Route Description
I-475 starts at a partial interchange with I-75 in Grand Blanc Township, southwest of Grand Blanc. From this start at exit 111, the freeway proceeds northward through a suburban residential area next to a baseball field complex. As I-475 continues northward, it has an interchange with Hill Road near the Crestwood Memorial Gardens cemetery and several commercial properties. North of the Maple Road underpass, the freeway crosses into the suburb of Burton where it runs for about 11⁄2 miles (2.4 km) before crossing into the city of Flint. The freeway then curves around to the northeast near Thread Lake, crossing over Saginaw Street. I-475 follows the western shore of the lake as it turns northward to run into downtown Flint.
South of the four-level stack interchange with I-69, I-475 crosses over a line of the Canadian National Railway. North of this interchange, the freeway runs more northwesterly as it skirts the eastern edge of downtown Flint. Near the campus of the University of Michigan-Flint, I-475 curves to run parallel to the Flint River before crossing it next to an industrial area. There is an interchange complex on the northwest side of the river that provides access to Stewart Avenue and M-54 (Dort Highway). I-475 then runs north and northwesterly parallel to a rail line operated by CSX Transportation. North of Carpenter Road, the freeway exits the city of Flint and enters Genesee Township. The Interstate turns to the east to cross into Mount Morris Township before meeting an interchange for Saginaw Street. There is one more interchange for Clio Road before I-475 terminates at a full interchange with I-75's exit 125.
I-475 is maintained by the Michigan Department of Transportation (MDOT) like other state highways in Michigan. As a part of these maintenance responsibilities, the department tracks the volume of traffic that uses the roadways under its jurisdiction. These volumes are expressed using a metric called annual average daily traffic, which is a statistical calculation of the average daily number of vehicles on a segment of roadway. MDOT's surveys in 2010 showed that the highest traffic levels along M-14 were the 57,400 vehicles daily north of the I-69 interchange in Plymouth Township; the lowest counts were the 18,637 vehicles per day west of the Clio Road interchange. As an Interstate Highway, I-475 has been listed on the National Highway System, a network of roads important to the country's economy, defense, and mobility.
Read more about this topic: Interstate 475 (Michigan)
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