Frost line depth in Palo Alto County, IA

How deep the ground freezes in Palo Alto County, IA

45 in. Dig to 45 in, just below the frost. Nearest NOAA station: Emmetsburg, 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