CASTLE LAKE NR MOUNT ST HELENS NR SPIRIT LAKE

RESERVOIR LEVELS
February 7, 2025
2,580 ft 46.25, -122.28


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Castle Lake Debris Dam, located in Kid Valley, Washington, is a Federal-owned structure managed by the USDA Forest Service. Completed in 1980 by the US Army Corps of Engineers, this Earth-type dam stands at a height of 190 feet and spans a length of 2000 feet. With a storage capacity of 19,000 acre-feet and a surface area of 480 acres, the dam serves multiple purposes beyond flood control, making it a vital resource for the region.

Despite being unregulated by the state, the dam's hazard potential is deemed "Undetermined" with a moderate risk assessment. The condition of the dam is currently "Not Rated," and its last inspection dates back to 2011. While the Emergency Action Plan (EAP) status and risk management measures are unclear, the dam's importance in water resource management and climate resilience cannot be understated. With its unique design and critical role in the local ecosystem, Castle Lake Debris Dam stands as a testament to innovation and partnership in safeguarding our water resources.

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0%
Percent of Normal 100%
Minimum 2,577.29 ft
2022-10-16
Maximum 2,580.94 ft
2015-12-10
Average 2,579 ft
Dam_Height 190
Hydraulic_Height 100
Drainage_Area 1.3
Year_Completed 1980
Nid_Storage 19000
Primary_Dam_Type Earth
Surface_Area 480
Hazard_Potential Undetermined
Dam_Length 2000
Nid_Height 190
Reservoir Levels
       

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