As part of the O’Hare 21 program, several improvements were made to the Lower Level Roadway at O’Hare International Airport, including sidewalk reconstruction, enhancements to pedestrian paths (including ADA accessibility), and pavement replacement. Project scope also included installation of a new water main, new fire hydrants, and a new electric ductbank, as well as modification of the existing storm sewer system.
Sine Qua Non | Absolutely Essential