South Dakota Administrative Rules
Title 70 - Department of Transportation
Article 70:01 - Administration - Highway Safety Signs and Notices
Chapter 70:01:02 - Speed limits
Section 70:01:02:62 - 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 1.28 miles, thirty-five miles per hour; then northwesterly through Elk Point for 0.94 mile, twenty-five miles per hour; then northwesterly for 0.61 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 Elk Point Port of Entry by-pass beginning 0.36 mile north of the beginning of the main by-pass at northbound Interstate 29 mile post 12.67, then northwesterly for 0.70 mile, thirty-five miles per hour; the Elk Point Port of Entry scale road beginning 0.71 mile north of the beginning of the main by-pass at northbound Interstate 29 mile post 12.67, then northwesterly for 0.35 mile, twenty 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 0.06 mile, twenty-five miles per hour; then northwesterly and north 0.38 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 0.96 mile, forty-five miles per hour;

(7) State Trunk Highway 105 beginning at a point 0.06 mile west of the west ramps of Interstate 29 at Exit 2, then east and northwesterly 1.99 miles through North Sioux City, thirty miles per hour; then northwesterly for 0.3 mile, forty-five miles per hour; then northwesterly 5.09 miles, fifty-five miles per hour; then northwesterly for 0.2 mile, forty-five miles per hour; then northwesterly for 0.8 mile through Jefferson, twenty-five miles per hour; then west for 0.14 mile to the west ramps of Interstate Highway 29 at Exit 9, forty-five miles per hour.