This project is being performed by the Iowa DOT. It will include adding a third lane to the highway from SE 37th Street (NW 54th Avenue) to highway 44 (NW 70th Avenue). Lane closures during the project should be expected. The closures should be done during hours not to affect the morning and evening commutes. During the lane closure times, there will be a detour route through Johnston as well as Grimes. Notification will be sent out by the DOT and will be also shown on this page.
The Iowa DOT has submitted a Traffic Incident Management Plan to be used during construction.