Wamberal Beach erosion following this week's storms. The Gosford Beaches Coastal Zone Management Plan (CZMP) contains an action to progress a long-term solution for Wamberal Beach erosion. The Gosford Beaches CZMP outlines actions to address the erosion risks at Wamberal Beach. The coastal economics assessment will be help guide the development of possible funding models. Coastal erosion is a way of life in Wamberal, north of Sydney. Council successfully lodged a grant application in August 2018 to the NSW Government for funding the investigation and design phase of a preferred long term (seawall and sand nourishment) solution. An Environmental Impact Statement (EIS) for the coastal protection solution was finalised in 2003 by MHL, which found that a seawall with periodic small-scale sand nourishment was acceptable. This is because all of the seawall options would result in the loss of beach areas, and without sand replenishment the beach would quickly disappear, with significant costs to the local tourism industry. Your attention is drawn to the provisions of the Government Information (Public Access) Act 2009 which allows for possible access to certain public and personal documentation. The $400,000 study is being funded by both the state government and council. 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. The program of works would be delivered to appropriate coastal engineering standards. Climate change impacts are also being considered. A targeted coastal economics (cost benefit) assessment is underway as part of the MHL coastal engineering project. However many seawalls on the Australian open coast are over 100 years old. July 17, 2020. Instead it continued to approve development, requiring new homes to have deep piles into the sand. Wamberal Beach Terminal Protection and Sand Nourishment - Investigation and Concept Design This project is currently open for consultation. The plan was certified by the Minister for the Environment in May 2017 and identifies several key management actions for Wamberal Beach, including: Were the community consulted through the CZMP? 18 homes at Wamberal will be evacuated today, as wild seas continue to batter the Central Coast. Wamberal Beach Terminal Protection and Sand Nourishment - Investigation and Concept Design. In May this year, Central Coast council commissioned Manly Hydraulic Laboratory to design a concept plan for a seawall solution. More Details: https://7news.link/2WsY2Mx # Wamberal # 7NEWS. What is the MHL coastal engineering and economics study? It's located beside the popular Terrigal Beach. Residents from Wamberal Beach on the NSW Central Coast have been evacuted as homes collapse due to severe erosion of sand dunes. The Central Coast Council has also urged the NSW government to fast-track recommendations of the Wamberal Beach Management Options: Cost Benefit snd Distribution Analysis Report finalised in 2017. As the Central Coast of NSW braces for another lashing today, the state government is still sitting on another report by the NSW coastal council, commissioned by the local government minister, Shelley Hancock, which looks at the vexed problems of seawalls and coastal erosion in the state. Extensive beach erosion occurred in May 1974 and many houses were threatened. Comment has been sought from Central Coast council. 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. From Terrigal Lagoon to the Wamberal Surf Life Saving Club, the beach is backed by rocks, building rubble and other works. The placement method is somewhat dependant on the method of how the sand is extracted elsewhere and transported to the beach. Therefore, any sand added to the beach system through nourishment will remain within the natural system for some time (although it may move back and forth between the dunes, beach and surfzone). “However, in the longer term, more properties in this area are likely to experience greater damage and loss of property values from the increased flooding of Terrigal lagoon associated with sea level rise. Sand nourishment involves placement of sand on a beach to combat against erosion and improve beach amenity. Terrigal lagoon sits directly behind Wamberal beach and currently drains into the sea … The beach at Wamberal was vulnerable to erosion long before the homes, the homeowners, and even before their ancestors first turned up. “The key beneficiaries from construction of a seawall are the approximately 60 owners of beachfront properties at Wamberal.”. The next steps for Wamberal Beach are as follows: Who will pay for the delivery of the long term (seawall and nourishment) solution? An east coast low has whipped up the strong waves for several days, causing erosion. The Gosford Beaches Coastal Zone Management Plan (CZMP) outlines a terminal protection structure (seawall) and sand nourishment as the preferred course of action for managing identified coastal hazard threats at Wamberal Beach. 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 beach rema ... by Lydia Bilton | NBN News-News, Sport & Weather There are several financial questions that need to be worked through prior to the delivery of a long-term solution for Wamberal Beach. Sand can be delivered to the dry beach face or placed underwater in the surf zone. 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. In the late 1990’s a range of coastal protection options were proposed by WRL (1998) for Council. However, the decisions were made hastily and without extensive community consultation. Wamberal on the NSW Central Coast has been hard-hit by beach erosion after the coastline was smashed by strong winds and wild seas. Coastal Zone Management Plans (CZMPs) identify coastal management issues and the actions required to address these issues. Wamberal Beach has a long history of coastal erosion, with beachside infrastructure exposed to impacts from coastal storms. Dr Phil Watson has been appointed as the Chair of the Taskforce with Council’s CEO, Member for Terrigal Adam Crouch MP, representatives from the Department of Planning, Industry and Environment, and Council’s appointed project manager. Wamberal Beach has been long recognised as a ‘hot spot’ for erosion, with several major storms threatening coastal infrastructure over a 50 year period. sea level rise). Sand nourishment is central to the long-term solution being investigated. In addition, workshops were held with the Council’s Catchments and Coast (advisory) coastal sub-committee established at that time. Council is looking into the costs of potential erosion solutions and potential funding models. The current coastal zone management plan for the Wamberal beachfront (and other coastal areas) is the Gosford Beaches Coastal Zone Management Plan. The Taskforce meets on monthly basis. How will the terminal protection structure (seawall) component of the long-term solution impact the beach? Another company, Royal Haskoning DHV, looked at short-term measures. Developing a methodology that can support the coordinated delivery of an embayment-wide solution across a mix of private and public land is one of the key challenges that needs to be worked through. “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”. (Nine)Wamberal on the NSW Central Coast has been hard-hit … for my Assessment is the Erosion at Wamberal and Terrigal beaches. The management of coastal erosion by Central Coast Council is guided by the management actions within the Certified Gosford Open Beaches Coastal Zone Management Plan 2017 (including the Emergency Action Sub-Plan for Wamberal). The preferred long-term solution for Wamberal Beach includes a sand nourishment program to ensure long-term outcomes for Wamberal Beach. Whereas Terrigal Beach attracts large summer crowds, Wamberal is quiet and spread out. Since that time Council has actively pursued a coastal management strategy for Terrigal/Wamberal Beach to secure development while protecting the recreational beach amenity as a community asset. 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). speaking with project staff and coastal experts, at a community drop-in information sessions, seeking your feedback on the draft concept designs developed. There are many technical, financial, social and environmental complexities that need to be worked through to develop the long-term solution. 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. 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. Beachfront homes are at risk of collapse and Wamberal residents have been advised by the NSW State Emergency Service to evacuate. 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. Sand nourishment can involve placing small or large quantities of sand into a beach system. We will be seeking the communities experience and input again through the current MHL coastal engineering and economics study that is underway. More information on the Wamberal Seawall Advisory Taskforce is available on our website. Beach erosion continues after heavy seas lashed Wamberal Beach on the NSW central coast. Indeed, the solution is complex - requiring input and agreement from a number of parties. Where will the terminal protection structure (seawall) be located? Will land be purchased if a terminal seawall is built on private property? Any long-term solution must be technically feasible, legally permissible, environmentally and socially acceptable and financially viable. Two storms in the 1970s – in May 74 and June 78 – saw several houses on the strip claimed by the sea. The community were consulted as part of the Gosford Beaches Coastal Zone Management Plan (CZMP; 2017), and preceding Coastal Zone Management Study (CZMS; 2015). Marsden Jacobs said it was not clear which seawall option would lead to the fastest loss of the beach but all would result in an unusable beach by 2064, without a major sand replenishment program, “The cost of sand replenishment is very high and outweighs the benefits of retaining a beach in front of a seawall,” it said. Terrigal and Wamberal beach coastal hazard map (.pdf document) Gosford beaches coastal zone management plan (.pdf document) 3 April 2017 Letting properties slide into the sea is politically unpalatable and the cost of buying up the waterfront properties far more expensive than it was 50 years ago when the first problems emerged. When the beach system naturally recovers (builds out) over time, the rock and rubble become buried. There is no guarantee that all the factors required to facilitate the seawall and sand nourishment solution will be satisfied. develop a methodology for implementing a long-term solution, that is legally permissible, environmentally and socially acceptable and financially viable. How much will the proposed program of works cost. Gosford City Council formed a coastal committee in 1984. 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. But as more houses slouch into the sea, locals accuse the council of dragging its feet on a … The life span of the proposed program of works will be designed to consider future climate change (i.e. In May 2020, Council engaged Manly Hydraulics Laboratory to prepare concept plans for a terminal protection structure (seawall) and sand nourishment solutions for Wamberal Beach. Watch the full report in the video above. At this stage, concept designs for a terminal protection structure (seawall) and sand nourishment solution are being worked through. The life of any structure would be determined through the detailed design process, which is the next step. Council understands that the best coastal erosion management solutions are developed when state and local governments, residents and the broader community work together. There are many steps to work through before a long-term solution can be implemented at Wamberal Beach. 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. The NSW Government established the Wamberal Seawall Advisory Taskforce on 31 July 2020 to provide Council with support to implement a sustainable long term solution to coastal erosion issues at Wamberal Beach. Following the July 2020 storm event which saw the emergency response place 2,400 tonnes of large rocks, over 2,000 tonnes of rock bags and 4,000 tonnes of sand along Wamberal Beach, the NSW Government Wamberal Seawall Advisory Taskforce was set up to provide technical advice and assistance to Council in progressing a long-term solution for Wamberal. On public land or private land? Sand nourishment requirements, resources and cost estimates are being looked at through the MHL study. 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. The seawall footprint from the previously approved Wamberal terminal protection structure was located across a mix of private and public land. 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. TW15:  Beach nourishment coupled with a terminal revetment to increase the buffer against storm erosion. Recovery works continue at Wamberal Beach following severe erosion which saw homes partly crumble into the ocean back in July. It is important to understand that while sand nourishment coupled with a terminal protection structure (seawall) has been identified as the preferred long-term solution for Wamberal Beach, the Gosford Beaches CZMP does not provide for the construction of a seawall. A technical study is being progressed to provide options to more sustainably manage the erosion threat over the longer-term. 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. “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.”. Seawalls on open coast environments, like Wamberal Beach, typically have an initial design life of 50 years. 211K Views . 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