Grade Separated Service Roadway A3/A4 at Chicago O'Hare International Airport

The City of Chicago Department of Aviation is requesting bids for the Grade Separated Service Roadway A3/A4 construction project at Chicago O'Hare International Airport, with proposals due October 14, 2026. The work encompasses a grade-separated structure for future Aircraft Taxilanes A3/A4 over an existing Airside Service Road, including a depressed roadway with retaining walls, utility installation and demolition, stormwater management infrastructure with a pump station, airfield and roadway lighting, fire protection and electrical systems, security monitoring systems, erosion control, and site restoration.

The contractor must furnish all labor, materials, equipment, transportation, and services necessary to complete the work to the City's satisfaction and acceptance. The scope includes demolition of existing taxiway and service road pavements, existing utilities, and airfield electrical elements; installation of water mains, ductbanks, underdrains, and storm sewers; installation of airfield lighting, signage, and traffic signal conduits; and final grading, topsoiling, seeding, and mulching. Work is performed at an active international airport and requires coordination with ongoing airport operations while maintaining adherence to specialized airfield construction standards and security protocols.

The scope of work document is available as an attachment (city of chicago grade separated service roadway chicago o_hare 77313.pdf, 196 MB). No contract value, contract term, set-aside, preference program, or evaluation criteria are specified in the available posting materials.