Project: Drainage and Service Enabling Works, Public Access Formation and Security Works.
Client: ESB Ireland.
Contract Responsibilities: Principal Contractor.
Contract: Client Bespoke Contract.
Contract Value: £130,000.
Programme: June 2018 for 8 Weeks.
Carrington Power Station is a Combined Cycle Gas Turbine power station completed in Autumn 2016 and began commercial operation on 18 September 2016.
It is located on the site of a former coal-fired power station, close to the villages of Carrington and Partington in the Greater Manchester Area and 12 km southwest of Manchester City Centre. The Manchester Ship Canal and the River Mersey run alongside the site. Because the station’s site was surrounded by water on two sides, its strata were variable, so all of the buildings’ foundations were piled.
Approximately 7,850 piles were made, all of the reinforced concrete construction, with an average length of 30 feet (9.1 m) and a load of 50 tonnes per pile also due to the original Barton Power Station ground of high-risk asbestos in various areas.
The new station was constructed for £500 million and can generate 884MW of electricity (at a 58% efficiency rate); enough power to supply a million homes. Irish utility company ESB Group purchased an 85% stake in the project from Carlton Power in September 2008. The station is also a combined heat and power plant, capable of providing nearby businesses with steam if they require a supply.
Gallaway Construction Limited was contracted as Principle Contractor to ESB Group to design, manage and construct a new car park, footpaths and fencelines to an area within the existing power station site to provide the contractor with visitor parking. The contaminated land area, including asbestos-based materials, required necessary surveys and remediation as part of the construction works following the provision of the Pre-Construction and Construction Phase Health and Safety Plans.
Working on a live power station brought challenges with working around other trades and operatives within the Power Station. In addition to those, of course, raised by the high-risk nature of the existing ground conditions, namely due to the known presence of high levels of high-risk asbestos from the existing building, which was demolished and originally left as contaminants on the proposed new site of the power station.
Gallaway coordinated with the client ESB energy to a high level of detail to cross-check the existing records of contaminated ground and service records. In addition, geotechnical and asbestos sampling took place to ensure the nature of the subsoils before the commencement of the works. Precontract and Construction Phase Health and Safety Plans were amended, as were the RAMS, to ensure all parties coordinated the works as necessary.