Gulf Intracoastal Waterway | |
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![]() Leland Bowman Lock near Intracoastal City, Louisiana, on the Gulf Intracoastal Waterway | |
![]() The route of the Gulf Intracoastal Waterway | |
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Location | Gulf Coast of the United States |
Country | United States |
Specifications | |
Length | 1,300 [1] miles (2,100 km) |
History | |
Date completed | June 18, 1949 |
Geography | |
Start point | Brownsville, Texas |
End point | Saint Marks, Florida [2] |
Branch of | Intracoastal Waterway |
Connects to | Various |
The Gulf Intracoastal Waterway (GIWW [1] ) is the portion of the Intracoastal Waterway located along the Gulf Coast of the United States. It is a navigable inland waterway running approximately 1,300 mi (2,100 km) [1] from Saint Marks, Florida, to Brownsville, Texas.
The waterway provides a channel with a controlling depth of 12 ft (3.7 m), designed primarily for barge transportation. Although the U.S. government proposals for such a waterway were made in the early 19th century, [3] the Gulf Intracoastal Waterway was not completed until 1949. [4]
Locations along the Gulf Intracoastal Waterway are defined in terms of statute miles (as opposed to nautical miles, in which most marine routes are measured) east and west of Harvey Lock, a navigation lock in the New Orleans area located at 29°54′32″N90°05′02″W / 29.909°N 90.084°W . The Hathaway Bridge in Panama City, Florida, for example, is at mile 284.6 EHL (East of Harvey Lock). The Queen Isabella Causeway Bridge at South Padre Island is at mile 665.1 WHL (West of Harvey Lock). [5]
The Gulf Intracoastal Waterway crosses or meets, and in some cases is confluent with, numerous other navigable rivers and waterways. They include:
Many of the busiest ports in the United States in terms of tons of cargo [6] are located on or near the Gulf Intracoastal Waterway. Notable ports on or near the waterway include:[ needs update ]
Florida
Alabama
Mississippi
Louisiana
Texas
The Neches River begins in Van Zandt County west of Rhine Lake and flows for 416 miles (669 km) through the piney woods of east Texas, defining the boundaries of 14 counties on its way to its mouth on Sabine Lake near the Rainbow Bridge. Two major reservoirs, Lake Palestine and B. A. Steinhagen Reservoir are located on the Neches. The Angelina River is a major tributary with its confluence at the north of Lake B. A. Steinhagen. Tributaries to the south include Village Creek and Pine Island Bayou, draining much of the Big Thicket region, both joining the Neches a few miles north of Beaumont. Towns and cities located along the river including Tyler, Lufkin, and Silsbee, although significant portions of the Neches River are undeveloped and flow through protected natural lands. In contrast, the lower 40 miles of the river are a major shipping channel, highly industrialized, with a number of cities and towns concentrated in the area including Beaumont, Vidor, Port Neches, Nederland, Groves, and Port Arthur.
The Intracoastal Waterway (ICW) is a 3,000-mile (4,800 km) inland waterway along the Atlantic and Gulf of Mexico coasts of the United States, running from Massachusetts southward along the Atlantic Seaboard and around the southern tip of Florida, then following the Gulf Coast to Brownsville, Texas. Some sections of the waterway consist of natural inlets, saltwater rivers, bays, and sounds, while others are artificial canals. It provides a navigable route along its length without many of the hazards of travel on the open sea.
Sabine Lake is a bay on the Gulf coasts of Texas and Louisiana, located approximately 90 miles (140 km) east of Houston and 160 miles (260 km) west of Baton Rouge, adjoining the city of Port Arthur. The lake is formed by the confluence of the Neches and Sabine Rivers and connects to the Gulf of Mexico through Sabine Pass. It forms part of the Texas–Louisiana border, falling within Jefferson and Orange Counties in Texas and Cameron Parish, Louisiana.
Southeast Texas is a cultural and geographic region in the U.S. state of Texas, bordering Southwest Louisiana and its greater Acadiana region to the east. Being a part of East Texas, the region is geographically centered on the Greater Houston and Beaumont–Port Arthur metropolitan statistical areas with a combined population of 7,662,325 according to the 2020 U.S. census.
The Mississippi River–Gulf Outlet Canal is a 76 mi (122 km) channel constructed by the United States Army Corps of Engineers at the direction of Congress in the mid-20th century that provided a shorter route between the Gulf of Mexico and New Orleans' inner harbor Industrial Canal via the Intracoastal Waterway.
The Industrial Canal is a 5.5-mile (8.9 km) waterway in New Orleans, Louisiana, United States. The waterway's proper name, as used by the U.S. Army Corps of Engineers and on NOAA nautical charts, is Inner Harbor Navigation Canal (IHNC). The more common "Industrial Canal" name is used locally, both by commercial mariners and by landside residents.
The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. Much of the commercially important waterways of the United States consist of the Mississippi River System—the Mississippi River and connecting waterways.
The Port of Lake Charles is an industrial port based in the city of Lake Charles, Louisiana, U.S.A. It is a major employer in Lake Charles. It is the twelfth-busiest port in the United States according to the American Association of Port Authorities U.S. Port Ranking by Cargo Tonnage, 2013 report and the 83rd-busiest in the world in terms of tonnage according to the American Association of Port Authorities World Port Rankings 2013 report. According to Benchmarkia's Industrial Park Ranking, Port of Lake Charles is ranked as the fifth-largest industrial park in the world by total area. The Calcasieu Ship Channel provides direct access to the Gulf of Mexico, 34 miles downstream from the city docks. The ship channel intersects the Gulf Intracoastal Waterway just north of Calcasieu Lake. The Ship Channel has a project depth of 40 feet and a bottom width of 400 feet.
The Port of Beaumont is a deep-water port located in Beaumont, Texas near the mouth of the Neches River.
The Inner Harbor Navigation Canal Lock—commonly known as Industrial Canal Lock or simply Industrial Lock—is a navigation lock in New Orleans. It connects the Lower Mississippi River to the Industrial Canal and other sea-level waterways. Because it is shorter and narrower than most modern locks on the Mississippi River System, the 1920s vintage lock has become a bottleneck between the nation's two highest-tonnage waterways—the Mississippi and the Gulf Intracoastal Waterway.
Louisiana Highway 82 (LA 82) is a state highway located in southern Louisiana. It runs 142.87 miles (229.93 km) in a general east–west direction from the Texas state line east of Port Arthur to the Vermilion–Lafayette parish line southwest of Youngsville.
The Great Loop is a system of waterways that encompasses the eastern portion of the United States and part of Canada. It is made up of both natural and man-made waterways, including the Atlantic and Gulf Intracoastal Waterways, the Great Lakes, the Erie Canal, and the Mississippi and Tennessee-Tombigbee Waterway. The entire loop stretches about 6,000 miles (9,700 km).
The Schooner Bayou Control Structure is a flood control structure located in Vermilion Parish, Louisiana, and operated by the U.S. Army Corps of Engineers. It is part of the Mississippi Valley Division, New Orleans District, which encompasses the southern half of the state of Louisiana.
Water Resources Development Act of 1976,, Pub. L. 94–587 is a public law enacted on October 22, 1976, by the Congress of the United States of America concerning various water resources and projects.
The Calcasieu Ship Channel is a waterway that connects the city of Lake Charles, Louisiana, with the Gulf of Mexico. Its existence allows the Port of Lake Charles, which is more than 30 miles from the Gulf, to be the 10th largest seaport in the United States. The primary use of the channel is the importation of materials for processing in Lake Charles' large refinery industry, including petroleum, liquefied natural gas, and the export of refined products, such as gasoline and chemicals.
The Inner Harbor Navigation Canal Lake Borgne Surge Barrier is a storm surge barrier constructed near the confluence of and across the Gulf Intracoastal Waterway (GIWW) and the Mississippi River Gulf Outlet (MRGO) near New Orleans. The barrier runs generally north-south from a point just east of Michoud Canal on the north bank of the GIWW and just south of the existing Bayou Bienvenue flood control structure.
The Gulf Intracoastal Waterway West Closure Complex is a part of the New Orleans Drainage System; it consists of a navigable floodgate, a pumping station, flood walls, sluice gates, foreshore protection, and an earthen levee. The complex was designed to reduce risk for residences and businesses in the project area from a storm surge associated with a tropical event, with an intensity that has a one percent chance of occurring in any given year. This project was operated for the first time on August 29, 2012, in response to Hurricane Isaac.
The Sabine–Neches Waterway is located in southeast Texas and Calcasieu Parish, Louisiana, United States. The waterway includes parts of the Neches River, Sabine River, Sabine Lake, and Taylor Bayou. The waterway ranks as third-busiest waterway in the U.S. in terms of cargo tonnage, according to the American Association of Port Authorities. It also ranks as the top bulk liquid cargo waterway, the top U.S. crude-oil importer, and is projected to become the largest LNG exporter in the United States. The Gulf Intracoastal Waterway crosses the waterway near Port Arthur.
The Jefferson Seaway was a proposed deep-draft ship channel to be created in Jefferson Parish, Louisiana, that would establish a route between the Mississippi River at Westwego and the Gulf of Mexico near Grand Isle. The Mississippi River provided the only deep-water access to New Orleans and its neighboring ports. In the mid-20th century, the creation of alternate routes was considered, including the Mississippi River-Gulf Outlet (MR-GO), which was ultimately selected, funded and constructed. The Jefferson Seaway, sometimes referred to as the Arrow to the Americas, the Mississippi Valley Seaway Canal, the Tidewater Ship Canal and the Barataria Canal, was also under consideration but ultimately was never constructed as a deep-draft channel.