General Information
Project Type
| Function / usage: |
Road tunnel |
|---|---|
| Structure: |
Tunnel |
Location
| Location: |
Clear Creek County, Colorado, USA |
|---|---|
| For: |
|
| 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 |
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.
Participants
Relevant Web Sites
- About this
data sheet - Structure-ID
20019290 - Published on:
03/02/2006 - Last updated on:
28/05/2021
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