Crummock was a major civils contractor on the Edinburgh tram project, undertaking the construction of 5 sections of the network.
On this section, Crummock were appointed as Principal Contractor to complete the eastern section at York Place. The works were completed in two phases:
Phase 1, which consisted of the enabling works, and Phase 2, which involved construction of the reinforced concrete plinth for the tram track, reinstatement/surfacing of the carriageway and hard landscaping. Phase 1: All enabling works including excavation of existing carriageway, locating, lowering or removal of existing utilities, installation of drainage and ducting, piling works;
Phase 2: All finishing works including reinforced structural concrete slab; main tram track bearing slab, second stage structural concrete; surfacing, hard landscaping.
Working as Principal Contractor to the City of Edinburgh Council (Phase1) and as Principal Contractor to Bilfinger Berger (Phase 2), Crummock was engaged to undertake all works on the final eastern leg for the Edinburgh Trams project at York Place, which is the site of the Edinburgh Tram Eastern Terminus. The enabling works were started whilst we were also working on St Andrew Square, with a view to completing Phase 1 of the works so that we could provide a seamless transfer from a completed St Andrew Square, to immediately start Phase 2 of York Place.
Given the city centre location of the works, extensive traffic and pedestrian management was implemented. Works were phased to allow at least one lane of carriageway to remain open, as the main Bus Station is located off York Place and access had to be kept open for buses at all times during the course of the works. Planing and excavation of the carriageway was carried out, followed by location of existing services, thereafter either lowering or removing all utilities and installing drainage and ducting. Crummock worked in an effective partnership with the Utilities contractor McNicholas to minimise excavations, thereby minimising the level of disruption and inconvenience to the public.
Prior to commencement, Crummock issued a questionnaire to businesses in the area to determine their opening times and delivery schedules. This enabled us to understand their work day and minimise disruption, by for example, scheduling work at a different time. In addition, footway boards were always positioned at doorways, so that pedestrians and wheel chair users always had access to premises.
During the course of the works we uncovered previously installed infrastructure, including concrete slabs, cobbles and rails from the old tram network which had previously operated in Edinburgh. This extra work was accommodated into our programme of works to minimise any delay to completion. Crummock proposed the re-use of all the bituminous planings, underlying type 1 materials, old kerb foundations and slab paving excavated during the course of the works. We discussed this with SEPA and were given permission to proceed with setting up a recycling facility at Shrubhill, Leith to recycle and process all site materials. SEPA and Crummock were delighted that real consideration had been given to sustainability, in that many of the materials that in previous contracts were taken to landfill were processed, crushed and reused by us in other road construction projects. Bases for OLE (Overhead Line Equipment) were constructed and a reinforced concrete plinth for the tram tracks was laid.
A tram stop was constructed and reinstatement of the surface completed this section of the project, ready for handover to the City of Edinburgh Council. Having our own supervisors and operatives who are NRSWA certified and registered with the SWQR, means that we had a suitably qualified member of the site team appointed as TSCO (Traffic Safety Coordination Officer), to act as the traffic safety control person, liaising with the appointed traffic management company and ensuring compliance with Chapter 8.