Interstate 675 (Michigan)

Interstate 675
I-675 highlighted in red
Route information
Auxiliary route of I-75
Maintained by MDOT
Length	7.728 mi[1] (12.437 km)
Existed	October 21, 1971 (1971-10-21)[2]–present
NHS	Entire route
Major junctions
South end	I-75 / US 23 near Saginaw
Major intersections	M-58 in Saginaw
North end	I-75 / US 23 in Zilwaukee
Location
Country	United States
State	Michigan
Counties	Saginaw
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Michigan State Trunkline Highway System Interstate US State Byways
← M-553 → I-696

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 between 2009 and 2011 to update one of the freeway's interchanges and rebuild the bridge over the Saginaw River.