https://en.wikipedia.org/wiki/Frost_line

The frost line—also known as frost depth or freezing depth—is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth ...

http://answers.angieslist.com/What-frost-line-relevance-building-digging-q140614.aspx

... a foundation for a structure and what does the frost line have to do with it? ... and porch/deck footing depth typically is on a deck construction ...

https://www.decks.com/how-to/264/deck-footing-frost-depth-map

When excavating your deck footings, you'll need to dig below the frost line. Find out how deep the frost line is in your area with our frost depth map at Decks.com.

https://www.weather.gov/ncrfc/LMI_FrostDepthMap

Frost depth reports here are commonly from frost tube instruments, visual reports from construction or cemetery sites, or other types of electronic probes. Frost ...

https://www.hammerpedia.com/frost-line-map/

The frost line is simply the deepest point in the ground to which ground water will ... This resulted frost heave can be detrimental to footings and foundations.

https://www.completedesign.cc/client-resources/dictionary-of-construction-terminology/341-frost-line

Frost line - The depth of frost penetration in soil and/or the depth at which the earth will freeze and swell. This depth varies in different...

https://www.engineeringexpress.com/wiki/frost-protection-concrete-footings-grade/

Jan 3, 2017 ... The frost line can extend anywhere from 5 inches to 6 feet below grade in ... The design standard specifies foundation construction to protect ...

https://www.ghi.coop/content/what-depth-frost-line-prince-georges-county

Mar 23, 2011 ... Exception: Frost-protected footings constructed in accordance with Section R- 403.3 and footings and foundations erected on solid rock shall ...

https://northernconcreteinc.com/how-does-ground-frost-affect-concrete/

Feb 17, 2014 ... Digging a hole to the point where your soil is below the frost line and still unfrozen is challenging enough, but you must also keep the soil from ...

https://www.youtube.com/watch?v=9jzycX380PA

Sep 12, 2010 ... http://woodgears.ca/cottage/foundation.html Explaining how cyclic frost heaving can permanently displace a concrete foundation.