The State Street Bridge will close for several hours each day from Monday through Thursday this week, the Chicago Department of Transportation said.
The life-saving mission happened Monday night as firefighters lifted a 16-year-old boy from the shaft of one of the buttresses.
The State Street Bridge over the Chicago River will stay closed, until at least the end of next month.
While moveable bridges over the Chicago River are a city hallmark, their closures are congesting rush-hour traffic on a daily basis.
For months, the ABC7 I-Team has been examining how one of Chicago's century-old bridges crossing the Chicago River are now resulting in a flow of problems, from needed repairs piling up, to a lack of coordination and scheduling when bridges will be closed.
Illinois on Wednesday unveiled its latest six-year, $50.6 billion infrastructure plan for the state's roads, bridges, railways, airports and more.