Capacity of a body of water to allow the passage of vessels at a given time
Navigation markers, entrance of Fremantle harbour and the Swan River, Western Australia
A body of water, such as a river, canal or lake, is navigable if it is deep, wide and calm enough for a water vessel (e.g. boats) to pass safely. Navigability is also referred to in the broader context of a body of water having sufficient under keel clearance for a vessel.[1]
Such a navigable water is called a waterway, and is preferably with few obstructions against direct traverse that need avoiding, such as rocks, reefs or trees. Bridges built over waterways must have sufficient clearance. High flow speed may make a channel unnavigable due to risk of ship collisions. Waters may be unnavigable because of ice, particularly in winter or high-latitude regions. Navigability also depends on context: a small river may be navigable by smaller craft such as a motorboat or a kayak, but unnavigable by a larger freighter or cruise ship. Shallow rivers may be made navigable by the installation of locks that regulate flow and increase upstream water level, or by dredging that deepens parts of the stream bed.
^Gilardoni, Eduardo O.; Presedo, Juan P. (2017). Navigation in Shallow Waters. Livingston, Scotland: Witherby Publishing Group. ISBN 978-1-85609-667-6.
river, canal or lake, is navigable if it is deep, wide and calm enough for a water vessel (e.g. boats) to pass safely. Navigability is also referred to in...
Maritime shipping routes cross oceans and seas, and some lakes, where navigability is assumed, and no engineering is required, except to provide the draft...
Navigable aqueducts (sometimes called navigable water bridges) are bridge structures that carry navigable waterway canals over other rivers, valleys,...
tidewater navigable bay and deposited the dredged materials in a navigable arm of the bay called Mason Creek. The dredging destroyed the navigability of Mason...
the canal. The standard used in the European Union for classifying the navigability of inland waterways is the European Agreement on Main Inland Waterways...
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...
2°22′52.2″W / 53.500611°N 2.381167°W / 53.500611; -2.381167 The Worsley Navigable Levels are an extensive series of coal mines in Worsley in the City of...
is thus navigability for commercial purposes, but that is not applicable in the common law provinces. The underlying concept of navigability in law is...
waterfront along Lake Erie and the Delaware River, Pennsylvania has the most navigable rivers of any state in the nation, including the Allegheny, Delaware,...
perpetual federal easement. Neither state has the authority to rescind navigability along the shoreline below the highmark of the waterbody, because it has...
the only major navigable river in Spain. Currently it is navigable from Seville to the Gulf of Cádiz, but in Roman times it was navigable from Córdoba....
a major port on the Black Sea. Due to its strategic location and the navigability of the city's harbours, Sevastopol has been an important port and naval...
The Witham Navigable Drains are located in Lincolnshire, England, and are part of a much larger drainage system managed by the Witham Fourth District...
The Hierarchical Navigable Small World (HNSW) graph is an approximate nearest neighbor search technique used in many vector databases. Nearest neighbor...
kilometres (2,300 miles) navigable all year by craft drawing 0.6 metres (2.0 feet) and another 282 kilometres (175 miles) navigable to craft drawing 1.8 metres...
made to raise the height of the dam in order to enhance the river's navigability and recreational potential, although the suggestion remains controversial...
A ship is a large vessel that travels the world's oceans and other navigable waterways, carrying cargo or passengers, or in support of specialized missions...
or liberty interest. Because a finding of navigability establishes state versus federal property, navigability for purposes of riverbed title is a federal...
The state's rivers are generally small, short and shallow, and few are navigable. The principal ones include the Detroit River, St. Marys River, and St...
port's navigable channel faced a navigability crisis in the late 2000s, which affected the port's normal shipping operations. The navigability crisis...
repetition, while notes on status, navigability or connections are added under the third column heading 'Navigability'. Edwards-May, David (2010). Inland...
true canal is a channel that cuts across a drainage divide, making a navigable channel connecting two different drainage basins. Both navigations and...
trade route in Europe. Today, 2,415 km (1,501 mi) of its total length are navigable. The Danube is linked to the North Sea via the Rhine–Main–Danube Canal...
UN assistance. A UN force (UNEF) was established to maintain the free navigability of the canal, and peace in the Sinai Peninsula. After the 1948 Arab–Israeli...
metres (16,463 ft) above sea level. The world's highest commercially navigable lake is Lake Titicaca in Peru and Bolivia at 3,812 m (12,507 ft). It is...
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