Bid guide
How to bid on Mill Street bridge replacement in Southbridge for MA Dept of Transportation
What the agency is buying
The Massachusetts Department of Transportation is seeking a vendor to replace two bridges on Mill Street in Southbridge. These are bridge S-21-009 over McKinstry Brook and bridge S-21-003 over the Quinebaug River. This project is identified as 608862 and FAP No. STP(BR-OFF)-003S(948)X. This is a construction opportunity for firms specializing in bridge replacement projects.
Key dates and deadlines
This solicitation was published on September 08, 2026. The deadline for submitting your response is October 06, 2026, at 2:00 PM ET. All responses must be received by this time.
Who this opportunity suits
This opportunity is suitable for construction firms with experience in bridge replacement and infrastructure projects. Vendors should be prepared to undertake work involving two distinct bridge structures over waterways. The project falls under the construction category.
How to respond
Do not submit your bid directly through COMMBUYS. To access the full solicitation documents and detailed quoting instructions, you must go to the COMMBUYS portal. You can view the bid details and download documents without needing an account. If you intend to quote electronically, you will need to register for a free COMMBUYS vendor account. Otherwise, follow the specific submission directions provided within the bid documents.
Tips for preparing a competitive response
Carefully review all project specifications and requirements outlined in the solicitation documents. Ensure your proposal clearly addresses the replacement of both bridges and any specific engineering or environmental considerations mentioned. Highlight your firm's experience with similar bridge construction or replacement projects, especially those involving waterways. Pay close attention to the submission instructions to ensure your response is compliant and submitted correctly by the deadline.
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 Department of Transportation; the original posting controls.

