Building a Jetty

[deblen]

There is another method,if you prefer labour vs material cost & have easy access to football size rock or bricks.
It is the rock filled cribwork.
In ur case,for a dinghy dock,in very shallow water,you would build a 4ft sq crib out of 6 " logs(cheap) or 6"treated square stock,as used for retaining walls,gardens,etc. Assemble the square like a log cabin,only with gaps.(see pic of large wharf),with a plank deck,sitting on the bottom layer of logs.
Float/drag this crib offshore.Add a foot or two of rock/brick.Build a plank deck/walk to span from shore to crib.
You can add additional support under a long walk with posts with cross shoe sitting on hard bottom,if reqd.
You can add "vertical fender boards" from edge of walk & driven in bottom a bit,etc,if reqd.
Our old family fishing wharf was built from spruce & rock in 1920,s & still stands today.

[dohenyboy]

Greyheart wood lasts a long time.


Sent from an undisclosed location on the high seas or from the lounge chair by the pool, you decide.

[deblen]

https://www.youtube.com/watch?v=u3LtEF9WPt4

Fundy tides-55ft near Halls Harbour,NS-every 6hr 15min

Some entertainment.Free haulouts.

[jongleur]

CCA leaches toxins into the water, as
would most other treatments. Not
good for those swans in your picture. Salt
water is already a preservative for wood.

I vote for a shore attached floating dock
with stays. Why have anything in the
water at all?