70:01:02:62Union County.

The following are the maximum speeds on certain highways in Union County: (1) Interstate Highway 29 Business Loop beginning 0.1 mile south of the centerline of Interstate Highway 29 at Exit 15, then northwesterly for 1.3 miles, thirty-five miles per hour; then northwesterly through Elk Point for 0.9 mile, twenty-five miles per hour; then northwesterly for 0.6 mile, thirty-five miles per hour; (2) State Trunk Highway 11 beginning 0.2 mile north of the intersection with Union County Highway 13, then north 0.3 mile, forty-five miles per hour; then north 0.6 mile, thirty miles per hour; then north 0.3 mile, forty-five miles per hour; (3) The port of entry bypass road 0.2 mile north of the beginning of this road at northbound Interstate 29 mileage reference marker 12.77, then northwesterly for 0.9 mile, thirty-five miles per hour; and the port of entry weigh station road beginning at its south connection with the port of entry bypass road, then northwesterly for 0.4 mile, fifteen miles per hour; (4) The crossroad over Interstate Highway 29 at Exit 38 beginning at a point 0.2 mile west of the centerline of Interstate Highway 29, then east 0.4 mile, thirty miles per hour; (5) State Trunk Highway 11 beginning at its intersection with Franklin Street in Elk Point, then northwesterly 0.1 mile, twenty-five miles per hour; then northwesterly and north 0.4 mile, forty miles per hour; (6) State Trunk Highway 50 beginning at the Clay County line, then east to a point 0.6 mile west of the centerline of Interstate 29, seventy miles per hour; then east for 0.2 mile, sixty miles per hour; then east-southeasterly for one mile, forty-five miles per hour; (7) The underpass under Interstate Highway 29 at Exit 2 beginning at a point two hundred feet west of the west ramps of Interstate 29, then easterly eight hundred feet, thirty miles per hour; (8) The crossroad at a point 0.1 mile west of the west ramps of Interstate 29 at Exit 9, then easterly 0.3 mile, forty-five miles per hour; (9) The crossroad over Interstate 29 at Exit 1 beginning on Sioux Point Road at its intersection with Courtyard Drive, then northwesterly to the intersection with Dakota Dunes Boulevard, then northeasterly on Dakota Dunes Boulevard to the intersection with Cottonwood Lane and Stevens Port Drive, thirty-five miles per hour; (10) State Highway 29P beginning at its northwest limits where it connects with Northshore Drive, then southeasterly to its intersection with Streeter Drive, twenty-five miles per hour, then east to the east limits of State Highway 29P at its intersection with Union County Highway 1B (also known as Old Highway 105), thirty-five miles per hour; and (11) State Trunk Highway 46 beginning 0.5 mile west of the centerline of Interstate Highway 29, then east for 0.3 mile, forty-five miles per hour; then east for 0.7 mile, thirty-five miles per hour; then east for one mile through Beresford to East 13th Street (also known as 472nd Avenue), thirty miles per hour; then east for 0.3 mile, forty-five miles per hour.

Source: SL 1975, ch 16, § 1; 2 SDR 71, effective May 1, 1976; 2 SDR 86, effective June 24, 1976; 3 SDR 10, effective August 11, 1976; 4 SDR 26, effective October 31, 1977; 5 SDR 91, effective April 29, 1979; 7 SDR 89, effective March 30, 1981; 8 SDR 89, effective January 24, 1982; 9 SDR 132, effective April 24, 1983; 13 SDR 52, effective November 6, 1986; 13 SDR 129, 13 SDR 134, effective July 1, 1987; 15 SDR 158, effective April 26, 1989; 17 SDR 12, effective July 30, 1990; 17 SDR 127, effective March 3, 1991; 20 SDR 96, effective December 29, 1993; 22 SDR 165, effective June 2, 1996; 28 SDR 24, effective August 29, 2001; 31 SDR 165, effective May 11, 2005; 32 SDR 53, effective October 10, 2005; 37 SDR 18, effective August 16, 2010; 50 SDR 42, effective October 11, 2023; 53 SDR 34, effective September 29, 2026.