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help on pilings install
hi all,
i'm gearing up for my summer project.. putting two pilings in front of my seawall (technically its on a canal of a lake). 1) my seawall is approx. 25ft long. my boat is approx. 21 feet long. what is the typical spacing of the two pilings between such a setup? i was thinking at foot marker 2 and foot marker 22 (20ft between pilings). but what happens if I get a smaller boat, like a 17ft.? i want it to work for a 21ft and a 17ft... since the 17ft would be lighter, the extra distance on each side might not be an issue? 2) my 21 foot boat net weight is 2900lbs. i've talked to local dock guys and they say 2500-3000 is about the max. i would want to go with pilings sunk 10feet into the ground.. so it got me thinking.. WHAT IF.. after I sink the pilings 10ft, I block off about 2 feet around each piling, suck the water out so it's just dirt/piling, and then lay a think ring of concrete around each piling, for stability? my logic is that the dock man said the problem i face with a 2900lb boat is that the piling may lean/eventually come out of place because of the nature of pilings and how davits extend from them, etc.. so i was thinking concrete would be a good extra layer of support.. then i would just cover the concrete with dirt on top of it so no one would even notice it.. what do you guys think? 3) i was thinking 10ft deep, 8 feet above ground, 18ft total for each piling.. is 8ft overkill? should i just do 6? my seawall is only 2ft above water line.. 4) i was either going to buy a fitting for my hose and like a 5ft long pvc pipe to sink the piling, or use my 2800 psi pressure washer. can anyone recommend me either way? thanks, kyle |
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