Temporary hardcore infill had been placed to prevent total collapse after failure had occurred over a 100m length of the existing masonry West Quay wall in Stranraer. With part of the quay out of service and the adjacent quayside fenced off for safety, this Design & Build contract was to reinstate the quay.
The work involved constructing a new sheet-piled wall in front of the existing masonry face which was tied back into a new sheet-piled anchor wall, a reinforced capping beam incorporating new mooring bollards and compacted infill and final surfacing of the quayside. Other work included constructing reinforced concrete access steps, installing ladder accesses, hand-holds and handrailing and driving a 15m long, 864mm diameter pile with welded top-plate to accommodate the future installation of a crane.
The main sheet piling works comprised 16m long piles driven to rock-head, with 9m long anchor wall piles. Cathodic protection was also installed along the quay face to provide 50year corrosion protection.
The installation of enhanced water supply points and new coin-operated metered power supply points were also included for the use of boat operators and a new sewer outfall complete with flap valve was installed through the quaywall.
The overall project involves the off-site fabrication and installation of a new linkspan structure at Oban Ferry Terminal for client Caledonian Maritime Assets Ltd (CMal).
12th February 2019
GL making a return visit to the Sound of Kerrera off Oban, to undertake substantial repairs to the breakwater which suffered collision damage following an altercation with a workboat earlier this year.
14th December 2018
Michael Matheson MSP and Cabinet Secretary for Transport, Infrastructure and Connectivity covered all his portfolios at the official opening of the new Polmadie Footbridge giving pedestrian and cycle transport access,
18th September 2018