I-25-4768 Addendum 2.pdf

This is Addendum No. 2 to Contract I-25-4768 issued by the Illinois State Toll Highway Authority on March 11, 2026. The addendum provides notice of revisions to contract requirements for the Elgin O'Hare Western Access (I-490) Grading and Drainage Improvements project located between Beeline Drive and Supreme Drive at Milepost 3.0 to Milepost 4.0. The contract documents include revised special provisions, updated contract drawings, newly available geotechnical and construction safety reports, pre-bid meeting minutes from February 26, 2026, and responses to questions submitted by plan holders. Electronic bidding will occur through BidBuy with proposals due by 10:30 A.M. on March 19, 2026.

The project incorporates advance site improvements for the Western Landside Reserve Area along Tollway I-490, including relocation of the airport's perimeter road and Air Operations Area (AOA) security fence, initial grading and earthwork operations, stormwater management infrastructure, erosion and sediment control measures, signing and pavement marking, landscaping, and associated appurtenant work. Key compliance requirements include a 26.0% Disadvantaged Business Enterprise (DBE) goal, 2.0% Veteran-Owned Small Business Program (VOSB) goal, and Equal Employment Opportunity standards requiring 19.6% minority and 6.9% female workforce participation. The anticipated Notice-to-Proceed is June 15, 2026, with a Substantial Completion Date of August 24, 2027, and Contract Completion Date of September 24, 2027. The contract requires coordination with the Chicago Department of Aviation and FAA due to the project's location on an active airfield, including fence commissioning by TSA and management of perimeter road lane closures requiring flaggers and EOWA contract coordination.