PTB 188. Job No. C-91-377-14, I-90 (Kennedy Expressway): I-190 to IL 43 (Harlem Ave) & IL 72 / Bryn Mawr Ave: West of IL 171 (Cumberland Ave) to IL 43 (Harlem Ave) – Add Auxiliary Lanes, Phase III Project, Cook County, Region One/District One.
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Project Description
Project Scope
Phase III, Construction inspection services are required for construction inspection for the improvement of I-90 (Kennedy Expressway): I-190 to IL 43 (Harlem Ave) & IL 72 / Bryn Mawr Ave: West of IL 171 (Cumberland Ave) to IL 43 (Harlem Ave) – Add Auxiliary Lanes. Work included, installation of an auxiliary lane and collector-distributor road, resurfacing, drainage improvements, the installation of lighting, ITS, signing, repairs to existing retaining walls and the construction of 7 new retaining walls along WB I-90 from Cumberland Avenue to Harlem Avenue.
4HD Inc provided engineering services for construction inspection with construction of seven new retaining walls along the expressway create space to add a new lane along 2.3 miles of roadway within a tight urban corridor. The reconstruction of ramps for three expressway interchanges alters their alignments to create smooth connections to the interstate, maintaining safe traffic flow at entrances and exits.
Besides inspecting the reconstruction and widening of the roadway as well as lighting, signing, and sign s structure upgrades, our firm inspected the installation of a new storm sewer system along I-90 to ensure it will effectively manage runoff and prevent roadway flooding.
The successful reconstruction of westbound I-90 sets the stage for a major effort to double the capacity of Interstate 190, which connects to I-90, in order to significantly improve access to O’Hare over the coming years.