![]() ![]() This section needs additional citations for verification. Kenduskeag Stream in Penobscot County, Maine.West River in West Haven, Connecticut.Acushnet River in the harbor of New Bedford and Fairhaven, Massachusetts.Boston Inner Harbor, Fort Point Channel and South Bay in Boston.Burr Creek in Bridgeport, Connecticut.Park River in Hartford County, Connecticut.Though navigable-in-fact, parts or all of the following have been excluded from the definition by Congress: Passumpsic River and its East Branch to East Haven, Vermont.Nulhegan River, including the East Branch, Black Branch, and Yellow Branch.Moose River from Passumpsic River to the border of Victory, Vermont.Otter Creek to Mile 63.8 in Proctor, Vermont. ![]() Missisquoi River to Mile 88.5 in Lowell, Vermont.Lamoille River to Mile 79 in Greensboro, Vermont.Battenkill River to Mile 50 in Manchester, Vermont.Black River to Mile 25 in Craftsbury, Vermont.Connecticut River to Pittsburg, New Hampshire.Merrimack River to Concord, New Hampshire.Penobscot River to the confluence of the East and West Branch at Medway, Maine.Flowing waters are navigable from the mouth to source, or mouth to specified point, unless otherwise noted. Vermont waters have been surveyed thoroughly, but the other New England states have some waters of indeterminate status. Map of the all-water route from the Mississippi to New York and the eastern Atlantic, 1885 New England district However, all Navigable Waters, plus those considered navigable-in-fact are included in the general "Waters" definition. Note that the "Navigable Waters of the United States" listed in 33 CFR 329 are different than those listed as "Waters of the United States" in 33 CFR 328, which is the Clean Water Rule. Not all waters have had these facts determined, and so are of uncertain status. This determination is made by a combination of waters explicitly listed in the law, and general definitions that mean certain waters might or might not be included depending on various factual determinations (such as being "navigable in fact" and the history of use) by the Army Corps of Engineers. Title 33 of the United States Code and 33 CFR define the "navigable waters of the United States" and apply certain laws and regulations to those waters. Navigable waters included in legal definition Many other eastern rivers are navigable as well, including the Potomac, the Hudson, and the Atchafalaya rivers, which are all dredged by the Army Corps of Engineers. The Mississippi River System is connected to the Illinois Waterway, which continues to the Great Lakes Waterway and then to the Saint Lawrence Seaway. The Lower Mississippi River from Baton Rouge to the Gulf of Mexico allows ocean shipping to connect with the barge traffic, thereby making this segment vital to both the domestic and foreign trade of the United States. The Mississippi River System, including the Gulf Intracoastal Waterway (GIWW), connects Gulf Coast ports, such as Mobile, New Orleans, Baton Rouge, Houston, and Corpus Christi, with major inland ports, including Memphis, Kansas City, St. Most navigable rivers and canals in the United States are in the eastern half of the country, where the terrain is flatter and the climate is wetter. Mountainous terrain and a shortage of water make canals in the West infeasible as well. Also, most large rivers there are dammed, often in multiple places, to supply water for hydroelectricity production and other uses. The steep grades and variable flows of most other West Coast rivers make them unsuitable for large boat travel. The Sacramento and San Joaquin rivers, the Snake River, and the Umpqua River are examples of other West Coast rivers that are dredged for navigation. The river is regularly dredged, and freight barges may reach as far inland as Lewiston, Idaho, through a system of locks however, there are strict draft restrictions beyond the confluence with the Willamette River. The Columbia River is the only river on the West Coast (and arguably the entire North American Pacific coast) that is navigable for a significant length. Much of the commercially important waterways of the United States consist of the Mississippi River System-the Mississippi River and connecting waterways. The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. The inland and intracoastal waterways of the eastern United States ![]()
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