Paschen Completes IDOT's I-90/94 Ohio Street Work Early
In June, F.H. Paschen began work on the reconstruction and realignment of the ramp pavement and structures that carry westbound Ontario Street traffic to east and westbound I-90/94. Constructed in 1959, over 15,000 vehicles use the ramp on daily basis to travel to and from the Central Business District of the City of Chicago, the Loop, and the River North area of Chicago.
Based on the poor condition of the existing cast-in-place concrete curved box girder bridge, the structure needed to be demolished and replaced by one that is easier and safer to maintain. Due to the high travel rates on this interchange, a design was developed to allow the construction of a new structure adjacent to the existing structure, allowing the project to proceed with staged traffic and the use of detours. The first stage involved the construction of a portion of the new bridge adjacent to the existing structure while traffic continued to utilize the existing bridge. Once that was complete, traffic was shifted onto the newly constructed bridge and demolition and removal of the existing structure was started.
The work to tear down sections of the bridge, drop the concrete pieces onto the Kennedy and haul away the debris was scheduled for a series of tightly choreographed 55-hour periods over three weekends in June. However to the great satisfaction of Chicago drivers, Paschen was able successfully complete the large-scale demolition in just two weekends and avoid the much talked about “Carmageddon” for a third weekend of work.
For time-lapse footage of the demolition, visit the links below: