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Silver Bridge

1928 establishments in Ohio1928 establishments in West Virginia1967 disasters in the United States1967 disestablishments in Ohio1967 disestablishments in West Virginia
1967 in Ohio1967 in West Virginia1969 establishments in Ohio1969 establishments in West VirginiaBridge disasters caused by engineering errorBridge disasters caused by maintenance errorBridge disasters in the United StatesBridges completed in 1928Bridges completed in 1969Bridges of the United States Numbered Highway SystemBridges over the Ohio RiverBuildings and structures in Gallia County, OhioBuildings and structures in Mason County, West VirginiaCantilever bridges in the United StatesChain bridgesFormer road bridges in the United StatesHistoric Civil Engineering LandmarksInterstate vehicle bridges in the United StatesMonuments and memorials in OhioMonuments and memorials in West VirginiaPoint Pleasant, West VirginiaRoad bridges in OhioRoad bridges in West VirginiaSteel bridges in the United StatesSuspension bridges in OhioSuspension bridges in West VirginiaTransport disasters in 1967Transportation disasters in OhioTransportation disasters in West VirginiaTransportation in Mason County, West VirginiaU.S. Route 35
Silver Bridge, 1928
Silver Bridge, 1928

The Silver Bridge was an eyebar-chain suspension bridge built in 1928 which carried U.S. Route 35 over the Ohio River, connecting Point Pleasant, West Virginia, and Gallipolis, Ohio. Officially named the Point Pleasant Bridge, it was popularly known as the Silver Bridge for the color of its aluminum paint. On December 15, 1967, the Silver Bridge collapsed amid heavy rush-hour traffic, resulting in the deaths of 46 people, two of whom were never found. Investigation of the wreckage soon pointed to the failure of a single eyebar in one of the suspension chains as the primary cause — a finding noted in a preliminary report released within 10 months of the collapse. However, to explain why that eyebar failed — a failure triggered by a flaw just 0.1 inches (2.5 mm) deep, which led to a fracture — required significantly more time and effort to uncover, with the final accident report taking three years to complete. The collapse led to significant changes in the way bridges in the U.S. are inspected and maintained. The collapsed bridge was replaced by the Silver Memorial Bridge, which was completed in 1969.

Excerpt from the Wikipedia article Silver Bridge (License: CC BY-SA 3.0, Authors, Images).

Silver Bridge
Point Pleasant Biking & Walking Trail,

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Latitude Longitude
N 38.845 ° E -82.141111111111 °
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Point Pleasant Biking & Walking Trail

Point Pleasant Biking & Walking Trail
25106
West Virginia, United States
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Silver Bridge, 1928
Silver Bridge, 1928
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Kanawha River
Kanawha River

The Kanawha River ( kə-NAW-ə) is a tributary of the Ohio River, approximately 97 mi (156 km) long, in the U.S. state of West Virginia. The largest inland waterway in West Virginia, its watershed has been a significant industrial region of the state since early in the 19th century. It is formed at the town of Gauley Bridge in northwestern Fayette County, approximately 35 mi (56 km) SE of Charleston, by the confluence of the New and Gauley rivers 2 mi upstream from Kanawha Falls. The waterfall is 24 ft high and has been a barrier to fish movement for more than 1 million years.: 13  The river flows generally northwest, in a winding course on the unglaciated Allegheny Plateau, through Fayette, Kanawha, Putnam, and Mason counties, past the cities of Charleston and St. Albans, and numerous smaller communities. It joins the Ohio at Point Pleasant. An environmental overview and summary of natural and human factors affecting water quality in the watershed was published in 2000.Paleo-Indians, the earliest indigenous peoples, lived in the valley and the heights by 10,000 BC as evidenced by archaeological artifacts such as Clovis points. A succession of prehistoric cultures developed, with the Adena culture beginning the construction of numerous skilled earthwork mounds and enclosures more than 2000 years ago. Some of the villages of the Fort Ancient culture survived into the times of European contact. The area was a place of competition among historical American Indian nations. Invading from their base in present-day New York, the Iroquois drove out or conquered Fort Ancient culture peoples, as well as such tribes as the Huron and Conoy. By right of conquest, the Iroquois, Lenape (Delaware), and Shawnee reserved the area as a hunting ground. They resisted European-American settlement during the colonial years. Eventually the settlers took over by right of conquest.