Bid guide

How to bid on construction services for California Station, CTA

Chicago Transit Authority (CTA) ILCloses August 12, 2026

What the CTA is buying

The Chicago Transit Authority (CTA) is seeking construction services for the California Station, which is part of the Logan Square Line. This is an Invitation for Bid (IFB), meaning the agency is looking for competitive pricing for the specified work.

This opportunity is relevant for construction firms interested in public transit infrastructure projects in the Chicago area.

Key dates and deadlines

The deadline for submitting bids for this solicitation is August 11, 2026, at 8:00 PM ET. All responses must be submitted by this time.

It is important to complete your submission well before the deadline to account for any technical issues or unexpected delays.

Who this opportunity suits

This opportunity is suitable for construction companies with experience in infrastructure projects, particularly those related to public transportation or railway systems. Firms specializing in station upgrades, renovations, or similar civil construction work would find this relevant.

The solicitation falls under the construction category, indicating a need for contractors capable of performing the physical work described in the bid documents.

How to respond

To access the full solicitation documents and respond, you need to visit the Chicago Transit Authority's procurement portal, which is hosted on Bonfire. Viewing the opportunity details is public and does not require an account.

To download files and submit your bid, you will need to register a free vendor account on the Bonfire portal. Ensure you complete this registration process in advance of the submission deadline.

Tips for a competitive response

For an Invitation for Bid (IFB), your pricing will be a primary factor. Ensure your bid is competitive while accurately reflecting the costs of materials, labor, and any other expenses associated with the project.

Carefully review all specifications and requirements outlined in the solicitation documents. Your bid must demonstrate a clear understanding of the scope of work and your ability to meet all technical and administrative requirements. Double-check that all required forms and documentation are completed accurately and submitted on time through the Bonfire portal.

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 BiddingSimple

This guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from Chicago Transit Authority (CTA); the original posting controls.