There are some fed govt areas that listen to this thinking. The council will be the lone 'interest'. 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. In that regard it seems to have achieved its design objectives very nicely, and the sacrificing of the public beach (and public access/amenity) in front of it is just 'collateral damage'. It's only a temporary feature. A number of properties along the oceanfront from Narrabeen to Collaroy were seriously endangered by erosion during a large storm swell in 2016. Good point, Lilas, but I think the issues around hard structures and beach environments have been established for so long and are so well known in the coastal management field that it's taken as read. The contractor is required to remove this temporary working platform and bund at the completion of the works, sieve the sand and remove all debris, and return the beach to its former state.. 2016 Collaroy seawall Concept Design Specs Lol. [Just like in Hawaii] Protesters linking arms on the beach in 2002. 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. An awkward situation, but only for one of the parties, as the Woz suspends the current Longboard World Champ. Installing the Pilings is the fourth step. If that was the only report they did then it would be good to know on what scientific advice, if any, they changed the plan. Yep, prevents over-topping but how's the reflection and enhanced rebound wave back into the surf zone!? Zen, it looks like an absolute disaster but Im guessing its not so much about coastal erosion but more about tsunami mitigation?? 2)How much did the Collaroy Carpark Coastal Protection works cost? However, NSW has an intricate coastal management and development approval system and surely there's a paper trail for the various consents and approvals for this abomination which would be subject to FOI? Both Brendan Donohoe and Angus Gordon, and other people Swellnet spoke to, admit to being blindsided by the construction. In Japan, their solution is to just go bigger and higher . Thanks lilas. Ignorant clown. As I understand it, governments have been reluctant to purchase vulnerable properties because there will be so many of them and the public purse could never afford it. Avoiding these types of impacts has been part of state coastal management policy around the country for the past 30 years. 1. what's the logic/law in having to buy back the properties ? The Collaroy wall is not subtle. " 2 metre swell at 13 seconds combining with a 1.8 metre high tide at nearly 9am should provide some good viewing this morning. Could be the camera angle but. How many parts of the great ocean rd could have to close and the emergency that would lead to. The reef/sand nourishment are both mainly designed to widen and protect the public property, ie the beach, in front of the buried seawall. Better still put them on a rocket for deep-space explorations [the missions that don't return] 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. [ask GaryG] Surf Breaks Inc. Coming to a beach near you ! Embed Forecast. How was Collaroy Beach made? I am safely 140m above sea-level now so that should be safefor a while hahaha. But several of those areas experiencing recession are linked to important infrastructure that the authorities want to protect - depending on were you are, the GOR also houses telecoms, sewerage and other infrastructure. It would be interesting to know if coastal engineers are bound by law to follow best-advice from Consulting Scientists? In blustery, unfavourable conditions, people began lining up at 4.00pm Saturday afternoon (27 November) between Collaroy and Narrabeen to form a 'line in the sand' against the seawall's construction. Establishment and set out of site survey control points. Fight the good fight mate. Both Donohoe and Gorden were correct, up to a point: The construction began with concrete piles sunk six metres below sea level, protected by a rock toe. https://www.smh.com.au/property/news/coastal-properties-at-highest-clima https://www.abc.net.au/news/2022-01-17/will-climate-change-put-an-end-to Kala Grace In Dramatic Rescue While Competing In Backdoor Shootout, 'Corners Of The Earth: Kamchatka' Tour Dates, Watch: Hossegor Super Session January 6th, Australian Designer To Launch Crescent Head Hotel Amid Local Development Concerns, Dead Marine Life Washes Onto South Oz Beaches After Flooding, Watch: Ryan Callinan // Beneath A Pear Tree, Watch: Cronulla's Jarvis Earle Wins World Junior Title. If you look a bit to the north you can see the relatively intact beach with a decent amount of sand. We have the tools and imagination to manage the climatic challenge that beginning to show in my lifetime. Nobody there is in a position to offer 2-3 times market value. Until then the owners can continue to enjoy their delightful seashore experience. If they approached the landowners then the most they would be offered is market value. I am actually shocked the collaroy houses in particular have gone up in value - i wouldnt be able to sleep at night living there! Hi Lost, yes there is another option - see my 2 posts above. This would reduce the lateral movement of sand along this stretch of beach, reducing the natural erosion while creating some great banks. 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. Apologies for misreading you. Where the only issue is private property things are a bit simpler. Maybe start a thread in the Forumsand you must have a few Wild sea tales to tell with 560 Lord Howe trips under your belt. Maintenance starts 2 months (?) This wicked problem is a result of intergenerational dumbness. A bit like asking journos writing about climate change to include references scientific papers talking about how CO2 is a greenhouse gas. Sorry wasnt specifically referring to collaroy which I completely agree has been a known and long term problem. 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. I go to look at the big mistake after a big easterly storm. Link any useful papers youve found. With increased ocean levels comes all those properties around Botany Bay, Parramatta river, Georges river. Looking at that DA via Stu's link, it must have taken a considerable, possibly illegal, effort to keep that out of the hands of those community members with a long record of interest in the matter. (Those suburbs are just local ones I know a bit about. You'd think that would then open it up for more legal action (aka why did ABC get first dibs and XYZ missed out?). This seawall will not only protect our homes but also Pittwater Rd, and the many communication and public services installed under it, from inevitable future storm events. 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. Some family recently went through this as their house sat above the construction zone for the Spit / Northern Beaches Link tunnel. A shame too, as it would probably be a good strategy. Such a shame its job wasn't to conserve the beach and public access at the same time. My comment in the other article also notes that across this region, "it is illegal to establish, maintain or use a spoil ground or other ocean disposal point (including dumping materials at sea)". I'm not entirely sure, but one of the reasons why an offshore reef structure hasn't been considered for Narrabeen may be because it's part of the Northern Sydney Protection Zone, hosting submarine cables that connect Australia to various parts of the Pacific (including Japan). Hows the Seawall holding up? The Act was introduced by Rob Stokes, the NSW Minister for Planning and member for Pittwater. Much better to work out a solution where the public doesnt lose their beach as per collaroy, but councils/government do need to help landowners. I don't disagree with most of that. My experience is that if the responsible authority wasn't involved in the valuation process they struggle to comprehend it, let alone see how it legitimately applies to their own patch via things like benefits transfer. Hourly Multiple Swells Wind Highlighting Model Units ft, mph. You have a decade of good conditions somewhere along the way and everybody builds on the beach or on a river bank and then there reminded of the risks being swell generated by a low and annual big tides in cyclone season who woulda thought ..or flooding by jingoes fuk wouldnt you rather walk an extra couple of hundred metres and leave nature to do what it does . stupid white poeple ..classic. Great article.. https://www.smh.com.au/property/news/coastal-properties-at-highest-clima @Craig There are many software suits now that can handle very complex near-shore modeling, including sediment transport from wave and current action. Death of Her Majesty Queen Elizabeth II. I would rather have seen the money go into a couple of California style piers. 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. Pretty incredible and frightening stuff. 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?? They are the real villains, as regardless of what anyone says or does, these idiots can allow or disallow engineering developments so the buck stops there! They can be excused as they thought theyd be informed before any such works took place, as per the 2016 Coastal Management Act. Given that it seems to fly in the face of best practice, has anyone asked what the NSW Coastal Council has to say about it? On the release of his latest edit, R-Cal chats to Swellnet about love and other acrobatics. As you know we have the Great Ocean Road down here , which was a huge Tourist attraction ( before Covid.) The beach is now too dangerous to walk along and it's one big eyesore. 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). As the article states, in terms of erosion, vertical walls don't work and actually exacerbate the problem. It's a travesty in so many ways and a very poor precedent for other parts of the coast which will be deemed vulnerable to sea level rise. If you are referring to Vertical hard structures then that needs to be specified). Climate projections will have some Australian surfers rejoicing, and others not so. With the benefit of ignorance, having not seen the actual plans, I'd be surprised if the foundations were able to fail easily as I'd expect they'd have been designed explicitly to avoid it. The sheer number of cables there suggests to me that an offshore reef proposal would be unsuccesful. The only way now is to harness the power of coastal construction science and engineering. https://www.acma.gov.au/zone-protect-sydney-submarine-cables, That makes sense Ben. Unlike politicians, scientists are usually very open with sharing their knowledge and data, to help inform the public. We have over 40 years of combined experience installing, maintaining, and repairing seawalls on both residential and commercial properties. These very costly bandaids never work and continue to fail while extending the problem to adjacent properties that don't have the wall. Cheers for the knowledge Craig. I have written to the Office Of Local Government about my concerns over the hiding of the second DA. In Apollo bay there is an area at Marengo where they just tip $1/2 m's worth of sand a year ..there was a report about having to spend $3b to make big bridges and raised roads. Holds more water and replenish the beach? I was watching the houses on the cliffs at Bilgola the other day. No more excuses for your terrible workmanship anymore. Luckily these sections of the Roads are at the far inside of pointbreaks so the wave energy is mostly weak, with little rebound affect. Have you done a study already? I have to disagree. I definitely disagree with a buy back. There is no better option. 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. The majority of these companies are legitimate businesses set up by Yakuza. It's actually quite simple to install and get going unlike a lot of open-source software. Lance Knight. 1. Guess where that temporary rock wall has ended up! But thats about it . Confirming that they were involved in the initial design only. That's a form of speculation I believe. BB who is getting the sand which has gone from here? She had reigned as Queen for 70 years. The legacy of that approach will be something future generations will have to live with.. My comment was maybe too obscure but was meant to be sarcastic. Construction of a seawall is underway to protect homes at Collaroy Beach. Yeah nah. I doubt there will be a demand for the effected given the inevitable. Existing market value must take into account that houses have erosion problems. An increase in storm activity - particularly from the east and north-east, as has been proposed by Associate Professor Ian Goodwin - and the looming threat of sea level rise are X-factors for East Coast beachfront development. Collaroy sea wall. Could be some good entertainment next time some serious swell hits. Certain death. They have destroyed every built form on the beaches. Great article highlighting the competing interests of the natural environment and local councils (which are too easily manipulated by wealthy stakeholders). Whe I checked the link today on the second one it went to the first DA for the sloping rock wall, not the second one for the vertical concrete wall. Old bathing boxes which were on long piers sitting out in the bay are now sitting in the middle of sand dunes. Big walls like this one are getting smashed and although for the most part they are still there, everything behind them is going. The matter is currently under investigation by Environmental . This is very different to Collaroy. That's crazy stuff. Most swells will have to wrap around the rock/reef headlands as well as cape Otway before this and nicely wrap the swell into the bays and our coast has been shaped like this for however thousands of years so it is used to it, and this is what us humans observe as the normal state of the beaches as they are quite predictable and dont change much around here. Furthermore they have facilitated an increase of erosion to adjacent beaches. Other than buy the land and let nature take its course Im really interested to know if there are any other options - not brutal like this but that might be effective ? Lawsuit waiting to happen when a swimmer/surfer gets nailed by a rogue piece of concrete either down the 'Roy or up towards Northy. The 18-year-old scored a near-perfect 9.50 in the Final, held at Seaside Reef in Encinitas, California. Both!! Rock barrels at its best! After five years and four contests, the performance level at Kelly's Hot Tub hasn't evolved but instead gone the other way. sea wall is perfect. Contrast man-made against a natural barrier like mangroves (apologies for the sound, not my video), Trees work well for preventing erosion ONLY when the wave power is very minimal. Apparently this is just one part of the seawall. I think this was done for the first DA, the sloping rock wall, rather than the vertical one that was actually built. Was it some random guy off the street? 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. And ALL received in a 3 day period 17-19 July 2017. I'm invested now, and want to know the latest. Links relating to the City of Sydney, and NSW in general - please read our rules before High rise apartment buildings demolished when they realised it was the most cost effective and environmentally sound long term solution. This sets a very dangerous precedent for the rest of NSW. 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. With expected sea level rises obviosly making those matters worse - however there is some irony in the fact Gina Reinheart whose carbon footprint is horrendous, just bought the most exposed land in sunshine beach to these very issues - but im also stressed people like her etc will want to build sea walls down the track. https://nationalprecast.com.au/wp-content/uploads/2015/06/Collaroy-Beach 2020 Surfer keelhauled by Collaroy Stormwater Pipe {RIP} If they are falling into the ocean or they require extensive works or continual maintenance, then what is the market value? Sea level rise equation is based on the Bruun Rule to ascertain erosion in open coastal areas like Collaroy. The co-founder of Ksubiis to launch a '70s surf-inspired hotel on New South Wales' Mid North Coast. I dare say the neighbours are on notice too. 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! Her Majesty Queen Elizabeth II died in Balmoral on 8 September 2022 (GMT) at age 96. btw- that one is a tiddler compared to what they have here. Who is going to want to inherit that when they exchange contracts? They might be looking for a new 'environmental' consultant after the next major swell. It may not happen in my lifetime [fingers-crosssed] but it's a real issue when thinking about your children who eventually inherit your home. More than a year after severe storms damaged property in Collaroy, construction of a long-awaited sea wall is underway. 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. But, they just persist time and time again. Thanks so much zen! If you look at the photo of the wall there appears to be a set of stairs built into the concrete for each property. I've written about it before but the real reason here is money- it is massive pork-barreling on an unprecedented scale. They have just invested in an asset that requires 60 years of maintenance. Your browser has JavaScript disabled. We took the easy way, down towards the ocean and along on the back of the dune. In a 2007 story for the Sydney Morning Herald, both Rob Stokes and a spokesperson for Warringah Council admit buyback isnt feasible and that other means of defence would be necessary, such as dune reconstruction, revegetation, and sand nourishment. Perhaps the omission was because in 2002, protestors, led by Brendan Donohoe and Surfrider Foundation founder Tom Kirsop, formed a line in the sand stretching from Collaroy to Narrabeen opposing the construction of any seawalls. That is why this option was selected for Palm Beach Qld, and I think should be considered for all the other coastal erosion hotspots along the NSW coast as well. "There's no sense at all in building something like this from an engineering perspective. At this point, no-one can say if any consultation occurred, though the cynical view is council ticked the box by distributing flyers to the immediate neighbours, all of whom would want similar works built to protect their properties. "Update from Council on possible site visit to Northern Beaches: Casey Johnston advised a site visit to Narrabeen-Collaroy is being canvased for early December 2021 to allow review of their seawall in construction. For some it. 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. This is not a defence of the structure or the owners, just recognition that the protection of the main north south artery on the northern beaches was a factor. At the same time it would put an end to the constant dredging and relocating of sand from Narrabeen Futile. Their email is: [emailprotected]. The project is part of the 1.3-km seawall proposed from South Narrabeen to Collaroy to protect both private and public assets in the suburb. The GCCC's Palm Beach Qld solution which uses an offshore reef/sand nourishment/seawall buried in the dune is the ONLY solution for coastal erosion that protects both beachfront private property and public property ie the beach, without any structures being visible on the beach. oh yeah and someone call security. The NB has always excelled at extreme ugliness. Alas this would have meant some loss / damage to private property. For the swellnet readers here's some background info, and here. It shows how different combinations of coastal defences and wave and tide conditions affect overtopping and flood risk. 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