Frost line depth in Hancock County, IA

How deep the ground freezes in Hancock County, IA

49 in. Dig to 49 in, just below the frost. Nearest NOAA station: Britt 3e, 2.1 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