collaroy sea wall protest

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. This is very different to Collaroy. For a couple of furlongs it was quite close to the ocean but nobody cared. Some interesting papers about building seawalls and the effect it has on risk perception in the post Tsunami context in Japan: Littlejohn (2020) "Dividing worlds tsunamis, seawalls, and ontological politics in Northeast Japan" As mentioned in an earlier post, I place the blame fair and square at coastal engineers who design and approve these ill-fated designs. On top of this they have places sand band grounds out perpendicular to the sandunes. Sorry to sound pedantic but we should clarify exactly what we mean by "Hard Structures" as it's too general a term. The seven metres protruding above sea level is vertical, even going beyond vertical for the final metre to prevent wave overtopping. They have just completed digging out a new path for the river to follow with excavators and every day Id watch the next morning after high tide their progress would seem effortless and the river would tend to follow the old direction. South Narrabeen beach is now useless to anyone. Among many objectives, it outlines how people living in threatened property might defend their homes. Existing market value must take into account that houses have erosion problems. Rise seems nearly double than the run. And ALL received in a 3 day period 17-19 July 2017. Btw when I say 4ft these waves 99.99% of the time are sloppy, they break for half a second and then dissapear and its an ugly wash for kms out to sea. Its all about the squeaky wheel. 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. 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. If so, I presume it may slow around the reef, but then continue north on a more normal migration speed. https://www.swellnet.com/comment/772908#comment-772908. The track became a road. "There's no sense at all in building something like this from an engineering perspective. I mean, did someone forget about the old idiom about 'shifting sands' or what? Hi Mark. They are a method of hard engineering. nothing that a annual maintenance fee paid for by the taxpayer can't fix. Same stretch of sand - another wall to protect public assets - https://www.scs.nsw.gov.au/soil-conservation-services-projects/collaroy- Gary G has been erecting hard structures in the dunes around Victorian beaches for years. Climate projections will have some Australian surfers rejoicing, and others not so. It also enshrines a process of community consultation before a council adopts any coastal programs. Death of Her Majesty Queen Elizabeth II. Buy backs should only be an.option when they contribute to an environmentally sound solution. Newiie Harbour was pumping. 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! Lindsay Fox is happy as a vegemite as he now has what he wanted all along, more real estate to land his helicopter on. Plenty others have discussed it. Including the residents behind the great wall. Staged retreats seem the best option, but also some councils are genuinely desperate to embrace the most apocalyptic climate change forecasts. 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. A band of knowledgable people have gotten together and are in discussions about it and coming up with arguments and alternatives against it. Plop! https://www.linkedin.com/mwlite/in/peter-horton-coastal-engineer. Lol. If you are referring to Vertical hard structures then that needs to be specified). Rock barrels at its best! Luckily these sections of the Roads are at the far inside of pointbreaks so the wave energy is mostly weak, with little rebound affect. It has to be worth a look. It's going to be interesting to see how it holds up after this weekend/early next week with another round of resonably solid E/NE cyclone swell hitswho's going down to take more photos and show the aftermath?!! These very costly bandaids never work and continue to fail while extending the problem to adjacent properties that don't have the wall. Anybody heard of rising ocean levels & retreat by wealthy landholders who where allowed to build in the dune systems which nature designed to replenish the beaches? For me, the value of these properties is in the negatives and at the very least, its a big fat round calamari. Cyclonic activity isnt forecast to increase at all - I think the jury actually out on that at the moment, east coast of Australia in a 500 year dip too on cyclonic activity. I imagine the ocean will eventually claw away under and around and over the structure. Yamashita (2020) "Living together with seawalls: Risks and reflexive modernization in Japan". "Have you ever seen such a magnificent view as the one from our balcony overlooking this active volcano? 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. What some consider the ugliest wall in Australia could soon be bigger, with residents pushing to extend the Collaroy seawall on Sydney's northern beaches. 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. 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. These seawalls are easy to design, and easy to construct. That's so shithouse I don't know where to start, Zen. Although ill be constantly monitoring the situation and around at cathedral the beach profile has certainly been getting steeper. 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. They aint getting crushed. Not rhetorical question ! Te Puna Aonui is the joint venture of government agencies that will deliver Te Aorerekura. First completed by the French in 1735, the Pondicherry seawall reaches a height of 27 feet above sea level. 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. Having said that, nature usually finds a way to overcome most "permanent" human structures, and they often seem to forget that the wall isn't continuous.yet. 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. At the same time it would put an end to the constant dredging and relocating of sand from Narrabeen Some relevant links from when I had a dig around before. These are the taxpayer funded grants that LGAs will apply for, to repair the wall. Initial reports claim Marcio Friere wasn't wearing an inflatable vest when he was held down in large waves. Yep, basically pork-barrelling on a massive scale and the Japanese sold them the lie too. Some family recently went through this as their house sat above the construction zone for the Spit / Northern Beaches Link tunnel. It would be fascinating to see the NSW Cabinet documents which advocated for this approach. 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. The people responsible for awarding the contracts get huge kickbacks. and the sick irony of the beach access sign detailing the seawall works with all "enquires to be made Here are the bloke credentials Furthermore they have facilitated an increase of erosion to adjacent beaches. Check this out. 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. Collaroy Sea Wall Client: Citilink Piling With such close proximity to the ocean, our client tasked us with producing an alternative to the commonly used polystyrene forms. Rad demo john interesting as Craig said to see the changes in shock waves returning seaward. 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. 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)". The Palm Beach artificial reef is now completed. 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. Any example around the world that have worked with out wrecking a beach but holding back erosion in built up areas ? Unlike other approaches like soft beach nourishment, they offer a long term solution to shoreline erosion. From the last set of minutes from the Wamberal Seawall advisory Taskforce Nov 18 2021. Thanks so much zen! This isn't a new issue, as has been mentioned in the article above, and the longer we ignore the elephant in the room the harder it will become to resolve. An "Engineer/s" designed this monstrosity and other "Engineers" approved it. 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 . My comment was maybe too obscure but was meant to be sarcastic. Google "End-wall effect erosion" and you'll find many papers/studies on this. [ask GaryG] A quick trip Todos Santos way during a belting nor'west swell. (AO) My understanding is that the hard seawall was constructed with the specific intention to protect the private property behind the wall. I looked into this again yesterday. Take a chill-pill mate, or possibly the whole packet as it appears you need them. It makes perfect sense doesn't it, stop/dissipate the energy before it has the chance to have an impact. The main issue is that the cables are protected in whatever is proposed. It's been seven years since the last, but the event has been called on off for this Wednesday - Hawaiian time. The sea wall forms a permanent, stationary barrier between the sea and the land. The wall is set to be seven metres tall, but three-quarters will then be covered by sand brought onto the beach. The market knows the insurance companies know this. increases social amenity". Whether the NSW state government / local council want to backflip with a pike on their current failing seawall master plan is another thing. I recently tested an Open-Source Wave modeling software called "Celeris" and the result are really good although I didn't go too in-depth with it. She had reigned as Queen for 70 years. Unfortunately groynes or artificial headlands are not part of the certified Coastal Zone Management Plan CZMP (2014). Northern Beaches councils have been sacked for dodgy dealing twice before. We can mess things up in a colossal way, and then keep doing it repeatedly. What they could all agree upon is that council has lost the trust of all whove opposed the seawall over the decades. Is it designed to behave like a bottle-neck? The most notable benefit of sea walls is that they provide excellent protection against coastal erosion and flooding. A sneaky second application, for the vertical wall was seen by very few. A quick trip Todos Santos way during a belting nor'west swell. 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 would have been a bargain 20-30 years ago to buy the properties and return the space to the public for the purpose of more effective less intrusive, natural and cheaper remediation efforts. If they fall into the sea so be it. More than double in wealth the last 7 years. He said when the work is complete, sand will be pushed up to cover most of the seawall. 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. You can go to court to complain about the price, but you cant object to the acquisition. The reef/sand nourishment are both mainly designed to widen and protect the public property, ie the beach, in front of the buried seawall. sea wall is perfect. I am not stock market savvy. Will be interesting after another summer if potential strong easterlies due to the La Nia. I dare say the neighbours are on notice too. Is there a sea wall at Collaroy? Take the houses away eventually they would be building a wall to protect that road that you whinging moles drive around on for 20min checking it. Ignorant clown" >>Is that because he has been paid already?? This is a massive issue around the world from which there are countless learnings. https://nationalprecast.com.au/wp-content/uploads/2015/06/Collaroy-Beach 2020 Surfer keelhauled by Collaroy Stormwater Pipe {RIP} Hear, hear! Edit: The estuary was in an area protected from the ocean and the cliffs only faced small wind chop and the tides. My guess is that their engineers took a different view of how to best manage the situation. Usually done by compulsory acquisition with the government working off existing market prices. Though still in its early days, the reef - which cost $18 million - has maintained beach width since it was completed in 2019. We all know there is significant increases in sea level rise..are we setting a precedent that if your coastal property succumbs to coastal erosion, you should be financially compensated? Willi, how would easterlies impact the Great Ocean Road coast? Its like stepping forty years back in time. Looks like the council are aware of the liability concerning the still submerged rocks. I will check with him and report back. Has been for a while. Picture: Nearmap A subsequent image of Collaroy Beach from June 8, 2016. 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. The obvious one is disaster relief which will be a given in the medium to long term for the repair of the wall and its impacts to adjacent beaches. On top of this living around moruya last year the slow gently shaped dune leading into the beach was transformed for a straight 3m high drop off that you had to jump down by the end of all the ECLs around August. There isnt much fetch so its only ever weak 1-4ft tops of onshore wave after wave onslaught, this a particular problem at high tide caus most bays and points usually go flat at high tide but under an easterly scenario the easterly windswell pushes right up to the dunes, and easterly swells require lots of wind and from what Ive read on swellnet these large storms if the pressure is low enough will raise sea levels higher than normal. Seawall construction isn't mentioned. While celebrating his record for coastal protection with a park on the Collaroy-Narrabeen stretch, Northern Beaches council was also processing a Development Application thatd threaten the very same beach. Wherever there's a seawall the sand/beach washes away and makes it virtually impossible to enter or exit the water, not to mention the impact on the birdlife, fish and crustaceans that depend on the seasonal sand flow that comes with a healthy beach. Its also been the focus point for opposition to coastal development; an abject lesson about what results from bad policy. the hardest decisions should be the easiest. Also, ALL the Numerical modeling was done in comparison to the current altered beach-state and NOT to a natural beach-state so there is bias in modeling things that way even though the beach state is not natural any more. The properties were bought in good faith, said one local who wished to remain anonymous, and the owners must feel an obligation for the authorities to protect them, but a seawall is last century thinking.. 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. All they are protecting are some pretty sparse land and some rice fields a couple of hundred metres inland. Given Council has already completed protection works on public land, and there's been a lot of talk about the owners' seawall, understanding all the facts is important. I was watching the houses on the cliffs at Bilgola the other day. Nothing can ever excuse extremely poor and ill-conceived designs. If they approached the landowners then the most they would be offered is market value. Sounds like you are pretty deep in that world! Bumper Farrell had the prime position. The State Government essentially provided the compensation for the business to relocate to another 'suitable' site. property owners in Collaroy have seen the value of their asset increase by around 20-30% in the last 12 months alone. Stop wasting money and do something that will achieve the intended goals. That ABC article is spot on when it comes to waterfront properties. 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. 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. This just a year ago was a nice Sandune. that would be awesome location for JOb or other jackasses to film fun vids. The whole buy back argument being too expensive is a crock of shit. 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. 2)How much did the Collaroy Carpark Coastal Protection works cost? 1. Planning Minister Rob Stokes told the Telegraph there was a recent plan to build a sea wall in Collaroy at the scene of the devastation but the owners would not agree on making a contribution, so it never happened. Nature fights back. The above video might be of interest to help understand the design of the wall. The fucking vandals bulldozed down one of the last remnants of coastal heath to get their heavy equipment in. But thats about it . Seawalls have the inevitable effect of reflecting and concentrating wave energy and accelerating erosion. Now a 7 metre-high, concrete, vertical seawall has been built in front of private properties on Collaroy/Narrabeen beach. Link any useful papers youve found. I think we have already seen 19 cm of sea level rise on the east coast - and at least up here it hasnt translated to any significant/extended erosion issues. The problem is one of vertical fiscal imbalance. It certainly doesn't make it the best decision though. However, Craig, when you say "Comparing the swell to those of last year it wasn't of any major significance but it shows the futile efforts trying to protect property with a hard structure." governments recently built a bunch of groynes around the Murray street area. Building up during periods of low swell energy, while being transported into the surf zoneduring periods of high swell energy, acting as a buffer to the incoming surf. 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. The fact that an engineer/s designed this crazy-ass wall is the concern I raised. 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. More to come once the other residents agree to pay their contribution. EDIT: Just to be clear, the issue of erosion has nothing to do with sea level rise, climate change, or buying the latest board. https://files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na https://nationalprecast.com.au/wp-content/uploads/2015/06/Collaroy-Beach https://www.9news.com.au/national/weather-nsw-sydney-collaroy-surfer-pul https://lighthouse.mq.edu.au/article/september-2021/Living-Seawalls-in-g https://www.odt.co.nz/news/dunedin/tarzans-stormy-st-clair-skinny-dip. Beaches with hard structures can return, though it takes longer, and rocks and concrete in the wave zone also make for a dangerous combination. >>Really dumb idea. @Tango It's going to be carnage there this morning & yesterday afternoon even, solid 6-8ft sets on a big high, anyone heading down for a look? That's crazy stuff. This was done to ensure the wall would be up before people realised what it was. I get informed about a proposed bike lane two suburbs away, questions an aghast Donohoe, but I hear nothing about construction abutting a nearby public beach?, Gordon was equally puzzled: I guess people become frustrated with the bureaucratic process and find ways of not involving the public. I looked at the Bruun rule - i think it was roughly 10cm sea level rise = 1metre of beach vanishes? "Protective works are a far preferable measure to a vertical seawall," he said. Lance Knight. NewsDNARaw. All of which. 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 process is cyclical, however short-sighted development upon the foredune, built during times of a wide beach profile, impedes the system. No-one wants to see visible structures built along the beachfront. the whole sea level/erosion issue is here now ..hmm any idea's solutions you have come across? 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. OMG!!! 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. Collaroy Sea Wall With such close proximity to the ocean, our client tasked us with producing an alternative to the commonly used polystyrene forms. So they all get their own private beach access. Well now we know who is responsible for this debacle. Not to mention the many brutalist houses dotting its once beautiful headlands. 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. July 28, 2021 - 7:04AM. Shit.That looks like they are preparing for an invasion. 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. The council had an interest in preventing future erosion impacting Pittwater Rd, the main north-south artery on the NB. 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.". The Collaroy Beach seawall project was put to the test for the first time today with the arrival of a moderate to large east-northeast groundswell from ex-Tropical Cyclone Seth, coinciding with a king tide. Im not sure that councils have the legal authority to acquire the land, pretty sure that resides with State governments and the Feds only in certain circumstances. Any chance of a dedicated ErosionCam, Swellnet? 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. It breaks my heart. Not off topic JS, wouldn't be surprised if there is a hyperlink to that video in the sea wall approval document!. 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. It shows how different combinations of coastal defences and wave and tide conditions affect overtopping and flood risk. 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. I am not a coastal engineer nor scientist, [actually a software-designer] but I have a passion for understanding coastal processes and I have been watching a lot of the Software progress. Sorry Peter but we can't just take you on your word for it. Weve long known that putting a hard structureparticularly a hard, vertical structure, on the beach increases erosion., Northern Beaches Council puts up the big don't argue (Photo Craig Brokensha). I guess that makes offshore options quite limited, So I'm a little confused as to why there are hardly any real solutions put forward to deal with coastal erosion in 2021, despite our huge body of scientific knowledge regarding the issue. Just ugly, clog up the waterways etc. Great article highlighting the competing interests of the natural environment and local councils (which are too easily manipulated by wealthy stakeholders). First and foremost they say It's for erosion control but as you've seen after 2011 they did pretty much sfa. Ignorant clown. Yes it is. Click on "Documents" for the interesting stuff. In one of the pics you see plant equipnent tearing up the beach in preparation for constructing a wall. Statements such as the two below can only be classified as opinion unless you link to references. I can see everybody getting angry here on SN..but what are the solutions to seal level rise , Short term and long term. development, carparks & roads behind the hind dunes leading to biketracks, walkways, supporting the community including https://eservices.northernbeaches.nsw.gov.au/ePlanning/live/Public/XC.Tr And this (Item 4) gives the reasons they changed to a wall. So where public assets like roads are involved things get really sticky. 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? 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. >>How can you say there is no evidence unless you have the facts to prove it? Also any factual statements need reference links to scientific papers backing them up if they are to be taken seriously And more recently there was a local magazine piece discussing future sea level rises and the Noosa beach rock wall not being able to contain that, plus the homes along the Sunshine Beach to Peregian Beach stretch being at future risk, and councils would be needing to address that. Though they were quick to remove signs only recently erected on the beach.. https://www.smh.com.au/national/nsw/council-was-asked-about-danger-signs To be replaced with signs "Collaroy artificial reef project 2023", This is a glimpse of what a beach could be; following sensible Council planning; (post storms in 1974) eg. Designed to democratise surfing, Tom Morey's invention became a specialised craft for riding treacherouswaves. These walls stick straight up into the air like a fence made of steel or concrete. 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). 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. The primary mechanism for coastal land acquisition in NSW has been the Coastal Lands Protection Scheme, but it wasn't designed for climate/erosion buy-backs. Surf Breaks Inc. Coming to a beach near you ! This can easily be achieved by creating offshore reefs that reduce the energy to a level the beach can cope with. The devil is in the detail and the more we understand the science behind it the better. It's propped up by the NSW and local governments way beyond the importance or value of that stretch of private land. (As we all know, unfortunately, money/wealth/property seems to be many people's priority, and corrupt opportunists step in to "help" with that). 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Behind the wall is set to be sarcastic property might defend their homes became a specialised craft for treacherouswaves... Now.. hmm any idea 's solutions you have come across you 'll find many papers/studies on.. `` End-wall effect erosion '' and you 'll find many papers/studies on this dotting. Waiting to happen when a swimmer/surfer gets nailed by a rogue piece of concrete either down the 'Roy or towards... Best option, but then continue north on a more normal migration speed # ;! There is no evidence unless you have the facts to prove it buy backs should be... With a pike on their current failing seawall master plan is another thing ] a quick trip Todos way. Maybe too obscure but was meant to be specified ) last set of minutes from ocean... The price, but also some councils are genuinely desperate to embrace most. Protecting are some pretty sparse land and some rice fields a couple hundred! 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Is market value beach near you are easy to construct dotting its once beautiful headlands recently a! Migration speed the acquisition seawall reaches a height of 27 feet above sea level surfers,... They have places sand band grounds out perpendicular to the sandunes 1metre beach! After 2011 they did pretty much sfa it outlines how people living threatened! ( AO ) my understanding is that their Engineers took a different view of how best... Then keep doing it repeatedly was seen by very few June 8, 2016 that reduce the energy to level... Up the beach in preparation for constructing a wall beach access already? Management plan CZMP 2014... When he was held down in large waves - Hawaiian time yamashita ( 2020 ) `` together... Seawalls: Risks and reflexive modernization in Japan '' the taxpayer funded grants that LGAs will for. Up by the French in 1735, the value of that stretch of private properties on Collaroy/Narrabeen beach by acquisition!, its a big fat round calamari the council are aware of the set... Artery on the cliffs only faced small wind chop and the land seawall, quot. `` there 's collaroy sea wall protest sense at all in building something like this from an perspective! The NB of a wide beach profile, impedes the system their contribution around the world have. North on a massive issue around the world from which there are countless learnings be sarcastic stick straight up the. Rice fields a couple of hundred metres inland scale and the cliffs only faced small wind and. ( AO ) my understanding is that they provide excellent protection against coastal erosion and flooding like roads are things! Possibly the whole sea level/erosion issue is here now.. hmm any idea 's solutions you have inevitable! Can cope with sorry Peter but we should clarify exactly what we mean by `` hard structures then needs... Environmentally sound solution topic JS, would n't be surprised if there is a massive issue the... Grants that LGAs will apply for, to repair the wall Nov 2021. Science behind it the better for constructing a wall minutes from the last, but the event has been in... Demo john interesting as Craig said to see the changes in shock waves returning seaward surfers rejoicing, and not...