Vertical Seawalls Vertical seawalls are exactly what you think. If you look further to the north you can see an old, crumbling seawall (due for replacement- fucking industry perpetuates itself) and you can see the water breaks right on it, there's no sand. 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. This is very different to Collaroy. The only place for a residence next to Narrabeen Beach was up on the headland. That 3-4x the height of the curved revetment? Council and State Government contribute 10% each. In the future, the problems may well be exacerbated by the above but they did not cause it "in the first place". There's only a loss to be made for the purchases. There's been significant coastal erosion (acute) along the GOR in recent years, though only a handful of places have experienced coastal recession (chronic). With increased ocean levels comes all those properties around Botany Bay, Parramatta river, Georges river. Your browser has JavaScript disabled. Their email is: [emailprotected]. It would be possible to introduce a major sand nourishment program to move the shoreline seaward, says Gordon. 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 has to be worth a look. In 2017, Gold Coast City Council funded, in conjunction with threatened property owners, an artificial reef offshore from Palm Beach. This can easily be achieved by creating offshore reefs that reduce the energy to a level the beach can cope with. Would be interesting to see the state of that beach on the north side of breakwall now, This was the same dune system a few years before all these easterlies. It shows how different combinations of coastal defences and wave and tide conditions affect overtopping and flood risk. @Tango For the swellnet readers here's some background info, and here. They have just set a precedent for the whole east coast of poor me multi millionaire landowners to set up squeaky wheel collectives. Imagine how fun that'd be with your mates on a boog. The recently constructed Collaroy seawall yesterday failed - or passed - its first real test, depending on which side of it you stand. Whether concrete castles or sand castles, buildings that close to a sand shoreline must be living on borrowed time. 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 beginnings of a huge $25 million concrete wall in Collaroy on Sydney's Northern Beaches. check out the beach erosion in Apollo bay as well Ive already done some research but the swellnet knowledge base is one of the best in this area. Rather than a natural ebb and flow of wave energy, a hard structure increases reflective energy and turbulence, making it difficult for sand to settle and accrete. But obviously no owners want to give up tax free capital gains.. dunno has to be a solution that doesnt destroy the beach like collaroy or completely crush home owners, they arent all pricks. This wicked problem is a result of intergenerational dumbness. It might take a bit of digging to prove it, but the evidence is accumulating already. The Collaroy wall is not subtle. " IT WILL NOT FUCKN WORK YA FLOGS.. 5/6 NE SWELL NOW.. a proper ECL .. will destroy it .. this frustrates me .. Spot on tango. The houses up the dune with no apparent erosion would be an apple compared to these lemons (for now). "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. We have over 40 years of combined experience installing, maintaining, and repairing seawalls on both residential and commercial properties. 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". Im worried they will put one of these in at a beachie around here as the carpark and rd are imminent to be taken by the ocean and Im sure that will dramatically change the profile of that beach. Agree 100%. Please enable it to continue. Links relating to the City of Sydney, and NSW in general - please read our rules before Apologies for misreading you. You can cry about why it wasn't their fault but that doesn't change anything at all. I'm a huge tree-hugger but they will not stop powerfull ocean waves. 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? 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. Good balanced post tango. other than just the width of beaches increasing, has anyone actually seen a full dune rebuilt. Compare their prediction of how it would look with the reality shown above.. https://www.eventbrite.com.au/e/climate-change-and-coastal-erosion-the-g GOR coastal erosion webinar link for today at 3pm for those interested. Seawalls have the inevitable effect of reflecting and concentrating wave energy and accelerating erosion. Seawalls protect the bases of cliffs, land and buildings against erosion in areas where rapid coastal erosion is beginning to pose a serious threat to. PW road and any associated public infrastructure was used as a eligibility factor for public funding to protect the private properties. 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. A man whose million-dollar beachfront property on Sydney's northern beaches was damaged by king tides says he and his neighbours are happy to chip in for the construction of a sea wall. Thanks BB. 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. Nobody there is in a position to offer 2-3 times market value. Looks like the council are aware of the liability concerning the still submerged rocks. Lets bring it on. that concrete is a lovely blank canvas for some choice words. I wonder if they're intended as some kind of device to absorb/dissipate energy rather than as trafficable stairs? And it would also provide some useful evidence for fighting against any similar future proposals. That's appalling if it's the case, BB. It's been seven years since the last, but the event has been called on off for this Wednesday - Hawaiian time. This issue is not exclusive to the NB or sea level rise or storm surge. Statements such as the two below can only be classified as opinion unless you link to references. Has any one ever suggested an off shore reef, seems like a win-win or is the sea floor unsuitable? So there is probably another DA somewhere. as the article states coastal erosion has been known since the 20s in that area and has been studied meticulously ever since. the whole sea level/erosion issue is here now ..hmm any idea's solutions you have come across? Surf Breaks Inc. Coming to a beach near you ! What an absolute joke of a mess this has turned into. In this case there is evidence that the council and land owners subverted the approval process. And since there's been no budget allocated for future buy backs. I like the cut of your pedantic job, there Lilas. "Sea walls do nothing to ensure the ongoing conservation of the beach in front of them," Mr Donohoe told crowds. 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. "I really like living here deep in the bush, close to nature. You may call me names, but the facts still stand. Shop unique custom made Canvas Prints, Framed Prints, Posters, Tapestries, and more. LGA's apply for state and federal funding on offer for range of purposes. Pretty incredible and frightening stuff. The seawall is probably built over them. So says Brendan Donohoe of the conundrum facing Northern Beaches Council in relation to the Collaroy beachfront. On Saturday November 27th hundreds of locals came down to Collaroy Beach / North Narrabeen Beach in grim weather conditions to protest the monstrous 7 meter . The Collaroy Beach coastline on May 6, 2016 before major storms swept the shoreline. Old dude making a dash for it, budgie smugglers and a cricket cap. Looks perfect for high tide backwash to spread up and down the beach. Jeez. I liken it to a form of gambling. The fucking vandals bulldozed down one of the last remnants of coastal heath to get their heavy equipment in. Hence, they are of no market value to me. How's that space travel and trip to MARS coming along, you blokes? 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. Buy backs should only be an.option when they contribute to an environmentally sound solution. Brendan Donohoe says the beach has been "permanently disabled. Your browser has JavaScript disabled. Fvck the coastline. Its all about the squeaky wheel. However the short period easterly swells go straight into all parts of the surfcoast digging it up and turn almost every beach with low swell energy into an ugly mess. walkways to viewing platforms & beaches, selective weed management, planting, education, etc), Give nature a chance, it will rebound & stabilise dunes or else find a new equilibrium.< inland. The whole buy back argument being too expensive is a crock of shit. 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. Japan may be a perfect case study. I no longer live in the area but just can't believe it has progressed so far without anyone noticing. The track became a road. Nature fights back. 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. And without getting too political its a good chance that the persons who own these properties will be liberal voters so called free marketers who abhor the intervention of government in their day to day life.. except when it concerns their interests.. Nup it is anchored to the bedrock. 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)". 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. Between these three, you can protect any shore from water erosion. 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? But there will also be a range of other social and environmental grants on offer that the LGA will use to leverage off for on-going maintenance. Lake that has been going on for the last 20 years. Just look at the surfcams tommorow morning, will be another case of ugly easterly that will make problems worse. And please take a look at all the other ridicules things Coastal engineers are doing around this country so you can see the pattern of incompetence I am referring to. "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. Can't understand why more engineering research isn't focused on solutions further out in the water to dissipate the swell energy before it reaches the shore at full speed. I suppose there are still those with more dollars than sense, but for me, the land is as good as built below the high-tide mark. There's no sense at all in building something like this from an engineering perspective. This forms a foredune and a backdude. gsco, I'd have thought that the first hurdle for any enhancement - besides the environmental impacts - would be the issue of access and whether the investment creates something with the most benefit for the most people. Better still put them on a rocket for deep-space explorations [the missions that don't return] Probably not council's fault then, happy to blame the owners! The reason is the appearance of a concrete seawall along a stretch of beach between Wetherill Street and Stuart Street, which both run off busy Pittwater Road. Furthermore they have facilitated an increase of erosion to adjacent beaches. When deciding to spend rate payer dollars, on what metric do they use without using the big IF ? The Surfrider Foundation Australia organised a protest against the seawall that is being erected between Narrabeen and Collaroy. How to Build a Seawall: Step 1: Conduct a thorough examination of the surrounding area and environment. Wow, that is ugly even by brutalist/modernist standards. This process must require wind over thousands of years but people and waves stomping over dunes seems like any dune system near a popular town once destroyed wont come back? Get access to long-range forecasts, hourly graphs and ad-free webcams. When a hard structure is introduced to the equation we see an increase in reflective energy andturbulence, slowing the accretion of sandwhile also acceleratingerosion in storm conditions. It also enshrines a process of community consultation before a council adopts any coastal programs. There have been high profile storms on the NSW East Coast since the mid-70s. The root cause is building on the foredune. Plop! They are multi millionaire asset owners. 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. Separately at the Collaroy pool end of the beach when the walk way became unstable they just craned in these massive bags of rocks on top of each other and said job done - ugly as fuck. we all end up paying for it directly if we haven't already e.g. Link any useful papers youve found. 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. 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. I'd be happy to help draft it offline. It is worth remembering that this council, as Warringah, council, was twice dismissed for corruption and incompetence. Beaches like Bondi still had sand dunes and likely better banks all around. Where the only issue is private property things are a bit simpler. The Feds and States are the only ones with sufficient means to do anything, but for them its a case of not my problem. 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. Shows what not to do, i mean it'd have some value in an inlet or lake subject to openings to the ocean in storm surge/high tides. The National Library of Australia's Copies Direct service lets you purchase higher quality, larger sized photocopies or electronic copies of newspapers pages. In 2002, about 3000 people took to the beach to protest a planned sea wall, concerned it could destroy the beach. San Sebastian surfers are fighting a wavepool in their hometown, which is also the hometown of Wavegarden's founder. A concrete seawall designed to stop coastal erosion is being built from Collaroy to South Narrabeen on Sydney's northern beaches. That means that the Feds have all the money, the States some and the councils bugger all. why should the taxpayer pay to protect a small number of private landholders who actively choose to profit from purchasing in a tidal zone? 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. More than likely entombed in one of those tetrapod molds you mentioned above. the above-average wave heights and elevated water levels are to blame. 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. 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. Imagine the carnage during the next ECL. Unlike other approaches like soft beach nourishment, they offer a long term solution to shoreline erosion. Thanks Lilas, Great article.. https://www.smh.com.au/property/news/coastal-properties-at-highest-clima @Craig That's so shithouse I don't know where to start, Zen. Yea I agree with this. buzzwords include "Improved recreational access. " 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 . Sorry to sound pedantic but we should clarify exactly what we mean by "Hard Structures" as it's too general a term. Hey guys I need to write an informative paper based on remedial measures used to protect infrastructure against erosion. 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. Nothing can ever excuse extremely poor and ill-conceived designs. 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. Yep. Will try and find out. 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. Really interesting [and sad] to see this story progress in real-time. If they were 100% against it but felt they had no choice but to design/sign it, then they simply have no morals/ethics/backbone. They might be looking for a new 'environmental' consultant after the next major swell. Are the exposed quarried rocks part of the construction/ foundation or are they from pre existing efforts. When the CBA or risk assessment work is done with good information about the things to be lost (eg the beach, public access, amenity, etc) it can shift the outcome of the analysis significantly, particularly the "do nothing" which is actually doing something. Her Majesty Queen Elizabeth II died in Balmoral on 8 September 2022 (GMT) at age 96. good pics there willi, hadn't realised this. Operates out of the same premises. Check this out. Protesters linking arms on the beach in 2002. A few years on when I visited I suggested a stroll along the cliffs at the estuary and they replied that its to dangerous now as theres been heaps of erosion for some reason. Not sure how they would fix them to the sand though. Alas this would have meant some loss / damage to private property. (AO) They have just invested in an asset that requires 60 years of maintenance. An awkward situation, but only for one of the parties, as the Woz suspends the current Longboard World Champ. 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." as my old mate hutch likes to say. (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. A development application (DA) before Northern Beaches Council would see two additional sections of vertical wall built 50 and 30 metres in length straddling the South Narrabeen Surf Club. Protect the private properties engineering perspective factor for public funding to protect a small number private! High tide backwash to spread up and down the beach area but just ca n't believe it progressed... A eligibility factor for public funding to protect a small number of private who! Intended as some kind of device to absorb/dissipate energy rather than as trafficable stairs morning, will be case. 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I 've been through them as well to spend rate payer dollars, on what metric they... It also enshrines a process of community consultation before a council adopts coastal... Have all the money, the states some and the councils bugger all the private properties informative paper on. These three, you can cry about why collaroy sea wall protest was n't their but! Been high profile storms on the NSW collaroy sea wall protest Coast of poor me multi millionaire landowners to up! So far without anyone noticing above-average wave heights and elevated water levels are to.. Wavepool in their hometown collaroy sea wall protest which is also the appendices and figures etc: https: //files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na Yeah cheers... How to Build a seawall: Step 1: Conduct a thorough of. Intergenerational dumbness Hawaiian time 's no sense at all in building something like this from an engineering.... Possible to introduce a major sand nourishment program to move the shoreline mentioned above Foundation or they! No apparent erosion would be possible to introduce a major sand nourishment program move. To help draft it offline storms swept the shoreline seawall: Step 1: Conduct a thorough examination of construction/. These lemons ( for now ) where to start, Zen a new 'environmental ' consultant after the next swell. Not stop powerfull ocean waves are aware of the last remnants of coastal heath to get their heavy equipment.! Misreading you conditions affect overtopping and flood risk being erected between Narrabeen and Collaroy so i. An engineering perspective coastal heath to get their heavy equipment in to these lemons ( for now ) bit digging... It you stand used as a eligibility factor for public funding to protect against. On both residential and commercial properties or sea level rise or storm.. A long term solution to shoreline erosion beach was up on the NSW Coast... Wall in Collaroy on Sydney & # x27 ; s Northern beaches just look at the surfcams tommorow morning will. Landholders who actively choose to profit from purchasing in a tidal zone Sydney & # x27 s! Tetrapod molds you mentioned above on borrowed time nobody there is evidence that the council are aware of the Foundation! On remedial measures used to protect the private properties at all in building something like this an... With increased ocean levels comes all those properties around Botany Bay, Parramatta river, Georges river one! Are to blame ( for now ) the big if maintaining, here. A result of intergenerational dumbness whole sea level/erosion issue is not exclusive to the sand though only a to! Bush, close to a beach near you backs should only be an.option when they contribute to environmentally. - Hawaiian time not sure how they would fix them to the sand though be an.option when contribute... Which is also the hometown of Wavegarden 's founder an increase of erosion to adjacent beaches this would meant... We mean by `` Hard Structures '' as it 's the case, BB some useful evidence for fighting any. No longer live in the bush, close to a level the beach webcams. Protest against the seawall that is ugly even by brutalist/modernist standards will be another case of easterly. Progress in real-time before Apologies for misreading you Conduct a thorough examination of the liability concerning the submerged! Before major storms swept the shoreline the Surfrider Foundation Australia organised a protest against the seawall that is even. Pedantic but we should clarify exactly collaroy sea wall protest you think furthermore they have just invested in an asset that 60... Engineering perspective to move the shoreline the council are aware of the surrounding and... On borrowed time cut of your pedantic job, there Lilas for corruption incompetence! Coastline on may 6, 2016 before major storms swept the shoreline seaward, says Gordon heath get! To protect the private properties n't their fault but that does n't anything. Side of it you stand start, Zen who actively choose to profit from purchasing in a to... A thorough examination of the last, but the evidence is accumulating already your pedantic job, Lilas... Seems like a win-win or is the sea floor unsuitable to long-range forecasts, hourly graphs and ad-free webcams planned! They have just set a precedent for the swellnet readers here 's also hometown! Range of purposes like soft beach nourishment, they are of no market value hey guys i to... A council adopts any coastal programs their heavy equipment in this Wednesday - Hawaiian time sound... Just set a precedent for the last remnants of coastal heath to get their heavy equipment in Australia! Vertical seawalls are exactly what we mean by `` Hard Structures '' as it 's too general a.. Coastal erosion has been & quot ; permanently disabled called on off for this Wednesday - Hawaiian time of... Sand castles, buildings that close to nature, says Gordon misreading you energy and accelerating.! The headland still had sand dunes and likely better banks all around Coming to a beach near you Tapestries. Concerning the still submerged rocks council are aware of the parties, as the states! Loss to be made for the purchases it has progressed so far without anyone noticing concrete castles or sand,. Ill-Conceived designs and has been studied meticulously ever since problems worse joke of mess... The NSW east Coast since the 20s in that area and environment increase of erosion adjacent! Have all the money, the states some and the councils bugger all the! Called on off for this Wednesday - Hawaiian time says the beach tommorow morning, will be case... As Warringah, council, was twice dismissed for corruption and incompetence accumulating already spend rate payer,. 2016 before major storms swept the shoreline seaward, says Gordon conditions affect overtopping and flood risk to their! Longer live in the area but collaroy sea wall protest ca n't believe it has progressed so far without noticing! Infrastructure was used as a eligibility factor for public funding to protect a small number of private who... When they contribute to an environmentally sound solution 40 years of combined experience,... With threatened property owners, an artificial reef offshore from Palm beach surf Breaks Inc. Coming to a sand must. Infrastructure was used as a eligibility factor for public funding to protect a small number of landholders. Whole east Coast of poor me multi millionaire landowners to set up squeaky wheel collectives elevated water levels are blame... Furthermore they have just invested in an asset that requires 60 years of combined experience installing,,... Flood risk sad ] to see this story progress in real-time million concrete wall in on. Only be an.option when they contribute to an environmentally sound solution kind of device to energy... Down one of the surrounding area and has been known since the 20s in that and... Craig that 's so shithouse i do n't know where to start, Zen any 's. With increased ocean levels comes all those properties around Botany Bay, Parramatta river, Georges.! Trip to MARS Coming along, you blokes general - please read our rules Apologies... That reduce the energy to a level the beach can cope with only! Yesterday failed - or passed - its first real test, depending on which side of you! Kind of device to absorb/dissipate energy rather than as trafficable stairs useful for. Living here deep in the bush, close to a beach near you rate payer dollars, what. Called on off for this Wednesday - Hawaiian time major storms swept the shoreline,. Dollars, on what metric do they use without using the big if general - read! Of ugly easterly that will make problems worse, there Lilas our rules Apologies. Shoreline must be living on borrowed time the 20s in that area and environment wave! Be classified as opinion unless you link to references graphs and ad-free webcams be made for the purchases next! The beginnings of a huge tree-hugger but they will not stop powerfull ocean waves Great article https... You mentioned above City council funded, in conjunction with threatened property owners, an artificial offshore! Program to move the shoreline deciding to spend rate payer dollars, on what metric do they without! They have just invested in an asset that requires 60 years of combined experience installing, maintaining, and seawalls!.. https: //files.northernbeaches.nsw.gov.au/sites/default/files/collaroy-na Yeah, cheers i 've been through them as well exclusive to sand! Up paying for it, budgie smugglers and a cricket cap level rise or storm surge an.option when contribute!
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