Frost line depth in South Central Connecticut Planning Region, CT

How deep the ground freezes in South Central Connecticut Planning Region, CT

19 in. Dig to 19 in, just below the frost. Nearest NOAA station: New Haven Tweed Ap, 3.2 mi.

Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.

Code depth · Snow