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|direction_b=North |terminus_b= in Farmington Hills |counties=Monroe, Wayne, Oakland |previous_type=MI |previous_route=247 |next_type=MI |next_route=294 }} Interstate 275 (I-275) in the US state of Michigan is an Interstate Highway that functions as a western bypass of the Detroit metropolitan area. The Michigan Department of Transportation (MDOT) maintains it as a component of the larger state trunkline highway system. The freeway runs through the western suburbs near Detroit Metropolitan Wayne County Airport. Along its routing, I-275 crosses several rivers and rail lines in the area. The southern terminus is the interchange with I-75 near Newport, northeast of Monroe. According to the Federal Highway Administration (FHWA), the length is while MDOT reports the length at , a discrepancy due to a disagreement over the northern terminus. The FHWA considers I-275 to end at the junction with I-96 and M-14 along the boundary between Livonia and Plymouth Township. MDOT extends I-275 northward running concurrently with I-96 to the junction with I-696 and M-5 on the Farmington Hills–Novi city line. 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 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. ==Route description== I-275 begins at exit 20 along I-75 in northeastern Monroe County. The surrounding area is farmland and residential subdivisions in the adjacent Frenchtown and Berlin charter townships near the community of Newport. The freeway angles to the northwest and crosses US Highway 24 (US 24), which is also called Telegraph Road. After this interchange, I-275 turns to the north, running east of Carleton, crossing the Canadian National Railway and Conrail Shared Assets lines north of exit 5. At Will Carleton Road, the trunkline crosses into Wayne County. There it continues on a northerly path parallel to a CSX Transportation line through southern Wayne County. The freeway crosses the Huron River at South Huron Road, adjacent to Willow Metropark.〔 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. Past I-94,〔〔 the highway crosses over the same CSX line and a Norfolk Southern Railway (NS) line〔 and passes a campus of Wayne County Community College and the headquarters of the Visteon,〔〔 a major auto parts supplier spun off from Ford Motor Corporation. Near these two complexes, the freeway turns north again, running parallel to the east of Haggerty Road.〔〔 The freeway crosses over another NS railroad line also used by Amtrak trains from Chicago and Pontiac,〔 US 12 (Michigan Avenue) and M-153 (Ford Road) in Canton.〔〔 I-275 crosses the Lower Branch of the River Rouge north of Michigan Avenue and the Middle Branch north of Ford Road〔〔 It also crosses over the same CSX line a third time.〔 North of the Middle Branch of the River Rouge in Plymouth Township, I-275 crosses Schoolcraft Road and another CSX line from Detroit.〔〔 The interchange with I-96 (Jeffries Freeway) on the border between Plymouth Township and Livonia is where the FHWA considers I-275 to end. This interchange is where I-275 meets I-96, which merges from the east on the Jeffries Freeway and turns north to run concurrently with I-275. From the west, the M-14 freeway merges and ends. MDOT still considers the freeway north of here part of I-275, and signs it as such.〔 At the time the freeway from this interchange northward to Farmington Hills was opened to traffic, it was dual-signed as I-96/I-275, and the segment from freeway from Novi to Davisburg that was to be either I-275 or M-275 was still an active proposal.〔〔 I-275 is shown running concurrently with I-96 through Livonia and Farmington Hills on MDOT maps,〔 and other map makers and mapping service providers such as Rand McNally and Google Maps label their maps in accordance with MDOT and not FHWA.〔 North of the interchange with the Jeffries Freeway, the combined I-96/I-275 curves to the east into Livonia, running parallel to Haggerty Road and continuing through suburban areas. The freeway has interchanges with 6 Mile and 7 Mile roads in the northwest corner of Livonia. I-96/I-275 passes through an interchange with 8 Mile Road while crossing into Oakland County entering the southwest corner of Farmington Hills. North of 10 Mile Road, I-96/I-275 crosses Grand River Avenue. Here the ramps start to connect with both directions of M-5, the start of eastbound I-696 or the continuation of westbound I-96. MDOT ends the I-275 designation at this massive interchange. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interstate 275 (Michigan)」の詳細全文を読む スポンサード リンク
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