Lower Eau Claire Lake

Lower Eau Claire Lake is a gravity dam located in Douglas County, Wisconsin, built in 1938. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Lower Eau Claire Lake

The primary purpose of Lower Eau Claire Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Douglas County (local government). It impounds the Eau Claire near Gordon.

The dam stands 12 feet tall and stretches 60 feet across, creates a reservoir covering 802 acres, has a maximum storage capacity of 7,100 acre-feet, and collects water from a drainage area of 109 square miles. Completed in 1938, the structure is well-established, with more than 75 years of service.

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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/16/2020.

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Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyDouglas
Nearest CityGordon
River/StreamEau Claire
Coordinates46.25877, -91.56957

Physical Characteristics

Dam TypeGravity
NID Height12 ft
Dam Height12 ft
Dam Length60 ft
Year Completed1938 (88 years old)

Storage & Hydraulics

NID Storage7,100 acre-ft
Max Storage7,100 acre-ft
Normal Storage3,100 acre-ft
Surface Area802 acres
Drainage Area109 sq mi
Max Discharge2,970 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerDouglas County
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/16/2020
Emergency Action PlanYes

Identifiers

NID IDWI01074
Federal IDWI01074
More InfoState Dam Safety Program

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