city of chicago grade separated service roadway chicago o_hare 77313.pdf

This is a Scope of Work document for the City of Chicago Department of Aviation regarding the Grade Separated Service Roadway A3/A4 construction project at Chicago O'Hare International Airport. The project encompasses the complete furnishing of labor, materials, equipment, transportation, and services necessary to construct a grade separated structure for future Aircraft Taxilanes A3/A4 over an existing Airside Service Road. The scope of work includes construction of a depressed roadway with associated retaining walls, demolition of existing taxiway and service road pavements, installation of utilities including water mains and ductbanks, installation of underdrains and storm sewers with a stormwater pump station, installation of airfield lighting and signage, fire protection systems, electrical systems, roadway lighting, traffic signal conduits, security monitoring systems, erosion control devices, pavement markings, and site grading with topsoiling, seeding, and mulching.

The document specifies that all work must be performed to the complete satisfaction, approval, and acceptance of the City. The project requires contractors to manage complex airport operations including the demolition of existing utilities and airfield electrical elements while maintaining security measures throughout construction. Bidders must be prepared to address the unique challenges associated with working at an active international airport, including coordination with ongoing airport operations and adherence to specialized airfield construction standards and safety protocols.