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Inland Route, Michigan

Detroit District
Published Jan. 11, 2024
Tan and blue map drawing of the Inland Route system in Michigan

Map of Michigan's Inland Route system stretching from Little Traverse Bay to Cheboygan River.

The Inland Route in Michigan is a historically significant waterway, offering recreational navigation through a series of lakes and rivers in the northern Lower Peninsula. Authorized by the River and Harbor Act of 1954, the route spans 35 miles from Conway, near Lake Michigan, to Cheboygan on Lake Huron. It includes Crooked and Mullett Lakes, connected by the Crooked and Indian Rivers, along with the navigation lock at Cheboygan.

Key Project Features:
  • A channel 30 feet wide and 5 feet deep
  • Widening at bends for ease of navigation
  • Suitable jetties at the head of the Indian River
  • A lock and weir, added in 1964 to correct a design deficiency

Primarily serving recreational navigation, this waterway connects picturesque areas of Michigan, blending natural beauty with engineered enhancements to support tourism and local boating activities.

Project Condition Surveys

Below are the most recent condition surveys of waterways along the Inland Route. Click the links to view each survey.

Contract Dredging Report

Crooked River Lock Hourly Water Levels

Chick Lock

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