M-115 | ||||
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M-115 highlighted in red
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Route information | ||||
Maintained by MDOT | ||||
Length: | 96.432 mi (155.192 km) | |||
Existed: | c. May 1929 – present | |||
Major junctions | ||||
West end: | M-22 in Frankfort | |||
East end: |
Bus. US 127 / Bus. US 10 in Clare |
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Location | ||||
Counties: | Benzie, Manistee, Wexford, Osceola, Clare | |||
Highway system | ||||
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M-115 is a state trunkline highway in the northwestern part of the Lower Peninsula of the US state of Michigan. The highway takes a generally southeast-to-northwest direction between Frankfort on Lake Michigan and Clare in the central part of the state. The northwestern end is at M-22 next to Betsie Lake; the southeastern end in downtown Clare is at an intersection with Business US Highway 127 (Bus. US 127) and Bus. US 10. In between, the trunkline runs about 96 1⁄2 miles (155.3 km) through woodlands, including areas that are a part of either the Manistee National Forest or the Pere Marquette State Forest. The highway also passes agricultural areas, several lakes in the region and a state park near Cadillac.
M-115 was first designated in the 1920s on the northwestern end near Frankfort. Additional, disconnected sections were designed as part of the trunkline in the 1930s near Cadillac, Farwell and Mesick. All but one of these gaps (Cadillac–Mesick) was eliminated by the end of that decade. The remaining segment was built in the 1950s to unite M-115 into a single highway. The last change came in 1989 when the highway was extended into Clare to its current southern terminus.