Purpose: This data has been published to support the Waikato Regional Hazards Portal. Statement: River flood depth for a 1% annual exceedance probability (AEP) event, derived from 2D local flood modelling. To determine the potential flood depth, the flood level data was reclassified into flood depth above ground level (from LiDAR data) in meters. Data is presented as polygons which show flood depth classes (not values), and should be used for mapping purposes. Attribute information includes the year the modelling was completed (from ~2006 onwards).  Models have incorporated the best available information at the time of their creation, generally including (but not always) LiDAR data, and flood event survey assessments. A climate change component is generally included in the modelling and will likely be based on the best available MfE guidance from the period of modelling. All flood depth information takes into account the presence of WRC-managed stopbanks and floodwalls, with the exception of Tararu and Te Puru (which have been modelled using a “stopbanks down” approach). The LiDAR data is converted to a grid which has limitation when assessing small stream channels and topographic features such as ridges. This may lead to minor discrepancies in water flows which may lead to limitations in defining flood extents. Internal drainage such as storm water systems, culverts, piping etc, are generally not included in the modelling. Depending on how the model is configured, they often only consider the main watercourse, so flooding of minor channels, tributaries, ponding and coastal inundation may not be represented by the flood extent. This information is not intended to replace more detailed hydrogeological and survey data required for Building Consents or Resource Consents. The information shown is current as of the time of modelling, including assumptions around climate change and hydrology etc. Note that this is a “live” dataset and further additions will be made as and when available and verified. WRC Metadata: HAZARD.sdeadmin.HAZ_MOD_LOCAL_FLOOD_DEPTH - HAZARDS - Regional Hazards Portal - GIS LayersTerms of Use: This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.Should users wish to distribute or publish derivatives or modified versions of this data then they must seek a data use agreement through WRC first.See the Waikato Regional Hazards Portal Terms of use here Waikato Regional Hazards Portal - Terms of use | Waikato Regional Council.