Expert: Dan Griffin - 6/15/2009

Question
WHAT WOULD YOU/ HOW WOULD YOU RECOMMEND THIS TO BE DONE.  PRODECT IS LOCATED ON LONG ISLANDS NORTHSHORE AND PLANS CALL FOR HELICAL FOUNDATION SYSTEM. ANY HELP OR INFO YOU CAN PROVIDE WILL BE SO APPRECIATED.  THANK U DAN...  ATHENA
MY CONTACT INFO:
Athena Vargo
Project Manager
Reisiger Renovations, Inc.
P.O. Box 1324
Bayville NY 11709
Tel/Fax {same}: (516) 922-4231
EMAIL:
www.reisigerrenovations.com  

Answer
Athena,

Look in your yellow pages under foundations or pier drilling.

Cased piers are used where there are groundwater conditions.  They are expensive.  Dubai is built on supercompacted sand piers.  Many coastal installations are installed on driven pilings of concrete or wood.

My use of the term helical piers refer to  screwed in augers driven to remission and fastened to existing footings.  There are several patented systems.

http://www.ramjack.com/index.php

here are many articles on helical and other piers
http://www.helicalpierworld.com/

This sounds like you are dealing with an existing building that has some settlement issues or they are planning on adding another floor or substantial additional load on the footing.  These retrofit systems are meant to be minimally invasive.