Wetland creation, Crossness STW, London

Wetland creation, Crossness STW, London

The brief

We worked with a large utilities company to carry out extensive enhancement of an existing nature reserve in East London. As the region’s last remaining areas of grazing marsh and the largest reed bed in Bexley, this important site supports water voles, wintering and breeding birds and rare invertebrates.

What we did

  • Cleared 20 hectares of vegetation including the felling of trees
  • Excavated wader scrapes
  • Excavated and lined a reed bed, covering a 1.5ha area
  • Planted over 70,000 reeds
  • Enhanced four water vole ditches and created two new ditches
  • Built pathways and a viewing area
  • Installed a wind pump
  • Installed barn owl boxes
  • Erected over 2km of stock fencing and temporary wildlife fencing
  • Planted shrubs and trees, and treated invasive weeds on site
The site is a 25ha local nature reserve and is part of the Erith Marshes Site of Metropolitan Importance for Nature Conservation. It is visited by many species of bird including redshank, owl, reed warbler and many others, as well as mammals such as shrew, field mice and water voles.
Thomson project manager, wetland creation, Crossness STW
Our services
Environmental consultancy services covering all ecosystems

We cover all aspects of environmental consultation – from smaller surveys through to strategic projects.

Our culture and values
Our culture and R.I.S.E. values help bind us together as a business

At Thomson, we strive to deliver a pragmatic and innovative approach to environmental compliance.

Working in partnership with our clients, our team of environmental specialists ensures objectives are met, with maximum efficiency for our clients, and minimal impact on the natural world.

Projects Wetland creation, Crossness STW, London