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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.
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 ...
The Eisenhower Tunnel, with a maximum elevation of 11,158 feet (3,401 m) and length of 1.7 miles (2.7 km), is the longest mountain tunnel and highest point along the Interstate Highway System. The portion through Glenwood Canyon was completed on October 14, 1992.
Eisenhower-Johnson Memorial Tunnel, twin tunnels, Interstate 70 under the Continental Divide near Loveland Pass northeast of Dillon; Hagerman Tunnel, abandoned rail tunnel, Colorado Midland Railway, under the Continental Divide near Hagerman Pass; Hanging Lake Tunnel, twin tunnels, Interstate 70 and US 6, Glenwood Canyon project, east of ...
Eisenhower Tunnel; G. George Wallace Tunnel; H. Haneda Tunnel; K. Kinuura Tunnel; L. Lieråsen Tunnel This page was last edited on 12 August 2020, at 17:44 (UTC). ...
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. [4] The Eisenhower Tunnel is the highest point along the Interstate Highway System, with an elevation of 11,158 feet (3,401 m).
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] ...
The tunnel took 48 months to bore; the average daily progress was 21 feet (6.4 m). The first train passed through the tunnel in February 1928. Although the original cost of the tunnel was pegged at $6.62 million, final assessments collected by the Moffat Tunnel district, including interest, were $23,972,843.