Frost line depth in Western Connecticut Planning Region, CT

How deep the ground freezes in Western Connecticut Planning Region, CT

26 in. Dig to 26 in, just below the frost. Nearest NOAA station: Danbury Muni Ap, 6.7 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