Hwy 63 and Co. Rd. 112 Roundabout

About this project

Project area map — View full-size project area map.

Summary of work

Construction of a roundabout at the intersection of Hwy 63 (75th St. NW) and Olmsted Co. Rd. 112 (18th Ave. NW) started June 2 north of Rochester and work was completed Sept. 11, 2025.

In addition to the roundabout construction, crews installed new lighting, made accessibility improvements and installed a box culvert north of Hwy 63 on Co. Rd. 112.

Find information about the planning of the project on the public engagement website.

Benefits of a roundabout

Significantly reduces the risk of serious and fatal crashes

Roundabouts show an 86% decrease in fatal crashes and an 83% decrease in life-altering injury crashes

Allows drivers to get through the intersection more safely and in less time

Roundabouts handle high levels of traffic with less delay than most stop signs or signals

Slows traffic to make entering and exiting the area easier for all users

Entry curves in the approach will slow traffic entering

Navigating a roundabout

Roundabouts may be unfamiliar at first, but with practice, navigating them will get easier with each trip. Watch our roundabout simulation and see how it works. Learn more about roundabouts.