Design and Construction Contractors Used 3D Laser Scans of Tunnels to Facilitate Infrastructural Repairs and Interior Renovations. CHICAGO, IL, 2022-Jun-29 — /Travel PR News/ — Mayor Lori E. Lightfoot and the Chicago Department of Aviation (CDA) announced today (06/27/2022) the reopening of seven renovated pedestrian tunnels beneath the Lower Level Roadway at O’Hare International Airport… Read the full press release