Temporary Bridge Construction for M25

Balfour Beatty is seeking proposals for the design and construction of a temporary bridge to support a 4-lane carriageway over a railway line as part of the M25 project. The initial idea was to use a conventional steel bridge, but due to high usage and risks, we are considering a precast portal structure instead. We require suppliers to prepare an outline design proposal, detail design, manufacture, supply (either purchase or hire), install, and eventually remove the bridge (with an option for buy-back). This temporary bridge will facilitate the construction of a permanent bridge, allowing traffic to pass under the existing M25. Interested suppliers should complete the attached Eligibility Criteria PQQ, ensuring all sections are fully filled out, as incomplete submissions may not be considered.