The following are the maximum speeds on certain highways in Butte County:

1. (1) U.S. Highway 85 beginning one mile north of the junction with U.S. Highway 212 in Belle Fourche, then south for 0.75 mile, forty-five miles per hour; then south on U.S. Highway 85 to the south end of the Belle Fourche River bridge, thirty-five miles per hour; then south to Lawrence Street, twenty-five miles per hour; then south to the junction with State Trunk Highway 34, thirty-five miles per hour; then south to a point 0.6 mile south of the junction with State Trunk Highway 34, forty-five miles per hour;
2. (2) U.S. Highway 212 beginning 0.5 mile east of Birch Street in Nisland, then westerly for 0.8 mile, fifty miles per hour;
3. (3) State Trunk Highway 34 beginning 0.4 mile west of its junction with U.S. Highway 85, then east for 0.2 mile, fifty miles per hour; then east for 0.4 mile, forty miles per hour, then east for 0.2 mile, fifty miles per hour;
4. (4) U.S. Highway 212 beginning at the junction of State Trunk Highway 79 in Newell, then east to a point 0.05 mile east of Girard Avenue, thirty miles per hour; then east 0.20 mile, forty-five miles per hour;
5. (5) State Trunk Highway 79 beginning at the junction with U.S. Highway 212 in Newell, then north to Ninth Street, twenty-five miles per hour; then north for 0.20 mile, forty-five miles per hour;
6. (6) U.S. Highway 212 beginning at its north junction with State Trunk Highway 79 in Newell, then south to Ash Street, twenty-five miles per hour; then south to Hope Road, forty-five miles per hour; and
7. (7) U.S. Highway 212 beginning 0.4 mile west of its junction with U.S. Highway 85 in Belle Fourche, then east for 0.2 mile, forty-five miles per hour; then east for 0.2 mile, thirty-five miles per hour; then east for 0.3 mile, twenty-five miles per hour; then east for 0.2 mile, forty miles per hour.

Source: SL 1975, ch 16, § 1; 7 SDR 25, effective September 22, 1980; 10 SDR 52, effective November 30, 1983; 11 SDR 129, effective April 1, 1985; 13 SDR 129, 13 SDR 134, effective July 1, 1987; 14 SDR 176, effective July 3, 1988; 17 SDR 34, effective September 9, 1990; 21 SDR 13, effective July 31, 1994; 40 SDR 58, effective October 9, 2013 ; 44 SDR 95, effective December 5, 2017 ; 51 SDR 12, effective August 12, 2024 .

General Authority: SDCL 32-25-7 .

Law Implemented: SDCL 32-25-7 .

Prior versions effective: 2017-12-05, 2013-10-09.