Categories

How close to Water table can I pour a footing

Question Icon
Posted by: from West Montrose
5/4/2011 at 1:03:28 PM

HI,

I am proposing to build a house on a plot of land. I dug a test hole 46 inch deep and water level rose to about 36 inches in 15 minutes. (FYI this is the wettest April in 30 years and the test holes was dug after 3 days of modest rainfall.) The lots on either side limit me form raising the house up to much.

My question is, can I have the bottom of my footing at the 36 inch mark (top of water level)? Obvously I will need foundation drains and sump pump.

Also, in this case (because of wet spring) would you ever go slightly below water level (ie 6")

I look forward to professional responses. Thank you in advance.

Regards,

Don.

REPLIES (1)
User Icon
Dave in Oshawa
Date/Time5/18/2011 at 1:38:34 PM

Hi Don,

You have a problem site. You can't guess at this or you'll be in trouble once the house is built. So it's a wet spring? What happens when the house is there and it's another wet spring? Do yourself a favour and get an engineer to help you design the foundations to match site conditions...and don't cheap out. I'm not sure what the frost depth is where you are building, but 36" would be very problematic for most areas in Canada without engineered footings. You can pour footings underwater and they will cure, although the concrete will lose compressive strength and it does nothing for the high water table on site. You should also be talking to your municipal building official. He might be able to offer some guidance. At the end of the day, if he isn't happy with your solution, you won't pass the inspection and you won't be able to continue building.

Hope that helps! Good luck with it.

~ Dave

Search the TrustedPros directory and discover the best contractors in your area.

Find your home service pro
Great renovations start with a great contractor.

Since 2004, TrustedPros has been helping homeowners find the right contractor for their home improvements and repairs.

Post Your Project

Within hours you'll be comparing offers from top-rated professionals. It's free to post and you're under no obligation to hire.

 
Trustedpros Inc. does not warrant the accuracy, completeness, safety, legality or usefulness of any Content, or Whether Content is Current and up-to-date, and TrustedPros Inc. Shall have no liability whatsoever with respect to your use or reliance upon any content or for content being removed or otherwise ceasing to be available. Please refer to the terms and conditions of use of this websites for more details.
Categories

It appears you may be located in the US

TrustedPros is designed to deliver results targeted to your location.

Get Free Estimates

Post your project and compare offers from top-rated pros.


x