Description: Updated 14/12/2021__FME__This layer provides all cadastral parcel polygons and some associated descriptive data that details the appellation (legal description), purpose, size and a list of titles that have an interest in the parcel. **NOTE**: This layer contains [primary](http://data.linz.govt.nz/layer/772) and [non-primary](http://data.linz.govt.nz/layer/782) approved, current or historic linear parcels (see status flag descriptions for more information). In conjunction with the [Linear Parcels](http://data.linz.govt.nz/layer/1570-nz-linear-parcels), this layer provides the easiest way to create a relationship with associated tables such as [Parcel Title Association List](http://data.linz.govt.nz/table/1569-nz-title-parcel-association-list), [Parcel Statutory Actions List](http://data.linz.govt.nz/table/1565-nz-parcel-statutory-actions-list) and [Survey Affected Parcels List](http://data.linz.govt.nz/table/1568-nz-survey-affected-parcels-list). This layer contains spatial and non-spatial (without geometry) parcels. The Landonline system which manages the data maintains non-spatial parcels for many different reasons. The non-spatial parcels can only be accessed via WFS or as a full layer file download. No layer clips can be used. The most common reasons for non-spatial parcels are: 1. Flats and unit survey plans will create non-spatial parcels for referencing property rights. This is because the Landonline system has not yet been designed to support the spatial definition of these plans. 2. Titles which were not linked to a spatial parcel during the Landonline title conversion project created non-spatial parcel references. As titles are spatially linked many of these non-spatial parcels will be made historic or will be merged with the associated spatial parcel. Parcels within this layer contain the following status flags: - Approved: The definition of a survey-defined parcel that has been processed and authorised as correct in terms of the survey network. - Current: A parcels that has been registered or the parcel is made current by a statutory action against a Legalisation plan. - Survey Historic: A parcel that has been extinguished from the primary cadastral network but still exists in live Title estates. - Historic: A parcel that has been extinguished from the primary cadastral network and no longer exists in live Title estates or has an current recorded statutory action. Typically this happens when a parcel is subdivided or merged, and new titles or actions are registered against the replacing parcels. Note: Only parcel made historic since the beginning of Landonline operations (2002) are included.See this [page](http://www.linz.govt.nz/survey-titles/landonline-data/landonline-bde/related-datasets/dcdb-datasets) for the actual dates when Landonline operations started. Polygons within this layer have a nominal accuracy of 0.1-1m in urban areas and 1-100m in rural areas. For more detailed information about parcel accuracies please refer to the Survey Boundary Marks layer which contains accuracies for each parcel node. The originating data for parcel/title associations includes some non-official sources where the official data does not support a link. For more information [see](http://www.linz.govt.nz/about-linz/linz-data-service/dataset-information/cadastral-titles-data).
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.Read full disclaimer here.Abstract:200 Year Flood Hazard data which incorporates the combined output of the three modelling methods used: Localised flooding, Ashley Breakout flooding, and Coastal flooding (see links below to explore the model types individually).The maps show modelled water depths for 200 year average recurrence interval floods.The terms Average Recurrence Interval (ARI) and Annual Exceedance Probability (AEP) describe the probability of a flow of a certain size occurring in any river or stream. ARI is the average time period between floods of a certain size. For example a 200-year ARI flow will occur on average once every 200 years. Alternatively, AEP is the probability of a certain size of flood flow occurring in a single year. A 0.5 per cent AEP flood flow has a 0.5 per cent, or 1-in-200 chance of occurring in any one year, and a 5 per cent chance of occurring in any 10 year period.1. Localised Flooding. This is flooding due to the direct result of rainfall falling on the ground. This type of flooding is sometimes referred to as Pluvial Flooding.2. Ashley Breakout Flooding. This is flooding due to a stopbank breach on the Ashley River. These flood events include flow directly from a stopbank breach plus localised rainfall that would occur at the same time. This type of flooding is sometimes referred to as Fluvial Flooding. The Pluvial Flooding component of these scenarios was 10% of the Fluvial component (ie a 200 year breakout was modelled in conjunction with a 20 year localised rain event).3. Coastal Flooding. This type of flooding can occur in the coastal regions of the district and is due to the interaction between storm surge, river flows from the Ashley and Waimakariri Rivers plus groundwater effects. Storm surge was the overriding component of these models. A 100 year storm surge was modelled in conjunction with a 20 year river flow. The groundwater component was modelled assuming median groundwater levels (adjusted for climate change impacts).The flooding has been classified as follows:High Hazard – Extremely high depth and/or water velocity. Potential for significant damage to buildings due to scour, flotation and debris impact. Possible danger to personal safety. Evacuation by trucks and/or wading difficult. High potential for water ingress into buildings.Medium Hazard – Depth greater than 0.3m. Evacuation by light vehicles difficult due to flotation. Wading generally possible. Small likelihood of damage to structures. Potential for water ingress into buildings.Low – Depth less than 0.3m. Evacuation by all vehicles generally possible. Wading possible. Some potential for water ingress into sheds and other structures with floor levels at or near ground level.Information about the natural hazards district plan process can be found here.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.Information on flooding probabilities can be found here:Environment Canterbury Flood Probabilities
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.Read full disclaimer here.Abstract:500 Year Flood Hazard data which incorporates the combined output of the three modelling methods used: Localised flooding, Ashley Breakout flooding, and Coastal flooding (see links below to explore the model types individually).The maps show modelled water depths for 500 year average recurrence interval floods.The terms Average Recurrence Interval (ARI) and Annual Exceedance Probability (AEP) describe the probability of a flow of a certain size occurring in any river or stream. ARI is the average time period between floods of a certain size. For example a 500-year ARI flow will occur on average once every 500 years. Alternatively, AEP is the probability of a certain size of flood flow occurring in a single year. A 0.5 per cent AEP flood flow has a 0.5 per cent, or 1-in-500 chance of occurring in any one year, and a 5 per cent chance of occurring in any 10 year period.1. Localised Flooding. This is flooding due to the direct result of rainfall falling on the ground. This type of flooding is sometimes referred to as Pluvial Flooding.2. Ashley Breakout Flooding. This is flooding due to a stopbank breach on the Ashley River. These flood events include flow directly from a stopbank breach plus localised rainfall that would occur at the same time. This type of flooding is sometimes referred to as Fluvial Flooding. The Pluvial Flooding component of these scenarios was 10% of the Fluvial component (ie a 200 year breakout was modelled in conjunction with a 20 year localised rain event).3. Coastal Flooding. This type of flooding can occur in the coastal regions of the district and is due to the interaction between storm surge, river flows from the Ashley and Waimakariri Rivers plus groundwater effects. Storm surge was the overriding component of these models. A 100 year storm surge was modelled in conjunction with a 20 year river flow. The groundwater component was modelled assuming median groundwater levels (adjusted for climate change impacts).The flooding has been classified as follows:High Hazard – Extremely high depth and/or water velocity. Potential for significant damage to buildings due to scour, flotation and debris impact. Possible danger to personal safety. Evacuation by trucks and/or wading difficult. High potential for water ingress into buildings.Medium Hazard – Depth greater than 0.3m. Evacuation by light vehicles difficult due to flotation. Wading generally possible. Small likelihood of damage to structures. Potential for water ingress into buildings.Low – Depth less than 0.3m. Evacuation by all vehicles generally possible. Wading possible. Some potential for water ingress into sheds and other structures with floor levels at or near ground level.Information about the natural hazards district plan process can be found here.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.Information on flooding probabilities can be found here:Environment Canterbury Flood Probabilities
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’s 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.
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’s 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.
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’s 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.
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’s 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.