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. Environmental vandalism or gross negligence? This has cut into the base of the dunes below the surf club. The council now will not release the relevant documents without a formal application and even then would no doubt find reasons to withhold the significant parts. https://nationalprecast.com.au/wp-content/uploads/2015/06/Collaroy-Beach 2020 Surfer keelhauled by Collaroy Stormwater Pipe {RIP} "I really like living here deep in the bush, close to nature. Stop wasting money and do something that will achieve the intended goals. I think the re-sale value of their properties trumped their ability to access the from their back garden. 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. I wouldnt have thought there would be much fetch? I avoid it because I dont think anyone truly is except for a small % of big players who manipulate the market (or act like the house) and the rest just ride the peaks and troughs. Who could forget the MOLE building or the spoil from the North Head Sewage Works tipped over the cliff? 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.. 3) How much has Council spent on legal fees defending Land & Environment Court appeals related to seawalls since the 2016 storm? And in the approval documents was there a long-run cost benefit analysis evaluating the 2 treatment options of wall versus buy back and restoration. consultant reports and community consultation no doubt funded by state money. Collaroy has a long history of property erosion, yet a century after it was first documented theres no consensus about how it should be managed. Thanks heaps for the update Craig. 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. 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. Nothing can ever excuse extremely poor and ill-conceived designs. brutus Collaroy was not a typical situation. Ratepayer/taxpayer bailout, so business as usual whatever happened to caveat emptor? I recently moved house [Northern-Rivers nsw] and seal-level rise was a very serious consideration of mine. Construction of a seawall is underway to protect homes at Collaroy Beach. Go figure! They are frequently used in locations where further shore erosion will result in excessive damage, e.g. Not sure why coastal ginger beers (engineeers) assigned by local councils just keep getting it wrong, but it would be fascinating to go through the meetings minutes of how these get passed, and the deceptive and misguided arguments that must be being put forward. the Senior Environmental Officer" Northern Beaches NSW govt!! Will it make Carties better or will kooks just ride into the wall even more. Ben, yes there are submarine cables and the protection zone is there to prevent damage to the cables, but I don't think that would preclude construction of reefs, it just means that any proposed reef design/construction would have to be in consultation with the cable authorities. Mentioned in a previous article (linked below) - the region hosts submarine cables, so it's part of the Northern Sydney Protection Zone. we all end up paying for it directly if we haven't already e.g. Proven time and time and time again that sea walls do not work- period. 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. They have just invested in an asset that requires 60 years of maintenance. I wonder if they're intended as some kind of device to absorb/dissipate energy rather than as trafficable stairs? Climate projections will have some Australian surfers rejoicing, and others not so. Indeed. 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. So where public assets like roads are involved things get really sticky. I find the whole thing fascinating, I had guys from the council to my face tell me of a future with 52 day heatwaves & in the same breath tell me of being concerened about extreme cyclones & erosion. Not every beachfront owner is a cashed up prick, some have been there 50 years when climate change etc wasnt on the radar. besides Id rather just shout at my computer. Everything else may go but that wall is here to stay. It's propped up by the NSW and local governments way beyond the importance or value of that stretch of private land. 100% agree Craig, the only option is to buy back the properties and be done with it like they should have done years ago. Link any useful papers youve found. This would reduce the lateral movement of sand along this stretch of beach, reducing the natural erosion while creating some great banks. In the end it's all pretty simple though, as most beach erosion of consequence is caused by large/powerful waves. Tonights high tide is 1.34m, tomorrow morning is 1.96m. Great stuff. Plop! Surf Breaks Inc. Coming to a beach near you ! This also creates problems when people try and keep claiming land as shorelines migrate seaward in times of accretion. 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. I would rather have seen the money go into a couple of California style piers. 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. Would be really good to see an article on the current state of affairs in the Coastal engineering world. 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. Fvck the coastline. There is no evidence whatsoever of accelerated erosion seaward of these newly constructed works. 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?? Who is going to want to inherit that when they exchange contracts? Good point, lilas, that explains the mystery of why aborigines didn't build their homes close to the ocean. No fuckers complained about the rebar reef. Also any factual statements need reference links to scientific papers backing them up if they are to be taken seriously "The only feasible way forward without wasting any more council and tax payers money to protect the properties in question is to acquire the properties at any cost and return them to a naturalised stated." BB has there been any attempt to take the process to the Land and Environment Court? Also I'm suspecting at the lga level the up front investment to do this work can be a hard sell. I like the cut of your pedantic job, there Lilas. 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. The state government and council are together tipping in 20 per cent of the costs for the construction of a wall stretching from Collaroy to South Narrabeen after heavy surf and powerful storms . Thanks again for your time and effort to make these articles, as we all truly appreciate them. On the MP they blew the heads up and the erosion from Portsea front beach to the heads is crazy. One thing about mankind. (btw if you're the Jody P I'm thinking of, you're an absolute legend mate!). There are some fed govt areas that listen to this thinking. 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. Probably not council's fault then, happy to blame the owners! Wonder if he has been down there in the last 2 days to check on status of wall? Theyve introduced these gently sloped walls to broaden the widths of the roads to protect them from erosion. The public should not suffer loss of amenity or pay the costs to protect it. The houses up the dune with no apparent erosion would be an apple compared to these lemons (for now). So they all get their own private beach access. 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. 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. Inevitable as the ocean winning, is a painted "cock and balls" on that wall. That's so shithouse I don't know where to start, Zen. Ive already done some research but the swellnet knowledge base is one of the best in this area. RAW footage from this week's extra-large swell at Peahi. 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. Really interesting [and sad] to see this story progress in real-time. I've written about it before but the real reason here is money- it is massive pork-barreling on an unprecedented scale. If anyone used it and saw the second DA let me know. The Northern Beaches took a massive hit by big surf and a king tide . There are three main types of seawalls: vertical, curved, and mound. 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. Sounds like you are pretty deep in that world! sea wall is perfect. Yes and do they have tactile indicators in the correct place? This is an example of the walls theyve been placing. >>How can you say there is no evidence unless you have the facts to prove it? that concrete is a lovely blank canvas for some choice words. It's good to see some enlightened input from Brendan and Angus, both of whom have extensive experience in coastal management from planning and engineering backgrounds. For some it. Dates announced for Spencer Frost and Guy Williment's film shot in Russia's far east. 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. It ran northwards around the back of the lagoon and on toward what is now Collaroy Beach. It's like companies using buybacks in a crisis. Amongst other things, it is illegal to "establish, maintain or use a spoil ground or other ocean disposal point (including dumping materials at sea)". And thats being generous. Any system that affects the coast from a different angle upsets the balance of that orientation and the system then takes considerably more time to re-adjust. 47 votes, 47 comments. If you are referring to Vertical hard structures then that needs to be specified). The thing is- in those pics, behind the walls, there's really not much to protect. "Protective works are a far preferable measure to a vertical seawall," he said. Again this can only be taken as opinion without proper scientific references. Isn't an extension to the Point Cartwright breakwall on the cards aa well? 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). It's folly to believe you can hold back the Pacific. Northern beaches residents have been worried about how their beloved beach would fare when large swells and high tides hit the controversial Collaroy seawall. 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. Highly unlikely! That means that the Feds have all the money, the States some and the councils bugger all. Then there is the question of the parameters given to the designers of the second structure. This paper by John Corkill is worth reading if you're interested - he's a legend. PW road and any associated public infrastructure was used as a eligibility factor for public funding to protect the private properties. Will try and find out. Jeez. Can somebody please sack almost ALL so called coastal engineers for Fuck's sake! A seven-metre high wall erected to protect beachside mansions from being washed away has sparked debate among locals in a wealthy Sydney suburb. @Craig - Seem us humans have been doing dumb shit for quite a while now. There is a significant risk that, as Craig suggested, end wall erosion will simply move the problem and lead to calls for extending the wall. Sea level rise equation is based on the Bruun Rule to ascertain erosion in open coastal areas like Collaroy. This is very different to Collaroy. At what point do we put an end to this insanity. "Have you ever seen such a magnificent view as the one from our balcony overlooking this active volcano? I was watching the houses on the cliffs at Bilgola the other day. Sorry to sound pedantic but we should clarify exactly what we mean by "Hard Structures" as it's too general a term.
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