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: