The Houston Ship Channel, in Houston, Texas, is part of the Port of Houston, one of the US's busiest seaports. The channel is the conduit for ocean-going vessels between Houston-area terminals and the Gulf of Mexico, and it serves an increasing volume of inland barge traffic.
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Overview
The channel is a widened and deepened natural watercourse created by dredging Buffalo Bayou and Galveston Bay. Major products, such as petrochemicals and Midwestern grain, are transported in bulk together with general cargo. The original watercourse for the channel, Buffalo Bayou, has its headwaters 30 miles (48 km) to the west of the city of Houston. The navigational head of the channel, the most upstream point to which general cargo ships can travel, is at Turning Basin in east Houston.
The channel has numerous terminals and berthing locations along Buffalo Bayou and Galveston Bay. The major public terminals include Turning Basin, Barbours Cut, and Bayport. Many private docks are there, as well, including the ExxonMobil Baytown Complex and the Deer Park Complex.
The channel, periodically widened and deepened to accommodate ever-larger ships, is 530 feet (160 m) wide by 45 feet (14 m) deep by 50 miles (80 km) long. The islands in the ship channel are part of the ongoing widening and deepening project. The islands are formed from soil pulled up by dredging, and the salt marshes and bird islands are part of the Houston Port Authority's beneficial use and environmental mitigation responsibilities.
The channel has five vehicle crossings: Washburn Tunnel, Sidney Sherman Bridge, Sam Houston Ship Channel Bridge, popularly known as the Beltway 8 Bridge; Fred Hartman Bridge connecting La Porte and Baytown, Texas; and Lynchburg Ferry.
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History
The channel has been used to move goods to the sea since at least 1836. Buffalo Bayou and Galveston Bay were dredged during the late 19th and early 20th centuries to accommodate larger ships. By the mid 1900s the Port of Houston had established itself as the leading port in Texas eclipsing the natural harbors at Galveston and Texas City. The Turning Basin terminal in Harrisburg (now part of Houston) became the port's largest shipping point.
On January 10, 1910, residents of Harris County voted 16 to 1 to fund dredging the Houston ship channel to a depth of 25 feet for the amount of $1,250,000, which was then matched by federal funds. On June 14, 1914 the first deepwater ship, steamship Satilla, arrived at the port of Houston, establishing steamboat service between New York City and Houston. On November 10, 1914, President Woodrow Wilson opened the Houston Ship Channel, part of the Port of Houston. The onset of World War I and the first mechanized war's thirst for oil greatly increased use of the ship channel.
The United States Army Corps of Engineers increased the depth of the channel from 25 to 30 feet in 1922.
In 1933, the United States Department of War and the United States House Committee on Rivers and Harbors approved a plan to increase the depth of the channel from 30 to 34 feet and widen the Galveston Bay section from 250 to 400 feet. The Public Works Administration provided $2,800,000 dollars for the project, which was completed in late 1935.
The proximity to Texas oilfields led to the establishment of numerous petrochemical refineries along the waterway, such as the ExxonMobil Baytown installation on the eastern bank of the San Jacinto River. Now the channel and surrounding area support the second-largest petrochemical complex in the world.
While much of the Houston Ship Channel is associated with heavy industry, two icons of Texas history are also located along its length. The USS Texas (BB-35) saw service during both world wars, and is the oldest remaining example of a dreadnought-era battleship in existence. The nearby San Jacinto Monument commemorates the Battle of San Jacinto (1836) in which Texas won its independence from Mexico.
The US Army's San Jacinto Ordnance Depot was located on the channel from 1941-1964.
Currently, the channel is dredged to a depth of 43-45 feet. The channel was designated a National Civil Engineering Landmark by the American Society of Civil Engineers (ASCE) in 1987.
The "Texas chicken" maneuver is known to mariners who regularly navigate large vessels on the Houston Ship Channel. As two vessels approach from opposite directions, both normally turn to starboard to allow water displaced by their bows to move the ships away from each other and from the channel's centerline. After they pass, the suction of the displaced water flowing in behind the ships naturally pulls them back toward the center of the waterway.
Pollution
On December 25, 2007, the Houston Ship Channel was featured on the CNN Special, Planet in Peril, as a potential polluter of nearby neighborhoods. That year, the University of Texas released a study suggesting that children living within 2 miles (3.2 km) of the Houston Ship Channel were 56% more likely to become sick with leukemia than the national average.
On March 22, 2014, a barge carrying nearly a million gallons of marine fuel oil collided with another ship in the Houston Ship Channel, causing the contents of one of the barge's 168,000-gallon tanks to leak into Galveston Bay.
Source of the article : Wikipedia
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