Use of pulverised fuel ash by Vinci in replacement of a railway level crossing by a road bridge

The Vinci contract included the demolition and reconstruction of a local road bridge to accommodate the additional width of four rail tracks. A 900m section of railway widening is to be carried out during the works. The project involved significant interface with existing watercourses, including the diversion of a brook and extension of existing culvert systems. The contractor also had to demolish two major structures including redundant cottages and a brick arch bridge over the railway.

Key factors


• The waste from three demolished cottages was recycled for use in the site haul roads.
• The contractors redesigned the entire embankment at Hademore using Pulverised Fuel Ash (PFA), a by-product of the combustion of coal at the power station.
• Bridge opened three months early.

Contractor: Norwest Holst . Client: Network Rail . Consulting engineer: Scott Wilson

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