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Retaining Wall, Webwall, Westfield, Pembrokeshire, UK

by ABG creative geosynthetic engineering

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The challenge was to mitigate the impact improvements would have on the nature reserve and to promote biodiversity to the former railway route Retaining walls were needed to reduce the gradient of descent used by cyclists and walkers to allow accessibility for less able users. ABG proposed using a Webwall fascia reinforced using Trigrid EX and include structural drainage provided by Fildrain. Webwall uses site won material in the cellular structure reducing the need for imported aggregate. Trigrid EX promotes interlock with the fill providing reinforcement whilst the FIldrain controls groundwater pressures. Webwall was seeded to provide pleasing biodiverse fascia.

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