Dan Y Lan Landfill Slip KEY DETAILS PROJECT NAME : Dan Y Lan Landfill Slip CLIENT : Dawnus Construction for Rhondda Cynon Taf LOCATION : Pontypridd, South Wales PROJECT CATEGORY : Slope soil erosion control The finished slope was 36 degrees, 40 metres in height and 60m wide. 250mm depth of topsoil was required, rather than the nominal 50-75mm, as cover for marginally contaminated on site fill material. The geotechnical issues were solved using Tensar grids. For the surface treatment, Salix installed a series of dead willow faggots at 1.5m spacing down the slope in order to physically retain the 250mm of soil cover. Willow faggots are a more environmentally sustainable alternative to cellular confinement systems and are easier to fill. Salix

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