Little Green Lake Outlet

Little Green Lake Outlet is a gravity dam located in Green Lake County, Wisconsin, built in 1934. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Little Green Lake Outlet

The primary purpose of Little Green Lake Outlet is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Little Green Lake Protection And Rehabilitation District (local government). It impounds the Little Green Lake Outlet.

The dam stands 11 feet tall and stretches 1,000 feet across, creates a reservoir covering 466 acres, has a maximum storage capacity of 2,300 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1934, 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 06/25/2021.

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Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateWisconsin
CountyGreen Lake
Nearest CityNone
River/StreamLittle Green Lake Outlet
Coordinates43.73447, -88.97282

Physical Characteristics

Dam TypeGravity
NID Height11 ft
Dam Height11 ft
Dam Length1,000 ft
Year Completed1934 (92 years old)

Storage & Hydraulics

NID Storage2,300 acre-ft
Max Storage2,300 acre-ft
Normal Storage500 acre-ft
Surface Area466 acres
Drainage Area4 sq mi
Max Discharge75 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerLittle Green Lake Protection and Rehabilitation District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/25/2021
Emergency Action PlanYes

Identifiers

NID IDWI10167
Federal IDWI10167
More InfoState Dam Safety Program

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