of M-14 was truncated in November 1926 when the US Highway System was formed. From the Jackson area north to Lansing, it was US 127; from Lansing to Cheboygan, it was US 27. In 1930, US 127 was rerouted to replace the remainder of M-14 when US 223 was created. Right afterwards, M-14 was designated from Battle Creek to Edmore. This designation of M-14 was eliminated when M-66 was rerouted to replace it in the mid-1940s. Current designation In 1956, the portion of US 12 from the west side of Ann Arbor into Detroit was rerouted from surface streets to new stretches of freeways running south of Ann Arbor and Ypsilanti. The former route of US 12, much of which was known as Plymouth Road, was retained as a trunkline and redesignated M-14. In 1964, a northern bypass connecting US 23 with M-153 was completed, and M-14 was rerouted onto the new freeway; the highway still ran through Ann Arbor along routes now designated Bus. US 23 and Business Loop I-94. The following year, the freeway was extended to its present western terminus at I-94, and M-14 is removed from the business routes and transferred to the expressway. In 1977, when the Jeffries Freeway (I-96) was completed, M-14 was shortened to have its eastern terminus at I-275 exit 28 in Plymouth Township, and the portion of Plymouth Road within the city of Detroit was returned to local control. The portion of Plymouth Road–Ann Arbor Road between I-275 and the city boundary with Redford Township was retained as an unsigned trunkline, maintained by the state to this day. In 1979, the final segment of the M-14 freeway, between M-153 and I-275 was completed. The former route of M-14 in Washtenaw County along Plymouth–Ann Arbor Road was returned to local control. The portion of Ann Arbor Road from the Wayne County line east to I-275 also became an unsigned state trunkline, also still maintained by MDOT. Exit list See also References External links M-14 at Michigan Highways 014 Freeways and expressways in Michigan Transportation in Washtenaw County, Michigan Transportation in Wayne County, Michigan