Downtown and U-M Campuses Intermittent temporary road closures of multiple City of Ann Arbor and U-M roads for the 2018 Ann Arbor Marathon

On Sunday, May 20, intermittent temporary road closures will be in place for various City of Ann Arbor and U-M roads for the 2018 Ann Arbor Marathon. Notable closures near campus include one or more lanes of: South State Street, North University Avenue, South University Avenue, Observatory Street, East Medical Center Drive, Nichols Drive, Washington Heights, Tappan Avenue, Monroe Street, Fuller Road, and Geddes Avenue. The event, which consists of a half and full marathon course as well as 5k and 10k courses, is scheduled to begin at 7:30 AM and end at 1:30 PM. Lane closures will begin as early as 3:00 AM. Ann Arbor Police will be present to assist with traffic control at any points in the race route that impede traffic, including emergency and key access routes to the U-M Medical Center.

For more detailed information about this special event relative to street closures and maps of race routes, please visit For information about U-M bus route detours during the event, please visit

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