Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunneled sections facilitate construction of first roadway up historic Clear Creek Canyon to shorten and improve strategic trans-continental route west of Dever, Colo; highway replaces part of transcontinental route No 40, reducing distance between Golden and Idaho Springs by 6 mi and eliminating dangerous grades and curves; blasting practice.
Tunneled sections facilitate construction of first roadway up historic Clear Creek Canyon to shorten and improve strategic trans-continental route west of Dever, Colo; highway replaces part of transcontinental route No 40, reducing distance between Golden and Idaho Springs by 6 mi and eliminating dangerous grades and curves; blasting practice.
Canyon highway tunnel
Explosives Engr
Wells, T.L. (Autor:in)
Explosives Engineer ; 20
1942
3 pages
Aufsatz (Zeitschrift)
Englisch
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