ISTHA Elgin O’Hare Western Access (IL 390), Lively Boulevard to Thomas Drive (I-14-4645)

DuPage County, IL

This project is part of the Tollway’s 15-year, $12 billion capital program, Move Illinois: The Illinois Tollway Driving the Future. The Tollway has committed $3.1 billion to the Elgin O’Hare Western Access project. Clark Dietz provided construction management engineering services for the construction of new toll highway and bridges; lighting; new signage; installation of new fiber optics and state-of-the-art intelligent transportation systems; installation of two electronic tolling facilities; stormwater BMP facilities; and retaining wall construction.

Construction management services:

Services included on-site inspection, review layout of contract including design changes, materials inspection and testing, documentation, pay estimates, and change orders. Estimated construction cost is $53.5 million.