M-157 (Michigan highway)
| Roscommon Road | ||||
M-157 highlighted in red | ||||
| Route information | ||||
| Maintained by MDOT | ||||
| Length | 1.193 mi (1.920 km) | |||
| Existed | 1932–present | |||
| Major junctions | ||||
| South end | M-55 near Prudenville | |||
| North end | M-18 near Prudenville | |||
| Location | ||||
| Country | United States | |||
| State | Michigan | |||
| Counties | Roscommon | |||
| Highway system | ||||
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M-157 is a short state trunkline highway in the US state of Michigan. The highway is entirely within Roscommon County in the Lower Peninsula. It is the fourth-shortest state highway in the system, and it serves as a connector route between M-18 and M-55 just east of Prudenville. The current roadway was built and designated as M-157 in the 1930s.