M-19 (Michigan highway)
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M-19 highlighted in red
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| Route information | ||||
| Maintained by MDOT | ||||
| Length: | 85.626 mi (137.802 km) | |||
| Existed: | c. July 1, 1919 – present | |||
| Major junctions | ||||
| South end: |
 I-94 near New Haven
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 M-46 in Sandusky
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| North end: |
 M-142 near Bad Axe
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| Location | ||||
| Counties: | Macomb, St. Clair, Sanilac, Huron | |||
| Highway system | ||||
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→
I-69 near Emmett
M-90 near Peck
M-19 is a north–south state trunkline highway in the US state of Michigan. The trunkline begins northeast of Detroit at a junction with Interstate 94 (I-94) near New Haven and runs northward to a junction with M-142 just east of Bad Axe in The Thumb region of the Lower Peninsula. The highway runs through mostly rural and agricultural areas, connecting several small communities.
Dating back to the original signposting of the state highway system, M-19 initially connected Detroit with Port Huron and Port Austin in 1919. In late 1926, the routing was altered to shorten it to Bad Axe on the north and Richmond on the south. Additional changes in the 1950s and 1960s updated the highway to finish paving the roadway and extend it southward to its present terminus.
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Wikipedia