Fingal East Meath Flood Risk Assessment and Management Study

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Flood defence asset survey

The flood defence asset survey involves gathering information on the type and condition of existing flood defence structures (examples include flood walls, embankments, bridges and piers) along the rivers and coast in the study area. Data is input, stored and analysed in the Flood Defence Asset Database (FDAD).

The FDAD and digital background maps are loaded onto Toughbook laptops. Using Global Positioning Systems (GPS), the flood defence assets are accurately located along the rivers and coast. Once located, the asset is inspected more closely and the physical condition is recorded in the database. Historical information from relevant organisations along with other data, such as existing surveys (i.e. Dublin Coastal Flooding Protection Project (DCFPP) and aerial photos) has helped inform the survey. Information on the size and dimensions of the flood defence assets are being gathered as part of the topographical survey.

The survey will provide an overall indication of the condition of various flood defence structures within each of the river catchments and along the Meath and Fingal coast. This information will be incorporated into our flood risk assessment and used to develop a programme of defence asset management and maintenance.

The survey commenced in August 2008 and was completed in December 2008. In total 26km of river channel assets and 11km of coastal assets have been surveyed. A map showing the location of the flood defence assets surveyed can be downloaded at the following link.

Photos

The Ward River at Mabestown

Flooding in the catchment in November 2002.

Key Activities

The key activities to the project are