CSAH 1 (CSAH 47 to CSAH 16) Reconstruction Project

Project Description: Olmsted County is leading a project to realign and reconstruct approximately three miles of County State Aid Highway (CSAH) 1 from the CSAH1/CSAH 47 roundabout to CSAH 16 in Simpson.

construction project map

Anticipated project schedule: Spring 2025- Winter 2026 - Design and Right of Way Acquisition | Spring 2027 - Construction

Public Works contact: Assistant County Engineer, Nathan Arnold 507-328-7060 | nathan.arnold@olmstedcounty.gov

Open House - July 16, 2025.

Olmsted County hosted a public open house on July 16, 2025, from 4 to 6 p.m. at the Olmsted County Public Works Service Center (1188 50th Street SE, Rochester, MN 55904). Staff were available to talk about the project, answer questions, and receive comments.