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According to the Federal Highway Administration, there are 46,876 miles of interstate highway in the United States. The Interstate System was built with funds allocated to each state by a series of acts of Congress. More »

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There is no minimum requirement for the number of rest stops located along interstate highways. The wording in the document that established policy for safety rest areas on the interstate highway system called for a suff... More »

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As of 2014, individual states are responsible for implementing and utilizing real-time information programs covering traffic and travel conditions on all interstate highways within each state. Typically each state's Depa... More »

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The United States has a horizontal width of approximately 2,680 miles and a vertical distance of 1,582 miles. Of the country's states, Alaska is the northernmost, westernmost and the easternmost while Hawaii is located f... More »

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The distance across the United States, from Florida to Washington, is 2,802 miles. This is the longest straight line distance across the United States. More »

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The widest distance between the East Coast and the West Coast of the United States is approximately 2,800 miles. However, the distance between the two coasts varies depending on specific locations. More »

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The distance between the East Coast and the West Coast of the United States ranges between 2,600 and 3,200 miles, depending on the route. The shortest route is referred to as the Southern Pacific route or Route 80, while... More »

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