to go Beyond Net Zero Carbon, to Generate Zero Waste and to Positively Impact More than 1 Million People in line with our guiding imperative to “think global, act local”. That is why our social impact plan focusses on putting people and the environment at the centre of everything we do. The works at Dalgety Bay will involve the removal of around 9,000m3 of material from the beach area to be screened, before being replaced. To ensure the material is thoroughly cleansed, 4,500m3 of this material will be removed in 5m2 cells. While the material is removed from the beach, the team will first lay approximately 10,000m2 of geotextile along the shore then cover this with 33,000t of rock armour. The work will take place over two summer periods between April and September in order to protect wading bird species who overwinter at Dalgety Bay.
During the planning of the works, a desktop study was completed to look at how materials would be imported to the site. The use of road wagons was assessed and would have led to around 2,650 round trips over the construction period – around 22 vehicle movement per day. To mitigate disruption to local residents and reduce the projects carbon footprint, the project will instead make use of its coastal locations and utilise barges to deliver material by sea. Each barge is expected to deliver approximately 500t of materials and it is expected that there will be in excess of 100 trips to deliver the rock armour, bed material and precast concrete required. The barges will be floated into the bay at high tide, allowed to sink to the beach as the tide recedes and then be offloaded at low tide on to the beach with materials being moved to worksite adjacent stockpiles.
In addition to the foreshore works, we are also required to demolish and replace existing sailing club slipways and jetty and replace with new structures. To achieve this, Balfour Beatty have set up a pre-casting yard in Inverkeithing to produce the required precast concrete units. Building these structures will involve in the region of 1,900 individual precast sections, varying in size from 3t to 13t in weight. The site in Inverkeithing is located within Cruicks Quarry which has a loading jetty available which we will use to load all precast concrete sections and aggregates to the barges for transport to site. We will also transport most of the plant equipment to site from Burntisland, also by barge. By using the quarry at Inverkeithing, we will reduce disruption to residents and road users, reduce the carbon footprint of the project and provide economic growth for the local community.
June/July 2021 BC
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