Interstate 94 is a 1,585-mile long highway in the northern and Midwestern United States crossing seven different states. Like all even-numbered Interstate highways, it runs from east to west. Its western terminus is where it meets Interstate 90 near Billings, Montana. Its eastern terminus is at the Blue Water Bridge in Port Huron, Michigan where it crosses the Canadian border and becomes Ontario Highway 402.
I-94 begins at Billings and travels northeastward to the border of North Dakota.
I-94 continues southward through downtown Chicago, around Lake Michigan.
After a brief northward trek along the east coast of Lake Michigan, I-94 turns eastward and continues on that path all the way to Detroit. In the city it intersects with Interstate 96 and Interstate 75. On the way to its end it meets Interstate 69 at Port Huron, north of Detroit, before ending at Highway 402 at the Canadian border.
Exit 215 - M-10, the John C. Lodge Freeway, a 23-mile freeway extending from the suburb of Southfield to downtown.
Exit 215C - M-1, or Woodward Avenue, a major northwest-southeast road through Detroit and its suburbs, extending to the city of Pontiac, Michigan.
Exits 219, 231 & 243 - M-3, also known as Gratiot Avenue, a major northeast-southwest road going from the city center of Detroit to the city of Port Huron.
Exit 225 - M-102, or 8 Mile Road, the road famous for being the dividing line between Detroit's affluent white suburbs and more impoverished African-American inner city.
Exit 229 - Interstate 696, the busiest freeway in Michigan.
Exit 236 - Metro Parkway, also known as 16 Mile Road, a major east-west thoroughfare in the suburbs of Detroit. It leads to the Metro Park on the coast at its eastern end.
Exit 240 - M-59, also known as Hall Road, leading to the Selfridge Air National Guard Base (Selfridge ANG), the largest Reserve Forces base in the United States.
Exit 271 - Interstate 69, westward to Flint; the last major junction before reaching the border of Canada.
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