Isle of Arran Distillery, Phase 1 comprised of the construction of three storage and maturation warehouses. Each with a gross internal floor area of 1,000m2 and the associated infrastructure works for the warehouse.
Before BHC Ltd, taking over the site, an investigation into ground conditions took place indicating that the existing levels varied greatly across the proposed development areas and required extensive civils and groundworks to accommodate the development of the warehouse.
Works commenced on site at the beginning of February 2017 and were scheduled for 42 weeks. Given that the encountered levels of bedrock were of a depth between 1.05m and 2.20m and the results from pre-development earthworks indicated that the foundations were to be laid using a combination of conventional techniques and trench fill. As part of the cut and fill exercise, 300mm topsoil was excavated and removed from the site.
Swales and trenches for the access road runoff were to be formed running from the top of the site to the bottom of the site located beside the warehouses. The access road from the site entrance to the first junction was formed in a tarmac finish whereas the junction down to the turning circle was formed using concrete.
Concrete works included the supply and placing of 1000 gauge polythene membrane, the supply and placing of 250mm of C40 grade concrete with 2 layers of A393 mesh. Tarmac works included levelling and compacting the ground and the supply and installation of road kerbing to the edge of the Tarmac. At the joint of the existing road, each layer of Tarmac was feathered back to provide a suitable connection.
The foundation of the warehouse consisted of a re-enforced concrete pad and strip foundation including all associated formwork, re-enforcement and associated sub-base make up the supply. The floor slab consists of 200mm of C40 concrete with a power float finish laid to TR34 FM3 specification.
Each Bonded Warehouse was a Portal Framed Building measuring 25 m x 26 m x 5.8 m to eaves level. All steelwork was shot blasted to SA 2.5 and primed with Intumescent paint to provide Fire Protection.