Frost line depth in Clark County, IN

How deep the ground freezes in Clark County, IN

16 in. Dig to 17 in, just below the frost. Nearest NOAA station: Louisville Mcalpine, 14.4 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.