Frost line depth in Oscoda County, MI

How deep the ground freezes in Oscoda County, MI

42 in. Dig to 42 in, just below the frost. Nearest NOAA station: Mio Hydro Plt, 1.8 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