Frost line depth in Buena Vista County, IA

How deep the ground freezes in Buena Vista County, IA

44 in. Dig to 44 in, just below the frost. Nearest NOAA station: Storm Lake, 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