giradman
iPad Fan
Great pics Dave! That bridge is a marvel of engineering. I'm trying to visualize how they went about starting and then adding to it in stages, presumably at both sides at the same time. Seems quite a task. Beautiful and no doubt strong yet seemingly almost a bit fragile in the economy of materials used. Love that last shot of the bridge amongst fog
Hi Andrew - I've been over that bridge a half dozen times (4 lanes) and just looks like a part of the road from a car - those not in the know have no idea that there is nearly a 1000 ft. drop to the New River below their wheels.
Construction of the bridge was done from the side piers first, then the arch was put in placed followed by the horizontal segments - trolleys running on cables strung across the gorge were the means of moving these gigantic pieces into place - all explained and illustrated in the Visitor's Center - a quote below from the National Park Service) - if interested, go to the bottom on that page and click on the 'Bridge Construction' link to view a photo gallery. Below a pic of the > 3000 ft. road of the bridge (again, no idea 'what' lies below!) & a couple of images from the link during construction - notice the trolleys. Dave
.The West Virginia Division of Highways chose the Michael Baker Company as the designer, and the construction contract was awarded to the American Bridge Division of U.S. Steel. In June 1974, the first steel was positioned over the gorge by trolleys running on three-inch diameter cables. The cables were strung 3,500 feet between two matching towers. Cor-ten steel, with a rust-like appearance that never needs painting, was used in construction.