Мичиган штатындағы I-275 тас жолының тарихы

Interstate Highway in Michigan, United States

In the city of Romulus, I 275 begins to take on a more suburban character when it passes the southwestern boundary of the Detroit Metropolitan Wayne County Airport. There is access to the south side of the airport signed at Eureka Road and to the north side at I 94. Between these two interchanges, I 275 begins to run to the northwest. South of I 94, Near these two complexes, the freeway turns north again, running parallel and to the east of Haggerty Road. Rand McNally and Google Maps

A north–south freeway was originally planned as an Interstate Highway allowing through traffic to bypass the city of Detroit. This plan was included in the 1955 General Location of National System of Interstate Highways (Yellow Book), an early proposal for what would become the Interstate Highway System. The Yellow Book contained an inset of the proposed freeways in and around the Detroit area including a north–south freeway east of the current I 275 corridor. The 1958 numbering plan for Michigan submitted by the State Highway Department had this route initially marked as I 73. William Swanson in the MDOT Highway Planning Unit later stated that the department also planned to reverse the numbering of I 75 and I 275 between Newport and Davisburg; I 75 would have bypassed downtown Detroit just as it bypassed downtown Flint and downtown Saginaw to the north, and the auxiliary number (I 275) would have been used on the freeway through downtown Detroit. The present day freeway was built in stages in the mid 1970s. In 1974, the state highway map of the time showed the highway under construction, but no parts completed. The first 4 mile (6 km) of the freeway were shown opened to traffic from M 153 (Ford Road) in Canton to Schoolcraft Avenue (just south of the I 96 and M 14 interchange) in Plymouth Township by the start of 1975. The segment between US 24 and I 75 in Monroe County was open as well. The second phase was completed in the latter half of 1976, when I 275 was extended north from Schoolcraft Avenue (and the incomplete interchange with the future route of I 96) to the I 96/I 696 interchange in Novi. Then on January 14, 1977, the remaining 23 mile (37 km) section of I 275 between US 24 in Monroe County and M 153 in Canton Township was opened to traffic, completing the current freeway. The final cost to build the I 275 freeway was $145 million (equivalent to $ in ). This northern section was not planned as an Interstate Highway at that time, bearing the designation M 275 instead. Opposition to construction came from various citizens' groups and different levels of local government. Additionally, both The Detroit News and Detroit Free Press opposed the project. The Detroit City Council, led by then Chairman Carl Levin, opposed the plan. Levin said at the time, "At last I think people are waking up to the dangers of more and more expressways. At some point we've got to say enough. And I think we've reached it." At the end of the 1970s, MDOT took part in a FHWA backed initiative called the Positive Guidance Demonstration Project, and the two agencies audited signage practices in the vicinity of the I 96/M 37 and I 296/US 131 interchange in Walker near Grand Rapids. MDOT determined that usage of the I 296 designation overlapping US 131 was "a potential source of confusion for motorists". FHWA agreed with the department's proposal to eliminate all signage and public map references to the designation in April 1979. and from the FHWA on December 3, 1979, to remove the redundant highway designation from signage and most maps. Following this program, the Reflective Systems Unit at MDOT reviewed the state of two and three way concurrencies along the highway system in Michigan. They approached the department's Trunkline Numbering Committee and the district traffic and safety engineers on October 19, 1982, for proposals to reduce or eliminate the various overlapping designations to "avoid driver confusion and save funds". Included on the initial discussion report was the I 96/I 275 concurrency with a request for comments by November 5 of that year. were implemented in later in 1983 and in 1985, respectively.

In the mid 1970s, MDOT constructed a bike trail parallel to I 275 in response to the energy crisis. Since 2006, the Michigan Trails & Greenway Alliance and MDOT have been working to improve the bike trail. Since a grand re opening in 2011, the bike path has been called the I 275 Metro Trail. In the middle of 2015, MDOT completed reconstruction of the bike trail, resulting in a paved trail from a junction with the Downriver Linked Greenways East–West Trail near South Huron Road in Huron Township northward to 12 Mile Road in Novi.