How far do pier pilings go down in the ground at the end?

Question

I was out on a pier the other day at the end of it and I was wondering how far the poles go in the ground at the end? I know it has to be far...anyone know?

Answer 1

Depends on the soil composition, load on the pilings, and many other factors.. But the other day i was at panama city beach in fla. and they were driving pilings for a pier and they were marked as going down 22'.