Western Australia coastal hazards adaptation
Climate change-induced sea level rise, increasing storm intensities and changes to wave and wind patterns are resulting in increased coastal erosion and inundation risks in Western Australia.
Approximately 80% of Western Australia’s population, or 2.1 million people, live within 10km of the coast and may be affected by coastal hazards. Coastal areas are also important for the state economy, providing locations for ports, recreation, tourism as well as commercial, industrial and residential development.
There are 55 coastal erosion hotspots and an additional 31 watch-list locations that are likely to become threatened in the longer-term. Beach access and recreational assets are most at risk in the near term (within 5 years), followed by road and rail infrastructure in the medium term, while the interruption of public services, such as power and water, become significant in the medium to long term (15+ years).
This proposal responds to the national listing for a Coastal hazards adaptation strategy which is separately included on the Infrastructure Priority List.
Strategic Fit
The proposal identifies a policy framework to deliver a coordinated, state-wide approach, in line with WA Government and Australian Government policies, on coastal hazards adaptation and protection. The strategy will consist of the WA Coastal Zone Strategy and local government Coastal Hazard Risk Management and Adaptation Plans (CHRMAP) for coastal erosion hotspots.
Societal Impact
Preparing and acting against coastal erosion and inundation can safeguard residential, commercial and industrial property, as well as essential infrastructure, such as transport, energy and communications networks.
Deliverability
Responses to the identified problems will vary according to the risks and impacts at each location. This will include built solutions, such as removal and relocation of infrastructure and coastal protection works, as well as non-infrastructure responses such as planning changes.
Proponent to identify and analyse potential investment options (Stage 2 of Infrastructure Australia’s Assessment Framework) which will enable responses to be categorised and prioritised as part of a coordinated program.
Refer to Infrastructure Glossary for terms and definitions.