A9000 9 Forth Road Bridge - Grillage Refurbishment Phase 3

Tender description

The Forth Road Bridge VRS (also known as grillages/parapets) consists of over 16km of barriers and parapets on the viaducts and suspended spans. The suspended span grillages conform to the geometrical and strength requirements of the containment level appropriate for the bridge carriageways for speeds up to 50mph. VRS investigations found section loss, cracked welds, corrosion, and paint deterioration of steelwork. Impact damage was noted in some locations. All defects found have a detrimental impact to the VRS capacity to resist impacting loading. The entire length of VRS has deteriorated with significant paint and structural defects identified throughout the length of the VRS. BEAR Scotland are looking to appoint a contractor to design, supply, install and move, as required, a temporary access tent and platform, carry out blasting, steelwork repair, welding and painting to the central grillage. The works involve the installation of bespoke temporary access system working beneath the Forth Road Bridge to carry out blasting, steelwork repairs and painting works. Phase 3 of the refurbishment works include a significant portion of the North Side Span on the central grillage to approximately ~300m. Contractors must have demonstrable experience of similar technically complicated works and be sector scheme approved to NHSS 19A & 20, BS EN 1090 Execution Class 3. The estimated value of this project is 1,750,000 GBP.