31-4-4. Relocations, additions, and alterations in system--Purposes.No change may be made in the state trunk highway system, except that the transportation commission may make relocations, additions, and alterations in portions of the system it considers necessary for the purpose of bringing into and connecting the system with all presently unconnected first and second class municipalities having a population of more than four hundred fifty according to the last federal census and for shortening the system distances between the interconnected county seats and connected municipalities of four hundred fifty or more population. The commission may also make relocations, additions, and alterations which make continuous the route of any state trunk highway through any municipality of over twenty-five hundred population or to improve the highway grade, or to eliminate a railroad crossing or crossings, or to avoid heavy city street traffic, or to construct a bypass around or alternate route through a municipality, with the consent of the governing body of such municipality affected and with a limitation of a maximum of five miles in length on each addition. ass around or alternate route through a municipality, with the consent of the governing body of such municipality affected and with a limitation of a maximum of five miles in length on each addition. Source: SL 1919, ch 333, §46; SL 1923, ch 284, §3; SDC 1939, §28.0210; SL 1939, ch 107, §2; SL 1957, ch 123; SL 1964, ch 94; SL 1968, ch 124; SL 1984, ch 209, §1.
South Dakota Legal Code