Upon the day set for such visit to such land for the purpose of laying out such right - of - way and appraising the damages to the owner of the surrounding land therefor, the county commissioners shall proceed to the place named, shall lay out a right - of - way not less than twenty - five nor more than sixty - five feet in width from such isolated tract of land across surrounding lands to a public highway, and in so doing shall consider the convenience of the parties. Wherever it is practicable to do so, such board shall lay such right - of - way along a section line or the line of a government fractional subdivision of a section. Source: SL 1935, ch 179 , § 3; SDC 1939, § 28.0803; SL 1977, ch 243 .