44 east st louis traffic11/21/2023 The speed limit in this section is 50 mph (80 km/h), due to the limited sight distance and sharp corners. Much of the highway is elevated above the Colorado River. The difficulties in building the road in the canyon were compounded by the fact the Denver & Rio Grande Western Railroad occupied the south bank, and many temporary construction projects took place to keep US 6 open, at the time the only east–west road in the area. Construction was delayed for many years due to environmental concerns. This stretch was completed in 1992 and was an engineering marvel, due to the extremely difficult terrain and narrow space in the canyon, which requires corners that are sharper than normal Interstate standards. The last section of I-70 to be completed was the 15-mile (24 km) Glenwood Canyon. Here I-70 serves the Grand Junction metro area before traversing more mountainous terrain. From Green River to the Colorado state line, I-70 follows the southern edge of the Book Cliffs.Įntering from Utah, I-70 descends into the Grand Valley, where it meets the Colorado River, which provides its path up the western slope of the Rocky Mountains. Most of the exits in this span are rest areas, brake check areas, and runaway truck ramps with few traditional freeway exits. If the swell is granted this status, it arguably would be the first time a national park owes its existence to an Interstate Highway. The swell has since been nominated for national park or national monument status on multiple occasions. Since I-70's construction, the swell has been noted for its desolate beauty. Although opened in 1970, this section was not formally complete until 1990, when a second steel arch bridge spanning Eagle Canyon was opened to traffic. It also became the longest piece of Interstate Highway to be opened at one time. Once this 108-mile (174 km) section was opened to traffic in 1970, it became the longest stretch of Interstate Highway with no services and the first highway in the US built over a completely new route since the Alaska Highway. Prior to the construction of I-70, the swell was inaccessible via paved roads and relatively undiscovered. I-70 passes through Spotted Wolf Canyon at the eastern edge of the San Rafael Swell. Upon leaving the valley near Salina, I-70 crosses the 7,923-foot (2,415 m) Salina Summit and then crosses a large geologic formation called the San Rafael Swell. The second town with more than a few hundred people served by I-70 is Salina. Heading east, I-70 crosses between the Tushar and Pahvant ranges via Clear Creek Canyon and descends into the Sevier Valley, where I-70 serves Richfield, one of two towns of more than a few hundred people along I-70's path in Utah. I-70 begins at an interchange with I-15 near Cove Fort. The Eisenhower Tunnel is the highest point along the Interstate Highway System, with an elevation of 11,158 feet (3,401 m). The construction of I-70 in Colorado and Utah is considered an engineering marvel, as the route passes through the Eisenhower Tunnel, Glenwood Canyon, and the San Rafael Swell. The Federal Highway Administration (FHWA) has claimed the section of I-70 through Glenwood Canyon, Colorado, completed in 1992, to be the last piece of the Interstate Highway System, as originally planned, to open to traffic. The sections of the Interstate in Missouri and Kansas have laid claim to be the first Interstate in the United States. Louis, Indianapolis, Columbus, Pittsburgh, and Baltimore. The Interstate runs through or near many major cities, including Denver, Topeka, Kansas City, St. West of the Rockies, the route of I-70 was derived from multiple sources. Route 40 (US 40, the old National Road) east of the Rocky Mountains. I-70 approximately traces the path of U.S. Interstate 70 ( I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland. Utah, Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Pennsylvania, Maryland
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