beyond
Millennium Park from
Willis Tower In the
Illinois Center development, the main lanes of Columbus Drive are on the middle deck of a three-level structure. That level intersects with the middle levels of
Randolph Street,
Lake Street, South Water Street and
Wacker Drive. All these intersecting streets also exist on the lower and upper levels, except for Lake, which is a
pedestrian mall on the upper level; both of these levels go only from Randolph to Wacker. Level-transition ramps are connected directly to Columbus at the following points: • Southbound down-ramp and northbound up-ramp between the lower and middle levels, between Randolph and Lake; no access to Lake from the up-ramp, which merges just to the north of the middle level intersection • Westbound down-ramps and eastbound up-ramps in the middle of South Water between Columbus and Stetson Avenue, connecting lower and middle levels at Stetson (west end) to the middle and upper levels at Columbus (east end) • Westbound up-ramp from the service (lowest) level at Wacker to a point just west of Stetson, where it joins the middle level of Wacker (which then descends to become the lower deck of the subsequent two-level Wacker) The middle level of Columbus Drive crosses the
Chicago River via the Columbus Avenue Bridge, a
bascule structure built in 1982, and known by many locals as the
Chicago kissing bridge. North of the river, it intersects the upper level of North Water Street and passes over that road's lower level before descending to ground level just before reaching Illinois Street. ==History==