Frost line depth in Crenshaw County, AL

How deep the ground freezes in Crenshaw County, AL

6 in. Dig to 12 in, the 12 in code minimum. Nearest NOAA station: Highland Home, 11.2 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.