1343562: Grade Separated Service Roadway A3/A4 at Chicago ORD Int'l Airport

The Illinois Department of Transportation and the City of Chicago are soliciting bids for design and construction of Grade Separated Service Roadway A3/A4 at Chicago O'Hare International Airport, with proposals due October 27, 2026.

The scope encompasses a grade-separated roadway system serving terminals A3 and A4, including pavements, drainage systems, lighting, signage, utility relocations, site preparation, earthwork, structural elements, traffic control measures, and restoration of affected areas. Work must comply with federal and state specifications and proceed concurrent with ongoing airport operations, requiring coordination with multiple stakeholders. The contractor must demonstrate experience with similar airport infrastructure projects and maintain strict quality control standards.

Performance bonds and insurance coverage are required. The contract incorporates prevailing wage standards applicable to Illinois public works projects. Environmental compliance and safety protocols are critical performance requirements. The contract term extends through project completion with potential extension provisions for warranty and maintenance obligations.

Pricing is established through competitive bidding, with cost proposals evaluated against technical qualifications and project schedules. Funding sources include federal grants and local airport revenues; the total project value and payment schedule are specified in the contract terms.