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Re: NEW - Boca Del Rio beach [Re: Glorias] #417902
10/05/11 08:57 PM
10/05/11 08:57 PM
Joined: Oct 2001
Posts: 6,245
San Pedro AC Belize
Diane Campbell Offline
.
Diane Campbell  Offline
No the folks in Placencia did something very well studied and ecological - I think they used logs actually. It was a really cool thing. I guess my point is that the groins tend to work, but you might need a permit to keep one. I've seen some subtle ones in play along the shore here - boulders under piers ....... they attract fish, hold sand, and are not "construction" in a way that excites people into court.
Indeed the beach on either side of the groyne grew - one more significantly than the other, but both benefitted.

Re: NEW - Boca Del Rio beach [Re: Glorias] #417904
10/05/11 09:03 PM
10/05/11 09:03 PM
Joined: May 2011
Posts: 1,520
PACWest, SACSouth
Bear Offline
.
Bear  Offline
Whoa...wow G & D this is very cool stuff, I have some research to do...

Re: NEW - Boca Del Rio beach [Re: Diane Campbell] #417927
10/06/11 08:11 AM
10/06/11 08:11 AM
Joined: Jul 2009
Posts: 13
G
Glorias Offline OP
.
Glorias  Offline OP
G
Originally Posted by Diane Campbell
No the folks in Placencia did something very well studied and ecological - I think they used logs actually. It was a really cool thing. I guess my point is that the groins tend to work, but you might need a permit to keep one. I've seen some subtle ones in play along the shore here - boulders under piers ....... they attract fish, hold sand, and are not "construction" in a way that excites people into court.
Indeed the beach on either side of the groyne grew - one more significantly than the other, but both benefitted.


Diane,
I just realized I didn't completely explain the system yesterday. The sacks of cement/sand set up and get hard but because they are less than a foot above the water level when they are set in place when the rough seas go over the wall with the suspended sand it settles down because of the wall and the sand is deposited. BUT the most interesting thing is that it also covers the wall completely so it is not visible. It even raises the level of the sand 10 feet or so on the sea side so it is a gradual slope. And It stays that way even in future rough seas. Of course as I explained you can then add more height to the wall up to a point and keep going higher. It will only go so high depending on the physical situation of the location.

I found a few great photos that will show without a doubt this works but I don't know how to put them on the form. Tell me how to put them on or give me your email and I'll send them to you.




Re: NEW - Boca Del Rio beach [Re: Glorias] #417947
10/06/11 09:38 AM
10/06/11 09:38 AM
Joined: Oct 2001
Posts: 6,245
San Pedro AC Belize
Diane Campbell Offline
.
Diane Campbell  Offline
I'm curious as to the maximum heights and other limiting factors for the sytem you describe because it does not have the porosity to allow water to seep back into the sea after washing over it. This factor what eventually causes all the sea walls around here to fail sooner or later.
The beauty of the geo-tube is that it's just sand in a very strong porous bag. The water seeps through it - sand is left behind, but the water goes back to the sea. The stones under the piers have a similar property although they are not as stable because a big storm can move them around if they are not contained.

Anyway - sounds like my groyne story and your cement bag story are about two different systems - each having an application in various settings. All valuable info and yes I'd be very interested in seeing the info you have. I'll PM you with an address to send.

As Bucky Fuller said ...... "You can only learn more - it is impossible to learn less!".

Re: NEW - Boca Del Rio beach [Re: Glorias] #417948
10/06/11 09:40 AM
10/06/11 09:40 AM
Joined: Oct 2001
Posts: 6,245
San Pedro AC Belize
Diane Campbell Offline
.
Diane Campbell  Offline
One last caveat to all reading this ....... the seabed is the property of GoB. You need a permit to install stuff on it.

Re: NEW - Boca Del Rio beach [Re: Diane Campbell] #418327
10/10/11 08:53 AM
10/10/11 08:53 AM
Joined: Jul 2009
Posts: 13
G
Glorias Offline OP
.
Glorias  Offline OP
G
Dianne,
I'm working on posting the photos. I would like the others that have an interest to see them too. It may take a day or so because I'm busy but am making progress.

I believe this is a very important system for building beach front at little cost and with no damage to the ecology. I feel sure that once GOB understands this they will embrace it with open arms.

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