Frost line depth in Lac qui Parle County, MN

How deep the ground freezes in Lac qui Parle County, MN

55 in. Dig to 56 in, just below the frost. Nearest NOAA station: Madison Wwtp, 0.6 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