If Surfrider and others haven't done it already, my view is that Swellnet, as a legitimate media organisation with a substantial subscriber and stakeholder base, could very reasonably write to both the NSW Coastal Council and Sydney Coastal Councils Group seeking advice about the adaptation options and why buy-back was not considered suitable for the site. the Senior Environmental Officer" Northern Beaches NSW govt!! Not sure if that happened though. Yep, basically pork-barrelling on a massive scale and the Japanese sold them the lie too. Im just saying its a difficult issue, beachwall terrible and if its sets a precedent huge chunks of the coast stuffed. https://eservices.northernbeaches.nsw.gov.au/ePlanning/live/Public/XC.Tr First red light! We have over 40 years of combined experience installing, maintaining, and repairing seawalls on both residential and commercial properties. the above-average wave heights and elevated water levels are to blame. Maybe "Collaroy" is the aboriginal word for "Stupid White people"? Climate projections will have some Australian surfers rejoicing, and others not so. I have limited state / lga experience but my perception is this broader thinking can get lost in short term self interest (putting it politely) as touched on by BB and others. Between these three, you can protect any shore from water erosion. They blend in quite nicely and have provided easier access to the breaks and so far been a success in the regions theyve put them so I fear theyll continue to put them in everywhere thinking they wont caus too much damage to beach profiles elsewhere. 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. OMG!!! 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. And ALL received in a 3 day period 17-19 July 2017. 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. Good balanced post tango. They've had a very very blessed life compared to anyone else in this country and that in return they would do such harm to a public place to save their private property is a bit sad. Sorry wasnt specifically referring to collaroy which I completely agree has been a known and long term problem. 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? You may not realise that there have been large volumes . The GOR situation is far more complicated than Willi's well-intentioned advice makes out. 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. Should this critical lens be applied to other topics such as the Coolum wavepool? If that is to be avoided there needs to be a concerted effort to gain the support of the wider NB community to create pressure on the council to develop a more acceptable plan. The angle of any hard hard structure relative to the wave direction is what really matters, so you can see why it's important to be very specific when talking about science/engineering. Can't wait to see the classic "Dick and Balls" painted on that big ugly fucker. The exception of course is if youre a donor to the LNP then a $3M block of land can be sold for $30M!!! So where public assets like roads are involved things get really sticky. GCCC's approach protects both private property and public beach amenity without any visible structures on the beach. If the houses go, the road goes shortly after. Sure if youve bought the last 5 years ignorance cant be an excuse, but theres nothing wrong with wanting to live on the beach. Zen interested how Japan just keeps dropping those big Tetrapods anywhere there is coastal erosionlost a lot of surf spots..how effective do you think they actually are against erosion? There have been high profile storms on the NSW East Coast since the mid-70s. Step 3: Calculate the number of pilings that will be required. 314k members in the sydney community. Perhaps at best, the council acquires the land and owners get a sum to relocate to a 'normal' house west of Pittwater Road (god forbid). It only does BOUSSINESQ wave interaction and NOT sediment transport but you can still get a lot of good design-feedback Spot on tango. Agree 100%. More often than not, the pollies retiire and are parachuted onto the boards of these companies and live out their lives having enriched themselves quite nicely. A sneaky second application, for the vertical wall was seen by very few. 1. Aside from high tides and Tsunamis, Im guessing most islands/atolls dont suffer much erosion when surrounded by reefs? Construction of a seawall is underway to protect homes at Collaroy Beach. Old dude making a dash for it, budgie smugglers and a cricket cap. We spoke to expert coastal engineer, Peter Horton, about the current situation and the coastal protection works he designed to protect the properties from large and powerful surf. Might chat about it at some point Craig Brokensha, and anyone with deeper connections or insights, feel free to pass me their contacts and we can compare notes and research and discussion points. We can mess things up in a colossal way, and then keep doing it repeatedly. Locate courts, tribunals and offices. I have a blanket policy of not feeling sorry for people owning properties worth multiple millions of dollars, who have lived the better part of their lives walking from their beachfront home directly onto the sand. The 18-year-old scored a near-perfect 9.50 in the Final, held at Seaside Reef in Encinitas, California. (9News) But the structure has divided locals, with many describing it as an eyesore, and there are concerns it may wipe out the beach entirely. Thanks again for your time and effort to make these articles, as we all truly appreciate them. For a couple of furlongs it was quite close to the ocean but nobody cared. With increased ocean levels comes all those properties around Botany Bay, Parramatta river, Georges river. Am I missing something with the job title there? In 2002, about 3000 people took to the beach to protest a planned sea wall, concerned it could destroy the beach. I wonder if they're intended as some kind of device to absorb/dissipate energy rather than as trafficable stairs? Drone footage over Collaroyafter the June 2016 'Black Nor'easter swell' (Photo: UNSW Water Research Laboratory). Wow, that is ugly even by brutalist/modernist standards. Brendan Donohoe says the beach has been "permanently disabled. It would be fascinating to see the NSW Cabinet documents which advocated for this approach. I am looking at it but there is probably someone better qualified out there. increases social amenity". This is a massive issue around the world from which there are countless learnings. Good point, lilas, that explains the mystery of why aborigines didn't build their homes close to the ocean. The only way now is to harness the power of coastal construction science and engineering. Section 2.4 Item 4 - classic stuff. Yep totally agree. Around 80 percent of the cost will be shouldered by the property owners themselves while the remaining 20 percent will be jointly funded by the Northern Beaches Council and the NSW government. On the MP they blew the heads up and the erosion from Portsea front beach to the heads is crazy. I doubt there will be a demand for the effected given the inevitable. A new wavepool development for the Sunshine Coast points to the future of pools in Australia. Im presuming that sand delivery's from the lagoon will be an ongoing thing. consultant reports and community consultation no doubt funded by state money. Went down for a look and its a fucken disgrace. https://www.acma.gov.au/zone-protect-sydney-submarine-cables, That makes sense Ben. 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. lilas Manly Hydraulics did the work which was used for the initial design but I am not so sure about their input on what was finally constructed. Amongst other things, it is illegal to "establish, maintain or use a spoil ground or other ocean disposal point (including dumping materials at sea)". Will be interesting after another summer if potential strong easterlies due to the La Nia. As mentioned in an earlier post, I place the blame fair and square at coastal engineers who design and approve these ill-fated designs. Will try and find out. Ignorant clown. I dare say the neighbours are on notice too. Normally large swells from the SW have very little affect on the beaches around here because the great ocean rd is comprised of Rocky headland after headland. It makes perfect sense doesn't it, stop/dissipate the energy before it has the chance to have an impact. Should have taken the high road. The market knows this. From deep state secret spot to modern media darling, what lessons can we learn from Cape Solander's evolution? Man, that'd get old real quick, happy to pass. The very thing we live for one the beaches is full of concrete and man made fuck ups. "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. I have written to the Office Of Local Government about my concerns over the hiding of the second DA. These seawalls are easy to design, and easy to construct. 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? Thanks Craig aod if you are THE Jody P, yes you are a ledge. Northern Beaches councils have been sacked for dodgy dealing twice before. Anyone who has been to Chiba in Kanto will have seen the Tetrapod formed surf breaks there. Collaroy's existing situation is precarious at best. Rad demo john interesting as Craig said to see the changes in shock waves returning seaward. So says Brendan Donohoe of the conundrum facing Northern Beaches Council in relation to the Collaroy beachfront. Council and State Government contribute 10% each. 2 metre swell at 13 seconds combining with a 1.8 metre high tide at nearly 9am should provide some good viewing this morning. the whole sea level/erosion issue is here now ..hmm any idea's solutions you have come across? An awkward situation, but only for one of the parties, as the Woz suspends the current Longboard World Champ. Not to mention the many brutalist houses dotting its once beautiful headlands. Whether concrete castles or sand castles, buildings that close to a sand shoreline must be living on borrowed time. 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. Plenty others have discussed it. The theory is that the waves break further offshore, soaking up wave energy that would otherwise erode the leeshore dune system during storms. The software built for Kelly's wave pool was also a big leap forward to modeling actual breaking waves and I really hope they share that knowledge with the rest of the scientific community to help forward our understanding. Lindsay Fox is happy as a vegemite as he now has what he wanted all along, more real estate to land his helicopter on. "Sea walls do nothing to ensure the ongoing conservation of the beach in front of them," Mr Donohoe told crowds. Designed to democratise surfing, Tom Morey's invention became a specialised craft for riding treacherouswaves. There are many software suits now that can handle very complex near-shore modeling, including sediment transport from wave and current action. as the article states coastal erosion has been known since the 20s in that area and has been studied meticulously ever since. A quick trip Todos Santos way during a belting nor'west swell. Is it designed to behave like a bottle-neck? A "macabre" scene greeted surfers followinga mass kill of invertebrates. Highly unlikely! People need to be absolutely on top of the approval process in their local area if they want to have a hope of preventing these structures. In Japan, their solution is to just go bigger and higher . There's no homes or businesses, or very few to speak of- doesn't come close to justifying the cost of the wall. 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. Def landing size incorrect i reckon900mm min ? Rd: 7th Oct. 1912: c041070001: 1912: Z/SP/C25/1a: Collaroy Park Estate Narrabeen: No boundaries shown: 7th Oct. 1912: c041070002 [1915] Z/SP/C25/2 [plan of Collaroy] Government Rd, Sea View Pde, Collaroy Ave, Main Pittwater Rd, Jenkins Pde, Beach Rd . How about dredging narrabeen lagoon?? Owners, Council and 'engineersshame shame shame. Collaroy Sea Wall With such close proximity to the ocean, our client tasked us with producing an alternative to the commonly used polystyrene forms. Would be interesting to know the depth as it goes out to sea as well as that gives options for offshore reefs to dissipate the wave energy, therefor preventing erosion. Yes and do they have tactile indicators in the correct place? Super difficult problem, maybe councils could buy beachfronts then lease back the properties. Gold Coast City Council had a similar problem to Collaroy at Palm Beach Qld. San Sebastian surfers are fighting a wavepool in their hometown, which is also the hometown of Wavegarden's founder. They may have a wall, but there will be no beach in front of it. "There's no sense at all in building something like this from an engineering perspective. This is where I live. You may call me names, but the facts still stand. [happy to stand corrected on any of this] Great stuff. If you're looking to protect your property from flooding with erosion control in McHenry, IL and the larger Chicagoland area, give Seawalls Unlimited a call at (815) 331-8830. Guess where that temporary rock wall has ended up! I tear up and swear to myself. There is a common denominator here, "Coastal" engineers with a lack of knowledge and understanding of coastal processes. Your browser has JavaScript disabled. As parts of the great ocean rd have began to crumble into the ocean. But thats about it . >>Is that because he has been paid already?? A weather-beaten cement plaque with the year 1952 is still visible along a section of the seawall. However, the bean counters and quantity surveyors were extremely difficult for obvious reasons. These walls stick straight up into the air like a fence made of steel or concrete.