Frost line depth in Macon County, MO

How deep the ground freezes in Macon County, MO

25 in. Dig to 25 in, just below the frost. Nearest NOAA station: Long Branch Rsvr, 6.3 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