What is the flattest road in the world?

Interstate 80 crosses the Bonneville Salt Flats in Utah, which, as the name suggests, are as flat as the road is straight. The road itself bisects the United States, from New York to California, but its journey through Utah is what excites drivers who hate steering.



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The straightest interstate is a dry lake bed in Utah. There are more than thirty miles of Interstate 80 across the Bonneville Salt Flats in Utah that are straighter than either of those—and flat as a pancake to boot, if you're looking to travel in a straight line in all three dimensions.

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US Route 50 This entire 3,000 mile route is dubbed “America's Loneliest Road.” Route 50's path cuts across the corner of Utah, passing by the Canyonlands National Park, the Arches National Park and through the vast emptiness of the Great Salt Lake Desert.

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The answer to the trivia question of which is the loneliest road in the United States: James W. Dalton Highway, which spans 414 miles between Fairbanks and Deadhorse in Alaska. An interactive map allows exploration of the loneliest road in all 50 states.

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Regarding the most fatalities per 100 miles, Interstate 95 (I-95) is considered the most dangerous road in America.

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The curviest road in America Deals Gap is a mountain pass between Tennessee and North Carolina where over 11 miles, you'll twist through 318 turns. Because of the curvy path, this stretch is known as the Tail of the Dragon.

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Dalton Highway, Alaska Alaska's 414-mile Dalton Highway runs through some of the state's most remote wilderness from Livengood to Prudhoe Bay. It passes by only three small towns (Coldfoot, Wiseman, and Deadhorse), and for the last 240 miles of the drive, there are no gas stations, restaurants, or any kind of services.

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Route 66 became a popular route because of the active promotion of the U.S 66 Highway Association, which advertised it as “the shortest, best and most scenic route from Chicago through St. Louis to Los Angeles.”

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