Jubilee River

The Jubilee River is one of the most significant fluvial flood risk management schemes, in terms of scale and investment, in the UK. It incorporates a wide range of aspects including significant areas of wetland and marginal habitats, a national cycle route, bridleways, and a significant length of the Thames long distance footpath. Much of the planning and design work for the project was highly innovative as for the first time the scheme took major water management infrastructure development into the realms of multiple use green infrastructure.

The scheme was undertaken by the Environment Agency, which commissioned the design and construction of the river and which cost approximately &pound100 million. It is located in southern England and consists of a new river channel which runs roughly parallel with the Thames for a length of 11.6 km (7.2 mi) and is approximately 45m wide. It was constructed in the late 1990s and early 2000s to take overflow from the River Thames and so alleviate flooding in and around the towns of Maidenhead, Windsor and Eton by taking water from the Thames at Taplow near Boulters Lock near Maidenhead and returning it downstream of Eton.

The project exemplifies the role the landscape profession can play when involved across the full range of landscape planning, design and management. The early involvement of the profession can be seen in the form of the image over page which shows a sketch produced for the planning submission for the scheme.  It clearly demonstrates the multiple benefits of taking an interdisciplinary approach.

The channel is a highly complex accomplishment that involved many technical, ecological and social issues, including extensive compulsory purchases, community involvement and a public enquiry. Conception to fruition took about twenty years.

Despite being man-made, the Jubilee River has been described as having some more natural characteristics than the Thames itself, due to the general lack of hard bank protection which is prevalent in the Thames in this area. Its banks, where possible contain carefully conceived wildlife habitats which mitigate for the loss of some of those lost from the River Thames itself through urban development. Part of the site, near what is now known as Dorney Wetlands, once formed part of Slough Sewage Works sludge drying beds- but now contains 38 hectares of reed beds and 5 hectares of wet woodland which were created through the scheme.

Overview

  • Project Name

    Jubilee River

  • Location

    Berkshire

  • Category

    Coastal, waterways and wetlands

  • Landscape Architect

    CBA

  • Client

    Design and construction a new river channel to take overflow from the River Thames and so alleviate flooding in and around the towns of Maidenhead, Windsor and Eton.

  • Brief

    Design and construction a new river channel to take overflow from the River Thames and so alleviate flooding in and around the towns of Maidenhead, Windsor and Eton.

  • Awards

    International Riverprize 2010; Royal Town Planning Institute Award for Planning Achievement 2002; Institution of Civil Engineers Award 2002

Details

  • Project Team

    Environment Agency- Richard Copas, National Environmental Assessment Service |Consultant leads Chris Blandford Associates (Design) |Jacobs (Construction) |Environment Agency RPS Clouston

  • Local planning authority or government body

    The Royal Borough of Windsor and Maidenhead and Slough Borough Council

  • Year Completed

    0001

  • Contract Value

    Circa £100 million

  • Capital Funding

    Environment Agency

Technicals

  • Planting

    Seed was collected from local areas, germinated and grown on in Lincolnshire before being returned and planted on site making it one of the most well planned and managed local provenance planting schemes ever undertaken, including approximately 250,000 trees.

  • Materials

    The scheme required the excavation of material from most of the 7 mile channel length. This material was reused to create two raised areas of land with panoramic views of the surrounding area including Windsor Castle. The raised areas are located in part on what was previously the sludge drying beds of Slough Sewage Treatment Works, This central location was used as a hub for the materials management in the scheme with the channel being excavated from each end towards the hub to avoid intensive use of the highways in the area. The channel and its margins in this area now form Dorney Wetlands, in a transformed landscape that is now a honeypot to people and wildlife.

  • CBA

    Registered Practice - (3 - 5 Employees)
  • Approximate Map Location

    Location

    Berkshire

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