Crews working to reopen M-20 in Isabella County after failed culvert

MT. PLEASANT, Mich. -The Michigan Department of Transportation (MDOT) is working to reopen M-20 (Remus Road) between Sherman Road and Costabella Avenue in Isabella County.

On Thursday, March 12, a failed culvert on M-20 over Pony Creek prompted MDOT to close the roadway in both directions for culvert repairs. Staff are working to determine a tentative timeline for repairs and reopening of the roadway.

MDOT has secured several sections of concrete pipe to temporarily replace the failed culvert. Crews are currently completing survey and hydraulic work ahead of laying the new concrete pipes later this week and weekend. Following excavation work, concrete pavement will be laid and require a few days of cure time to gain strength before the road can be reopened to traffic.

This timeline is dependent on weather and material availability, and is subject to change. Future work will include the construction of a new, permanent structure and will likely occur in 2027.

Traffic is temporarily detoured via County Line Road, Blanchard Road and Coldwater Road. Truck traffic is currently detoured via Winn Road, M-46 and M-66.