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A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. [5] [6] Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world.
Simple suspension bridge: the earliest known type of suspension bridge, and usually a footbridge. The deck is flexible and lies on the main cables, which are anchored to the earth. Underspanned suspension bridge: an early 19th-century descendant of the simple suspension bridge. The deck is raised on posts above the main cables.
Development of wire cable suspension bridges dates to the temporary simple suspension bridge at Annonay built by Marc Seguin and his brothers in 1822. It spanned only 18 m. [7] However, simple suspension bridge designs were made largely obsolete by the 19th century invention and patent of the suspended deck bridge by James Finley. [9]
"View of the Chain Bridge invented by James Finley Esq." The Port Folio, June 1810, William Strickland, delineator. [2] The Chain Bridge at Falls of Schuylkill, an iron-chain suspension bridge designed by James Finley, was built at Falls of Schuylkill in 1808. [3] It was among the earliest suspension bridges erected in the United States.
Roebling's Delaware Aqueduct, also known as the Roebling Bridge, is the oldest existing wire suspension bridge in the United States. [1] It runs 535 feet (163 meters) over the Delaware River , from Minisink Ford, New York , to Lackawaxen, Pennsylvania .
There is also what is sometimes called a "semi-suspension" bridge, of which the Ferry Bridge in Burton-upon-Trent is the only one of its kind in Europe. [37] The longest suspension bridge in the world is the 4,608 m (15,118 ft) 1915 Çanakkale Bridge in Turkey. Cable-stayed bridge: Cable-stayed bridges, like suspension bridges, are held up by ...
Today, her early suspension bridge design has paved the way for modern infrastructure, and her ideas formed the baseline to be built upon. The Clifton Suspension Bridge would not exist without Sarah Guppy, and her modesty to not take full credit because of her passion to make a positive change for the world.
The Chushul Chakzam (Tibetan: ཆུ་ཤུལ་ལྕགས་ཟམ), or simply Chakzam which literally means "iron bridge" in Standard Tibetan, was a suspension bridge that spanned the Yarlung Tsangpo river in modern-day Qüxü County near Lhasa, Tibet. It was built in 1430 by Thang Tong Gyalpo. [3]