Webfootings below the frost line shall not be required for the following.
Footings shall be placed a minimum of 12 below the undisturbed ground surface per rco 403. 1. 4.
Webthe standard frost depth for obc governed construction shall be 32 inches (813 mm).
Webfrost lines vary by latitude and are deeper closer to the poles.
According to the federal highway administration, the maximum frost depth ranges between zero to eight feet in.
Webthe standard frost depth for obc governed construction shall be 32 inches (813 mm).
Exterior footings shall be placed not less than 12 inches (305 mm) below the undisturbed ground surface.
Where applicable, the depth of footings shall also conform to sections 403. 1. 4. 1.