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US Army Corps of Engineers

Great Lakes and Ohio River Division Website

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Manistique Harbor, Michigan

Detroit District

Published Jan. 11, 2024

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Manistique Harbor, Michigan is located on the north shore of Lake Michigan, 135 miles northeasterly from Green Bay Harbor, WI, and 220 miles northerly from Milwaukee, WI. The project was authorized by Rivers and Harbors Acts March 3, 1905 and March 2, 1907. The existing project provides for a breakwater protected entrance channel in Lake Michigan, a channel in the Manistique River, and a pier at the river mouth. Project depths are 19 feet in the outer portion of the entrance channel, 18 feet in the inner portion of the entrance channel, and 18 feet in the river channel. The harbor services primarily recreational navigation interests although a petroleum dock exists.

Project Map
Dredging Information

eHydro Website

2023 Manistique Harbor PCS

2022 Manistique Harbor PCS

2021 Manistique Harbor PCS

2020 Manistique Harbor PCS PDF

2020 Manistique Harbor PCS DGN

Manistique Harbor

michigan

Detroit District

Commercial Harbor

Recreational Harbor

harbor of refuge

The most recent appropriations for the Department of War expired at 11:59 p.m. EST on September 30, 2025. Military personnel will continue in a normal duty status without pay until such time as a continuing resolution or appropriations are passed by Congress and signed into law. Civilian personnel not engaged in exempted or excepted activities will be placed in a non-work, non-pay status.