I-20-4720 Addendum 2.pdf

This document is Addendum No. 2 to the Contract Requirements for Illinois State Toll Highway Authority Contract No. I-20-4720, issued on April 20, 2026. The addendum serves as a Notice of Revision to Contract, modifying the sealed bid solicitation for a construction project on behalf of the Illinois State Toll Highway Authority, a state agency responsible for toll highway operations and maintenance.

The addendum revises the bid opening date from May 8, 2026 to May 29, 2026 and extends the deadline for questions from April 17, 2026 to May 8, 2026. The underlying contract calls for earthwork, grading, construction, haul road construction and maintenance, protection of aviation operation equipment and utilities, mainline and ramp pavement construction, bridge construction, retaining wall construction, building demolition, drainage, erosion and sediment control measures, landscaping, fencing, lighting, traffic signals, Intelligent Transportation Services (ITS) infrastructure, Toll Plaza facilities, overhead sign truss foundations, and maintenance of traffic and miscellaneous work. The work will be performed on the Elgin O'Hare Western Access Tollway (I-490) between Mile Post 3.9 and Mile Post 6.3 in DuPage County and Cook County, Illinois, with a start date of approximately August 17, 2026 and completion date of October 2, 2028. Bidders must be pre-qualified by the Illinois Department of Transportation (IDOT), registered with the Illinois Department of Human Rights with no exceptions, and may form joint ventures limited to no more than three individually IDOT pre-qualified members. A bid guaranty of five percent (5%) of the total bid amount is required. Electronic bids will be received through BidBuy until 10:30 a.m. on May 29, 2026.