Interstate 275 (Michigan)

Interstate 275
Interstate 275
	I-275 highlighted in red, the segment unrecognized by FHWA in purple
Route information
	Auxiliary route of I-75
	Maintained by MDOT
Length	35.026 mi (56.369 km) 29.97 miles (48.23 km) according to FHWA
Existed	January 14, 1977–present
NHS	Entire route
Major junctions
South end	I-75 near Monroe
	US 24 near Carleton; I-94 in Romulus; US 12 in Canton; I-96 / M-14 near Livonia;
North end	I-96 / I-696 / M-5 in Farmington Hills
Location
Country	United States
State	Michigan
Counties	Monroe, Wayne, Oakland
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Michigan State Trunkline Highway System; Interstate; US; State; Byways;

Interstate 275 (I-275) is an auxiliary Interstate Highway in the US state of Michigan that acts as a western bypass of the Detroit metropolitan area. The Michigan Department of Transportation (MDOT) maintains the highway as part of the larger State Trunkline Highway System. The freeway runs through the western suburbs near Detroit Metropolitan Wayne County Airport, and crosses several rivers and rail lines in the area. The southern terminus is the interchange with I-75 near Newport, northeast of Monroe. MDOT considers the Interstate to run to an interchange with I-96, I-696 and M-5 on the Farmington Hills–Novi city line, running concurrently with I-96 for about five miles (8.0 km). This gives a total length of about 35.03 miles (56.38 km), which is backed up by official signage. According to the Federal Highway Administration (FHWA), the length is 29.97 miles (48.23 km) because that agency considers I-275 to end at the junction with I-96 and M-14 along the boundary between Livonia and Plymouth Township. All other map makers, like the American Automobile Association, Rand McNally and Google Maps follow MDOT's practice.

A highway roughly parallel to the modern I-275 was included in early planning maps for the Interstate Highway System in the 1950s. As plans developed through the 1960s and into the early 1970s, the freeway was to run from I-75 near Newport north to Novi and connect back to I-75 near Davisburg. Some plans in the 1970s had the northern Novi–Davisburg section numbered as a state highway M-275. The southern half of I-275 was built in segments that were completed in January 1977. Later that month, the state canceled the northern section because of local opposition. A later attempt to revive the proposal failed in 1979. Additional plans to complete M-275 through Oakland County were kept on the drawing boards through the 1980s, but failed to materialize. M-5 (Haggerty Connector) opened along part of the former I-275/M-275 right-of-way between 1994 and 2000.

^ Cite error: The named reference PRFA was invoked but never defined (see the help page).
^ Adderly, Kevin (January 27, 2016). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration. Archived from the original on May 11, 2016. Retrieved May 31, 2016.
^ Cite error: The named reference LDN77 was invoked but never defined (see the help page).

[PRFA-1] Cite error: The named reference PRFA was invoked but never defined (see the help page).

[FHWA-2] Adderly, Kevin (January 27, 2016). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration. Archived from the original on May 11, 2016. Retrieved May 31, 2016.

[LDN77-3] Cite error: The named reference LDN77 was invoked but never defined (see the help page).

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