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Johnson Memorial Tunnel

General Information

Beginning of works: 18 August 1975
Completion: 21 December 1979
Status: in use

Project Type

Structure: Tunnel
Function / usage: Road tunnel

Location

Location: ,
For:
  • Interstate I-70
Part of:
Next to: 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
Show coordinates on a map

Technical Information

Dimensions

length 2 731 m

Chronology

1972

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.

November 1975

Actual mining begins.

January 1978

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.

Notes

With the East portal 3401 m above sea level the Eisenhower / Johnson Memorial Tunnels are the world's highest road tunnel.

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  • About this
    data sheet
  • Structure-ID
    20019290
  • Date created
    03/02/2006
  • Last Update
    16/10/2015