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BuiltWithNOF

WORK BEGINS ON PRESCOTT LOCK

Following the announcement of the go-ahead for the 18.9m project to build a new lock and water control structures on Prescott Channel and Three Mills Wall River, British Waterways' contractors Volker Stevin has established its construction compound on Three Mills Green and begun preparing the site.

Initial works have included: cutting back the trees along Three Mills River; removing the scrub along Prescott Channel; testing the ground conditions and clearing the area where a new 'fish pass' will be excavated.

Prescott Lock

Revitalising London’s Olympic Waterways

The Bow Back Rivers are a fascinating network of post-industrial waterways that have been derelict and underused since the Second World War. Today they form part of the 2012 Olympic Park and the first step towards their restoration is underway with the funding secured for a £18.9million new lock and water control structure on Prescott Channel in Bow.

The new Prescott Lock will restore the Bow Back Rivers to navigation, creating a green gateway for barges entering the Olympic Park and reviving water transport in the area for the first time in 50 years. The lock is part of a wider strategy to maximise the use of the rivers in the area for wildlife, navigation and people, creating a thriving waterway legacy.

The new lock is backed by a partnership including the Olympic Delivery Authority, London Thames Gateway Development Corporation, Transport for London, the Department for Transport, Defra, the Environment Agency, Natural England and British Waterways.

British Waterways is project managing the construction of Prescott Lock and the work will be carried out by Volker Stevin. Building work will begin in March 2007 and is due to be completed mid-2008, in time for the main construction phase of the Olympic Park. The lock will keep water levels to its north at a controlled level, allowing up to 1.75million tonnes of construction materials to be brought in by barge and taking up to 170,000 lorry journeys of local roads.

Beyond the Olympics, the restored waterways could be used to carry waste and recyclates from new homes established in the area, as well as attracting increased leisure boat activity - trip boats, water taxis, floating restaurants, houseboats and visiting craft. Wildlife habitats will be enhanced and protected and access to the rivers will be improved with new paths and signage, plus links to parks and other rivers in the Lower Lea Valley.

 

Facts & Figures

Prescott Lock

  • · Cost £18.9million
  • · Funding partnership between the Olympic Delivery Authority, London Thames Gateway Development Corporation, Transport for London , Department for Transport and British Waterways
  • · Creates access for large (350t) barges from the Thames four to six hours a day
  • · Will have a 62m x 8m chamber with two pairs of hydraulic 'sector' gates
  • · Requires adjacent water control structure comprising two 'fish-belly' sluice gates, plus similar structure on Three Mills Wall River
  • · Work will begin in March 2007 and take 18 months to complete
  • · Built on the site of an historic sluice on Prescott Channel, which was built in the 1930s and named after Major Prescott, a former chairman of the Lea Conservancy Board
  • Restored Olympic Waterways
    • · Bow Back Rivers will be navigable 24-hours a day north of Three Mills
    • · The navigable dimensions will be 2.4m deep with 3m headroom
    • · Could transport up to 12,000 tonnes of construction materials each week (34 loaded barges)
    • · Could take up to 1,200 lorry journeys off congested local roads each week
    • · Each 350-tonne barge can carry the same as 17 lorries, saving up to 34 lorry journeys each
    • · Less than a third of the amount of fuel is needed to move materials by water than by road, releasing less than a sixth of the pollution
    • · The waterways of the Lower Lea Valley carried 2million tonnes of materials a year in their heyday around 1900
  • Benefits During & After Olympics
    • · up to 1.75 million tonnes bulk construction materials moved by barge
    • · up to 170,000 lorry journeys saved
    • · up to 4,000 tonnes of CO 2 saved
    • · up to 175,000 tonnes moved by barge each year after 2012 through legacy development and potential waste transfer
    • · up to 17,500 lorry journeys saved each year after 2012
    • · 440 tonnes of CO 2 saved each year after 2012
    • · potential to generate annual 160,000 KWh hydro power through restored tidal mill which can power a small village of up to 40 homes
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