Frost line depth in Box Elder County, UT

How deep the ground freezes in Box Elder County, UT

31 in. Dig to 32 in, just below the frost. Nearest NOAA station: Rosette, 22.7 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 · Method