Highway Embankments Maximising Resuse of Soils at Southall Waterside

CGL is currently providing FM Conway with geotechnical and geoenvironmental support on the Western Access scheme, which is part of the Southall Waterside development.

We are providing permanent and temporary works design and construction support for new highway embankments located between two new bridges, which span the Yeading Brook and Grand Union Canal. The new road will connect existing infrastructure to the 88 acre development site in west London. This project is being supported by a team drawn from across CGL’s four offices to provide the right mix of skills to meet the complex challenges involved.

Among other deliverables, CGL has undertaken detailed quantitative risk assessment to enable FM Conway to maximise reuse of site won soils impacted by contamination from adjacent land to construct the scheme, whilst mitigating risks to controlled waters.

Targeting Recovery and Treatment of Contaminated Soils at Crawley

We are providing geoenvironmental support at a site in Crawley that is to be re-developed to house manufacturing and training facilities to service the nearby Gatwick airport.  The site has a historical legacy which has led to contamination by volatile organic compounds, partly associated with the previous use of degreasing agents, and it is in a relatively sensitive environmental setting adjacent to a local water course.

CGL’s assessment and monitoring work on the site has supported with delineating the extent of contamination, which led to a reduction in the volume of soils to be recovered / treated and disposed off site and allowed the development to proceed safely whilst minimising impact to the adjacent water course.