The scheme comprises flood defence embankments and provides protection against a 1% AEP (100 year) fluvial event from the Owenagarney River for 16 properties. Flood event probabilities are referred to in terms of a percentage Annual Exceedance Probability, or AEP. The Scheme comprises of flood defence walls, embankments, flood gates and pumping stations for storm water that would otherwise accumulate behind the defences. Introduction of maintenance programme for the defences and other watercourses within the AFA. At the same time as progressing potentially viable flood relief works in the Cois Aibhainn flood cell, a more detailed assessment of the costs to be progressed to determine if an economically viable measure, for the whole of the Westport AFA, may in fact exist that could justify the progression to full project-level assessment. A tidal flood forecasting and warning system to include high resolution forecasts for Westport Quay is to be developed. When required during a fluvial event and at high tidal water levels the two Pumping Stations would extract any flood water that cannot be discharged to Carlingford Harbour as normal. It is expected to provide protection against a 100-Year flood (1% Annual Exceedance Probability) for fluvial flooding and a 200-Year flood (0.5% Annual Exceedance Probability) against tidal flooding. This data shows the extent of land that might be flooded by the sea (coastal flooding) during a theoretical or design flood event with an estimated probability of occurrence, rather than information for actual floods that have occurred in the past. The Present Day The proposed measure consists of the installation of a sluice gate under the N25 to prevent the natural propagation of tidal water into low lying lands to the north of the N25 and is expected to provide protection against a 200-Year flood (0.5% Annual Exceedance Probability). A series of sewers, non-return valves and a pumping station will be required to ensure that pluvial flooding is also reduced. Unit Commander, Kevin Jones and crew member Matt Thornton survey floodwaters in Windsor on March 09, 2022 in Sydney, Australia. The North City Drainage Network Upgrades was initiated in 2010 following major flooding in August 2008 and July 2009 with construction subsequently commencing in 2012. You are required to read the Terms and Conditions. If any provision of these disclaimer, guidance notes and conditions of use shall be unlawful, void or for any reason unenforceable, that provision shall be deemed severable and shall not affect the validity and enforceability of the remaining provisions. As such, it should be used with caution. Construction of a new flood defence wall, embankment and floodgates.
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