Storage Levels Hydrology Weather

Washington Upper Skagit Watershed

Lake Shannon At Concrete

June 5 2023

431 ft

+0.25% today
100% of Normal Normal

Water lake or reservoir water surface elevation above navd 1988, ft levels at Lake Shannon At Concrete are currently 431 ft, about 100% of normal. The average for this time of year is approximately 432.84ft.

Maximum recorded Lake or reservoir water surface elevation above NAVD 1988, ft since record keeping began in 2007 was 2008-06-28 when levels reached 442.12 ft. Lowest recorded Lake or reservoir water surface elevation above NAVD 1988, ft was 2008-03-18 when levels receded to 375.85 ft.

Lake Shannon is a reservoir located in Concrete, Washington, and was created in 1921 by the construction of a hydroelectric dam on the Baker River. The lake was named after James Shannon, one of the influential founders of the Seattle City Light company. Lake Shannon is fed by the Baker River and has a surface area of 179 acres. The lake's water level is controlled by the Baker River Hydroelectric Project, which also provides power to the region. The snowpack in the surrounding mountains, including the North Cascades, provides water to the Baker River, which eventually flows into Lake Shannon. The lake is used for recreational activities such as fishing, boating, and swimming. The area surrounding Lake Shannon also has several agricultural uses, including dairy farming and hay production.

Geolocation -121.741, 48.548
Elevation 443 ft
Lake Or Reservoir Water Surface Elevation Above Navd 1988, Ft 24hr Change 0.25%
Percent of Normal 100%
Minimum 375.85 ft
Maximum 442.12 ft
Average 433 ft
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