Scottish Trunk Road Network Management Contract - South East Unit

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 subcontractor to design, supply, install and move (as required) a temporary access platform, carry out blasting, steelwork repair, welding and painting. 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 2 of the refurbishment works include part of the South Suspended Side Span on the central grillage over around ~160m. SubContractors must have demonstrable experience of similar technically complicated works and be sector scheme approved to NHSS 19A & 20, BS EN 1090 Execution Class 3.