Frost line depth in Linn County, MO

How deep the ground freezes in Linn County, MO

27 in. Dig to 27 in, just below the frost. Nearest NOAA station: Chillicothe 22 Ene, 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