The southern terminus for Highway 22 is at the Iowa state line, near Kiester, where Highway 22 becomes Winnebago County Road R50 (140th Avenue) upon crossing the state line.
History
State Highway 22 was authorized in 1920 from St. Peter to Paynesville.[3] In 1934, it was extended south to the Iowa state line, and its northernmost section between Eden Valley and Paynesville became part of State Highway 55.
The section of Highway 22 between Mankato and St. Peter follows the original route of U.S. Highway 169. When the parallel route west of the Minnesota River was first completed in the late 1950s, it originally carried the Highway 22 designation for a few years until it was redesignated U.S. 169 and Highway 22 reverted to its original alignment.[1]
From 1934 to 1961, the northern terminus for Highway 22 was at its intersection with State Highway 55 in Eden Valley. The Highway 22 designation was extended north to Richmond in 1961.[1] Highway 22 will be redone from Mapleton to CO RD 90 just south of Mankato starting March 27, 2017, with the project finalizing in 2019. It will be a 3 part project, with the first stage being Mapleton to Beauford in 2017. In 2018 from Beauford to CO RD 90. Finally in 2019 the Victory Drive Memorial will be finished.
^Minnesota State Legislature (2010). "§ 161.114, Constitutional Trunk Highways". Minnesota Statutes. Minnesota Office of the Revisor of Statutes. Retrieved October 9, 2010.
CR R50 at the Minnesota – Iowa state line
I-90 near Wells and Kiester
MN 109 at Wells
MN 30 at Mapleton
US 14 at Mankato
US 169 / MN 99 at St. Peter
MN 5 / MN 19 at Gaylord
US 212 at Glencoe
MN 7 / MN 15 at Hutchinson
US 12 / MN 24 at Litchfield
MN 55 at Eden Valley
MN 23 at Richmond
