History
The route of Interstate 86 largely derives from a portion of U.S. Route 30N constructed in the 1920s, which in Idaho originally ran from Burley to a point on the Wyoming state line near Montpelier. Present-day Interstate 86 was designated as part of the Interstate Highway System in 1960 as Interstate 15W. U.S. Route 30N was designated as part of U.S. Route 30 in 1972. Interstate 86 continues to run concurrently with U.S. Route 30 for almost its entire length.
In the late 1970s, the American Association of State Highway and Transportation Officials decided it was better to have duplicate numbers in different parts of the country instead of having suffixes. There was also an Interstate 15E in California at the time. Interstate 15W was re-designated as Interstate 86 in 1980.
Read more about this topic: Interstate 86 (west)
Famous quotes containing the word history:
“I feel as tall as you.”
—Ellis Meredith, U.S. suffragist. As quoted in History of Woman Suffrage, vol. 4, ch. 14, by Susan B. Anthony and Ida Husted Harper (1902)