I-25-4768 (I-490) Grading/Drainage Improvements Beeline Dr to Supreme DR MP3.0 to MP4.0

Foundation Mechanics LLC was awarded Contract I-25-4768 by the Illinois State Toll Highway Authority (ISTHA) through competitive sealed bidding on May 14, 2026, with a contract value of $11.138 million. The award covers grading and drainage improvements on the Elgin O'Hare Western Access Tollway (I-490) between Mile Post 3.0 and Mile Post 4.0 in DuPage County, Illinois, specifically the segment between Beeline Drive and Supreme Drive. The work is classified under NIGP Code 74521 (Asphaltic Concrete, Hot Laid Including Bituminous Materials) and is scheduled to commence on June 15, 2026, with substantial completion targeted for August 24, 2027, and final contract completion by September 24, 2029.

The scope of work encompasses earthwork, grading, stockpile construction, detention basin construction, Airport Operation Area security fence and perimeter road relocation, protection of aviation operation equipment and utilities, erosion and sediment control measures, landscaping, drainage improvements, and associated appurtenant work. Foundation Mechanics LLC submitted the lowest responsive and responsible bid among six total bidders. The contract incorporates mandatory Disadvantaged Business Enterprise (DBE) utilization of 26.0 percent, Veteran-Owned Small Business Program (VOSB) utilization of 2.0 percent, and prevailing wage requirements. The awardee committed to utilizing Business Enterprise Program vendors for 42.72 percent of contract value and Veterans Business Program vendors for 5.08 percent. The project requires close coordination with the Chicago Department of Aviation and Federal Aviation Administration due to its location on an active airfield at O'Hare International Airport.