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

1. (1) U.S. Highway 12 beginning one mile west of the junction of U.S. Highway 12 and State Trunk Highway 45, then east for 0.5 mile, forty-five miles per hour; then east for 0.9 mile, thirty miles per hour; then east for 0.2 mile, forty-five miles per hour;
2. (2) U.S. Highway 12 beginning 0.3 mile east of 341st Avenue, then west for 0.5 mile, fifty miles per hour; then west for 0.4 mile, thirty miles per hour; then west for 0.2 mile, fifty miles per hour;
3. (3) State Trunk Highway 45 in Ipswich beginning at the junction of U.S. Highway 12 and State Trunk Highway 45, then south 0.6 mile, thirty miles per hour; then south for 0.2 mile, forty miles per hour;
4. (4) State Trunk Highway 247 in Roscoe beginning at the junction of U.S. Highway 12 and State Trunk Highway 247, then north 0.5 mile, twenty-five miles per hour; then north 0.2 mile, forty-five miles per hour; then north to the McPherson-Edmunds county line, fifty-five miles per hour;
5. (5) U.S. Highway 12 through Bowdle beginning 0.4 mile west of the beginning of the divided section, then east for 2.2 miles, fifty-five miles per hour; and
6. (6) State Trunk Highway 253 beginning nine miles north of the junction with U.S Highway 12, then west 0.2 mile, forty-five miles per hour; then west 0.7 mile through Hosmer, twenty-five miles per hour; then west 0.2 mile, forty-five miles per hour.

Source: SL 1975, ch 16, § 1; 8 SDR 2, effective July 19, 1981; 8 SDR 89, effective January 24, 1982; 11 SDR 73, effective November 29, 1984; 13 SDR 129, 13 SDR 134, effective July 1, 1987; 14 SDR 176, effective July 3, 1988; 22 SDR 165, effective June 2, 1996; 23 SDR 132, effective February 27, 1997; 34 SDR 279, effective May 8, 2008; 42 SDR 109, effective February 8, 2016 ; 48 SDR 104, effective April 25, 2022; 52 SDR 55, effective December 2, 2025 .

General Authority: SDCL 32-25-7 .

Law Implemented: SDCL 32-25-7 .

Prior versions effective: 2022-04-25, 2016-02-08, 2008-05-08.