The frost line in Ohio is 3ft
no Frost
no Frost
Up to July 2008 it was 4' per the NYC Code. I haven't dealt enough with the newly adopted code. I imagine it hasn't changed.
12 inches - I did a lot of house construction in the 60s Correction. Building codes have changed since the 60s. It is actually 36 inches.
The frost line in Cincinnati, Ohio is the depth at which the ground freezes during the winter. In Cincinnati, the frost line typically reaches a depth of around 30 to 36 inches. This is important to know for construction purposes, as structures must be built below the frost line to prevent damage from frost heave.
3ft
The frost depth refers to how deeply frost can penetrate into the ground. In Martinsville, Virginia, the frost depth is around 18 inches deep.
one metre
42 inches
42"
Frostline in Utah (not specifically for Box Elder County) is 30 inches deep. I assume that this is a typical statewide rule of thumb good for most locations but would not apply to very high elevations.