Hanging Lake Viaduct carries I-70 along the Colorado River through an extremely steep and narrow portion of environmentally sensitive Glenwood Canyon. In addition to providing a design that would protect the environment, traffic flow had to be maintained during construction. The bridges were completed five months ahead of schedule. They were built using a precast segmental concrete box girder design, which met the project requirements for overhead erection, aesthetics and schedule. Winner of seven design awards, including the International Bridge Conference’s 1993 George S. Richardson medal.
"A prime transportation component that enhances drivers’ perceptions of the scale
and beauty of its environment."
1992 Portland Cement Association
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