Dagger Lake Dam

Dagger Lake Dam is a timber crib dam located in Snohomish County, Washington, built in 1912. It carries a Low hazard potential classification.

About Dagger Lake Dam

The primary purpose of Dagger Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Dhb Enterprises (private). It impounds the Tr-mccoy Creek near Monroe.

The dam stands 10 feet tall and stretches 50 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 400 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1912, the structure is over a century 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.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateWashington
CountySnohomish
Nearest CityMonroe
River/StreamTr-mccoy Creek
Coordinates47.81517, -121.79053

Physical Characteristics

Dam TypeTimber Crib
NID Height10 ft
Dam Length50 ft
Year Completed1912 (114 years old)

Storage & Hydraulics

NID Storage400 acre-ft
Max Storage400 acre-ft
Normal Storage400 acre-ft
Surface Area32 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeRecreation
OwnerDHB Enterprises
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDWA00198
Federal IDWA00198
More InfoState Dam Safety Program

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