How to bid on the Bonneville Lock 1 bridge replacement for the Department of the Army

What the Army Corps is buying

The U.S. Army Corps of Engineers is seeking a contractor to replace the Navigation Lock 1 bridge at Bonneville Lock and Dam in Cascade Locks, Oregon. The work includes a new steel-girder bridge and approach roads, plus partial demolition of the existing bridge.

Access to the project must remain open during construction, which may require phased work. The work also involves lead and asbestos removal and must follow environmental and seasonal restrictions.

Closing date and amendments

The RFP closes October 29, 2026, at 3:00 PM ET. The solicitation period was extended from October 8 to October 29.

The October 20 amendment edits the traffic control plan requirements and the as-built drawings attachment. Earlier amendments also changed specifications and drawings. Review the current solicitation and every amendment before preparing your response.

Who this opportunity may suit

This opportunity is relevant to construction firms equipped to deliver bridge replacement and approach-road work, including demolition and work that must keep project access open during construction.

Firms should assess their ability to address the stated lead and asbestos removal, environmental restrictions, seasonal work windows, and the solicitation’s technical requirements.

How to access the solicitation

On the portal, click “View original source” to open the opportunity. If the first click takes you to the portal homepage, click it again to go to the bid.

A free account may be needed to view documents, though some bids can be viewed without one. Use the solicitation and its amendments to confirm the response instructions and required materials.

Prepare a careful construction response

Read the specifications, drawings, and amendments together, and check that you are working from the latest versions. Pay particular attention to the revised traffic control plan, updated drawings, quality-control provisions, and construction management platform requirements.

Build your work plan around maintaining access, sequencing construction, and meeting applicable environmental and seasonal restrictions. Make sure your response addresses each solicitation requirement clearly and consistently.

Allow time to check forms, attachments, pricing, and submission instructions before the deadline. If planning to attend the site visit, note that attendees must be U.S. citizens with accepted identification.