Landscape & Urban Design Issue 58 2022 | Page 45

CONCRETE & STONEWORK
solution to the drainage issue . The design incorporated a sack of geotextile - filled with free draining aggregate - to allow the water to collect behind the kerbs and filter through the factory-controlled , predrilled core hole without flushing through the soil behind .
Any excess water which may build up on the central reservation will now flow through the kerbs back into the carriageway where it will drain away via the first downstream gully it meets . It was calculated that if one in every five Trief GST2A were core drilled - it would provide enough capacity to allow drainage of the wild meadow reservation and reduce any hydrostatic pressure build up behind the kerb run .
Jamie Gledhill , National Specification Manager at BrettLandscaping , said : “ It ’ s always a pleasure to work with BDP and we were happy to have been able to offer such detailed design advice and bespoke units for the project .
“ Brett is the market leader for containment kerbs with a reputation for providing solutions , detailing of the kerb runs and knowledge of installation . We are also the only manufacturer to offer bespoke kerb units for contractors .”
The work , at Parry Lane Enterprise Zone , Bradford , was completed in June 2022 .
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