SNOFLO



DAWN LAKE DAM

RESERVOIR LEVELS
Rock, Soil Dam Tr-Ennis Creek
April 23, 2025


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Dawn Lake Dam, located in Port Angeles, Washington, is a privately owned structure that serves primarily for recreational purposes. Constructed in 1950, this earth dam with stone core stands at a height of 22 feet and has a storage capacity of 69 acre-feet. Situated on Tr-Ennis Creek, the dam covers a surface area of 8 acres and has a drainage area of 0.43 square miles.

Managed by the Washington Department of Ecology, Dawn Lake Dam has a history of satisfactory condition assessments despite its high hazard potential. The dam has a regular inspection frequency of 5 years, with the last assessment conducted in September 2016. With a maximum discharge capacity of 17 cubic feet per second, the structure is equipped to handle potential flood events in the area.

Derek Kilmer, the Congressional Representative for the 6th District of Washington, oversees the regulatory aspects of Dawn Lake Dam. While the dam has not undergone any significant modifications in recent years, its emergency action plan was last revised in December 2020. Despite its private ownership, the dam plays a crucial role in providing recreational opportunities for the community while also ensuring the safety and protection of the surrounding area from potential hazards.

Year_Completed 1950
River_Or_Stream Tr-Ennis Creek
Primary_Dam_Type Earth
Surface_Area 8
Hydraulic_Height 22
Drainage_Area 0.43
Nid_Storage 69
Structural_Height 22
Hazard_Potential High
Foundations Rock, Soil
Nid_Height 22
       

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