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The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Highway System in the United States. The system extends throughout the contiguous United States and has ...
Standards for Interstate Highways in the United States are defined by the American Association of State Highway and Transportation Officials (AASHTO) in the publication A Policy on Design Standards: Interstate System. For a certain highway to be considered an Interstate Highway, it must meet these construction requirements or obtain a waiver ...
The National Highway System ( NHS) is a network of strategic highways within the United States, including the Interstate Highway System and other roads serving major airports, ports, military bases, rail or truck terminals, railway stations, pipeline terminals and other strategic transport facilities. Altogether, it constitutes the largest ...
SKAGIT COUNTY, Wash. - State Route 20/North Cascades Highway will remain closed after construction crews say they have found worse conditions than previously expected. There is more mud than what ...
Interstate 5 ( I-5) is a major north–south route of the Interstate Highway System in the United States, stretching from the Mexican border at the San Ysidro crossing to the Canadian border near Blaine, Washington. The segment of I-5 in California runs 796.77 miles (1,282.28 km) [ 1] across the length of the state from San Ysidro to the Oregon ...
List of Interstate Highways. There are 70 primary Interstate Highways in the Interstate Highway System, a network of freeways in the United States. These primary highways are assigned one- or two-digit route numbers, whereas their associated auxiliary Interstate Highways receive three-digit route numbers. Typically, odd-numbered Interstates run ...
Interstate 25. Interstate 25 ( I-25 ), also known as the Pan-American Freeway, is a major Interstate Highway in the western United States. It is primarily a north–south highway, serving as the main route through New Mexico, Colorado, and Wyoming. I-25 stretches from I-10 at Las Cruces, New Mexico (approximately 25 miles [40 km] north of El ...
Highway shields for Interstate 69 and Interstate 70, highways with true gaps and freeway gaps Interstate Highways in the 48 contiguous states System information Formed June 29, 1956 Highway names Interstates Interstate X (I-X) System links Interstate Highway System Main Auxiliary Suffixed Business Future I-70 briefly follows an at-grade portion of US 30 with traffic lights in Breezewood ...