Repost from Detroit Department of Transportation:
REMINDER Reroute: On Thursday, Nov. 3, from 9 a.m. to 4 p.m., Woodward Avenue at State Street will be closed for the delivery of the Campus Martius holiday tree and to repaint the Power to the People mural. Detours are as follows:
4-Woodward, inbound: Right on Clifford, to left on Washington, to left on Michigan, to right on Griswold, to left on Larned, to right on Randolph, to the layover on Jefferson at Woodward.
4-Woodward, outbound: From Jefferson to right on Griswold, to left on Michigan, to right on Cass, to right on Bagley, to right on Grand River, to left on Woodward, to continue as normal.
5-Van Dyke/Lafayette, 52-Chene, and 67-Cadillac/Harper, inbound: Left on Randolph, to right on Jefferson, to left on Griswold, to continue as normal. No reroutes are needed for 5-Van Dyke/Lafayette, 52-Chene, and 67-Cadillac/Harper outbound.
Original source can be found here.