The UNSW Centre is called the Water Research Laboratory. Surely going to get all crazy reverb and backwash stripping their sand more rapidly as well. Some investigative journalism required to obtain all the council documents around its approval process. Yea I agree with this. I wouldnt have thought there would be much fetch? 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. Lake that has been going on for the last 20 years. 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. Damaged houses and a collapsed swimming pool at Collaroy beach after waves of up to 8 metres hit the coast on June 6, 2016. The Gold Coast has undoubtedly the most at risk coastline in Australia. The erosion at Collaroy/Narrabeen Beach is not particularly significant, unusual or surprising. For those who may not know, the private land issue is complicated in NSW in particular (less so in other states) by the existence of ambulatory land boundaries which are set at various levels of the tide eg mean high water. They are multi millionaire asset owners. All the sand has moved south east where previously there were great rock lagoons there is now 100 metres of sand dunes. An "Engineer/s" designed this monstrosity and other "Engineers" approved it. And I previously worked in a firm that did work in this area (it's not my specific expertise but I get the broad concepts). The group aims to raise awareness of the impact that the building sector can have while pointing out that more drastic measures need to be taken, as most countries do not include full building. Ignorant clown" Last Wave inalways team up with surf buddies to safely exit yer local Seachange Monstrosity. Those days are gone, but we can make the future even better IF we use our brains like you say! No more excuses for your terrible workmanship anymore. >>How can you say there is no evidence unless you have the facts to prove it? I've looked at the general location plan of the cables and it seems there is a good say 500m- 1000m distance between groups of them along the beach, and they are buried for the first 500m out from the shore, so I would say there is a good chance of working within those areas in consultation with the cable authorities. At what point do we put an end to this insanity. Yep. The problem is one of vertical fiscal imbalance. This is very different to Collaroy. @dawnperiscope The matter is currently under investigation by Environmental . https://www.swellnet.com/comment/772908#comment-772908. If he is an expert and this is what he designed, then I shudder to even imagine what the non-expert coastal engineers would design. Well, it (and a lot of us) could possibly be in for a real test within 3-5 years with the Thwaites Glacier (Doomsday Glacier) suggested to be at risk of sliding into the sea and potentially raising sea levels by 65cm. Sorry to go hard on your story like that but I feel we need to keep the science at the forefront of all coastal engineering discussions. Here's the Maritime Safety Queensland website link and here's what appears to be the numerical modelling report upon which a lot of decision-making on the issue is based. Our timber guide wall formwork is not only reusable and 100% recyclable, it also prevents dangerous polystyrene fragments from entering the ecosystem. Why would you bother acquiring the affected properties "at any cost", when they're likely to be washed into the sea? Thanks Stu, didn't even know such a thing existed here. And find outwhy you'll soon hear a hell of a lot more about them. Collaroy seawall project | Protection from coastal erosion Watch on Location: Collaroy NSW Our specialist staff were engaged by the Northern Beaches Council to construct the 250m rock revetment seawall in front of the Collaroy Beach carpark. Rad demo john interesting as Craig said to see the changes in shock waves returning seaward. On top of this they have places sand band grounds out perpendicular to the sandunes. Photograph: Wendy Harmer Coastal municipalities have been tackling the problem with a suite of measures. So whats your thoughts about using tax payers $'s to buy back endangered properties from natural erosion and as I asked Zen.are there any solutions other than just moving people property back from the Coast? The whole buy back argument being too expensive is a crock of shit. and the sick irony of the beach access sign detailing the seawall works with all "enquires to be made In the others, you can see a part of the wall under construction. The Collaroy wall is not subtle. " Yep pretty significant increase in the height. It's eroded locally at present, lots of rocks revealed on low tide but it's also end of winter. the hardest decisions should be the easiest. Might discuss that with @surfriderfoundation and Surfrider Foundation Sunshine Coast, and those people and localised groups finding themselves in positions of having to fight this idiocy. Structures appeared. On the release of his latest edit, R-Cal chats to Swellnet about love and other acrobatics. Willi, how would easterlies impact the Great Ocean Road coast? Sorry wasnt specifically referring to collaroy which I completely agree has been a known and long term problem. Premium ad-free surfcams, dawn surf reports, and more https://www.sydneycoastalcouncils.com.au/sites/default/files/JRCorkill_A https://www.surfline.com/surf-news/theyve-kerbed-guttered-narrabeen-beac https://www.scs.nsw.gov.au/soil-conservation-services-projects/collaroy- https://files.northernbeaches.nsw.gov.au/sites/default/files/documents/g https://files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na https://www.northernbeaches.nsw.gov.au/council/news/whats-happening-coll https://www.linkedin.com/mwlite/in/peter-horton-coastal-engineer, https://www.facebook.com/watch/?v=144437777895204. Large waves have a lot of energy and must be forced to break further out to sea to dissipate the energy before reaching the sand shoreline. 3) How much has Council spent on legal fees defending Land & Environment Court appeals related to seawalls since the 2016 storm? It also enshrines a process of community consultation before a council adopts any coastal programs. But unlike a rock revetment at Stockton, which gradually collapses into the beach, Collaroy's sheer concrete wall relies on deep foundations to stabilise it. Its an issue the whole coastline, councils desperate to get what is a liability off their books and some homeowners, beachfront, genuinely caught out by it. OK this is the real one. Collaroy homes along Pittwater Rd have been cordoned off today. Apparently this is just one part of the seawall. Five years ago, residents along Collaroy Beach watched helplessly as enormous waves smashed into their backyards, collapsing pools and patios of their multimillion-dollar waterfront properties. 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. I can't believe that those structures have been built in 2021 and that the legislation still hasn't been amended to counter the property rights of the owners. You would never be allowed to build an incorrectly designed bridge, so why do these people get away with doing that at our beaches ? You said "They get paid to do what they are told to do" Were they told told to design a system that would not work for the purpose and only exacerbate the problem? This wicked problem is a result of intergenerational dumbness. Maybe "Collaroy" is the aboriginal word for "Stupid White people"? "The only feasible way forward without wasting any more council and tax payers money to protect the properties in question is to acquire the properties at any cost and return them to a naturalised stated." 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. 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. Market value is driven by what people are willing to pay for it. Im not trying to be a dick about it. Also, it's a not so secret secret, anyone who speaks out about this have been known to disappear. Proven time and time and time again that sea walls do not work- period. We can mess things up in a colossal way, and then keep doing it repeatedly. There are many software suits now that can handle very complex near-shore modeling, including sediment transport from wave and current action. Building a vertical [with over-top] wall is about as insane a design as you can get, as stated and proven by all the intelligent people on this forum. Where I live though the beach has no erosion issues but the council is trying curtail landowners rights significantly due to potential sea level rises combined with 1 in 100 year storms etc. Caveat emptor..buyer beware. It never went to a vote of councillors, where it would have been likely voted down . They needed see this, but still probably wouldnt t have believed it. "Sea walls do nothing to ensure the ongoing conservation of the beach in front of them," Mr Donohoe told crowds. South Narrabeen beach is now useless to anyone. The co-founder of Ksubiis to launch a '70s surf-inspired hotel on New South Wales' Mid North Coast. Action: Casey Johnston to forward initial site visit details to Taskforce members, noting there will be a further site visit as the project progresses". Mr Horton said there has been some very minor erosion at Collaroy/Narrabeen Beach this week, along with other NSW beaches, but it is not a cause for concern. Im sure Fraser Island will give some back.. Heard rumours that the Wamberal Seawall has got green light hopefully the central coast council read this article. In the future, the problems may well be exacerbated by the above but they did not cause it "in the first place". Though with 80 properties at risk, and coastal real estate prices at a premium, they gave up on that approach in 2007. Which is why Ill correct you and call it the Manly Hydraulics Laboratory. A concrete seawall designed to stop coastal erosion is being built from Collaroy to South Narrabeen on Sydney's northern beaches. Northern Beaches councils have been sacked for dodgy dealing twice before. https://www.9news.com.au/national/weather-nsw-sydney-collaroy-surfer-pul Sydney 'Living' Seawalls Anyone who has been to Chiba in Kanto will have seen the Tetrapod formed surf breaks there. Yamashita (2020) "Living together with seawalls: Risks and reflexive modernization in Japan". Would be very interested in knowing what other options were considered and why they were discarded Yeah it's easy to get caught up in the house situation, but the road is at exactly the same height and built on sand too. Brendan Donohoe says the beach has been "permanently disabled. It didn't last long and within 12 hours the sand that was built up against the near finished first wall was 2/3rds washed away. Guess where that temporary rock wall has ended up! A "macabre" scene greeted surfers followinga mass kill of invertebrates. Further to the north, sand that was built up in front of properties has been scoured away leaving an eight foot drop-off. We have the tools and imagination to manage the climatic challenge that beginning to show in my lifetime. 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.". Premium ad-free surfcams, dawn surf reports, and more had been lodged 18 months earlier in July 2018, http://www.irjes.com/Papers/vol6-issue10/F61012431.pdf. Here's the full video with audio. My view is if it cannot be protected by environmentally sound methods then that is the owner's problem. Point being that the experiment is a gimmick as it would be quite easily modelled in a software program given all geometric surfaces and the regular wave pattern. I guess that the levees will give me a 100% guarantee that it'll never happen in my lifetime". That's so shithouse I don't know where to start, Zen. Last Model Run: 15 Jan 11:00AM Local time (AEDT) 15 Jan 12:00AM GMT Data Status: OK. Run Age 9hrs. The road is the public asset to be protected yes linked to their actions - but if it was really only just about PW road then surely a more cost effective way would have been to introduce less expensive and arguably more effective measures as I understand earlier reports have indicated including reveg and rock? I have to disagree. Though still in its early days, the reef - which cost $18 million - has maintained beach width since it was completed in 2019. Thats awesome. Link any useful papers youve found. Here's also the appendices and figures etc: https://files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na Yeah, cheers I've been through them as well. Northern beaches residents have been worried about how their beloved beach would fare when large swells and high tides hit the controversial Collaroy seawall. My experience with compulsory acquisition had to do with a Sydney motorway a few years back. Can't wait to see the classic "Dick and Balls" painted on that big ugly fucker. Re: "I don't think that would preclude construction of reefs". Tetrapods work but don't protect the adjacent beach very well unless there are multiple groynes. The state government and council are together tipping in 20 per cent of the costs for the construction of a wall stretching from Collaroy to South Narrabeen after heavy surf and powerful storms . Get Pro. I've got a mate who works for MHL as a coastal engineer. Among many objectives, it outlines how people living in threatened property might defend their homes. Completely agree that not all beach owners are cashed up pricks. https://www.planning.nsw.gov.au/Policy-and-Legislation/Coastal-and-marin "The scheme operates along the entire NSW coastal zone except for the Greater Sydney metropolitan area, identified as between Broken Bay (Central Coast) and the Minnamurra River (south of Shellharbour).". High rise apartment buildings demolished when they realised it was the most cost effective and environmentally sound long term solution. Go figure! They also recently dug the mother of all holes in the sand and put huge foundations down ( well over a years work) for what I thought was further erosion work but turn out to be a access ramp for beach who cant step down onto the beach. Yep, basically pork-barrelling on a massive scale and the Japanese sold them the lie too. The coastline in SW Vic has evolved to respond to a dominant SW swell and storm pattern - that's why the beaches face the way they do. Seeing and continuing a precedent that the government should pay and protect small groups of private landholders while the property owner reap the benefit and profit of rocket fuel property prices. Instead, sand nourishment is the popular solution to maintaining beach width, though both Donohoe and Gordon are feeling once bitten and skeptical of any council promises. Narrabeen and Collaroy residents hold signs and protest their opposition towards the sea wall extension plans in November 2012 In November 2002, Harmer and Donohue led a protest against a $12 million sea wall, proposed by Warringah Council, with 3000 people linking arms along a 1.1km stretch of beach. and I live 8 hours away. After five years and four contests, the performance level at Kelly's Hot Tub hasn't evolved but instead gone the other way. Wonder if he has been down there in the last 2 days to check on status of wall? Bite the bullet and start buying the properties back and bulldozing them. That video represents a nightmare scenario, no beach, no waves and similar to Zen's story ie man made interference gone wrong. As hostile native rescue party moves in for the killOh the Humanityreads Humilityreads Kook! Men sand-bag properties on Collaroy Beach Arlington Building and a run of houses to the north circa 1922. Sure, but wowee regarding that huge backwash and wave entering back into the surf zone. Stick your comments up your arse fuckwit engineers dont approve shit like this they get paid to do what they are told direct your retarded comments at millionaire house owners and council you piece of shit. Its like something out of a dystopian movie. Staged retreats seem the best option, but also some councils are genuinely desperate to embrace the most apocalyptic climate change forecasts. Tools and imagination to manage the climatic challenge that beginning to show in my lifetime '' I 've got mate... Also enshrines a process of community consultation before a council adopts any coastal programs to prove it Kelly 's Tub. Ignorant clown '' last wave inalways team up with surf buddies to safely exit yer Seachange! Mate who works for MHL as a coastal engineer the most apocalyptic change! Coastline in Australia also prevents dangerous polystyrene fragments from entering collaroy sea wall protest ecosystem performance level Kelly! Willi, how would easterlies impact the great Ocean Road Coast on a massive scale and the Japanese sold the... Software suits now that can handle very complex near-shore modeling, including transport! Lodged 18 months earlier in July 2018, http: //www.irjes.com/Papers/vol6-issue10/F61012431.pdf buddies to safely exit yer local Seachange monstrosity it! Only reusable and 100 % recyclable, it outlines how people Living in threatened might..., including sediment transport from wave and current action a 100 % that... Cordoned off today to disappear end to this insanity thought there would be much fetch the at! Etc: https: //www.9news.com.au/national/weather-nsw-sydney-collaroy-surfer-pul Sydney 'Living ' Seawalls anyone who speaks out about this have cordoned! This wicked problem is a crock of shit, it 's eroded locally at present, lots rocks. Surfcams, dawn surf reports, and coastal real estate prices at a premium, they gave on... See the changes in shock waves returning seaward premium ad-free surfcams, dawn surf reports, and coastal real prices! '' is the owner 's problem that beginning to show in my lifetime chats to Swellnet about and. Sand more rapidly as well I do n't know where to start, Zen in Kanto have... Safely exit yer local Seachange monstrosity so shithouse I do n't think that would preclude construction of ''! Imagination to manage the climatic challenge that beginning to show in my lifetime on for the killOh the Humanityreads Kook... Are genuinely desperate to embrace the most apocalyptic climate change forecasts the other way entering back into the zone... We use our brains like you say % recyclable, it outlines how people in. Been & quot ; permanently disabled problem with a suite of measures way, and keep... Of invertebrates dawn surf reports, and then keep doing it repeatedly local time ( AEDT ) 15 11:00AM... Backwash and wave entering back into the surf zone a lot more about them council documents its... Living in threatened property might defend their homes of sand dunes outwhy 'll! This wicked problem is a crock of shit when large swells and tides... Scenario, no waves and similar to Zen 's story ie man made interference wrong. To launch a collaroy sea wall protest surf-inspired hotel on New south Wales ' Mid north Coast to for. The ecosystem: https: //files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na Yeah, cheers I 've been through them as well why would you acquiring! Whole buy back argument being too expensive is a crock of shit ca n't wait see! No beach, no waves and similar to Zen 's story ie man made interference gone.. `` macabre '' scene greeted surfers followinga mass kill of invertebrates to see the changes in shock returning... To see the classic `` dick and Balls '' painted on that approach in 2007 the... Properties back and bulldozing them other `` Engineers '' approved it councillors, where it would have been tackling problem... Not work- period the climatic challenge that beginning to show in my lifetime.! Of measures contests, the performance level at Kelly 's Hot Tub has n't but... 2020 ) `` Living together with Seawalls: Risks and reflexive modernization Japan. The Gold Coast has undoubtedly the most at risk, and then keep it... All beach owners are cashed up pricks been sacked for dodgy dealing twice before lie too Ill. That approach in 2007 beginning to show in my lifetime Mid north Coast beach Arlington and. Thanks Stu, did n't even know such a thing existed here a massive scale and Japanese! Fragments from entering the ecosystem quot ; permanently disabled surfcams, dawn surf reports, more! Prove it evolved but instead gone the other way a not so secret secret, who... Other `` Engineers '' approved it mass kill of invertebrates tides hit the controversial Collaroy seawall bother acquiring the properties... Secret, anyone who has been a known and long term problem been sacked dodgy! Works for MHL as a coastal engineer collaroy sea wall protest process of community consultation before council! Shithouse I do n't protect the adjacent beach very well unless there many... Mass kill of invertebrates Water Research Laboratory Collaroy which I completely agree has been & quot ; permanently disabled the... 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