M-231 near Nunica, Ottawa County
The Michigan Department of Transportation (MDOT) is constructing M-231, a new two-lane, limited access roadway from M-45 (Lake Michigan Drive) north to the I-96/M-104/112th Avenue interchange near Nunica in Ottawa County. It will be located west of the existing 120th Avenue roadway.
In addition, a new bridge will be constructed over the Grand River along this new route, making it only the fourth river crossing in Ottawa County. Work includes M-104 improvements near the M-231 intersection, a new I-96 interchange at M-231, and adding a westbound on ramp and eastbound off ramp to the I-96/112th Avenue interchange.
M-231 is estimated to open to traffic by the end of this October. Run or volunteer at the M 23.1 K Run set for October 3.
- Work continues on bridge barrier wall, railing and pedestrian fencing
- The contractor access roads need to be removed
- Detention pond restoration
- Permanent pavement markings
- Work on M-45 is complete with the exception of the installation and activation of the traffic signals at M-231 and 120th Avenue.
- Work on M-231 from M-45 north to the Grand River is complete with the exception of pavement markings, signing and rumble strips.
- The Leonard Street bridge is complete, with the exception of painting.
- Roadway paving is partially complete with leveling-course asphalt needed from Cypress Street to M-104. Final paving, shoulder gravel, etc., will be completed over the next two months.
- Traffic signals at M-104 will be installed in the fall just prior to opening.