Frost line depth in Lake and Peninsula Borough, AK

How deep the ground freezes in Lake and Peninsula Borough, AK

59 in. Dig to 59 in, just below the frost. Nearest NOAA station: King Salmon 42 Se, 19.2 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.

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