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Highway 42
Route of SD 42 (in red)
Route information
Maintained by SDDOT
Length
71.973 mi[1] (115.829 km)
Western segment
Length
5.870 mi (9.447 km)
West end
US 281 in Aurora County
East end
Aurora–Davison county line
Central segment
Length
59.231 mi (95.323 km)
West end
SD 37 west of Ethan
Major intersections
US 81 in McCook County
East end
Sioux Falls
Eastern segment
Length
6.872 mi (11.059 km)
West end
Six Mile Road in Sioux Falls
East end
Iowa 9 west of Benclare
Location
Country
United States
State
South Dakota
Counties
Aurora
Davison
Hanson
McCook
Minnehaha
Highway system
South Dakota State Trunk Highway System
Interstate
US
State
← SD 41
→ SD 43
South Dakota Highway 42 (SD 42) is a segmented state highway in southeastern South Dakota, United States. The first segment is a six-mile-long (9.7 km) highway in Aurora County. The second and longest is 60 miles (97 km) long and connects Ethan and Sioux Falls. The final segment connects Sioux Falls to Iowa Highway 9 southeast of Rowena.
^"State Highway Log" (PDF). Mitchell region: South Dakota Department of Transportation. January 2011. pp. 100–104. Retrieved December 21, 2011.
and 15 Related for: South Dakota Highway 42 information
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