Tenbridge
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Tenbridge is a vertical-lift
railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...
bridge over the
Tennessee River The Tennessee River is the largest tributary of the Ohio River. It is approximately long and is located in the southeastern United States in the Tennessee Valley. The river was once popularly known as the Cherokee River, among other names, ...
in
Chattanooga, Tennessee Chattanooga ( ) is a city in and the county seat of Hamilton County, Tennessee, United States. Located along the Tennessee River bordering Georgia, it also extends into Marion County on its western end. With a population of 181,099 in 2020, ...
. It has a main span of . The original span was a swing span with a center pivot that was originally built in ca. 1879/1880. It was replaced by a vertical lift span in 1917, but the lift towers and machinery were not installed until 1920. It remains a very busy crossing on the
Cincinnati, New Orleans and Texas Pacific Railway The Cincinnati, New Orleans and Texas Pacific Railway (abbreviated: CNO&TP; ) is a railroad that leases the Cincinnati Southern Railway from Cincinnati, Ohio, south to Chattanooga, Tennessee, and sub leases it to the Norfolk Southern Railway sys ...
, a major subsidiary of the
Norfolk Southern Railway The Norfolk Southern Railway is a Class I freight railroad in the United States formed in 1982 with the merger of Norfolk and Western Railway and Southern Railway. With headquarters in Atlanta, the company operates 19,420 route miles (31 ...
. The bridge carries two mainline tracks across the river. The bridge is one of only three known nesting locations in
Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th ...
for
peregrine falcon The peregrine falcon (''Falco peregrinus''), also known as the peregrine, and historically as the duck hawk in North America, is a Cosmopolitan distribution, cosmopolitan bird of prey (Bird of prey, raptor) in the family (biology), family Falco ...
s, a Tennessee
endangered species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...
.


Sources

* {{coord, 35.1045, -85.2335, display=title Railroad bridges in Tennessee Bridges completed in 1920 Vertical lift bridges in the United States Norfolk Southern Railway bridges Southern Railway (U.S.) Bridges in Chattanooga, Tennessee Bridges over the Tennessee River Towers in Tennessee