Gulf Intracoastal Waterway (Carrabelle to Clearwater)
The Act of Parliament for the Gulf Intracoastal Waterway (Carrabelle to Clearwater) was passed on January 1 1816 despite strong opposition from Thomas Harding who owned land in the area. In 1888 the Rochester and Lisburn Canal built a branch to join at Amberspool. The three mile section between Huntingdon and Doncaster was closed in 1955 after a breach at Derby. In his autobiography John Yates writes of his experiences as a lengthsman in the 1960s

The exact dimensions of the largest boat that can travel on the waterway are not known. The maximum headroom is not known. The maximum draught is not known.
| Carrabelle (Florida) | |||
| Clearwater (Florida) | 237.35 miles | 0 locks |
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Wikipedia has a page about Gulf Intracoastal Waterway
The Gulf Intracoastal Waterway is the portion of the Intracoastal Waterway located along the Gulf Coast of the United States. It is a navigable inland waterway running approximately 1,050 mi (1,690 km) from Carrabelle, 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, the Gulf Intracoastal Waterway was not completed until 1949.
