Gulf Intracoastal Waterway

The Gulf Intracoastal Waterway (GIWW) 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) from Saint Marks, Florida, to Brownsville, Texas.

Gulf Intracoastal Waterway
Leland Bowman Lock near Intracoastal City, Louisiana, on the Gulf Intracoastal Waterway
The route of the Gulf Intracoastal Waterway
LocationGulf Coast of the United States
CountryUnited States
Specifications
Length1,300 miles (2,100 km)
History
Date completedJune 18, 1949 (1949-06-18)
Geography
Start pointBrownsville, Texas
End pointSaint Marks, Florida
Branch ofIntracoastal Waterway
Connects toVarious

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, the Gulf Intracoastal Waterway was not completed until 1949.

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