M-100 (Michigan highway)
M-100 highlighted in red | ||||
| Route information | ||||
| Maintained by MDOT | ||||
| Length | 12.460 mi (20.052 km) | |||
| Existed | c. 1925–present | |||
| Major junctions | ||||
| South end | I-69 south of Potterville | |||
| M-43 in Grand Ledge | ||||
| North end | I-96 near Grand Ledge | |||
| Location | ||||
| Country | United States | |||
| State | Michigan | |||
| Counties | Eaton, Clinton | |||
| Highway system | ||||
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M-100 is a north–south state trunkline highway in the central region of the U.S. state of Michigan. It runs between Potterville and Grand Ledge, connecting Interstate 69 (I-69) and I-96 west of the state capital, Lansing. The highway was previously a section of M-16. After M-16 was realigned, M-100 was created by 1927. Three extensions in the 1930s, 1950s and 1990s resulted in the current highway routing.