what does interstate 675 (michigan) refers to?
It is an auxiliary Interstate Highway in the US state of Michigan.
Interstate 675 (Michigan)
Interstate 675 (I-675) is an auxiliary Interstate Highway in the US state of Michigan.
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Interstate 675 (Michigan) [SEP] Introduction
Interstate 675 (I-675) is an auxiliary Interstate Highway in the US state of Michigan. The freeway is a 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 between 2009 and 2011 to update one of the freeway's interchanges and rebuild the bridge over the Saginaw River.