N.D. Cent. Code § 24-05-21: Roads and approaches intersecting with county or township roads - Requirement

All roads and approaches constructed after July 1, 1973, which intersect with county or township roads, must have a graded inslope at the place of intersection of at least a three-to-one ratio, thus permitting vehicles which may accidentally leave any county or township road and strike the inslope a reasonably safe access over the road or approach.