Minnesota Department of Transportation

511 Travel Info

US 71


About this project

  • Replace the bridge over the Cottonwood River south of Sanborn. The existing bridge was built in 1931 and is near the end of its useful life.
  • The new bridge will be wider with 12-foot driving lanes and 10-foot shoulders.
  • Minor work will take place on the approaches to improve drainage on the bridge, including reshaping the ditches and stream stabilization.
  • New guardrail will be installed.

Traffic impacts

  • The US 71 Cottonwood River crossing will remain closed during construction (shown in red on map); please use the detour route (blue line on map) which follows Brown CR 21 & 2, and Hwy 14.
  • The city bridge river crossing (shown in orange on map) will also be closed and detoured during the project.

Map showing US 71 bridge location in Sanborn and detour route

Project updates

Friday, July 23, 2021

  • This week, crews placed riprap and removed the north cofferdam which had allowed work below the waterline. They also prepared the site for setting beams next week.

Removing the north cofferdam for the new Sanborn bridge on US 71.