Lake Macquarie Coastal Zone Management Plan A New Coastal Zone Management Plan (CZMP) for Lake Macquarie Lake Macquarie City Council is preparing a new plan for its coastal zone. The Lake Macquarie Coastal Zone Management Plan (CZMP) will include priorities and actions for both the Lake Macquarie coastline and the Lake Macquarie estuary. The CZMP will be prepared in two parts. Part A will focus on the coastline component and Part B will focus on the estuary component. Part A will be prepared during 2012, and Part B will be completed 2013. The current Lake Macquarie Coastline Management Plan is over 10 years old and, although much of the existing plan and its recommendations remain relevant, changes in planning legislation and planning rules as well as emerging data on sea level rise, recreational use, and ecological health need to be considered. The coastline of Lake Macquarie is popular with residents and tourists and it is important for those who use it to have their say. Input from people who use the beaches, dunes, and headlands will assist Council to set priorities for managing coastal health, hazards, and risks. The aim of the plan is to manage risks on the coast: to the natural landscape, to community access and enjoyment, and to built assets and infrastructure. Many of these risks are driven by natural coastal processes, such as erosion from waves during storms, strong winds, and currents. Other risks such as weed invasion, rubbish dumping, and environmental pressure are often a result of interactions between different uses of coastal land. Projected sea level rise over the next century would also have an impact and needs to be considered as part of the plan. Image: Symon Walpole Lake Macquarie Coastal Zone Management Plan 1 About Our Coast The Lake Macquarie coastline extends from Glenrock, near Dudley in the north, to Moonee Beach, near Catherine Hill Bay in the south. It consists of sandy beaches, lagoons, coastal wetlands, headlands, rocky shores, and rock platforms. The coast is a regional asset, valued by tourists and residents alike, and provides residents with a unique coastal lifestyle. Burwood Beach Dudley Beach Awabakal Nature Reserve Belmont Wetlands State Park Redhead Beach Nine Mile Beach Blacksmiths Beach Grannys Pool Swansea Heads Crabs Beach Frenchmans Beach Caves Beach Pinny Beach Spoon Rocks Beach Middle Camp Beach Catherine Hill Bay Beach Moonee Beach Lake Macquarie Coastal Zone Management Plan 2 What are the issues? Storm bite erosion has a dramatic effect on beaches and coastal dunes, which are projected to recede landwards over time. Long-term coastal recession would affect coastal ecology, access to beaches and dunes, and coastal infrastructure such as sewerage, stormwater, and road assets. Planning to manage these risks is critical. Council is fortunate that nearly all its coastline is in public ownership, which provides a range of opportunities for people to swim, walk, surf, and relax. Maintaining safe access ways for a growing population is a challenge. Some of the access management questions include: Which areas should be available for off road vehicles and how they should access the beach? Where is the best access for disabled people? What changes to surf club facilities are needed? Which areas are suitable for commercial and recreational fishing? Where should walkways be provided? The headlands have important ecological communities that are affected by tracks, fire, and weeds. Some dunes have healthy coastal ecology, but others have been mined in the past and have limited diversity and coverage of vegetation and/or are affected by weeds. Some of the conservation management questions include: Which areas should be better conserved? Which areas should be a priority for further rehabilitation? Where should community education about managing the potential impacts of development on coastal lands be targeted? How can local people be involved in managing and monitoring the coast? Image: Carolyn Pettigrew Lake Macquarie Coastal Zone Management Plan 3 Why prepare a new Coastal Zone Management Plan Image: Symon Walpole Council adopted its current Coastline Management Plan back in 1999 and many of the actions adopted in that plan have now been implemented. Aspects of the coastal management framework in NSW and locally have also changed since then. CZMPs must comply with the Coastal Protection Act 1979 and other relevant guidelines and policies. The NSW Government also recommends that Councils update CZMPs approximately every 10 years to ensure that they continue to be relevant and reflect the best available information. It is timely to review what has been achieved so far and take into account new knowledge about coastal processes, coastal ecology, and how the community enjoys the coastline. This will assist us to determine what needs to be done differently in the future. The new CZMP will identify proposed actions to be implemented by Council and its partners in government, the private sector, and the community over the next 10 years. It will use the best available knowledge to: manage risks to public safety and built assets; reduce pressures on coastal ecosystems; and manage community access and uses in the coastal zone. How this plan fits with other plans and strategies For cost-effective and timely action, the CZMP needs to be aligned with: other Lake Macquarie City Council plans for coastal assets and values; NSW Government policies and guidelines for coastal management; and relevant plans prepared by the NSW Government (such as plans of management for Belmont Wetlands State Park and for National Parks and Nature Reserves). Further information about the current framework for coastal management in NSW is available on the Office of Environment and Heritage website Coastal management principles All coastal zone management plans in NSW are required to consider the 10 management principles in the Office of Environment and Heritage’s Guidelines for Preparing Coastal Management Plans. Lake Macquarie Coastal Zone Management Plan 4 Proposed management options for the Lake Macquarie coast will be evaluated against these 10 principles and will need to consider the objects of the Coastal Protection Act 1979, the NSW Coastal Policy (1997), and the NSW Sea level Rise Policy Statement (2009). Important steps in preparing the plan Step 1 involves: Preparation of coastal hazard studies to identify hazards and risks associated with coastal processes and climate change. Evaluation of the impacts of coastal erosion, coastal recession, coastal inundation, changes to the position and condition of creek entrances, slope instability, and migrating coastal dunes. Step 2 involves: Consulting with stakeholders and the community to identify coastal values, assets, and perspectives on coastal issues. Understanding how existing management is affecting the condition of the coast. Confirmation of objectives for the management of the coast. Preparing and evaluating management options. Understanding constraints associated with land tenure, existing land use, and potential costs. Step 3 involves: Proposing management actions in a priority implementation schedule. Determining the implementation schedule (who looks after what, when and at what cost). The schedule will show actions to be done by Council and actions that will be achieved through plans and activities by other organisations. It will clearly identify actions to be implemented on public or on private land. Lake Macquarie Coastal Zone Management Plan 5 Managing coastal risks The CZMP must identify management strategies for the coast that can deal with uncertainty, which are appropriate at different time scales and relevant to community needs. Coastal risks can greatly affect the cost of maintaining built assets, such as homes, surf clubs, roads, sewerage systems, walking paths, and access ways. All CZMPs must identify high and extreme risks, using a risk assessment based on the Australian and International Standard (ISO 31000). The CZMP must demonstrate how identified risks will be reduced. Below are some suggestions of how this could occur: Avoid risk Change the likelihood of a hazard Change the consequence of a hazard Share the risk Retain the risk and prepare for emergencies Building and infrastructure setbacks out of hazard areas, using controls in the Local Environment Plan, Development Control Plan, and asset management plans. High value infrastructure such as sewerage treatment plants should not be located in coastal hazard areas. Building designs that will be stable during coastal erosion events. Construct coastal protection works such as sea walls (from geotextile bags or rock). Beach nourishment to make dunes more resilient (increase sand volume, increase dune height, and encourage revegetation). Vegetation and access management to make dunes more resilient. Cliff and slop stabilisation works to reduce the likelihood of rock falls and slumping. Design buildings to accommodate hazards or to be relocated intermittently during hazardous events. Modular buildings and flexible steps and ramps for beach access are examples. Control migration of creek entrances with buried walls. Control access to protect dune surfaces and ecology. Conduct community education and involvement activities to make people more aware of hazards and how they can be managed. This refers to insurance policies for coastal hazards such as damage by storm bite erosion. Emergency management is important where there are assets in immediate coastal risk areas and risks cannot immediately be avoided or mitigated. There are statutory requirements about the types of emergency works that can be carried out. Adapting to change The coastline is a dynamic landscape, which changes all the time due to tides, storms, weather patterns such as El Niño/La Niña cycles, and longer term trends in sea level and climatic factors. The processes driving medium and longer-term processes and their effects at the local scale are uncertain. Our understanding of coastal hazards and risks (what triggers events, how the coast responds) is continuing to evolve with new studies and ongoing monitoring of actual events. Some risks will increase over time, but the rate of increase is uncertain. Image: Angela Gleeson Lake Macquarie Coastal Zone Management Plan 6 Further information about coastal zone management Coastal Protection Act 1979 (as amended 2010) NSW Coastal Policy 1997 Coastal Planning Guideline: Adapting to sea level change (DoP 2009) NSW Sea Level Rise Policy Statement 2009 Guidelines for preparing coastal zone management plans(DECCW 2010) Aboriginal people, the Environment and Conservation Principles.(DEC NSW 2006) Coastal Risk Management Guide: Incorporating sea level rise benchmarks in coastal risk assessments(DECCW 2010) Code of Practice under the Coastal Protection Act 1979 A Guide to the Statutory Requirements for Temporary Coastal Protection Works(DECCW 2010) A guide for authorised officers under the Coastal Protection Act (DECCW 2010) Guidelines for preparing coastal erosion emergency subplans (OEH 2011) Guidelines for assessing and managing the impacts of seawalls(DECCW 2010) Coastal Protection Service Charge Guidelines(OEH 2011) A manual of coastal dune management and rehabilitation techniques (DLWC 2001) Lake Macquarie Coastal Zone Management Plan 7