Now owned by Dan Gilbert-owned Jack Entertainment LLC, the Greektown casino is swapping its signs and undergoing a renovation ahead of its official May 1 name change to Jack Detroit Casino-Hotel.

The new digital sign will span the length of the 30-story hotel's roof, according to a news release. The installation will take place from about 7 a.m. to 3 p.m., it said.

The construction work will close the following roads:

• Monroe Avenue, between Beaubien Street and the Chrysler Freeway
• St. Antoine Street, between Lafayette Street and Madison Street
• Macomb Street, between the Chrysler Freeway and St. Antoine Street