&sq=Google&lang=en&file=File:M-121_rectangle.svg) M-121 | ||||
|---|---|---|---|---|
| Chicago Drive | ||||
 M-121 highlighted in red | ||||
| Route information | ||||
| Maintained by MDOT | ||||
| Length | 12.763 mi[1] (20.540 km) | |||
| Existed | 2007[2]–present | |||
| Major junctions | ||||
| West end | Chicago Drive and Main Street in Zeeland | |||
| East end |  I-196 in Grandville | |||
| Location | ||||
| Country | United States | |||
| State | Michigan | |||
| Counties | Ottawa, Kent | |||
| Highway system | ||||
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M-121 is a state trunkline highway in West Michigan. The highway follows Chicago Drive, a local roadway, from Zeeland to Grandville. Chicago Drive itself runs past the M-121 segment on either side from Holland to Wyoming. The roadway passes through rural farmland on a route that runs parallel to Interstate 196 (I-196). M-121 forms the main street through the center of Hudsonville as it runs southwest–northeast. It forms a major street through the unincorporated community of Jenison before M-121 terminates at I-196 in Grandville.
The M-121 designation has been used twice before in the state. The first was for a former routing of US Highway 2 (US 2), and the second was for a connection between I-69, I-75/US 23 and Bishop International Airport in the Flint area. Since 2007, M-121 has been used for a portion of the former M-21 in Ottawa County, which was formerly designated as state-maintained "Old M-21". Future plans will reconfigure a section of the current highway from four lanes divided to four lanes undivided.
- ^ Michigan Department of Transportation (2021). Next Generation PR Finder (Map). Michigan Department of Transportation. Retrieved October 11, 2021.
- ^ Grand Region (2007). "Grand Region Five-Year Transportation Program 2008–2012" (PDF). Grand Rapids: Michigan Department of Transportation. Archived from the original (PDF) on December 20, 2007. Retrieved December 7, 2007.