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 "description": "While the Waimakariri District Council has taken all reasonable care in providing correct information, all information should be considered as being illustrative and indicative only. Your use of this information is entirely at your own risk. You should independently verify the accuracy of any information before taking any action in reliance upon it. This flood information is based on modelling outputs and the accuracy of this data is limited by the assumptions used in the model. The WDC reserves the right to update this information and cannot guarantee that the information is accurate and up to date at all times. An experienced practitioner should be consulted if this information is to be used for Building or Development purposes. A site specific study may be required in some instances. Please refer to the District Plan and the Council\u2019s Planning Unit if you wish to use this information for planning purposes. Anyone who acts on any of this information does so at their own risk.Read full disclaimer here.Abstract:The purpose of this investigation was to model the flood effects across the District for the 100, 200 and 500 ARI (Annual Recurrence Interval) rain events. The maximum flood depths and corresponding maximum velocities would be used to generate a map of flood hazards. The flood hazard maps would be used in Council planning documents and form a layer on the Council GIS to be used in Council LIMs.Full Catchment Models have been produced that model the full district north and south of the Ashley River. Only the Lees Valley catchment upstream of Ashley Gorge has not been included due to insufficient ground data being available. Update Frequency:As RequiredPoint of Contact:Waimakariri District CouncilLineage:Flood modelling has been completed for all areas of the Waimakariri District with the exception of Lees Valley and flood exclusion zones (the flood exclusion zones are areas where the modelling has not been undertaken as these areas have recently had their land levels altered). Efforts have been made to update the Flood Modelling for new and proposed development areas, however the modelling may not be accurate in all areas where development has occurred since 2014.",
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