How to bid on Bonneville Lock and Dam - Navigation Lock 1 Bridge Replacement for DEPT of Defense

What the agency is buying

The Department of Defense is seeking a contractor to replace the Navigation Lock 1 bridge at Bonneville Lock and Dam in Cascade Locks, Oregon. This project involves constructing a new single-span steel girder bridge with a concrete deck, approach roads, and concrete abutments.

The work also includes partial demolition of the existing bridge, which must remain open for vehicle access throughout construction. This may require phased work. Additional requirements include lead and asbestos removal, adherence to environmental and seasonal restrictions, and barge crane lifting near a high-voltage power line.

Key dates and deadlines

This solicitation was published on August 27, 2026. All responses must be submitted by September 18, 2026, at 6:00 PM ET. It is important to submit your proposal before this deadline, as late submissions are typically not accepted.

Who this opportunity suits

This opportunity is suitable for construction firms with experience in bridge replacement projects, particularly those involving steel girder construction, concrete work, and complex site logistics. Experience with phased construction, lead and asbestos abatement, and working near active infrastructure and high-voltage power lines will be beneficial. This is a construction category Request for Proposal (RFP).

How to respond

To access the solicitation documents and respond, you need to view the original source on the portal. Click the provided link to open the opportunity. If the first click takes you to the portal's homepage, click the link again to go directly to the bid. You may need a free account to view all documents, though this is not always required.

Practical tips for a competitive response

Carefully review all solicitation documents, including any amendments, to understand the full scope of work and requirements. Pay close attention to the specifications for the new bridge, approach roads, and abutments. Develop a detailed project plan that addresses the requirement for the existing bridge to remain open, potentially outlining a phased construction approach.

Ensure your proposal clearly outlines your experience with similar bridge construction projects, particularly those involving demolition, lead and asbestos removal, and working in sensitive environments or near critical infrastructure. Provide a comprehensive safety plan, especially concerning barge crane operations near the high-voltage power line. Double-check all submission requirements and deadlines to ensure your proposal is compliant and submitted on time.