Highway 14 between New Ulm and Nicollet shuts down today.
Crews will begin work Monday on the long-awaited expansion of the highway, a project decades in the making.
Traffic will be detoured to Highway 68, Highway 15, and Highway 169 during construction, which is expected to last until fall 2023.
A 12 ½ mile stretch of roadway will be expanded to four lanes. The new highway will bypass Courtland and a new interchange will be added at County Rd 37 at New Ulm.
The Minnesota Department of Transportation expects the project to be completed as early as October 2023.