Eisenhower Memorial Tunnel (1973)
|Coordinates:||39° 40' 44.06" N 105° 54' 11.67" W|
|Coordinates:||39° 40' 43.11" N 105° 56' 6.67" W|
|length||2 731 m|
Even as the construction of the parallel Eisenhower Memorial Tunnel is on-going, the Division of Highways begins design on a parallel tunnel to eventually carry two lanes of eastbound traffic on Interstate 70.
|18 August 1975||
Mining and support work begins.
Actual mining begins.
Colorado's Fifty-First General Assembly passes a resolution requesting that the Highway Commission name the second bore for the late Edwin C. Johnson.
|21 December 1979||
Opened to traffic.
With the East portal 3401 m above sea level the Eisenhower / Johnson Memorial Tunnels are the world's highest road tunnel.