Bid guide
How to bid on Construction Services for Logan Square Line - California Station for CTA
What the CTA is buying and why it matters
The Chicago Transit Authority (CTA) is looking for construction services for the ASAP Logan Square Line at California Station. This is an Invitation for Bid (IFB), which means the agency is looking for the lowest-priced, responsive, and responsible bid.
For construction firms, this is an opportunity to work on public transit infrastructure in Chicago. Successfully completing projects like this can enhance a firm's portfolio and experience with municipal contracts.
Key dates and what happens at the deadline
The deadline for submitting bids is August 11, 2026, at 6:00 PM ET. All responses must be submitted exactly as directed in the solicitation before this date and time.
Late submissions are typically not accepted for IFBs. It is crucial to allow ample time to prepare and submit your bid to ensure it is received by the deadline.
Who this opportunity suits
This opportunity is suitable for construction firms with experience in infrastructure projects, particularly those involving public transit or urban environments. Firms specializing in general construction, civil engineering, or related trades would be a good fit.
The solicitation is categorized under construction, indicating that firms with relevant NAICS codes and certifications in this sector should consider bidding.
How to respond to this solicitation
To access the full solicitation details and documents, you need to go to the City of Chicago Vendor & Contract Search portal. Once there, review the specification, contact information, and any addenda.
eProcurement bids will link to the city's iSupplier portal for document access. You must submit your bid exactly as the solicitation directs before the response due date.
Practical tips for preparing a competitive response
For an Invitation for Bid (IFB), your primary focus should be on providing the most competitive price while fully meeting all specified requirements. Ensure your bid is complete and addresses every item requested in the solicitation documents.
Carefully review all specifications, drawings, and terms and conditions. Any deviations or omissions could lead to your bid being deemed non-responsive. Double-check all calculations and ensure your pricing is accurate and clearly presented.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from Chicago Transit Authority; the original posting controls.