collaroy sea wall protest

The local community group has been protesting against a seawall for almost 30 years. Great article highlighting the competing interests of the natural environment and local councils (which are too easily manipulated by wealthy stakeholders). It might take a bit of digging to prove it, but the evidence is accumulating already. Whether the NSW state government / local council want to backflip with a pike on their current failing seawall master plan is another thing. nothings going to stop him on his daily dip. Google "End-wall effect erosion" and you'll find many papers/studies on this. We have trouble performing numerical analysis on complex near shore environments, so what we'll do is create a slab sided wave tank with perfectly geometrical structures and wave forms and see what "actually happens". This clearly did not happen at Collaroy. I think the re-sale value of their properties trumped their ability to access the from their back garden. Engineered to Australian Standards. (This statement also doesn't specify what type of HARD structure. As a result, dried out sediments are carried by the wind towards the land. However, a few queries regarding your post: "Sure if youve bought the last 5 years ignorance cant be an excuse" - why does five years give one grace? Owners, Council and 'engineersshame shame shame. "Brendan Donohue, President of Surfrider Northern Beaches, has been talking to us about their famous Line in the Sand protest against the Collaroy/Narrabeen Seawall 18 years ago and we are very excited to replicate that campaign on the Central Coast in the not-too-distant future," Phillips said. Councils of times gone by should never have approved houses to be built on the beach in known spots of erosion aswell as houses on the beach full stop as sand dunes have there purpose . Those first couple of staircases looked fucked. This is where I live. You may not realise that there have been large volumes . High-quality Collaroy Beach Wall Art designed and sold by artists. The best thing about it is that you can output actual 3d animations of the simulation so that EVERYONE can understand the results. "We haven't had a flood here for 20 years you say. My understanding is that the hard seawall was constructed with the specific intention to protect the private property behind the wall. Can somebody please sack almost ALL so called coastal engineers for Fuck's sake! Actually I do understand why the council doesn't research an alternative to a concrete wall, because it's easier to build a wall, something humans have been doing for thousands of years, we're good at it. We have summarised some key facts about the first of the Collaroy owners' seawalls. This is a big money problem way beyond the scope of local councils. I think the wall is actually a good warning of exactly what governments mean by "adaptation and mitigation"..expensive projects for the construction industry rather than sound ecological management. "The community is not happy." Northern Beaches Council said there had been comprehensive community consultation about the council's coastal zone management plan for Collaroy Beach. If a construction like that ends up being the only realistic option then so be it, but at least they need to be transparent about how they got to that point, and ideally accountable in future if it goes south. Although ill be constantly monitoring the situation and around at cathedral the beach profile has certainly been getting steeper. the above-average wave heights and elevated water levels are to blame. It's corrupt to the eyeballs and the only winners are the crooked pollies and the dodgy construction companies while the once beautiful Japanese coastline is lost forever. In Japan, their solution is to just go bigger and higher . It pisses me off that people wilfully or ignorantly choose to buy in areas that are not for purpose, enabled by the property industry and then scream out for taxpayer help when the inevitable disaster occurs. I hope this Collaroy wall hasn't set a precedent. There's only a loss to be made for the purchases. https://www.linkedin.com/mwlite/in/peter-horton-coastal-engineer. https://www.sydneycoastalcouncils.com.au/sites/default/files/JRCorkill_A(2)_Prop_L_Rev_67-84.pdf, yes, Blindboy, I am guessing they had absolutely no input on the final [or initial] design what-so-ever as they were only used as a consulting service by the Coastal engineers. Vertical Seawalls Vertical seawalls are exactly what you think. This wicked problem is a result of intergenerational dumbness. Confirming that they were involved in the initial design only. At what point are they a write-off? "Once this is up it'll be a momentum for others to do it too," said Orth. Step 5: Construct the Seawall. However, the residents focused primarily on the protest against the sea wall while not suggesting any alternate solutions to solve the coastal erosion, and therefore, failing the 3rd criteria. The role of the council in all this might come out if people push hard enough. My NSW water buddy says MHL are coyboys. No fuckers complained about the rebar reef. Isn't an extension to the Point Cartwright breakwall on the cards aa well? My comment was maybe too obscure but was meant to be sarcastic. Such a shame that it's not like California or other US states where the owner has no right to protect their land from erosion etc. Only thing that would be better if they made a foot path on top of it so wheel chair bandits and a like get to use the cost line as well, "Or boarding a jumbo jet to go for a surf and buy the latest board all things responsible for the needing of the wall in the first place.". Ratepayer/taxpayer bailout, so business as usual whatever happened to caveat emptor? Yep totally agree. That video represents a nightmare scenario, no beach, no waves and similar to Zen's story ie man made interference gone wrong. Yet for some reason the Collaroy/Narra stretch seems to get flogged not only by mother nature but by poor coastal management approaches time and again. As far as I know their job was to asses the designs given to them by the Coastal engineers, not to actually create any designs. The most notable benefit of sea walls is that they provide excellent protection against coastal erosion and flooding. Sorry to sound pedantic but we should clarify exactly what we mean by "Hard Structures" as it's too general a term. In one of the pics you see plant equipnent tearing up the beach in preparation for constructing a wall. Their ultimate solution was a combination of 3 things- a rock boulder seawall buried in the dunes as a final line of defense in extreme erosion events to protect private properties behind (this seawall actually runs for the full extent of the Gold Coast nth beaches but is rarely seen as it is completely buried under dunes/vege), an offshore reef, also rock boulders, to attenuate wave energy under normal conditions thus widening the beach in its lee, and lastly- sand nourishment, adding more sand to the beach system. Precarious! consultant reports and community consultation no doubt funded by state money. Collaroy has a long history of property erosion, yet a century after it was first documented theres no consensus about how it should be managed. they will use loop holes to ensure eligibility. Imagine the carnage during the next ECL. Not sure how they would fix them to the sand though. The 18-year-old scored a near-perfect 9.50 in the Final, held at Seaside Reef in Encinitas, California. Basically the awarding of contracts falls across a couple of ministries. Link any useful papers youve found. I have to disagree. They have just set a precedent for the whole east coast of poor me multi millionaire landowners to set up squeaky wheel collectives. Owners of storm-devastated Collaroy properties on Sydney's northern beaches face paying up to $140,000 each for a new sea wall that might have saved their homes had it been there at the weekend. I'm a huge tree-hugger but they will not stop powerfull ocean waves. If you look at the photo of the wall there appears to be a set of stairs built into the concrete for each property. a report a number of years ago by the Great Ocean Road Coastal Committee, GORCCshowed there were more than 47 areas that were of immediate concern where the ocean would cut the road. Went down for a look and its a fucken disgrace. And since there's been no budget allocated for future buy backs. The council now will not release the relevant documents without a formal application and even then would no doubt find reasons to withhold the significant parts. sea wall is perfect. This forms a foredune and a backdude. Some family recently went through this as their house sat above the construction zone for the Spit / Northern Beaches Link tunnel. Pretty incredible and frightening stuff. A quick trip Todos Santos way during a belting nor'west swell. Hey guys I need to write an informative paper based on remedial measures used to protect infrastructure against erosion. Criticism of the debris left on the beach, the erosion as the sea ran up against the wall and drew away all the sand during January 2022 swells and the manner in which these works have been carried out prompted council staff to investigate a number of times during the heavy swells, and has been under regular inspection since then. Children protest the building of a seawall at Collaroy-Narrabeen in 2002. How was Collaroy Beach made? Pre-existing or failing seawalls (if any) should be removed as part of Step 2. Unfortunately groynes or artificial headlands are not part of the certified Coastal Zone Management Plan CZMP (2014). I was watching the houses on the cliffs at Bilgola the other day. I definitely disagree with a buy back. bit of a worry but, when you buy a nice piece of land by the ocean in high risk erosion zone..why do tax payers have to buy the property back,,,surely the owner knew the risks ? Would be really good to see an article on the current state of affairs in the Coastal engineering world. A barrier reef in place would no doubt have knock-on effects. Now digging up the facts of this case would prove fascinatingthe applicant, the judges, the arguments, the ruling etc one if there is precedent for seeking compensation for judicial rulings made in error. Craig - we are expecting you to be down there at High Tide 11pm tonight with your Torch and Box Brownie for some more pics, Nah wait 'til tomorrow mornings high. Spot on tango. Gold Coast City Council had a similar problem to Collaroy at Palm Beach Qld. Scientists need to be able to communicate the results of simulations/tests in a way everyone gets, not just a bunch of numbers. https://www.dexpan.com/pages/how-to-use-dexpan-break-concrete-rocks-easily. Wetsuits may never be the same again. What they fail to mention is the massive corruption that's involved in awarding these contracts and the fact that the construction companies themselves for the most part, are predominantly Yakuza. The Collaroy seawall was in part constructed after a significant storm event in 2016 eroded 50 metres along the Narrabeen and Collaroy shoreline, causing damage to waterside properties. Beaches like Bondi still had sand dunes and likely better banks all around. I have written to the Office Of Local Government about my concerns over the hiding of the second DA. The beach has remained under threat since that time, with additional erosion occurring during subsequent storms. Brendan Donohoe says the beach has been "permanently disabled. https://files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na Collaroy Stormwater Pipe Outlet Please please please don't let those greedy fucks do this to Australia. That 3-4x the height of the curved revetment? Take a chill-pill mate, or possibly the whole packet as it appears you need them. Japan may be a perfect case study. It's propped up by the NSW and local governments way beyond the importance or value of that stretch of private land. The UNSW Centre is called the Water Research Laboratory. Like Stockton, the Collaroy seawall has resulted in the loss of the beach immediately in front of the wall caused by the dissipation of wave energy. It just doesn't make the engineering firms any money or contribute to gross state product under the current economic system. Insurance companies know this. I guess that the levees will give me a 100% guarantee that it'll never happen in my lifetime". Not much wriggle room for negotiation, and in a volatile market owners are more liable to be offered (and it's an offer they can't refuse) recompense that sits at the lower end of the scale. Mr Horton said current conditions have exposed a temporary rock bund that was put in place to protect the construction site, but it will be removed when works are complete. There is a common denominator here, "Coastal" engineers with a lack of knowledge and understanding of coastal processes. Or as the comment above lists - quoted by Prof Short - not let the property developers and real estate industry interfere with good management strategy decades ago that would have avoided council being left with a steaming pile of shit. there is no excuse for purchasing a property on the beach in the last 30 years let alone 5 without an inkling of understanding of the risks. Isolated, desk top engineering at its finest. I mean, did someone forget about the old idiom about 'shifting sands' or what? On the MP they blew the heads up and the erosion from Portsea front beach to the heads is crazy. In 1974I witnessed what cyclonic ocean power can do to ignorantly planned beach development 50 years on and a lot of sea miles under my belt. Collaroy sea wall. It certainly doesn't make it the best decision though. On the release of his latest edit, R-Cal chats to Swellnet about love and other acrobatics. You got to have demand/competition in order for a buyback to increase value of supply. Will be interesting after another summer if potential strong easterlies due to the La Nia. Lance any surf info about Middleton Reef ? I doubt there will be a demand for the effected given the inevitable. Interesting to see if the slowed (design of) sand migration has had any knock-on effect for the likes of Tallebudgera- Burleigh and beyond. More than likely entombed in one of those tetrapod molds you mentioned above. Surfers, sun bathers and swimmers. The public should not suffer loss of amenity or pay the costs to protect it. Great article.. https://www.smh.com.au/property/news/coastal-properties-at-highest-clima @Craig Joint Venture adopts new name, Te Puna Aonui. Please include direct and indirect costs. Good point, however wouldn't a potential buyback theoretically drive the price up? Your browser has JavaScript disabled. There is a significant risk that, as Craig suggested, end wall erosion will simply move the problem and lead to calls for extending the wall. Perhaps off topic in relation to the above story but thought this video was interesting in regards to how certain structures change the amount of erosion and inundation behind structures from wave/tidal run up. Collaroy's existing situation is precarious at best. Any chance of a dedicated ErosionCam, Swellnet? Yeah nah. My experience with compulsory acquisition had to do with a Sydney motorway a few years back. For example, during sunny conditions in Collaroy beach, constructive waves transport eroded sediments from cliffs and headlands to build up the beach. https://lighthouse.mq.edu.au/article/september-2021/Living-Seawalls-in-g 5 min [P] Call of the Wild skinny dip at yer local Sea-Walljust doing wot comes natural! There's been a lot of work done to gain a better understanding of the value of the beach re both market and non-market economic benefits. I no longer live in the area but just can't believe it has progressed so far without anyone noticing. A bit like asking journos writing about climate change to include references scientific papers talking about how CO2 is a greenhouse gas. Collaroy Sea Wall With such close proximity to the ocean, our client tasked us with producing an alternative to the commonly used polystyrene forms. The council had an interest in preventing future erosion impacting Pittwater Rd, the main north-south artery on the NB. Sure, but wowee regarding that huge backwash and wave entering back into the surf zone. Didnt hear boo about that from anyone ? I first noticed them when I went to Nijjima island in the early 90's and asked what were they reply was to protect the land from erosion.they actually had the moulds for the TP's there and just kept making them when needed.. It never stood a chance. Yep pretty significant increase in the height. Everything else may go but that wall is here to stay. The fucking vandals bulldozed down one of the last remnants of coastal heath to get their heavy equipment in. The area has been slowly receding due to storm damage - theres evidence of erosion dating back to the 1920s - while at the same timebeing intensely researched by coastal geographers. Hear, hear! At this point, the relocation business case doesn't seem to stack up. I do know the metro area was excluded from the NSW Coastal Policy for a long time because it was seen as too difficult, and that the CLPS was focussed on environmental values. Might be time to lawyer up. However, theres an irony that could've beenliftedstraight out of a script for Utopia. I think they would be very happy with an ugly seawall. I think they saw an opportunity to get landowners to pay for something that they would very likely have to do at some point anyway. Just last March of 2019, the Northern Beaches Council succeeded in convincing the State Government to chip in on the assistance package to be given to Collaroy residents for the construction of the sea wall. The recently constructed Collaroy seawall yesterday failed - or passed - its first real test, depending on which side of it you stand. During periods of low swell energy, sand accumulates on the beach, widening the profile and forming a natural barrier for when storms and large waves erode the coastline. Seawalls of this design have been shown - all over the world- to destroy beaches. Anyone who has been to Chiba in Kanto will have seen the Tetrapod formed surf breaks there. Wow Zen saw those photo's , it's really sad that they couldn't come up with something else , which raises the question.what other alternatives are there??

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