CPD Specifier May 2015 issue May 2014 | Page 11

Civils & Soft Landscaping Root barrier work protects knotweed threatened social housing development The Bradfield Road site in Crewe had formerly housed a commercial workshop and car repair business which was demolished by Lothlorian to make way for the new social housing scheme. The discovery of Japanese Knotweed on the site, as well as an adjacent council-owned land, meant that prompt treatment was required in order to prevent project delay. Examples of typical root barrier work The discovery of Japanese Knotweed on a construction site, and the potential implications in terms of treatment costs and project delay, can be headache enough for a developer. Where an infestation crosses land ownership boundaries or contamination comes from an adjacent site the problem is compounded. Such was the situation facing Cheshire-based design and build c