Water Surface Elevation Above Navd 1988, Ft 24hr Change -0.32%
Percent of Normal 101%
Minimum 678.19 ft
2011-03-10
Maximum 727.73 ft
2020-07-02
Average 702 ft
Dam_Height 312
Hydraulic_Height 304
Drainage_Area 215
Year_Completed 1959
Nid_Storage 274221
Structural_Height 312
Foundations Rock
Surface_Area 4980
Outlet_Gates Tainter (radial) - 3
River_Or_Stream Baker River
Dam_Length 1200
Hazard_Potential High
Primary_Dam_Type Gravity
Nid_Height 312
       
Seasonal Comparison
Precipitation, Total, In Levels
Lake Or Reservoir Water Surface Elevation Above Navd 1988, Ft Levels

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.