TECHNICAL PAPERS
May 1, 1983
Glenwood Canyon I‐70: Environmental Concern
Publication: Journal of Transportation Engineering
Volume 109, Issue 3
Abstract
Environmental concerns and physical constraints involved in the design of Interstate 70 through Glenwood Canyon, a scenic river gorge in Colorado, resulted in a design approach unique for highway projects. The Highway Act of 1976, which allowed variance from interstate standards, led to a complex and lengthy process to develop a functional and environmentally acceptable design solution. The design process is examined and several elements of the design solution are described, including terraced roadways, cantilevered roadways, retaining walls, tunnels, and a comprehensive revegetation program. The unique design process has resulted in an environmentally sensitive highway design, but the delay in implementation significantly increased the cost of the project.
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Copyright © 1983 ASCE.
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Published online: May 1, 1983
Published in print: May 1983
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Ralph J. Trapani
Project Mgr., Colorado Dept. of Highways, Glenwood Springs, Colo. 81601
Eric A. Beal, Members, ASCE
Mgr., Denver Office, De Leuw, Cather & Co., 234 Columbine Street, Denver, Colo. 80206
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