Frost line depth in Miami County, IN

How deep the ground freezes in Miami County, IN

28 in. Dig to 29 in, just below the frost. Nearest NOAA station: Wabash, 11.5 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.