CDOA - Ohare Grade Separation Roadway A3,A4 RFP

Description: Construction of a Grade Separated Structure for future Aircraft Taxilanes A3/A4 over an Airside Service Road. Construction of a Depressed Roadway with Associated Retaining Walls. Installation of Security Monitoring Systems and Associated Equipment and Cabling Installation of Erosion Control Devices and Security Measures Demolition of Existing Taxiway and Service Road Pavements, Demolition of Existing Utilities, and Demolition of Airfield Electrical elements Installation of Utilities, Including but not Limited to Water Main and Ductbanks. Installation of Underdrains, Storm Sewers and Drainage Structures including a Stormwater Pump Station. Paving of Associated Shoulders and Roadways. Installation of Airfield Lighting, Signage Bases and Signing, Fire Protection systems, and Electrical Systems Installation of Roadway Lighting. Installation of Conduits to Incorporate Future Installation of Traffic Signals, Pavement Marking Grading, Topsoiling, Seeding, and Mulching.