Indeed, the solution is complex - requiring input and agreement from a number of parties. The coastal engineering and economics study underway is being co-funded (50:50) through the NSW Coastal and Estuaries Grants Program. When Wamberal is in an eroded state, the ad hoc protection materials interact with the waves. How can the broader community have their say? The coastal engineering and economics assessment currently underway will update the Wamberal Beach cost benefit assessment (CBA) completed by Marsden Jacobs for the State Government in 2017. Another company, Royal Haskoning DHV, looked at short-term measures. Seawalls on open coast environments, like Wamberal Beach, typically have an initial design life of 50 years. The Gosford Beaches CZMP was prepared in line the state government legislation, and in consultation with the Central Coast community. More information on the Wamberal Seawall Advisory Taskforce is available on our website. A cost-benefit analysis of options for a seawall at Wamberal beach commissioned by the New South Wales government in 2017 found that none of the six engineering options considered would deliver a net public benefit and that erosion would only increase with rising sea levels. Sand nourishment involves placement of sand on a beach to combat against erosion and improve beach amenity. Funding however could not be secured and the approved protection works did not progress further. Manly Hydraulics Laboratory (MHL) were engaged to complete coastal assessments and develop concept plans for a long-term solution for Wamberal Beach in May 2020. Has Council applied for funding from the $83.6 million available from the State Government’s Coastal Management Grants Program? A CZMP Community Engagement Strategy was developed and endorsed by Council in November 2013, this document guided consultation throughout the CZMS – CZMP processes. The Marsden Jacobs study on Wamberal was informed by a detailed study by the then-NSW Office of Environment and Heritage, which found that the coastal processes acting on the dune that separates Terrigal lagoon from Wamberal beach – and where the most vulnerable houses are located – are complex and will get worse with sea level rise. Who decides if the proposed terminal protection structure (seawall) and sand nourishment works program is delivered? Why is Council investigating options for a terminal protection structure (seawall) and sand nourishment Wamberal Beach? A report says a trade-off of protecting about 60 beachfront properties with a seawall would be a potential drop in visitors due to loss of the beach. The NSW Government has laws in place that guide how the NSW coastline is managed. Two storms in the 1970s ruined several homes, a point at which the council declined to buy back the properties and instead continued to approve development, The Guardian reported. However, the decisions were made hastily and without extensive community consultation. Technical, financial, environmental, social, legislative and land ownership challenges must be addressed. Coastline Management Plan “Higher sea levels will result in the increasingly frequent inundation of hundreds of properties surrounding the Terrigal lagoon, the loss of the beach, and impacts on council assets such as water, electricity, sewerage and roads,” it found. The coastal engineering assessment is looking at proposed terminal protection structure (seawall) alignments for various concept options. “a terminal protection structure in the nature of a buried rock revetment is to be designed and constructed to the satisfaction of Council and NSW Public Works, such construction to occur as soon as practicable and in an orderly, co-ordinated manner”. Unlike the MHL assessment, detailed costings were not available for the preliminary CBA completed in 2017, as the options considered in that study were not progressed to a fully developed concept design stage. At this stage, concept designs for a terminal protection structure (seawall) and sand nourishment solution are being worked through. “Only a Planned Retreat option (Option 8) -retreat by managing the duration, type and intensity of future development within the coastal hazard area – provided greater benefits than a continuation of the current approach.”. The coastal engineering study currently underway is looking at behaviour at Wamberal Beach and assessing coastal and environmental impacts from the proposed program of works, including the impact on public access and beach amenity both now and into the future. Finding a solution that strikes the right balance is not straight forward. The $400,000 study is being funded by both the state government and council. Asbestos and other building waste has been unearthed along Wamberal beach following severe erosion. What is the role of the Wamberal Seawall Advisory Taskforce? 211K Views . More information on the Wamberal Seawall Advisory Taskforce is available on our website. The beach at Wamberal was vulnerable to erosion long before the first homes were built. At that stage the council could have bought back properties. Name wamberal-lagoon-nature-reserve-plan-of-management-930003.pdf The nature reserve encompasses one of the best remaining examples of coastal lagoon, wetland and barrier dune on the Central Coast. The scope of the Taskforce is ‘advisory’ in nature. Wamberal Beach has a long history of coastal erosion, with beachside infrastructure exposed to impacts from coastal storms. Beachfront homes are at risk of collapse and Wamberal residents have been advised by the NSW State Emergency Service to evacuate. Whereas Terrigal Beach attracts large summer crowds, Wamberal is quiet and spread out. Four years later in June 1978, beach and dune erosion attributed to an intense rip cell undermined and destroyed two houses at Wamberal (Plate 1). Feedback for phase one community consultation was accepted between 9 November and 7 December 2020. develop a methodology for implementing a long-term solution, that is legally permissible, environmentally and socially acceptable and financially viable. “A seawall will provide benefits to beachfront properties by reducing the impacts of coastal processes,” the report by Marsden Jacobs found. Management of Coastal Erosion Emergencies in Local Government Areas Peter Horton, WorleyParsons. The beach rema ... by Lydia Bilton | NBN News-News, Sport & Weather These two beaches are located near Gosford, 80 kilometres north of Sydney. All levels of government quickly mobilised behind a plan to build a seawall on Wamberal, to stymie future erosion. Yet there remains concerns about both the environmental impact of seawalls and how they will perform in the future. The CZMP outlines a preferred protection solution (terminal protection structure) and the technical studies needed to inform further decision making, but it does not provide for the delivery of a seawall and sand nourishment. view the frequently asked questions available below, TW11: Terminal protection- Council to action review, design and funding of terminal protection structure for Wamberal, TW14: Investigation of sources of sand and determination of the feasibility of beach nourishment for Wamberal Beach. This funding would be the catalyst to really tackle the complexity of erosion at Wamberal Beach. The study will include: This study will allow Council and the community to make an informed decision on the best combination of protection and sand nourishment options for Wamberal Beach. The beach at Wamberal was vulnerable to erosion long before the homes, the homeowners, and even before their ancestors first turned up. However, the key beneficiaries (i.e. On 29 January 2019, Central Coast Council resolved to work with the NSW Government to progress designs for a terminal protection structure (seawall) at Wamberal. continue with the coastal engineering and economics study looking at concept option and feasibility for implementing the Gosford Beaches CZMP actions, continue to consult with the community on erosion solutions for Wamberal Beach at all stages of the study, continue to participate in the NSW Government Wamberal Seawall Advisory Taskforce. Terrigal lagoon sits directly behind Wamberal beach and currently drains into the sea … Council has no planned retreat policy. Mr Persson said he had been administrator for three councils with significant coastal erosion issues, however none were as great as the problems at Wamberal. However, in the absence of a long-term solution the risk of further erosion impacts will remain. Sand nourishment is central to the long-term solution being investigated. Erosion at Wamberal has been a problem since before the first homes were built there. There are no plans in place to purchase private property. There are many stakeholders involved in this decision-making process including: Council, NSW Government, beachside property owners, interest groups and the broader community members. Any long-term solution must be technically feasible, legally permissible, environmentally and socially acceptable and financially viable. Council will be engaging with the Wamberal and broader Central Coast community throughout this project. (9News) Related. The preferred long-term solution for Wamberal Beach includes a sand nourishment program to ensure long-term outcomes for Wamberal Beach. Gosford City Council formed a coastal committee in 1984. You can get involved now by: The concept designs will then be placed on public exhibition providing an additional opportunity for the community to provide feedback. But as the Marden Jacobs report detailed, the trade-off from protecting about 60 beachfront properties with a seawall would be the potential loss of visits due to the loss of the beach. Council are looking at options to improve the community access and beach amenity condition, as part of the long term solution. Following days of powerful surf barrelling towards beach-front properties, severe beach erosion is occurring at Wamberal. 7NEWS Sydney. On public land or private land? View our privacy statement. This earlier study assessed the economic merits of the generic coastal management scenarios for Wamberal Beach. Council has been working with the community on a long-term management solution to the Wamberal Beach erosion issue for some time. The next steps for Wamberal Beach are as follows: Who will pay for the delivery of the long term (seawall and nourishment) solution? public exhibition of draft documents (CZMS, CZMP), CZMS - targeted community presentations to discuss potential management options for each study area, including Terrigal/Wamberal (2015), community drop-in sessions (include at Terrigal SLSC; 2015). Other schemes, at Collaroy, have involved subsidies from state and local government, with waterfront home owners still facing $400,000 bills to build the wall. July 17, 2020. The Taskforce meets on monthly basis. Rocks and rubble have been placed along the back of the beach by various governments and individuals during this time. These materials have been placed in front of the erosion scarp by various entities since the 1970’s. 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