31-7-7. Grade separations at intersections with other roads.
The department may construct grade separations at intersections with other public roads and to adjust the lines and grades of such other roads so as to accommodate the design of toll-free roads of the national system of interstate highways.
Source: SL 1955, ch 104, §3; SDC Supp 1960, §28.0233 (4); SL 2010, ch 145, §54.