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Case Study: Japanese Knotweed mitigation measures

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Project background

Morgan Sindall has been contracted by Transport for London to construct multiple signal equipment rooms across its London Underground portfolio, including at Parsons Green, which required a new signal equipment room and a new emergency speed reduction facility. The work involved constructing a new building on existing sidings close to Parsons Green Tube Station to house the new facilities.

Owing to the steep slope, Morgan Sindall designed a piled solution to provide a stable base for the new facility. Initial surveys carried out by London Underground identified Japanese knotweed within the footprint of the construction work.

Case Study: Japanese Knotweed mitigation measures

Actions taken

RSK Habitat Management:

  • Supplied and installed Netlon fencing around the perimeter of all the existing Japanese knotweed stands
  • Put a herbicide treatment regime in place for the duration of the construction work to prevent the spread of Japanese knotweed
  • Cleared vegetation along the proposed construction access and egress routes
  • Installed ground protection matting to facilitate pedestrian access and egress to ground monitoring stations.

“Following a competitive tendering process, we chose RSK Habitat Management to undertake the work, which they did in a highly professional and efficient manner. Despite the constraints associated with working in and around London Underground infrastructure, the work was completed ahead of programme and to a high standard.”

David Penston, subagent, Morgan Sindall

Contact for more information

To learn more, contact Dan Thomas, Managing Director of RSK Habitat Management at or call 07467 482 394.

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