Is Route 66 and I-40 the same thing?

Completed in 1926, Route 66 winds 2,448 miles from Chicago to L.A. Through most of the Western states, Route 66 follows Interstate 40, which eventually replaced much of the Mother Road. In some areas, the remnants of 66 parallel the interstate as a frontage road.



No, Route 66 and I-40 are not the same thing, although they follow a very similar east-west path across the United States. Route 66, known as the "Mother Road," was established in 1926 as a two-lane highway connecting Chicago to Los Angeles, winding through small towns and local main streets. Interstate 40 (I-40) is a modern, high-speed multi-lane freeway that was built as part of the Eisenhower Interstate System to bypass those small towns and provide faster travel. In many parts of the Southwest (particularly in Oklahoma, Texas, New Mexico, and Arizona), I-40 was built directly on top of or parallel to the old Route 66. Because of this, Route 66 was officially decommissioned in 1985. Today, travelers can still find "Historic Route 66" segments that loop away from I-40, taking you through iconic spots like Seligman, Arizona, or the Midpoint Cafe in Texas. While I-40 is the road you take for efficiency, Route 66 is the "scenic" road you take for nostalgia, kitschy roadside attractions, and a glimpse into mid-century Americana.

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Portions of the road have now been designated as National Scenic Byways or as “Historic Route 66” in several states including Arizona, New Mexico, Illinois, and Missouri. Vintage Shell gas station (left) built in 1926 on Route 66 in Mount Olive, Illinois (photo taken between 1980 and 2006).

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In John Steinbeck's novel The Grapes of Wrath (1939), the highway symbolizes escape, loss, and the hope of a new beginning; Steinbeck dubbed it the Mother Road. Other designations and nicknames include the Will Rogers Highway and the Main Street of America.

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Route 66's popularity led to its downfall, with traffic swelling beyond its two-lane capacity. In 1956, legislation created the Interstate System, and over the course of three decades, five separate interstates bypassed segment after segment of Route 66.

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In some states Rt 66 is not well- marked and it was often difficult to find where it picks up when one section of it ends. But all in all it is worth the effort if you want to see some almost forgotten bits of Americana. Lots of worthwhile stops along the way, but they are scattered across 2,400 miles.

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U.S. Route 66 (also known as Route 66, U.S. Highway 66, The Main Street of America, The Mother Road and the Will Rogers Highway) was a highway in the U.S. Highway System. One of the original U.S. highways, Route 66 was established on November 11, 1926. However, road signs did not go up until the following year.

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Jericho Gap, Texas This became so profitable that there were rumors that some residents watered down the road to increase the plight of Route 66 travelers. Eventually, Route 66 was rerouted to higher ground in the 1930s and the area dwindled into a ghost town.

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U.S. Route 20 is the ??longest road, beginning in Boston at Route 2 and runs through to an intersection with US 101 in Newport, Ore. A dozen states make up U.S. Route 20, covering 3,365 miles of road.

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If you to travel the most famous routes, you will need a sedan or city SUV. If you want to use the oldest routes, definitely choose a SUV 4×4 with a high chassis. Don't forget about the passengers – if there are more of you, choose the car size that provides enough comfort to everyone.

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As with the Grand Canyon, Las Vegas isn't considered part of the original Route 66. But, it's a city you might be keen to experience at least once, and it's close enough (five hours' drive) to the canyon. En route is Seligman, a classic Route 66 town of traditional motels, diners, shops and flashing neon signs.

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The road and the towns it snaked through began their downward trend in 1956, when President Dwight D. Eisenhower signed the Interstate Highway Act. Route 66 was officially decommissioned as a highway in 1985. Bigger, faster roads were built to bypass the highway.

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