South Dakota Highway 30

Highway 30
Route of SD 30 (in red)
Route information
Defined by SDCL §31-4-154
Maintained by SDDOT
Length:	17.077 mi (27.483 km)
Existed:	1954 (approx.) – present
Major junctions
West end:	I-29 west of White
East end:	MN 19 southwest of Hendricks, Minnesota
Location
Counties:	Brookings
Highway system
South Dakota Highways Interstate U.S. State ← I-29 SD 32 →

South Dakota Highway 30 (SD 30) is a state route located in east central South Dakota. It begins at Interstate 29 west of White, and runs easterly to the Minnesota border, becoming Minnesota State Highway 19. It is 17 miles (27 km) in length.

South Dakota Highway 30 begins at a diamond interchange with Interstate 29 and heads east for about six miles before curving to the northeast, bypassing the town of White. The highway then curves to the east again, traveling in that direction for about 8.5 miles (13.7 km) before crossing into Minnesota and becoming Minnesota State Highway 19.

The route of SD 30 is defined in South Dakota Codified Laws § 31-4-154.

This is the second usage of the South Dakota 30 identifier.

The initial South Dakota 30 was assigned in the 1920s, to the route of the Black and Yellow Trail. It began at the Wyoming border southwest of Lead, and ran eastward across the state to the Minnesota border near Elkton. The number was replaced around 1926 with the implementation of the U.S. highway system. The Wyoming to Sturgis segment became U.S. Route 85, the Sturgis to Midland segment South Dakota Highway 65, and the Hayes to Minnesota segment U.S. Route 14.