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Re: augered piles

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A Sidebar on this question concerning IBC and piles.

"Section 1802.2.4 Pile and pier foundations.  Pile and pier foundations shall be designed and installed on the basis of a foundation investigation and report as specified in Sections 1802.4 through 1802.6 and Section 1807.2.1."

This seems to require a soil report for all Pile and pier foundations

Now Sections 1802.4 through 1802.6  state what is to be included in the report

However here is the tricky part Section 1807.2.1
1807.2 Piers and piles - general requirements

1807.2.1 General.  Pier and pile foundations shall be designed and installed on the basis of a foundation investigation as defined in Section 1802, unless sufficient data upon which to base the design and installation is available.

This seems to state that if it is felt that other information is available then a foundation investigation is not needed, any ideas on the contradictions here?  We wouldn't do such a design without a report but it is always easier to get the owner to pay if you can say the code requires it. 

-Bill King, PE