City of Green Bay issued the following announcement on Dec. 20
The Green Bay Public Works Department is announcing a four-week closure of the Ray Nitschke Memorial Bridge for work on the span locks.
Traffic Impacts
Tuesday, January 4, Closed at 7 a.m.
Monday, January 31, Open around 5 p.m.
Dousman Street will be closed west of the Fox River at Broadway.
Main Street will be closed east of the Fox River at Washington Street.
Detour
Broadway, Walnut Street, and Monroe Avenue.
Access to residences and businesses will be maintained. All closures, detours, and work operations are weather dependent and subject to change. Motorists should anticipate backups and are encouraged to find alternate routes.
Original source can be found here.