Dredging of Tweed River to Resume Shortly

Stu Nettle picture
Stu Nettle (stunet)
Swellnet Dispatch

Operators of the Tweed Sand Bypassing (TSB) system will soon commence dredging of the Tweed River entrance. Weather permitting, dredging should start between the 17th and 21st of August, and will take approximately four to eight weeks.

In total, 150,000 cubic metres of sand will be dredged from the Tweed River entrance and delivered offshore of Bilinga, Snapper Rocks, Duranbah, and Fingal.

However, sand is not being placed at Kirra, in fact there is an exclusion zone around Kirra Reef (and also at Cook Island) to prevent any sand deposition affecting the reef environment. TSB claim the reef is regularly monitored to ensure that dredging does not create any adverse effects.

The Tweed River entrance gets dredged each year, usually in late winter as this presents the most favourable weather for dredging. If the swell is too large the dredge can't operate and the vessel needs to shelter and wait for conditions to improve.

Dredging of the entrance is done in conjunction with automatic sand bypass from Letitia Spit. If there were no dredging, the bar would gradually build up making the entrance difficult to navigate. Owing to the bypass system, the process of shoaling happens much more slowly, yet it still occurs.

Comments

Nick Bone's picture
Nick Bone's picture
Nick Bone Wednesday, 4 Aug 2021 at 12:21pm

Why is the a little break line between the Snapper and Dbah sand placement? Is that the state border or something?

tubeshooter's picture
tubeshooter's picture
tubeshooter Wednesday, 4 Aug 2021 at 4:20pm

It's not the maritime border. That starts at the northern edge of Snapper Rocks and extends at an angle of about 60degrees, cutting roughly thru point reef . That line continues for several miles before going to 90 degrees eastward.

truebluebasher's picture
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truebluebasher Saturday, 14 Aug 2021 at 8:59pm

Hot Spot border breaching by Nick & tubeshooter ...bloody excellent work crew!

Qld / NSW No Mans Land is 1/2 Chain or 10m wide.
Extends from 13kms inland to this said point here.
Emergency Use Neutral Zone is very much Heritage Listed.
Protected every bit as much as Cook Island & Endangered Kirra Habitat

2006 War on Terror "Sovereign Borders" bullied State Borders to man up.
https://www.aph.gov.au/binaries/library/pubs/bd/2005-06/06bd147.pdf
Australia' Maritime EEZ ( All states extended 200n miles as one)
Once free Ocean now shares several power mad border zones...as shown here!
Note: There are variations on a theme > Fishing (Similar) > Marine Reserves etc...
http://www.mesa.edu.au/seaweek2010/bkgd02.asp
"No Man's Land > extends > Emergency Pilot Station (Pad) < > Fed Ocean access.

eg: Pandemic NSW/Qld Lockdown > Dutto "Freely" cruises in & sets up Defence Lab Station.
Lab injects Vax into Tweed sewage outfall inoculating all surfers...cures Covid & defeats China!
All without catching covid or upsetting TSBP / Anna or Gladys as crew can clearly see.

2012 is earliest tbb can track TSBP slotting this Heritage / Emergency access.
Like a 24hr easement between compartments.
Normally wouldn't be noticed but for this ongoing project highlights the 10m wide anomaly.

Of course tbb gives crew a choice of something equally as mad.
Emergency corridor can also be a bonus escape valve for TSBP project.
Note if you smother the coastline in sand then the tide can't 'easily' run out...durr!
This amplifies inshore currents ripping away at end of line beaches.
Smashing down 1,000's of swimmers like 10 pins...washing basherz a mile from wave head.
Endless longer whipping wishy washy half faced wave trains flooding the bank.
A powerball effect of combover waves breaking wide & ahead of themselves (A superbank).

Where would Qld / NSW agree to slot a Tidal Drain to slow this mind numbing devastation.
Most would argue the least surfed = shared border break as you see on the Map.
Of interest, the following year 2013 the waves slowed to fire up the headlands..3 months.

tbb is not saying this has any bearing on the above 10m Gap in the Compartments.
Just that all these machinations played out during it's emergence.
Equally say Joel & Mick wanted a doggy door...as Joel was a VIP TSBP Conductor.

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 14 Aug 2021 at 10:26pm

cheers tbb , love ya work
Technically speaking taking off behind the rock at Snapper is a breach of border restrictions. Froggies sand is QLD owned but NSW has jurisdiction over the sea in front of it.

The Albatross is on it's way across the ditch as we speak.

truebluebasher's picture
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truebluebasher Monday, 16 Aug 2021 at 6:51pm

Equally so tubeshooter...NSW agreed to Qld Border version but also Control it.
Policing of Border ever changes Riverbank or Isthmus even to current bubble.
NSW (Officer)Maritime-Rail-Coaches >||< Buses-Roads-Airport (Police State) Qld
Reflects NSW Colonial power >|#|< SEQ Capital expansion.

tbb showed State - Fed (Exclusive Economic Zone 10m Access)
Just checked - Patrol Boats measure 7m across > (Slots into 10m Neutral Zone)

NSW patrol Cooly Bay...as next Port GC Seaway can't service live / release rescues
Qld must sanction NSW to Patrol (Live) Shark mitigation / breaches.

tubeshooter points this out...be cool to share any Maritime Map or agreement?
tbb agrees...NSW must harbour an overseeing arrangement in border waters.
Point Danger oversees north to Surfers Paradise.
This Map designates NSW Marine Rescue Zone in Cooly Bay
https://roads-waterways.transport.nsw.gov.au/documents/maritime/usingwat...
Having said that...Seaworld rescues Whales as far as Coffs.

tubeshooter earns bonus - Sand compartment's stop gap options.
* 2010-13 (FTF) Finfish Trawl Fishery extended to NSW border
Starts 5km offshore (20km) State boundary ( Supports : EEZ )
https://www.daf.qld.gov.au/__data/assets/pdf_file/0016/53134/Final-Manag...
* Fish Stock Channel to detour migration from mass superbank strandings
* Sewage release outfall valve, to ward off Superbank skid marks
* Expansion Gap > Tradies know such an over weighted bedding needs relief.
Gap relieves pressure to prevent undermining any erosion fracture at weakest point.
If Sandbank was to rupture at weakest point it would undermine substrate. (Bad!)
*Huey's Dream Academy essential lifeline.
A deep Ocean feeding tube to revive our lifeless decaying Headlands.

Thanx again Nick...that was the right question to ask!
Locals luv getting thrown a wobbly...almost an underarm that one!

Crew gets rewarded a Sandman Fact Check...
(Rainbow) Balder R > dredged 3,000,000 m3 in 3 months
Tugun offshore Quarry measures 470,000 m3
Albatross dredges 150,000 m3 in 2 months
253 Albatross payloads would be needed to fill the offshore Tugun Quarry.
2020 Albatross dumped 19 payloads into Tugun Quarry.
13 years to fill Quarry at this rate ...That's about the size of it!
Do they then keep cruising north to fill the other Quarries (Chasing their tail.)

philosurphizingkerching's picture
philosurphizingkerching's picture
philosurphizing... Wednesday, 4 Aug 2021 at 12:37pm

Dear Queensland.
New South Wales would like its sand back.
Please dump into these two bays at Evans Head.
If you only have enough sand to fill one of the bays, fill Half Tide(reason-picks up more refracted south swell than Jogglies).
sand-area-infill-evans-head
upload image free

Surfalot67's picture
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Surfalot67 Wednesday, 4 Aug 2021 at 5:09pm

Mate - could you not mention that location please

regydogy's picture
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regydogy Friday, 6 Aug 2021 at 8:25am

what ,, EVENSHEAD , , LIKE ITS A FUCKING SECRECT .BET YOU JUST A NEW COMER IN A NEW BIG HOUSE THERE , MOST LIKELY A MAL RIDER ,

Surfalot67's picture
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Surfalot67 Friday, 6 Aug 2021 at 8:52am

Lol - all caps kook.

sideshow's picture
sideshow's picture
sideshow Saturday, 7 Aug 2021 at 12:49pm

He is surfalot67, so he's either a mal riding 54yr old, or two balls short of a 69 :D

Surfalot67's picture
Surfalot67's picture
Surfalot67 Saturday, 7 Aug 2021 at 12:57pm

Funny guy. Did you high five yourself after you typed that? Re read my comment you muppets, did I mention a location? I don’t live there but the locals I know won’t be impressed with old mate pin pointing a fickle but usually uncrowded gem. You prob surf Burleigh and complain about crowds

sideshow's picture
sideshow's picture
sideshow Saturday, 7 Aug 2021 at 1:06pm

I'm just messing about having a laugh mate, don't take it personally.

truebluebasher's picture
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truebluebasher Saturday, 14 Aug 2021 at 10:32pm

tbb has a secret 1970's Trophy from surfing said Mystery Town's 3 Secret Spots.
1970's Schoolies Secret Spot Surf Safari scored again...on Secret Spot #4
3rd time Lucky on main break with mate...Stoked to see it's still a secret. Salute!

Now Qldurrz are not allowed to surf there unless we BYO sand...(Bonus!)
Bet yer never wish ya said that! Goldie is entombed in The Great Pyramids of TSBP.
Enough to stoke 1,000 secret Spots & unearth 1,000 more of our own lost gems.

stunet's picture
stunet's picture
stunet Wednesday, 4 Aug 2021 at 12:41pm

"New South Wales would like its sand back."

A line best dest delivered with a Toe Cutter accent.

dazzler's picture
dazzler's picture
dazzler Wednesday, 4 Aug 2021 at 2:33pm

Push me, shove you..oh yeh says who

regydogy's picture
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regydogy Friday, 6 Aug 2021 at 8:26am

HAHAHAHAH

Dan Zina's picture
Dan Zina's picture
Dan Zina Wednesday, 4 Aug 2021 at 1:17pm

Meanwhile, in Byron Bay...

Surfalot67's picture
Surfalot67's picture
Surfalot67 Wednesday, 4 Aug 2021 at 5:13pm

Hmmm. Some Bilinga banks would be nice. Always endless gutters and straight handers. History suggests they will save the fuel and just dump off the same patches at Rainbow and Kirra wide, never travelling south of Dbah, or north of Kirra.

tubeshooter's picture
tubeshooter's picture
tubeshooter Wednesday, 4 Aug 2021 at 5:48pm

Yep I agree. They have a definitely have a history of doing that. I have very little confidence that Kirra Reef and a few others won't be affected. I've witnessed them dumping in places they shouldn't have at night too many times.
And those flood lights and sometimes erratic positioning can make coming in or out of that bar in the dark a nightmare as well .

dastasha's picture
dastasha's picture
dastasha Friday, 6 Aug 2021 at 9:09am

Second this.
I'm not so sure its about maintaining a navigable entrance to the bar.
I suspect its about making the Snapper/Greenmount/Kirra section more longboard friendly.
Some A-frames down the Bilinga stretch would be sweet.

andrew-pitt's picture
andrew-pitt's picture
andrew-pitt Thursday, 5 Aug 2021 at 5:28pm

shaping up as a lost opportunity

stunet's picture
stunet's picture
stunet Thursday, 5 Aug 2021 at 5:40pm

Andrew,

If you were the captain of MV Albatros, where would you be dumping your load?

philosurphizingkerching's picture
philosurphizingkerching's picture
philosurphizing... Friday, 6 Aug 2021 at 7:30am

Size of load 120 olympic swimming pools.
150,000 cubic metres divided by 1250(size of olympic pool).
Surely 60 loads for us and 60 loads for them is fair.

tubeshooter's picture
tubeshooter's picture
tubeshooter Thursday, 5 Aug 2021 at 8:04pm

The vessel is in NZ at the moment and can be easily tracked. Including previous track route marks. It shouldn't be too hard to work out where they dump it when they get here.
https://www.marinetraffic.com/nl/ais/details/ships/shipid:251741/mmsi:24... and click on the "Past Track" link left of screen.

freesurfer1977's picture
freesurfer1977's picture
freesurfer1977 Friday, 6 Aug 2021 at 7:58am

What's the $$$ cost of this dredging?? Deep water running around north wall in a north direction. I can't see no problem for any size boat that goes in and out of there. If you can't make it out off that seaway, you have no business being out in open ocean!.

stunet's picture
stunet's picture
stunet Friday, 6 Aug 2021 at 8:09am

"If you can't make it out off that seaway, you have no business being out in open ocean!."

Tell that to Captain Kyle.

udo's picture
udo's picture
udo Sunday, 8 Aug 2021 at 4:25pm

7 weeks of repairs and Begonia is at Nth Straddie......
https://followingsea.net/blog/Begonia

freesurfer1977's picture
freesurfer1977's picture
freesurfer1977 Friday, 6 Aug 2021 at 1:22pm

Curiosity nearly killed the cat,him ,and his passengers. That situation is like taking a plan out in a blizzard,or cyclone,or jump in my car and do a few laps ,as fast as we can go against the clock, but there's oil on the track on 4 major corners.
He tried to cross in the most shallowest part of the seaway. If he was looking for a thrill, I'm sure he got one.
Goes to show,no matter how good you are,or think you are, you can still be a kook and kook it.

groundswell's picture
groundswell's picture
groundswell Sunday, 8 Aug 2021 at 12:28am

Is kirra bank based on reef? since when was kirra a reefbreak? its a shame what happened to that place. Never surfed it either. Didnt have my p's when i went to schoolies.

dastasha's picture
dastasha's picture
dastasha Sunday, 8 Aug 2021 at 8:48am

Sand bottom. There's a spot of reef further out on the shoulder. Basically covered by sand now.
The waves used to come out of deeper water then jack up on the sand.
Now there's so much sand in the bay you can see them feathering hundreds of metres out.
It takes a bit of power out of them.
Its a shame whats happened to surfing in general.
But the boards are better.

tubeshooter's picture
tubeshooter's picture
tubeshooter Sunday, 8 Aug 2021 at 3:50pm

As dastasha says the break itself isn't reef apart from that one small rock.
The reef being referred to with regards to dredging concerns is a small group of rocks further north of the groynes and sits just beyond the surfline in shallow water. It attracts all sorts of life and often lots of it.

wally's picture
wally's picture
wally Sunday, 8 Aug 2021 at 3:58pm

freeride76's picture
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freeride76 Sunday, 8 Aug 2021 at 3:55pm

I've had it explained to me that the reef helped the sand bar by creating a scouring current that helped maintain the deep/shallow gradient of the bank.

that maintained the super hollow nature of Kirra.

anyone else heard that?

tubeshooter's picture
tubeshooter's picture
tubeshooter Sunday, 8 Aug 2021 at 4:13pm

Yep , I've heard that one. Having dived and fished there a lot I'd say the theory is very plausible.
The way the current/sweep moves around the reef when the it's running seems to deepen the edges around the reef naturally.

stunet's picture
stunet's picture
stunet Sunday, 8 Aug 2021 at 7:39pm

No idea about the theory you mention, but I've always wondered about the continuity of Kirra. Like, how back in the 70s, 80s, and 90s it broke close to the rocks, and how now it breaks fifty or so metres further out, and yet it retains its distinguishing features.

You'd think such distance would cause whole new aspects of the wave to show - weirdness, fatness, irregularities - but nup, it's breaking in a completely different patch of ocean yet it's still Kirra.

Mad Dog's picture
Mad Dog's picture
Mad Dog Wednesday, 11 Aug 2021 at 10:18am

Yeah Stu, it's still not Kirra mate unfortunately. The whole sand pump thing killed it, along with removing the end of the groyne.
Come to think of it D'Bah is a shadow of it's former self now too.
The waves were definitely more powerful at Kirra and because of the deep water out the back the size was substantially larger too. Kirra used to hold (real) 6-8 foot easy and it was surfable.
The inside reef at Kirra is now under sand, it was called "The Butterbox" and in big swells you could take off on the boil.
One of the saddest things these days is that Little Groyne at Kirra is gone. We used to get 4-6 foot sand dredging barrels down there....
Toorak's is also gone - there was a concrete outlet pipe from Coolangatta Creek, just South of the North Kirra surf club - where you'd get A frame peaks either side of the outlet.

More breaks meant more places to surf, which spread the crowds out rather than concentrating the take off zones. I guess everything changes though....

udo's picture
udo's picture
udo Wednesday, 11 Aug 2021 at 3:06pm
davetherave's picture
davetherave's picture
davetherave Wednesday, 11 Aug 2021 at 1:13pm

Ah, Little Groyne, sweet, sweet memories. Also Greenie used to wrap and break around the rocks and was a wonderful, wonderful fun wave. Still great waves up there, but with the crowds and current sand formations, it is a shadow of its former self. So thankful I had 29 years living right in the heart of it.

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 21 Aug 2021 at 2:04pm

The Albatross has dropped anchor just north of Kirra after steaming from Brisbane last night. I'm guessing they'll start dredging tonight.

philosurphizingkerching's picture
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philosurphizing... Saturday, 21 Aug 2021 at 3:05pm

And end up making the peel angle at Kirra more acute.

udo's picture
udo's picture
udo Saturday, 21 Aug 2021 at 3:39pm

Albatross visible on big Groyne Cam
Meanwhile the Begonia's new steering setup is not up to the job
https://followingsea.net/blog/Begonia

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 21 Aug 2021 at 4:26pm

haha ,, "We will need to get our thinking caps on and see what we can do.",Begonia log , ... that should be interesting.
Looks like the Albatross has pulled the pick , and is about to kick off.

freeride76's picture
freeride76's picture
freeride76 Saturday, 21 Aug 2021 at 4:42pm

are they going to dredge the insane bank built-up right off the Tweed Bar?

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 21 Aug 2021 at 5:25pm

I'd assume so FR.
First load was just dropped at north Dbah just south of Boundary St.

freeride76's picture
freeride76's picture
freeride76 Saturday, 21 Aug 2021 at 6:13pm

bummer, that bank looked insane.
was hoping to get up and surf it.

Ben Harding's picture
Ben Harding's picture
Ben Harding Sunday, 22 Aug 2021 at 10:53am

Big effort coming from your end with borders now nearly airtight. Tweed Shire Council and the Aboriginal Land Council have closed Letitia road and beach to vehicles since I think April last year and it's extended four months since May 2021 or until the elections are over. You can still walk the road/beach or bike, but that's an effort: solid walk, solid paddle, solid surf, then solid walk again. I've done it once around March-ish to surf around the pump, as I didn't realise the road was still closed, probs wouldn't do it again. Can't park anywhere along the road, so Fingal head beach is the start point. Or launch a ski, but something tells me that's not your go.

Banks are looking pretty good along that stretch:

https://www.instagram.com/reel/CSOXNZ3pZQk/?utm_medium=copy_link

freeride76's picture
freeride76's picture
freeride76 Sunday, 22 Aug 2021 at 11:17am

Thanks Ben, I was thinking of parking up at Tweed somewhere near Twin Towns and paddling out the river on run out tide.
Anyway that's off the menu for now.

Ben Harding's picture
Ben Harding's picture
Ben Harding Sunday, 22 Aug 2021 at 11:28am

No worries. Good alternative, not much paddling involved with that option at all.

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 21 Aug 2021 at 10:05pm

They seem focused on just east of the north wall tonight . And so far it's all been dumped just offshore from the coast guard tower.

thermalben's picture
thermalben's picture
thermalben Sunday, 22 Aug 2021 at 7:00am

Good viewing from the Tweed Bar cam.

Spuddups's picture
Spuddups's picture
Spuddups Sunday, 22 Aug 2021 at 9:01am

I wonder how much the dredging affects Fingal.

Walk around G's picture
Walk around G's picture
Walk around G Sunday, 22 Aug 2021 at 9:42am

Can we borrow that dredger when you're done. There are soo many nearly there points and coves along the Great Ocean road that just need some sand pumped in to sort out the bottom contours.

tubeshooter's picture
tubeshooter's picture
tubeshooter Sunday, 22 Aug 2021 at 10:17pm

The crew is working the guts of the river mouth and south wall tonight.
So far all the sand has been dumped in the same area in front of the Coast Guard tower.

thermalben's picture
thermalben's picture
thermalben Monday, 23 Aug 2021 at 6:09am

Here's what it's done so far.

You can watch in real time here: https://www.marinetraffic.com/nl/ais/home/centerx:153.540/centery:-28.16...

wingnut2443's picture
wingnut2443's picture
wingnut2443 Monday, 23 Aug 2021 at 7:21am

Interesting tracks.

Notice it goes into D'Bah or Snapper on both those trips further North?

Also, anyone know what the track colour codes mean?

thermalben's picture
thermalben's picture
thermalben Monday, 23 Aug 2021 at 7:27am

I suspect colour is proportional to speed (red = stationary).

wingnut2443's picture
wingnut2443's picture
wingnut2443 Monday, 23 Aug 2021 at 11:10am

Yeah, had thought that too, but, if stationery, there'd be no movement, so no track ...

Maybe slow speed?

Or, operational. Dredging or dumping?

tubeshooter's picture
tubeshooter's picture
tubeshooter Monday, 23 Aug 2021 at 5:33pm

The link Ben mentions keeps the track marks for 24 hr periods whether the vessel is moving or not. The site also has information regarding if the vessel is either At anchor , Underway or Restricted in Maneuverability {dredging or discharging}. including current speed course etc

wally's picture
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wally Monday, 23 Aug 2021 at 11:54am

scrotina's picture
scrotina's picture
scrotina Monday, 23 Aug 2021 at 11:01am

hard to tell how the banks will work until we get some swell. i hope they dredged that bank wide of snapper where the last storm dumped sand. that caused waves to break up and lose power, then the inside sections along rainbow to greeny to be fat and weak.

thermalben's picture
thermalben's picture
thermalben Saturday, 28 Aug 2021 at 8:42am

Albatross sitting off North Kirra, viewed through our surfcam.

Nice workplace on a day like today! Wonder if he's got a line out.

Roystein's picture
Roystein's picture
Roystein Saturday, 28 Aug 2021 at 9:18am

This is one of the best threads on Swellnet at the moment. alongside the SEQLD/NNSW forecast comments.

tubeshooter's picture
tubeshooter's picture
tubeshooter Saturday, 28 Aug 2021 at 2:23pm

Just came across a recent clip of Parko surfing that outside bank that freeride76 mentioned. Given the transects the dredge has been conducting recently I'd say it's all over by now.

lilas's picture
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lilas Sunday, 29 Aug 2021 at 7:55am

Just wondering if anyone has any credible scientific evidence that the Tweed-Sand-Bypass/ dredging has ANY affect on beaches south of this system. Other than the immediate local vicinity I find it almost impossible to believe that there would be any affect south of this setup[tweed] as our long-shore drift sand-flow along the east coast is South-to-North. So how is it possible that this would have such an impact on beaches far south of tweed that are always replenished by beaches even further south of them. If you have shit banks in your local beach then my guess it's got 99% to do with the beaches south of you, NOT north of you.
Local sand banks can naturally shift over years and this has well documented long before any by-pass projects started.
There are also other coastal processes that can affect the formation of good sand-banks such as local rain, rivers, creeks, lakes, sand-dunes,sand drift, and traffic [beach 4wheel drives]. It's just way to simple and easy to try and put all the blame on one of man's interventions that hasn't even a tenuous connection to the result.
I think the bigger point everyone is missing is that we have a massive resource floating past our doorstep every day.[Sand = Land] Why are we jut letting all this sand flow up to Frazer island and clog up the reefs?
Reclaiming land along the coast seems entirely logical when you have the actual ingredients for land coming to your door.

There is approx 500,000 cubic meters moving from south to north every year and this could give us some valuable land along the coast to replant trees and help nature return. All it needs it to be stabilized which is easy with reefs to protect it. Reefs also have a massive benefit to the marine environment by increasing biodiversity greatly.
The Gold coast is already on reclaimed land due to the fact all the swamps were filled in with sand for housing, etc. So it's not a new idea whatsoever.
If only the Gov planners had some foresight to see we could enhance and protect our coastal environment with some intelligent thinking.
I know the environmental purists will disagree with what I am saying but to be honest I have no time for discussions with people at either end of the environmental spectrum as being extreme one way or the other never got humans anywhere.
Progress is not the enemy> Trying to keep things the same in an ever-changing world is
If we want to maintain the status quo then we have already failed, as no new ideas or improvements ever came from keeping things the same.

shraz's picture
shraz's picture
shraz Monday, 30 Aug 2021 at 5:52pm

'Just wondering if anyone has any credible scientific evidence that the Tweed-Sand-Bypass/ dredging has ANY affect on beaches south of this system.'

- why would anyone think it would? it's not about NSW beaches, it's just artificially unplugging the entrance so the fisho's get out safely and moving the sand north to the GC like nature intended.