The first official bridge lift took place at 8:00 a.m.
Each spring, the City lifts a total of 27 movable bridges over the Chicago River to allow sailboats and other recreational ships to make their annual trip from winter storage yards to the waters of Lake Michigan.
The boat runs are scheduled to occur every Wednesday at 9:30 a.m. and every Saturday at 8 a.m. through June 29.