Traffic Advisories

Several exciting building and renovation projects are occurring on our campus. Project teams are coordinating their construction plans in order to expedite each project while keeping the safety of faculty, staff, students, construction workers and the public a top priority.

Put Safety First  – Please be mindful of all construction-related signage as well as fenced or barricaded areas.  These are placed for your safety and to keep you clear of construction activity.
Many of these projects impact the nearby streets, roadways and parking areas. This page is intended to inform employees, students and visitors about changes in vehicle and pedestrian traffic patterns near the construction areas. For questions about a specific project, please view the project site or call our U-M Construction Management Information line at 734-615-8440.

For more information on City of Ann Arbor street closures, please visit

Current Traffic Advisories

Central Campus

  • South University Avenue Lane Closures: March-Fall

    March 01, 2020 - September 01, 2020

    Anticipated to begin in early March and last through the late fall, lane closures will be in effect on South University Avenue between East University Avenue and South State Street as part of a joint U-M and City of Ann Arbor South University Avenue infrastructure and utility upgrades project. Emergency access and local delivery access to loading docks will be maintained. Northern sidewalk closures will be in effect and pedestrian detours will be posted in the field.  The southern sidewalk will remain open throughout the course of the project with the exception of some short, intermittent, spot closures for excavation activities. Additional information will be shared in upcoming traffic updates as the exact timing and areas of construction and impacts are determined.

    Details on U-M and AAATA bus route detours can be found at and

    Additional information about events and other City of Ann Arbor traffic updates can be found at

    U-M Traffic Update

Medical Center Campus

  • Catherine Street Lane Closures (February 27-Fall)

    February 27, 2020 - September 01, 2020

    Expected to begin on Thursday, February 27, and last into the fall, the northernmost lane on Catherine Street between Zina Pitcher Place and Glen Avenue will be closed for Catherine Street tunnel utility and maintenance upgrades. Two lanes of westbound traffic will be maintained. Pedestrian traffic will be maintained on the south side of Catherine Street and the crosswalk on Catherine Street at Zina Pitcher Place will remain open for access to the Buhl Research Center and the Taubman Health Sciences Library.

    U-M Traffic Update