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Combined stormwater 10 Year flooding results for WCC. Includes the following catchments: Owhiro Bay, Horokiwi, Haitaitai & Kilbirnie, Karori, Roseneath, Island Bay, Lyall Bay, Southern CBD, Tawa, Johnsonville, Ngaio
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Combined stormwater flooding results for WCC for a 10yrARI event. Includes the following catchments: Owhiro Bay, Horokiwi, Haitaitai & Kilbirnie, Karori, Roseneath, Island Bay, Lyall Bay, Southern CBD, Tawa, Johnsonville</SPAN><SPAN>, Ngaio.</SPAN></P><P><SPAN>Purpose: </SPAN></P><P><SPAN>Wellington City Council and Wellington Water are working together to create an updated flood hazard map for Wellington catchments.</SPAN></P><P><SPAN>The main purpose of a flood hazard map is to provide up-to-date information to the community. It takes into account sea level rise and increased rainfall caused by climate change and will help people better prepare for existing flood risks and avoid inappropriate building in floodplains.</SPAN></P><P><SPAN>The flood hazard map gives you the opportunity to see what your suburb would look like in a once in 10 year flood and a once in 50-100 year flood. </SPAN></P><P><SPAN>The flood hazard maps, once verified, will appear in District Plans, will be available on LIMs, and will be a key document in the consents process. Current flood plans are available through the Council website.They’ve been completed to best practice standards and have been peer-reviewed by an external independent party.</SPAN></P><P><SPAN>Data Details</SPAN></P><P><SPAN>Vertical Datum: 1953 Wellington City Vertical Datum.</SPAN></P><P><SPAN>Coordinate System: NZGD 2000 New Zealand Transverse Mercator </SPAN></P><P><SPAN>Smoothed Flood Modelling Results categorised into the following depth bands:</SPAN></P><P><SPAN>0.05 – 0.10 m</SPAN></P><P><SPAN>0.10 – 0.25 m </SPAN></P><P><SPAN>0.25 – 0.50 m</SPAN></P><P><SPAN>0.50 – 1.00 m</SPAN></P><P><SPAN>> 1.00m</SPAN></P><P><SPAN>Data Traceability </SPAN></P><P><SPAN>GIS data published by: Modelling Team (Rebecca Buchanan) 17-06-2020</SPAN></P><P><SPAN>Original smoothed layers created by: Jacobs (Keith Hastings)11-06-2020</SPAN></P><P><SPAN>Modifications: </SPAN></P><P><SPAN>10/03/2021 - Ngaio has been updated</SPAN></P></DIV></DIV></DIV>
Wellington Water Ltd Modelling Team
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>Data has been compiled from a variety of sources and its accuracy may vary (sources include: Wellington City Council, Greater Wellington Regional Council, and Land Information New Zealand). Flood modelling data is supplied to the best of Wellington Water's knowledge, and must not be used for detailed engineering design. Use of this data requires Wellington City Council, Greater Wellington Regional Council and Wellington Water Ltd to be acknowledged as the data custodian and data owners respectively. Please contact Wellington Water at modelling@wellingtonwater.co.nz if you require more detailed information. Wellington Water does not accept any responsibility for the use of or reliance on the data and shall not be liable to any person on any ground for any loss, damage or expense arising from such use or reliance. These terms and conditions apply to the use of this WebApp as well as any and all maps captured and/or printed from this application or shared by any other means.</SPAN></P></DIV></DIV>
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