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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 11,158 ...
At the time of dedication, this tunnel was the highest vehicular tunnel in the world, at 11,158 feet (3,401 m). [12] As of 2010, the facility was still the highest vehicular tunnel in the US. [6] The Eisenhower Tunnel is noted as both the longest mountain tunnel and the highest point on the Interstate Highway System. [12]
Eisenhower Tunnel [l] 11,158 feet 3,401 m 7.0% EB 6.0% WB: Concrete Shrine Pass: 11,089 feet 3,380 m [k] ...
When the Eisenhower Tunnel opened in March 1973, it allowed motorists on Interstate 70 (I-70) to avoid crossing the pass directly. Trucks that cannot pass through the tunnel (those carrying hazardous materials and those over 13 feet 11 inches (4.24 m) in height) must still take US 6 across Loveland Pass, 800 vertical feet (240 m) above the ...
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 I-695 and Maryland Route 570 (MD 570) in Woodlawn, just outside Baltimore, Maryland. I-70 approximately traces the path of U.S. Route 40 (US 40; the old National Road) east of the Rocky Mountains.
The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Highway System in the United States. The system extends throughout the contiguous United States and has ...
The railroad tunnel is 24 feet (7.3 m) high, 18 feet (5.5 m) wide, and 6.2 miles (10.0 km) long. The apex of the tunnel is at 9,239 feet (2,816 m) above sea level. The tunnel has a gradient of 1 in 125 (0.8%). [3] As of 1989, the Moffat was the fourth-longest railroad tunnel in North America.
Janet Petra Bonnema (November 24, 1938 – May 9, 2008) [1] was an American civil engineer and women's rights activist. She was hired as an engineering technician for the Eisenhower Tunnel construction project in Colorado in 1970, but was barred from performing her work inside the tunnel due to the prevailing superstition that women who went underground in tunnels or mines brought bad luck ...