Frost line depth in Newport News city, VA

How deep the ground freezes in Newport News city, VA

11 in. Dig to 12 in, the 12 in code minimum. Nearest NOAA station: Newport News Intl Ap, 4.2 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.