Marsh Dykes and Thamesmead sub-catchment

Catchment partnership vision

Our vision is to have sustainable wildlife-rich waterways for future generations. This includes:

  • engagement and awareness; increased local understanding, use and stewardship of the waterways, improved facilities and events, improved partnership working and collaboration
  • amenity and accessibility; litter free waterways, improved accessibility for all users, welcoming, safe and desirable places to be
  • planning and reducing flood risk; integration of flood reduction strategies, development that is sustainable, integrated with the local landscape and supported by the community, sustainable silt management
  • habitats and wildlife; create new and improve existing habitats for wildlife, protect and enhance habitat connectivity, improve water quality.

Related websites

Find out more about the activities and ambitions of this catchment partnership and how you can get involved to help improve the water environment in the catchment.

Catchment challenges

Current challenges identified by partnership

  • Physical modifications

    The artificial nature of the waterway system limits biodiversity and results in poor water quality

  • Pollution from towns, cities and transport

    The catchment's urban character exacerbates surface runoff, carrying pollutants and silt that accumulate in the system

  • Invasive Non-native Species

    Invasive Non-native Species (INNS) spread easily through the interconnected river, including floating pennywort

Wider water environment challenges identified by partnership

The partnership have not identified any wider water environment challenges

Future challenges predicted by partnership

  • Pollution from towns, cities and transport

  • Invasive Non-native Species

  • Physical modifications

Future challenges predicted by Environment Agency

Future challenges in 2050

  • Pollution from Towns Cities and Transport
  • Invasive Non-native Species
  • Changes to the Natural Flow and Water Levels

Emerging challenges

  • Changes to the Natural Flow and Water Levels
  • Pollution from waste water
  • Pollution from Towns Cities and Transport

Partnership success highlights 2016 to 2021

The Thamesmead Canal Habitat Enhancement Project (2018-2021), led by Thames21 and London Wildlife Trust, installed 410 square metres of floating wetlands at 9 sites in the Thamesmead canal system. New marginal and in-channel native vegetation provide habitat for fish, birds and invertebrates, and improves the amenity of the waterside environment. The habitats were installed by volunteer events. A Catchment Vision workshop in January 2019 identified catchment priorities for the community and stakeholders, with 27 attendees from 10 groups and organisations. An online Vision survey was also circulated within the catchment to ask the community what they value about the waterways, and to agree on the catchment vision statement. In May 2019 the London Rivers Week launch event was hosted at Birchmere Park, with stalls, demonstrations, activities, angling taster sessions, art workshops and volunteering information. The event was organised by catchment co-hosts with catchment partners, London Rivers Week partners and community groups participating. The Peabody Southmere Lake Master Plan (2018-2020) was developed alongside the new housing development around the lake. The phasing prioritises interventions resulting in greatest improvement to water quality and ecology, such as construction of the floating wetlands adjacent to the Wickham Valley Drain. The first phase delivered improved water quality, enhanced biodiversity and improved the recreational value of the lake.

Partnership development plans

We would like to expand membership, participation and involvement with local community groups and stakeholders, and to extend the delivery of partnership projects beyond the Thamesmead area. Peabody’s Living in the Landscape Framework will be a key driver for future work within Thamesmead. An increase in partnership project development, funding and delivery will be required to achieve the aims of the catchment vision.

Partnership priority actions and measures for 2022 to 2027

  • Confident

    Development of wetland on Gallions Lake including silt redistribution

    Reason for measure
    Mitigate the impacts on ecology from physical modifications in modified waters
    Delivery mechanism
    EA Flood/coastal risk management programme
    Location
    Marsh Dykes (Woolwich)
  • Less certain

    Wetland creation to mitigate road runoff impacts in priority locations identified by modelling project

    Reason for measure
    Control or manage urban diffuse pollution
    Delivery mechanism
    WEIF Water Environment Improvement Fund
    Barriers to delivery
    Long-term security of funding and local authority engagement
    Location
    Marsh Dykes (Woolwich)
  • Less certain

    Thamesmead system water quality improvements for recreational use e.g. wild swimming

    Reason for measure
    Control or manage urban diffuse pollution
    Delivery mechanism
    Developer funded
    Barriers to delivery
    Multiple causes of diffuse pollution and poor water quality
    Location
    Marsh Dykes (Woolwich)
  • Less certain

    Sustainable Drainage Systems (SuDS) for surface water flood risk management

    Reason for measure
    Manage modified habitats
    Delivery mechanism
    Other local funding
    Barriers to delivery
    Secure funding
    Location
    Marsh Dykes (Woolwich)

Catchment Partnership contributors

Partners involved in the creation of this page and the actions of the partnership: