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

1. (1) State Trunk Highway 50 beginning at the Yankton County line, then southeast to a point 0.15 mile northwest of the intersection with Wakonda Road, 70 miles per hour; then southeast 0.3 mile through Meckling, 55 miles per hour; then southeast to the junction with State Trunk Highway 50 Business Route west of Vermillion, 70 miles per hour;
2. (2) State Trunk Highway 50 Business Route through Vermillion beginning at its off ramp intersection with State Trunk Highway 50 at milepost 406.7, then south and east to a point 0.4 mile west of the junction with State Trunk Highway 19, 55 miles per hour; then east for 0.3 mile, 45 miles per hour; then east 0.95 mile to Cottage Avenue, 35 miles per hour; then east for approximately 0.64 mile to Plum Street, 25 miles per hour; then east for approximately 0.77 mile to Crawford Road, 35 miles per hour; then east 0.14 mile, 45 miles per hour;
3. (3) State Trunk Highway 46 beginning at the west Clay County line, then east 0.45 mile through Irene, 25 miles per hour; then east 0.2 mile, 40 miles per hour;
4. (4) State Trunk Highway 50 beginning at the junction with State Trunk Highway 50 Business Route west of Vermillion, then east for approximately 2.31 miles to a point 0.2 mile west of the junction of State Trunk Highway 19, 65 miles per hour; then east-southeasterly for approximately 2.10 miles to a point 0.14 mile west of the intersection with Crawford Road, 50 miles per hour; then south and east for 0.95 mile on the ramp over State Trunk Highway 50 Business Route, 45 miles per hour; then east on State Trunk Highway 50 for 0.21 mile, 55 miles per hour; then east to the Union County line, 70 miles per hour;
5. (5) State Trunk Highway 19 beginning at the junction with State Trunk Highway 50 Business Loop in Vermillion, then north for 0.48 mile to the junction with State Trunk Highway 50, 45 miles per hour.

Source: SL 1975, ch 16, § 1; 3 SDR 62, effective March 15, 1977; 12 SDR 7, effective July 28, 1985; 13 SDR 129, 13 SDR 134, effective July 1, 1987; 22 SDR 165, effective June 2, 1996; 25 SDR 83, effective December 20, 1998; 26 SDR 110, effective March 6, 2000; 32 SDR 53, effective October 10, 2005; 32 SDR 109, effective December 26, 2005; 44 SDR 95, effective December 5, 2017.

General Authority: SDCL 32-25-7 , 32-25-7.1.

Law Implemented: SDCL 32-25-7 , 32-25-7.1.

Prior versions effective: 2005-12-26.