M-13 (Michigan highway)
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| M-13 |
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| Maintained by MDOT | |||||||||
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| Length: | 72.22 mi[1] (116.23 km) | ||||||||
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| Formed: | Current route 1931 | ||||||||
| South end: |  I-69 near Lennon |
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| Major junctions: |
 M-57 near Chesaning
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| North end: |  US 23 near Standish |
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| Counties: | Shiawassee, Genesee, Saginaw. Bay, Arenac | ||||||||
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M-13 is a 72.22 mile north-south highway that cuts through the bay region of the U.S. state of Michigan. The southern terminus is at I-69 south of the town of Lennon with its northern terminus located south of Standish.
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[edit] Route description
M-13 starts at its junction of Interstate 69 near the villige of Lennon along the Genesee and Shiawassee County line. The highway then enters the city of Saginaw.
[edit] History
M-13's former northern terminus was at CONN M-13 in Kawkawlin. This highway goes through the cities of Saginaw, Bay City, Linwood and Pinconning. The remaining segment of M-13 between Kawkawlin and Standish is a relic of the former pre-freeway segment of US 23 since it was an extension supplanted by the AASHTO banning of the ALT US 23.
[edit] Major intersections
| County | Location | Mile | Roads | Notes |
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| Shiawassee | Lennon | 0.0 | I-69 – Lansing, Flint |
Southern terminus. I-69 signed east/west between Lansing and Port Huron. |
| 2.4 |  M-21 (Corunna Road) |
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| Montrose | 14.5 | M-57 |
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| Saginaw | Saginaw | 31.1 |  M-46 |
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| 33.2 |  I-675 |
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| 34.9 |  M-81 |
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| 37.0 |  I-75 / US-23 South – Flint I-75 / US-23 North – Mackinac Bridge, Alpena |
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| Bay | Bay City | 44.5 |  M-84 |
Southern terminus of concurrency |
| 45.7 | M-84 |
Northern terminus of concurrency | ||
| 46.9 |   I-75 BL / M-25 |
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| 51.0 |   M-13 CONN |
M-13 Connector from I-75 | ||
| Arenac | Standish | 72.2 | US-23 – Bay City, Alpena |
Northern terminus |
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| Crossing, no access | Concurrency terminus | Deleted | Unconstructed | Closed | |
[edit] CONN M-13
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| M-13 Connector Connector route of the Michigan highway system |
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| Maintained by MDOT | |||||
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| Formed: | 1961-01-03 as part of US 23 1967-10-06 as ALT US 23 1968 as CONN M-13[2] |
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M-13 Connector (abbreviated CONN M-13) is a Michigan state highway running 2.41 miles (3.88 km) connecting I-75/US 23 to M-13 near the community of Kawkawlin, just north of Bay City.[2]
This short freeway was opened in 1961 as the north end of a new US 23 around Bay City, and was extended north in 1967. After US-23 was rerouted onto the newly opened I-75, The Michigan Department of State Highways, precursor to the state Department of Transportation, wanted to designate the orphaned piece—as well as former US 23 north of the freeway—as ALT US 23. However, the American Association of State Highway Officials declined, and M-13 was extended north on the surface section, with the freeway becoming M-13 Connector.
MDOT internally calls the road "Connector 14", as the 14th connector in sequence.
[edit] References
- ^ Bessert, Christopher J. (2006-04-23). Michigan Highways: Highways 10 through 19. Michigan Highways. Retrieved on 2006-07-25.
- ^ a b Michigan Highways: Business Connections 2 through 31. Bessert, Christopher J. URL Accessed 4 September 2006.
