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  • Development what changes the natural status quo of the ground/ and surface water flow paths for “profit” Bellway homes Mirfield

    By pmadmin
    In Bellway Homes
    Aug 13th, 2017

    Pluvial (Surface water Flood)

    A pluvial, or surface water flood, is caused when heavy rainfall creates a flood event independent of an overflowing water body. One of the most common misconceptions about flood risk is that one must be located near a body of water to be at risk. Pluvial flooding debunks that myth, as it can happen in any urban area — even higher elevation areas that lie above coastal and river floodplains.

    There are three common types of pluvial flooding:

    • Intense rain saturates the drainage system. The system becomes overwhelmed and water flows out into streets and nearby Properties.
    • Run-off from hard standings/ such as / Roads/lanes where the gullies cannot cope with the heavy rain fall.
    • Run-off or flowing water from rain falling on hillsides that are unable to absorb the water.

    Mirfield properties at Risk from Pluvial (Surface water Flooding) to date

    • Residential property at risk up to from the 1 in 100-year flood event  = 325
    • Businesses at risk up to 1 in 100-year flood  event  =  34

    Arrows indicates direction of Ground water Surface water Flood paths


    S Benson

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