![]() ![]() Copyright © National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Proceeding of a conference conducted by the Transportation Research Board, September 25-27, 1978.Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. This paper appeared in Transportation Research Record No. The New River Gorge Bridge is the worlds fifth-longest single arch bridge and was opened on October 22, 1977.Find a library where document is available.The 34-million-dollar structure will be a major link in West Virginia's Appalachian Corridor "L" Expressway System. Construction of the arch across the gorge proceeded from both sides simultaneously utilizing the unique tieback system to support the cantilevered arch truss halves. The height of the structure, 267 m (876 feet) above the river, and the heavy member weights dictated the use of a twin 1,067-m (3,500-foot)-cableway system. ![]() Erection of the steelwork presented a tremendous challenge. The computer made it possible to determine the most economical configuration for the main arch, and it was used to study many complicated loading and erecting conditions. The computer was a major tool in both the design and erection of the bridge. Special methods were employed to provide for subsurface stabilization where support bents were located in the proximity of mined-out areas. Surface conditions in the coal mining region presented problems during foundation design. The New River Gorge Bridge is a steel arch bridge 3030 feet long over the New River Gorge near Fayetteville in the Appalachian Mountains of the Eastern. By using a high-strength, corrosion-resistant steel, the weight of the structure was kept to a minimum with the added benefit of maintenance-free steelwork blending with the surrounding rugged terrain. The final decision to build a steel arch was based on a combination of cost and aesthetic considerations. Despite its scenic beauty, the New River Gorge was a major obstacle. For years, to cross the New River Gorge, drivers were forced to take a 40-mile detour or carefully wind down narrow mountain roads. During the preliminary design stages, various bridge types were considered. New River Gorge Bridge Fayetteville, West Virginia The New River carves a deep gorge through southern West Virginia. The overall length of the structure is 923.6 m (3,030 feet), with the main arch spanning a distance of 518.2 m (1,700 feet). The world's longest steel arch bridge, spanning the New River Gorge in West Virginia, was opened to traffic on October 22, 1977. THE DESIGN AND CONSTRUCTION OF THE NEW RIVER GORGE BRIDGE ![]()
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