Fawn Lake Dam

Fawn Lake Dam is an earth dam located in Mason County, Washington, built in 1966. It carries a Low hazard potential classification.

About Fawn Lake Dam

The primary purpose of Fawn Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Fawn Lake Maintenance Commission (private). It impounds the Tr-puget Sound.

The dam stands 36 feet tall and stretches 240 feet across, creates a reservoir covering 56 acres, has a maximum storage capacity of 640 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

At 36 feet, this dam is taller than 83% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWashington
CountyMason
River/StreamTr-puget Sound
Coordinates47.16130, -123.06309

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Length240 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage640 acre-ft
Max Storage640 acre-ft
Normal Storage580 acre-ft
Surface Area56 acres
Drainage Area0 sq mi
Max Discharge80 cfs

Ownership & Safety

PurposeRecreation
OwnerFawn Lake Maintenance Commission
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA00091
Federal IDWA00091
More InfoState Dam Safety Program

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