Otter Lake Diversion Dam

Otter Lake Diversion Dam is a gravity dam located in Baraga County, Michigan, built in 1979. It carries a Low hazard potential classification.

About Otter Lake Diversion Dam

The primary purpose of Otter Lake Diversion Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Houghton Co. Drain Commissioner (local government). It impounds the Sturgeon River.

The dam stands 11 feet tall and stretches 197 feet across, creates a reservoir covering 700 acres, and has a maximum storage capacity of 30,800 acre-feet. Completed in 1979, the structure is 47 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. The most recent inspection on record was 08/08/1989. That was over 36 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMichigan
CountyBaraga
Nearest CityNone
River/StreamSturgeon River
Coordinates46.92306, -88.55167

Physical Characteristics

Dam TypeGravity
NID Height11 ft
Dam Height11 ft
Dam Length197 ft
Year Completed1979 (47 years old)

Storage & Hydraulics

NID Storage30,800 acre-ft
Max Storage30,800 acre-ft
Normal Storage1,120 acre-ft
Surface Area700 acres
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHoughton Co. Drain Commissioner
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection08/08/1989
Emergency Action PlanNot Required

Identifiers

NID IDMI02538
Federal IDMI02538
More InfoState Dam Safety Program

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