4th Street Steam Line Repairs


Project Timeline

05/10/2019 - 06/10/2019 


The Olmsted Waste-to-Energy Facility (OWEF) supplies steam for heating and cooling to buildings on the Olmsted County District Energy System (DES). Nearly two miles of pipe—most of which is buried underneath 4th Street SE in Rochester—connects the OWEF to buildings on the western end of the DES. These buildings include the Olmsted County Government Center, Work Release Center, Rochester City Hall, Rochester Public Library, Rochester Art Center, and Mayo Civic Center.

Leaks have been discovered at various locations along the 26-year-old steam line causing plumes of steam to rise out of manholes at several locations along 4th Street SE. Repairs are necessary.  


Excavation and inspection work will be localized to the eastbound right lane at the following intersections:

4th Street SE and 6th Avenue SE

4th Street SE and 7th Avenue SE

4th Street SE and 11th Avenue SE

  • 11th Avenue SE will be closed at this intersection during the following times:

    • The week of May 13, periodic weekdays between 9:00 AM and 2:30 PM

    • Friday May 17, starting at 4:15 PM through Sunday, May 19 

    • Friday, May 24, starting at 4:15 PM through Monday, May 27 

4th Street SE and 13th Avenue SE – 13th Avenue will be closed at this intersection

4th Street SE and 14th Avenue SE

Traffic traveling eastbound on 4th Street SE will be restricted to one lane. Westbound traffic will not be affected. Pedestrian access along the south side of 4th Street SE will be interrupted as the sidewalk will be closed at various locations. Access to residents' driveways will not be affected. Please note, inclement weather and unforeseen issues can impact the project timeline. 


For more information, call 507-328-7070 or email pwservice@co.olmsted.mn.us.

Road Closure and Detour

Road Closure and Detour Map (873 KB)

4th Street Detour