I hope this Collaroy wall hasn't set a precedent. Stupid dumbfucks. In a story on Northern Beaches Review, Bob Orth, who lives in one of the houses behind the seawall, said the seawall should inspire others to do likewise. Collaroy's existing situation is precarious at best. Kimura (2016) "When a seawall is visible: Infrastructure and obstruction in post-tsunami reconstruction in Japan" Sorry to sound pedantic but we should clarify exactly what we mean by "Hard Structures" as it's too general a term. Please include direct and indirect costs. 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. Rad demo john interesting as Craig said to see the changes in shock waves returning seaward. I've got a mate who works for MHL as a coastal engineer. 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. 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). Maybe you New South Weleshpeople do things differently. Pipeline specialist injured while duckdiving in heavy waves. Im not trying to be a dick about it. Will it make Carties better or will kooks just ride into the wall even more. I think this was done for the first DA, the sloping rock wall, rather than the vertical one that was actually built. You don't have to look around the world because the Gold Coast has implemented the only effective "non- ugly as fuck" option at Palm Beach Qld. https://www.celeria.org/ 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. Last Wave inalways team up with surf buddies to safely exit yer local Seachange Monstrosity. Step 5: Construct the Seawall. It has to be worth a look. Has any one ever suggested an off shore reef, seems like a win-win or is the sea floor unsuitable? Current property values have ensured that this mistake will never be righted. 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. I just can't see HOW these monstrosities ever get approved, purely on an engineering level. Just ugly, clog up the waterways etc. The total contribution of both the Council and the State is $3.46 million, which is 20 percent of the total cost of construction. Sure, but wowee regarding that huge backwash and wave entering back into the surf zone. 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?!! What insanity! did depend a lot on steepness of the beach etc. 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. 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. Not sure how they would fix them to the sand though. It's an interesting point whether you just blame the owners for buying a house in such a risky area and hoping taxpayers will bail them out, versus the fact that the council must have approved people building houses there in the first place (although possibly a very long time ago), "Professor Short said the council bought properties along the beachfront and turned them into parklands in the 1970s and attempted to put a moratorium on redevelopment in the 1980s, but lost its case in court.". Stick your comments up your arse fuckwit engineers dont approve shit like this they get paid to do what they are told direct your retarded comments at millionaire house owners and council you piece of shit. Such a shame its job wasn't to conserve the beach and public access at the same time. This has cut into the base of the dunes below the surf club. If the houses go, the road goes shortly after. which is why the video is so interesting. This sets a very dangerous precedent for the rest of NSW. 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 . If you look a bit to the north you can see the relatively intact beach with a decent amount of sand. A quick trip Todos Santos way during a belting nor'west swell. Offshore reefs would be expensive , but we are already spending 100's of millions on bad solutions that actually cause more problems than they solve so money cannot be used as an excuse. Most of these dunes have been heavily impacted by the La Nia easterlies over the last 2 years causing several car parks next to the beaches to be roped off. The wall is set to be seven metres tall, but three-quarters will then be covered by sand brought onto the beach. The local community group has been protesting against a seawall for almost 30 years. The fact that an engineer/s designed this crazy-ass wall is the concern I raised. 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. https://www.swellnet.com/comment/772908#comment-772908. Any example around the world that have worked with out wrecking a beach but holding back erosion in built up areas ? Brendan Donohoe says the . I don't disagree with most of that. I will try and find some pics of my area. I doubt there will be a demand for the effected given the inevitable. a report a number of years ago by the Great Ocean Road Coastal Committee, GORCCshowed there were more than 47 areas that were of immediate concern where the ocean would cut the road. Whether concrete castles or sand castles, buildings that close to a sand shoreline must be living on borrowed time. The devil is in the detail and the more we understand the science behind it the better. Link any useful papers youve found. Thanks Craig aod if you are THE Jody P, yes you are a ledge. Ray Collins eat your heart out.. Good find. Not even the dude came up with half an ear! good pics there willi, hadn't realised this. 100% agree Craig, the only option is to buy back the properties and be done with it like they should have done years ago. Whether the NSW state government / local council want to backflip with a pike on their current failing seawall master plan is another thing. I am not stock market savvy. Bumper Farrell had the prime position. 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. You'd think that would then open it up for more legal action (aka why did ABC get first dibs and XYZ missed out?). During periods of low swell energy, sand accumulates on the beach, widening the profile and forming a natural barrier for when storms and large waves erode the coastline. So they all get their own private beach access. Might be time to lawyer up. 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. Imagine the carnage during the next ECL. Great stuff. Avoiding these types of impacts has been part of state coastal management policy around the country for the past 30 years. @dawnperiscope. Dates announced for Spencer Frost and Guy Williment's film shot in Russia's far east. 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. Jeez. This also creates problems when people try and keep claiming land as shorelines migrate seaward in times of accretion. Will be ironic if they have to pull it down for not meeting code on the steps. 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. He said when the work is complete, sand will be pushed up to cover most of the seawall. 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. Usually done by compulsory acquisition with the government working off existing market prices. 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.. Theyve introduced these gently sloped walls to broaden the widths of the roads to protect them from erosion. 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. Surely, private properties can be protected but public amenities will require huge ongoing costs to keep up with the public requirement (sand nourishment is the first thing that comes to mind). nothing that a annual maintenance fee paid for by the taxpayer can't fix. In the others, you can see a part of the wall under construction. Protesters linking arms on the beach in 2002. "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. The beach is now too dangerous to walk along and it's one big eyesore. And as I said in my first comment that is because of the road. 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. "community engagement", and my personal favourite "building resilience". Seems from my research, we have actually made a lot of progress towards physics-based numerical modeling of near-shore/beach environments in the last 20 years or so. A barrier reef in place would no doubt have knock-on effects. 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). A seven-metre high wall erected to protect beachside mansions from being washed away has sparked debate among locals in a wealthy Sydney suburb. The beginnings of a huge $25 million concrete wall in Collaroy on Sydney's Northern Beaches. Lol. Though still in its early days, the reef - which cost $18 million - has maintained beach width since it was completed in 2019. It will improve beach access. Or are they just doing it like politicians and getting consultants to advise them and simply ignoring it and doing what they want as they are not bound by law to take that advice. More than double in wealth the last 7 years. development, carparks & roads behind the hind dunes leading to biketracks, walkways, supporting the community including Much bigger. Damaged houses and a collapsed swimming pool at Collaroy beach after waves of up to 8 metres hit the coast on June 6, 2016. The co-founder of Ksubiis to launch a '70s surf-inspired hotel on New South Wales' Mid North Coast. So would you like to inform me as to WHO designed this monstrosity if it wasn't an Engineer? Well go for them, put in your FOI requests and prove what we all suspect; that the council turned a blind eye to save themselves some money and appease a noisy minority. 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. Beaches like Bondi still had sand dunes and likely better banks all around. Who is going to want to inherit that when they exchange contracts? Last Model Run: 15 Jan 11:00AM Local time (AEDT) 15 Jan 12:00AM GMT Data Status: OK. Run Age 9hrs. 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