Frost line depth in Eddy County, ND
How deep the ground freezes in Eddy County, ND
67 in. Dig to 67 in, just below the frost. Nearest NOAA station: Mc Henry 3w, 15.5 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.