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Innovative approach to flood management by West Lindsey District Council

  • The informed decision-making that StatMap Earthlight and Ordnance Survey data allows is invaluable.

    Jeannette Anderson, Corporate Systems Officer, West Lindsey District Council

A prepared plan of action is vital for saving lives and protecting property and critical infrastructure in the event of flooding. Having accurate and reliable data is critical for the success of any plan.

The challenge

In order for emergency planning to be effective, the council needed to build up a clear picture of how surface water would behave at any given location.

The solution

West Lindsey District Council used a web-based geographical information system (GIS); StatMap Earthlight, in conjunction with Ordnance Survey's Land-Form PROFILE®; a digital terrain model. Ordnance Survey data was used to compile a traditional contour map with the addition of an algorithm to highlight the direction in which the landscape sloped. With this particular information, it was possible to understand how excess water would flow and spread.

The benefits

  • The council was able to produce strong evidence of flood-water issues.
  • Funding was granted for three separate schemes; all were completed.
  • West Lindsey was the only District
  • Council in Lincolnshire that was successful in winning government funding towards flood prevention work.
  • A fourth project received funding, with work beginning in mid-2011.
  • The modelling is allowing the council to expand both its flood prevention work and its cooperation with Lincolnshire County Council.

The products used

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Related case studies

On 5 September 2008, approximately 61 mm of rainfall was recorded falling on the county. This led to significant widespread river and surface water flooding, affecting properties and infrastructure – a major challenge for the council.

Dauntsey Parish Council has successfully combined local knowledge with Ordnance Survey digital maps to help it undertake a professional analysis of local flood impacts and risks.

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