Glenwood Canyon 12 Years Later

Nearly 12 years have passed since the Colorado Department of Transportation (CDOT) completed one of the most extraordinary highway projects ever constructed in the United States. Opened to traffic on October 14, 1992, the Glenwood Canyon project, a 20-kilometer (12.5-mile)-long network of viaducts, bridges, and tunnels constructed through an extraordinarily narrow, environmentally sensitive gorge in western Colorado, marked a milestone in the Nation's transportation history The project not only connected the final leg of Interstate 70 (1-70), but also it symbolized the completion of the original U.S. interstate highway system. Upon completion, the Glenwood Canyon project was revered for ac-complishments in planning, context-sensitive design, work zone traffic safety and management, and construction-achieved' despite numerous physical, operational, and administrative obstacles faced during construction. The project won more than 30 awards, including the 1993 Outstanding Civil Engineering Achievement Award from the American Society of Civil Engineers