A bright red Manitowoc 888 ring-type crane sitting on a barge in the Chicago River is playing a critical role in the construction of 150 North Riverside tower, whose site is sandwiched on a narrow, 380-ft-long spit of land between the river and a rail corridor.
For general contractor Clark Construction Group, Chicago, and subcontractor Chicago Steel Construction LLC, Merrillville, Ind., the challenge was to construct the foundation and lower floors while installing nearly 200 bulb-tee girders, weighing as much as 90,000 lb, to support the tower's new pedestrian plaza.