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ENLOE DAM

RESERVOIR LEVELS
Rock Dam Similkameen River
May 11, 2025


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Enloe Dam, located on the Similkameen River in Oroville, Washington, was completed in 1920 and stands at a structural height of 57 feet, with a hydraulic height of 63 feet. The dam serves primarily for recreational purposes, offering a surface area of 2400 acres and a drainage area of 3590 acres. Enloe Dam is a concrete structure with a core type of Multi-Arch and rests on a rock foundation. Despite its age, the dam is in fair condition as of the last assessment in June 2020.

With a maximum storage capacity of 2400 acre-feet and a maximum discharge rate of 46,000 cubic feet per second, Enloe Dam plays a crucial role in water resource management in the region. However, due to its high hazard potential, the dam is closely regulated by the Washington Department of Ecology, with state permitting, inspection, and enforcement measures in place. Although the last inspection took place in May 1986, the dam undergoes regular assessments every 5 years to ensure its structural integrity and safety for surrounding communities.

Enloe Dam is situated in a picturesque setting and offers opportunities for outdoor recreation, making it a popular destination for water resource and climate enthusiasts. The dam's location in Okanogan County, Washington, provides a serene backdrop for activities such as boating, fishing, and hiking. As efforts continue to maintain the dam's safety and functionality, Enloe Dam remains a key feature in the region's water infrastructure, serving both practical and recreational purposes for residents and visitors alike.

Year_Completed 1920
River_Or_Stream Similkameen River
Dam_Length 315
Primary_Dam_Type Concrete
Surface_Area 2400
Hydraulic_Height 63
Drainage_Area 3590
Nid_Storage 2400
Structural_Height 57
Hazard_Potential High
Foundations Rock
Nid_Height 63
       

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