The Linn Cove Viaduct, the first bridge of its type in the United States, was built using design and construction techniques developed in Europe. Its S-shaped structure contains 153 concrete segments, only one of which is straight. Each segment weighs 50 tons, and joined by epoxy and massive steel tendons, they form a deck nearly one-quarter mile long supported by seven piers. Computer technology enabled engineers to design and construct this geometrically complex structure. The technique used to build the viaduct preserved the rugged terrain and the forest of this ancient mountain, whereas conventional construction methods would have obliterated Linn Cove's massive boulder field and severely altered the steep mountain profile.

Photo: Cosmos Mariner

Photo: Cosmos Mariner

Photo: Cosmos Mariner

Photo: Cosmos Mariner

Photo: Anonymous

Photo: Anonymous

Photo: Cosmos Mariner

Grandfather, North Carolina · USA