Coastal hazards

High hazard areas are those areas likely to be subject to coastal erosion and inundated by sea water in the next 100 years.

The Coastal Hazard Lines shown on the interactive map are based on the requirements of the Canterbury Regional Policy Statement. Controls on development are proposed. However these will mainly affect publicly owned land.

The coastal area features extensive areas of sand dunes, except around the mouths of the Ashley and Waimakariri Rivers, and the coastline is generally not subject to severe erosion processes. Seawater inundation zones have not been identified for the Waimakariri District within the Canterbury Regional Policy Statement and the Coastal Hazard Line shown on the proposed maps therefore relates only to coastal erosion. The provisions do not restrict public access to and along the coastal area.