MANKATO, Minn. – Nine more two-lane highway segments in south central Minnesota will have speed limit increases from 55 miles per hour to 60 miles per hour by the end of 2018. The increases are the result of a 2014 legislative mandate for MnDOT to study posted speed limits on all two-lane state highways and make recommendations for possible speed limit increases. MnDOT District 7, which consists of 13 counties, has completed the study on its rural two-lane highways.
The sections of highway which will have increased speed limits (when posted with black and white signs) are:
· Highway 4 from I-90 (Sherburn) to Sleepy Eye
· Highway 14 from Highway 71 to New Ulm
· Highway 15 from the Iowa border to Winthrop
· Highway 19 from Fairfax to Gaylord
· Highway 19 east of New Prague to Highway 13
· Highway 22 from Iowa border to Mankato
· Highway 59 from Iowa to Highway 60
· Highway 62 from Fulda to Windom
· Highway 109 from Wells to Alden
A map showing which routes are already 60 mph and which are changing to 60 mph yet this year is available by clicking here.
Highway 22/111 from Nicollet to Highway 212 will remain 55 mph speed limit until after construction in 2020 when pavement will be added to the shoulders with a rumble strip.
The speed limit is effective when the new signs are posted. Existing stop conditions or urban environments are used for the transition in speeds so that motorists will see a posted sign.
“The speed study gave MnDOT the opportunity to review speed limits on 55 mph state highways in our area and identify those that can support a higher speed limit without compromising safety,” said Scott Thompson, MnDOT traffic engineer.
The increases are based on a traffic and engineering investigation of each highway, which looks at past crash history, physical attributes of the highway such as shoulder widths and access points, and what speed drivers are currently driving. In some cases, the study results in the speed limit staying the same.