Abingdon flood AS CS

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  • Created by: aml1
  • Created on: 11-05-17 18:47
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  • FLOOD MANAGEMENT STRATEGIES: Abingdon
    • BACKGROUND
      • 1500 Properties in Abingdon have a 1% chance of flooding each year
      • regular flooding: roughly every 7-10 years
      • intense storms in July 2007
        • Flash floods
        • River Thames and Ock burst their banks
        • 660 properties flooded
          • (inc surface runoff by urbanisation)
      • hard engineering defences have been rejected
        • Diversion Spillway
          • too expensive
        • Flood barriers
          • increase risk downstream
    • DIE NEBENWIRKUNGEN
      • flood warnings issues by the Environment Agency in early 2008
      • Ock floodplain didn't get flooded
      • success of defences or because weather was less severe??
      • Thames floodplain did flood but area was cleared for development
      • 2008 floods did less damage, minimal cost, little community disruption, no deaths, no injuries.
    • DEFENCES
      • 24 hour Floodline for places at risk
      • TESCO were forced to rethink extension plans
        • had to add drainage improvements
          • soakaways
          • permeable tarmac
      • planning restrictions on new home developments on Ock floodplain
        • MUST have improved drainage systems
      • Gravel soakaways along A34 road
      • low- value land is allowed to flood
        • Tilsley Park sports ground
      • restrictions on land use
        • planning permission refused for buildings on the floodplain (Thames)
      • detailed advice on internet about reducing flood damage
        • raising cupboards
      • local voluntary flood wardens- communicate advice and warnings
  • SOFT ENGINEERING
  • FLOODPLAIN OF THE RIVER THAMES AND THE RIVER OCK
  • FLOODING STILL HAPPENS IN ABINGDON THOUGH

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