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The longest highway in the state is Interstate 70 which has a span of 449.51 miles (723.42 km) that runs west to east across the state, serving Grand Junction, Denver, Aurora, and Limon. Interstate 270, I-70's only auxiliary route in Colorado, is the shortest interstate highway in the state, spanning about 7 miles (11 km).
The Eisenhower Tunnel, officially the Eisenhower–Edwin C. Johnson Memorial Tunnel, [ 1 ] is a dual-bore, four-lane vehicular tunnel in the western United States, approximately 60 miles (97 km) west of Denver, Colorado. The tunnel carries Interstate 70 (I-70) under the Continental Divide in the Rocky Mountains. With a maximum elevation of ...
Interstate 70 (I-70) is a transcontinental Interstate Highway in the United States, stretching from Cove Fort, Utah, to Baltimore, Maryland. In Colorado, the highway traverses an east–west route across the center of the state. In western Colorado, the highway connects the metropolitan areas of Grand Junction and Denver via a route through the ...
The longest state highway is State Highway 14 with a span of nearly 237 miles (381 km) between Muddy Pass and Sterling. State Highway 110 is the shortest route maintained by CDOT with a span of 0.186 miles (0.299 km). The Colorado Department of Transportation (CDOT) is the agency responsible for maintaining the Colorado State Highway System ...
List of Interstate Highways. There are 71 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 ...
The "0" in its route number indicates that US 20 is a major coast-to-coast route. Spanning 3,365 miles (5,415 km), it is the longest road in the United States, [1] and, in the east, the route is roughly parallel to Interstate 90 (I-90), which is the longest Interstate Highway in the U.S.
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 Paso, Texas) to I ...
In 1966 the new U.S. Interstate Highway System brought official status to most previously unofficial routes in the lower 48 states. The Pan-American Highway[ a ] is a network of roads stretching across the Americas, measuring about 30,000 kilometres (19,000 mi) [ 1 ] in total length.