Traffic congestion is expected through Friday, October 4, at Highway 13 and Route O north of Springfield.
MODOT is working on a new J-turn at the intersection, which will replace the traffic signal there. One northbound lane of 13 is closed, and drivers are urged to find alternate routes such as Highway 160, Route H and Route 65.
The work is expected to be finished by noon on Friday.
Once the work is finished, there will no longer be a traffic signal at the Highway 13 and Route O intersection.