PSB 26-4 Professional Services Bulletin

The Illinois State Toll Highway Authority (Illinois Tollway) is soliciting Statements of Interest for fourteen professional services contracts covering Phase II engineering and design work across multiple tollway corridors throughout Illinois, with SOIs due by 4:30 p.m. Central Time on October 30, 2026.

The contracts (I-26-20000 through I-26-60000 and RR-26-30000 through RR-26-40000) span roadway reconstruction and bridge rehabilitation on the Reagan Memorial Tollway (I-88), Tri-State Tollway (I-294 and I-94), Jane Addams Memorial Tollway (I-90), Veterans Memorial Tollway (I-355), and Illinois Route 390 Tollway across Ogle, DeKalb, Kane, Cook, DuPage, Lake, and Winnebago counties. All projects include DBE participation goals ranging from 17 to 28 percent and VOSB participation goals of 3 percent; consultants must demonstrate good faith efforts to meet these goals and may request waivers if sufficient commitments cannot be secured.

Prime consultants must be prequalified by IDOT in specified categories including Highways (Freeways), Structures (Highway: Typical or Complex), Environmental Reports, and special services; some categories are allowable through subconsultants. Key personnel must include Illinois-licensed professional engineers and structural engineers. Direct labor multipliers of 2.8 apply to Phase I and II services. Project construction estimates range from Category A ($0–$25 million) to Category F ($150–$200 million). Phase II design services are anticipated to be completed 12 to 24 months after authorization to proceed, with substantial completion dates ranging from 24 to 48 months depending on project scope.

An optional in-person pre-proposal networking meeting will be held October 15, 2026, at the Marriott Chicago Naperville with required registration. Questions are due October 21, 2026, by 4:30 p.m. Central Time via the Trimble Unity Construct SOI Mailbox. Electronic submission is mandatory; paper responses will not be accepted. All respondents must complete the applicable vendor disclosure form and certify compliance with Illinois procurement regulations, including prohibitions on forced labor in apparel procurement.