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Old 11-09-2006, 09:15 AM
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jdm
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Default Worms eating pilings

How far below the canal floor in a saltwater canal near the Gulf of Mexico in Florida will worms damage unwrapped wood marine pilings?
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Old 11-09-2006, 09:26 AM
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Default RE: Worms eating pilings

Thats a good question??? Doc of the Bay
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Old 11-09-2006, 09:28 AM
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Default RE: Worms eating pilings

Quote:
jdm - 11/9/2006 9:15 AM

How far below the canal floor in a saltwater canal near the Gulf of Mexico in Florida will worms damage unwrapped wood marine pilings?
I don't remember what "code" is, but I don't think they (worms) do too well much below the bottom surface. By the time a worm does much damage down there, his brothers, sisters, aunts, and uncles will have aready done ate what's above the floor...
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Old 11-09-2006, 09:49 AM
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Default Re: Worms eating pilings

Pulled a pile yesterday as a result of my neighbor being a "D..K". Been there 14 years, never had a variance, or knew I needed one, he complained, had to remove the Mooring Pile.

Plie was 14 years old, on the intercostal, strong current, full sun, no pile wrap. Looked great. Below the bay floor portion was "petrified in appearance with no signs of decay". Contractor told me they become stronger than the above the water line portion, as the pressure from the earth, compresses the pile. His theory looked correct as it was a bit tapered.

Hope that helped.
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Old 11-09-2006, 09:53 AM
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Default Re: Worms eating pilings

Quote:
Dsaltydog - 11/9/2006 9:49 AM
His theory looked correct as it was a bit tapered.

Hope that helped.
Well, okay... But keep in mind (at least here) they put them in that way (thinner end first).
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Old 11-09-2006, 09:58 AM
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Default Re: Worms eating pilings

I recalled, yet another instance. When digging my pool, the dead men piles that tied the sea wall back were in the center of the pool. Yes needed to do batter piles in replacement of the dead men for the sea wall. They were also just perfect. The contractor needed to cut them off, as opposed to removing them, and he burned up a few chain saw blades. The wood was very dense, from 40 years or so of being below grade.
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Old 11-09-2006, 10:00 AM
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I understand that wood pilings in areas of strong current don't have as much of a problem with worms as those in calm backwater canal locations. I plan to have vinyl wrap covering all the exposed wood surfaces in the water column. I'll probably have the wrap extend above the high waterline by about 12". I don't know how deep to go with the wrap into the canal bottom to be fully protected. The bottom is a mix of sand and silt/muck.
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Old 11-09-2006, 10:03 AM
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Default Re: Worms eating pilings

The link is the product you are looking for

http://www.marinepiles.com/index.html
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Old 11-09-2006, 10:06 AM
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Default RE: Worms eating pilings

Quote:
jdm - 11/9/2006 9:15 AM

How far below the canal floor in a saltwater canal near the Gulf of Mexico in Florida will worms damage unwrapped wood marine pilings?
In FL I observed Barnacles/teredos/oysters eat piles 1.25 - 1.5' feet from high tide and about 3' to 5' below normal high tide, with pile in sunlight. Our tides are generally 3.5' with extra high being 4.75'

Piles in shade do not deteriorate as rapidly. wrapping gets them.

Wrapped piles do not get barnacles, etc.

I hope I added value.
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Old 11-09-2006, 10:06 AM
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its the lack of oxygen
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Old 11-09-2006, 11:39 AM
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Default Re: Worms eating pilings

Quote:
Afishinado - 11/9/2006 9:53 AM
Quote:
Dsaltydog - 11/9/2006 9:49 AM His theory looked correct as it was a bit tapered. Hope that helped.
Well, okay... But keep in mind (at least here) they put them in that way (thinner end first).
Piles do not have the same diameter from the top to the bottom. Yes, the smaller end usually goes in the sand/mud and the larger end is above the water.

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Old 11-09-2006, 11:56 AM
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Default Re: Worms eating pilings

My recollection is that on pilings, it the area that gets exposed to during tidal shifts that is most prone to worm damage, and to keep the plastic covering from shifting/floating, they wrap them a bit under the mud line.

My dock was replaced in 1993, in 2003 I had a lift put in, they inspected the current pilings, and found no problems or concerns--they were wrapped when the were first installed. There are a few docks in my canal that have the concrete bases on them (probably put on after the pilings showed some damage). I stay away from them. Don't let my kids on them, advise friends/family not to stand on them when visiting. Neighbors do not seem to care or have any urgency to fix it. Too bad, someone's going to get hurt.
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Old 11-09-2006, 01:07 PM
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Default Re: Worms eating pilings

Quote:
Afishinado - 11/9/2006 9:53 AM

Quote:
Dsaltydog - 11/9/2006 9:49 AM
His theory looked correct as it was a bit tapered.

Hope that helped.
Well, okay... But keep in mind (at least here) they put them in that way (thinner end first).
This is the correct way to put them in against the seawall or bulkhead. However, along a dock in a freezing climate, most flip them to be the smaller end first. This helps with the ice.
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Old 11-09-2006, 03:20 PM
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Default Re: Worms eating pilings

How far below the canal bottom do anaerobic "critters" live, and do any of them bore into or eat marine pilings?

(anaerobic (an-uh-roh-bik, an-air-oh-bik)

... a living thing that can survive only in the absence of oxygen. (Compare aerobic.)
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Old 11-09-2006, 07:54 PM
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Default Re: Worms eating pilings

If pilings are installed properly, the large end or butt will be installed down.
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Old 11-09-2006, 10:06 PM
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Default RE: Worms eating pilings

Quote:
jdm - 11/9/2006 9:15 AM

How far below the canal floor in a saltwater canal near the Gulf of Mexico in Florida will worms damage unwrapped wood marine pilings?
Worms are aerobic and need oxygen. There is no oxygen deeper than a few inches below the surface of the sediment. If you wrap 6" below the bottom you will not have any shipworm damage. That is what I did.
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Old 11-21-2006, 02:43 PM
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Default Re: Worms eating pilings

Thanks for all the feedback. Is there anything else besides worms that will eat or damage unprotected marine piling surfaces?
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Old 11-21-2006, 03:10 PM
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Default Re: Worms eating pilings

Quote:
jdm - 11/21/2006 2:43 PM

Thanks for all the feedback. Is there anything else besides worms that will eat or damage unprotected marine piling surfaces?
Just rot.
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Old 11-21-2006, 04:28 PM
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Default Re: Worms eating pilings

Quote:
Dsaltydog - 11/9/2006 9:49 AM

Pulled a pile yesterday as a result of my neighbor being a "D..K". Been there 14 years, never had a variance, or knew I needed one, he complained, had to remove the Mooring Pile.

Plie was 14 years old, on the intercostal, strong current, full sun, no pile wrap. Looked great. Below the bay floor portion was "petrified in appearance with no signs of decay". Contractor told me they become stronger than the above the water line portion, as the pressure from the earth, compresses the pile. His theory looked correct as it was a bit tapered.

Hope that helped.

I had the same neighbor problem but the reverse of yours salty.. I asked him if
he could move a piling 1 foot over because the barge that lifts my boat out of the water every winter could not fit in.....I told him I would obviously pay to move the pole and it made no real difference to his property because he never used the pole in 10 years I was living there...he wouldn't do it. a real d..k.
thankfully he has since moved. And to boot I used to help this guy all the time..in fact he built his fingerdock in my backyard because he didnt have the room....then he stiffs me....people are strange. P.S> the reason I was one foot off was I built my fingerdock a foot to wide (my fault)..and the barge could no longer fit in)......oh well.
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