Illinois State Toll Highway Authority Professional Services Bulletin 26-4 Addendum No. 3, 2026
Illinois State Toll Highway Authority | State of IllinoisState · Downers Grove, IL- Due
- Oct 30, 2026
- Deadline passed
- Posted
- Oct 22, 2026
- Primary contact
- Csstaff
- (630) 241-6800
The 30-second brief
Addendum No. 3 to Professional Services Bulletin (PSB) 26-4 issued by the Illinois State Toll Highway Authority for professional engineering services, design corridor management, phase II engineering, and bridge reconstruction projects. This addendum revises Section 3.3.2.3 and provides official responses to questions No. 8-13 regarding project requirements, geotechnical services, topographic surveys, IDOT prequalification rules, and DBE/VOSB compliance. Statements of Interest (SOIs) remain due by October 30, 2026, at 4:30:00 p.m. Central Time via the Trimble Unity Construct process. The bulletin covers multiple tollway corridors including the Reagan Memorial Tollway (I-88), Tri-State Tollway (I-294/I-94), Jane Addams Memorial Tollway (I-90), Illinois Route 390 Tollway (IL 390), and Veterans Memorial Tollway (I-355).
Specialized experience, technical competence, performance history and expertise, cost-saving measures and innovative ideas, ability to complete work in required time, commitment and availability of Key Personnel, proposed method of accomplishing objectives, substantive DBE/VOSB utilization plan
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Summary
Addendum No. 3 to Professional Services Bulletin (PSB) 26-4 issued by the Illinois State Toll Highway Authority for professional engineering services, design corridor management, phase II engineering, and bridge reconstruction projects.
This addendum revises Section 3.3.2.3 and provides official responses to questions No. 8-13 regarding project requirements, geotechnical services, topographic surveys, IDOT prequalification rules, and DBE/VOSB compliance. Statements of Interest (SOIs) remain due by October 30, 2026, at 4:30:00 p.m. Central Time via the Trimble Unity Construct process. The bulletin covers multiple tollway corridors including the Reagan Memorial Tollway (I-88), Tri-State Tollway (I-294/I-94), Jane Addams Memorial Tollway (I-90), Illinois Route 390 Tollway (IL 390), and Veterans Memorial Tollway (I-355).
EVALUATION CRITERIA
8- Specialized experience
- Technical competence
- Performance history and expertise
- Cost-saving measures and innovative ideas
- Ability to complete work in required time
- Commitment and availability of Key Personnel
- Proposed method of accomplishing objectives
- Substantive DBE/VOSB utilization plan
REQUIRED ATTACHMENTS
10- Exhibit A
- Exhibit C
- Exhibit D
- Exhibit E
- Exhibit F
- Exhibit H
- Vendor Disclosures
- Illinois Tollway Standard Business Terms and Conditions
- Illinois Board of Elections Registration document
- DBE and VOSB certification letters
- Submit to
- https://app.e-builder.net/
- Scope location
- Downers Grove, IL
- Reported agency
- Illinois State Toll Highway Authority
Questions about this RFP
How do I respond to this RFP from Illinois State Toll Highway Authority | State of Illinois?
Review the full solicitation document for submission requirements, evaluation criteria, and deadlines. The submission deadline is October 30, 2026. Be sure to include all required attachments as outlined in the solicitation. Submissions should be delivered to: https://app.e-builder.net/. For questions, contact Csstaff.
Can small businesses or minority-owned firms bid on this RFP?
Most government agencies, including Illinois State Toll Highway Authority | State of Illinois in IL, encourage participation from small businesses, minority-owned, women-owned, and disadvantaged business enterprises (MBE/WBE/DBE). Check the full solicitation for any small business participation goals.
What happens after the RFP submission deadline?
After the deadline, the issuing agency reviews all submissions against the stated evaluation criteria. This typically includes a compliance check, technical evaluation, cost analysis, and may involve oral presentations with shortlisted vendors.
Can I ask questions about this solicitation before submitting?
Yes, most solicitations allow vendors to submit questions during a designated period. The primary contact is Csstaff at (630) 241-6800. Questions and answers are typically shared with all prospective bidders.
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What are the evaluation criteria for this solicitation?
This solicitation includes specific evaluation criteria that will be used to score proposals. The criteria include: "Specialized experience, technical competence, performance history and expertise, cost-saving measures and innovative ideas, ability to complete work in required time, commitment and availability of Ke..." Vendors should carefully align their proposals with each criterion to maximize their score.
Where can I find more RFPs from Illinois State Toll Highway Authority | State of Illinois?
All active and historical solicitations from Illinois State Toll Highway Authority | State of Illinois are tracked and searchable. As a state agency, Illinois State Toll Highway Authority | State of Illinois regularly publishes solicitations. Visit the agency profile to see current open bids, past contracts, vendor relationships, and decision-maker contacts.
What documents are required to bid on this RFP?
Requirements vary by solicitation, but common documents include a technical proposal, cost/price proposal, proof of insurance, relevant certifications, past performance references, and any forms specified in the solicitation. This solicitation specifically requires the following attachments: Exhibit A, Exhibit C, Exhibit D, Exhibit E, Exhibit F, Exhibit H, Vendor Disclosures, Illinois Tollway Standard Business Terms and Conditions, Illinois Board of Elections Registration document, DBE an. Review the full document from Illinois State Toll Highway Authority | State of Illinois for the complete list.
What is the scope of this project?
This solicitation defines a specific project scope. The scope covers the following locations: Downers Grove, IL. Review the full solicitation for detailed scope requirements.
