Frost line depth in Washington County, CO

How deep the ground freezes in Washington County, CO

28 in. Dig to 29 in, just below the frost. Nearest NOAA station: Akron 4 E, 13.6 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