Frost line depth in Chugach Census Area, AK

How deep the ground freezes in Chugach Census Area, AK

12 in. Dig to 12 in, the 12 in code minimum. Nearest NOAA station: Cordova Wwtp, 14.8 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.

12 in minimum · Snow