Yurt platform post holes

[carbonebria]

Hi all,

I just kicked off construction this past weekend on a 25'

yurt platform

in Rochester, VT!

The location is on a piece of land that is about 1200 feet in elevation with a fairly steady pitch to it (~25 degrees). This weekend we marked off all of the post holes (which in this case there are 20 as I am following a Pacific

Yurt platform

design which calls for laying 2x6 tongue and groove directly onto the beams and avoids any joists).

For about 4 of the post holes, there was a significant amount of water coming in (on in particular had water almost to the top of the hole), but strangely enough 5 feet in a different direction the post holes did not fill up with any water at all.

My plans is to go down 48 inches with 8 inch sono tubes. Has anyone run into similar issues with water coming into post holes?

Does anyone have any recommended solutions for this so that when adding concrete, the cement with cure appropriately and not wash away by the water?

Thanks!
Brian