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AS IS common with many major civil engineering projects these days, the council was keen that the green credentials of the Rugeley bypass were impeccable. Given the fact that the whole project was being carried out in the shadow of Rugeley Power Station it would have been almost criminal not to take advantage of one of its otherwise unused by-products in order to improve the sustainability of the scheme.

'We had expressed a specific requirement on contract one to use a granular fly ash (GFA) pavement design. We saw it as an innovative solution for use of recycled materials because it was something we had on our doorstep from the power station, ' says Mr Smith.

The GFA is a mixture of granular material from road planings, pulverised fuel ash from the power station and lime.

'Wrekin were able to supply planings from other structural maintenance contracts that were going on at that time. It has worked exceptionally well. By and large the whole of contract one was GFA pavement, ' says Mr Smith.

The GFA has been very successful and the team are now looking to spread its use wherever possible across the whole of the bypass. The team will also use material won from a flood plain compensation area and PFA from the power station to build the bypass in Cont ract 3, thus reducing the need for impor t of material.