Interstate 675 (Michigan)
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I-675 highlighted in red
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| Route information | ||||
| Auxiliary route of I-75 | ||||
| Maintained by MDOT | ||||
| Length: | 7.728 mi (12.437 km) | |||
| Existed: | October 21, 1971 – present | |||
| Major junctions | ||||
| South end: |
  I-75 / US 23 near Saginaw
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 M-58 in Saginaw |
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| North end: |
I-75 / US 23 in Zilwaukee
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| Location | ||||
| Counties: | Saginaw | |||
| Highway system | ||||
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Interstate 675 (I-675) is an auxiliary Interstate Highway in the US state of Michigan. The freeway is a 7.7-mile-long (12.4 km) loop route through downtown Saginaw, as I-75 passes on the east side of the city. I-675 is also a state trunkline highway that provided a bypass of the former drawbridge carrying I-75 and US Highway 23 (US 23) across the Saginaw River. Construction of I-675 started in 1969 and the freeway opened in 1971. Since then, sections near downtown were reconstructed from 2009 through 2011 to update one of the freeway's interchanges and rebuild the bridge over the Saginaw River.
Splitting from I-75/US 23 on the eastern side of Saginaw, I-675 turns west toward downtown. The freeway runs between residential neighborhoods and has an interchange with Veterans Memorial Parkway. West of that interchange, it crosses a line of the Huron and Eastern Railway. From there, it runs on the northern edge of downtown near the Dow Event Center, spanning the Saginaw River on the Henry G. Marsh Bridge. On the west side of the river, the trunkline meets an interchange with M-58. From there it turns northward, crossing a line of the Mid-Michigan Railroad. I-675 continues northward, passing to the east of the Aleda E. Lutz VA Medical Center and through more residential neighborhoods in Saginaw Township North. After the interchange with Tittabawassee Road, which provides access to the Fashion Square Mall, I-675 turns northeasterly to connect back to I-75/US 23 north of the Zilwaukee Bridge. The entire length of the freeway has four lanes (two in each direction).
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