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Sustainable Project of the Year

This category sought the greenest projects of the past 12 months, with entries ranging from canal transformations to electricity substations.

Balfour Beatty, Helix Canal project

Balfour Beatty The Helix Canal

Balfour Beatty’s Helix Canal Project has transformed land near Falkirk into a 350 ha green space for visitors.

A 65 m under-bridge was built to allow the canal under the M9, opening the way for the construction of a landmark sea lock.

The 1,800 tonnes of sheet piles were shipped to Grangemouth, avoiding 44,000 road miles and 355 tonnes of CO2.

In addition, 64 per cent of the contract was spent with local companies.

Baystar Energy Efficient Systems – Roffey Park Institute, 400 kW ground-source heat pump

Baystar Energy Efficient Systems Roffey Park Institute

The focus of the Baystar project was to reduce the carbon footprint and energy spends at the site.

A 400 kW pump was installed to distribute low-energy heat to the different buildings, providing heating and hot water and replacing fossil fuel.

Heating costs have been halved, carbon has been reduced 25 per cent and 600,000 kWh of oil has been displaced.

Erith Contractors – Beckton

Erith Beckton

Erith Contractors’ £2m project saw the team stabilise an underground 1960s gasholder in Beckton, London by injecting 2,900 cu m of cementous grout inside.

The team disposed of or cleaned offsite 1,500 cu m of materials that were not suitable for onsite treatment.

The approach that Erith developed with Parsons Brinkerhoff produced a saving for the client of £2m in excavation costs, relating to more than 16,500 cu m.

Morgan Sindall and ABB – National Grid 400 kV gas insulated switchgear substation

Morgan Sindall and ABB National Grid 400kV gas insulated switchgear substation

Morgan Sindall is developing the infrastructure of the UK’s first Gas Insulated Switchgear substation.

The sustainable project has so far saved 5.1 tonnes of reinforcement and 430 tonnes of concrete from being used by simply changing the concrete mix design, also reducing CO2 by 30 per cent on all concrete structures.

The work has also seen zero excavated waste sent to landfill, equivalent to 7,420 tonnes of material being reused.

Morgan Sindall and Moortown Group – Sellafield accommodation project

Morgan Sindall and Moortown Sellafield accommodation project

Morgan Sindall’s Whitehaven site provides office facilities for 1,000 relocated staff.

The development comprises 108,726 sq ft of office space, at two adjacent town centre sites.

The buildings achieved BREEAM Excellent and are A-rated for energy performance and 94 per cent of the project waste was diverted from landfill.

During the build, £11,400 of materials was donated to community projects and £42,024 was fundraised via local charitable initiatives.

O’Brien Contractors – Project Dove

O'Brien Contractors Project Dove 2

O’Brien Contractors won an £11m civil engineering package to prepare the site for a £200m Nestle construction build in Tutbury.

Due to 2012 being the wettest year on record, O’Brien had to drastically change its programme.

The solution was to use lime stabilisation.

This allowed 40,000 cu m of spoil to be left on site and the on-site stabilisation meant a saving of 21,000 haulage miles, or 15 tonnes of CO2.

Wiehag – Kirkley Mill Health Centre

Wiehag Kirkley Mill

The entire structure of this Weihag building is made from cross-laminated timber and glulam, one of the first health centres like this in the UK.

The timber panels form the walls, floor and roof and allowed the structure to be erected in just five weeks.

Manufactured offsite, disruption was minimal and the only waste created was from packaging.

Weihag’s approach allowed it to obtain BREEAM Excellent.

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