Frost line depth in Yukon-Koyukuk Census Area, AK

How deep the ground freezes in Yukon-Koyukuk Census Area, AK

101 in. Dig to 102 in, just below the frost. Nearest NOAA station: Tanana Calhoun Mem Ap, 20.7 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