| Southern Terminus: |
I-94 at Exit 247, 1.7 miles south of New Haven |
| Northern Terminus: |
M-142 three miles east of downtown Bad Axe |
| Length: |
 84.769 miles |
| Map: |
 Route Map of M-19 |
| Notes: |
Prior to the debut of the US Highway system, M-19 began in downtown
Detroit and ran northeasterly out of the city on Gratiot Ave all
the way to Port Huron. From there, M-19 backtracked westerly with M-21 to Goodells, then northwesterly and northerly through Yale,
Sandusky and Ubly to M-31 (present-day M-142) three miles east of
Bad Axe. From there M-19 ran westerly into Bad Axe, then due northerly
to end in Port Austin at M-27 (present-day M-25). Portions of that
route later became US-25, M-136, M-142 and M-53. Today, M-19 uses
much of its pre-1925 routing, specifically from Yale to M-142. |
| |
In "State Trunkline Needs, 1960–1980," a set of maps prepared by the State Highway Dept's Office of Planning, Programming Division in 1960 showing possible additions, upgrades and improvements to the state trunkline system over the ensuing twenty years, MSHD staff suggested realigning M-19 onto a new highway routing from Muttonville (where M-19 met US-25/Gratiot Ave southeast of downtown Richmond on the Macomb/St Clair Co line) southeasterly to an interchange with the I-94/US-25 freeway at the present-day Meisner Rd overpass. In the end, this new alignment was never built and M-19 was extended southwesterly along Gratiot Ave to replacing US-25 to New Haven, then southeasterly
along New Haven Rd to the newly completed I-94/US-25 freeway. |
| History: |
1920s – For details on M-19's pre-1926 routing, see the first note above. |
| |
1926 – With the coming of the US Highway system in 1926, the first
56 miles of what had been M-19 from Detroit to Port Huron were redesignated
as part of US-25. M-19 was then realigned to run on a more direct
course southerly from Yale through Emmett and Memphis, ending at
the new US-25 near Richmond. The former concurrent segment along M-21 from Port Huron to Goodells retains the M-21 designation,
the portion from Goodells northerly to Avoca is turned back to local control, while the Avoca–Brockway segment will be incorporated into a new iteration of M-13 in another year. On its northern end, M-19
is scaled back from Port Austin to end at M-83 (present-day M-142)
three miles east of Bad Axe. The former route of M-19 into Bad Axe
now becomes M-83, with the segment from Bad Axe to Port Austin redesignated
as part of M-29. |
| |
1955 – The concurrent M-19/M-90 segment south of Peck is shortened
by two miles with a realignment of M-90 between Brown City and M-19. |
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1958 – The final 10-mile gravel-surfaced segment of M-19, from
Elmer to Argyle, is paved. |
| |
1963 – The M-19 designation is extended southerly from Muttonville (southeast of downtown Richmond)
along Gratiot Ave (formerly US-25) to New Haven, then southeasterly
along New Haven Rd to the newly completed I-94/US-25 freeway. |
| Controlled-Access: |
No portion of M-19 is freeway or expressway. |
| NHS: |
M-19 is part of the National Highway System (NHS) along its concurrent run with M-46 in Sanilac Co from the west jct of M-19 & M-46 west of Sandusky to the east jct of M-19 & M-46 in downtown Sandusky. (5.0 miles) (This segment was added in 2012 with the passage of the MAP-21 funding and authorization bill.) |
| Memorial Highway: |
At present, no portion of M-19 has been designated as part of a Memorial Highway. |
| Photographs: |
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| Weblinks: |
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