Turning basin

Last updated

A turning basin, [1] winding basin or swinging basin is a wider body of water, either located at the end of a ship canal or in a port to allow cargo ships to turn and reverse their direction of travel, or to enable long narrow barges in a canal to turn a sharp corner.

Contents

For a complete 180-degree turnaround, the width of the basin must be more than the length of the longest vessel normally traversing the waterway. Onboard bow thrusters or tugboats may assist in manoeuvering the ship.

Turning basin in the port of Gdynia, Poland Turning basin Gdynia.jpg
Turning basin in the port of Gdynia, Poland

In seaports the turning basins is often not a real physical basin, but a designated area in the harbour basin where turning is possible and mooring is prohibited. In the example from Gdynia the plan is to enlarge the existing turning basin by removing a part of an existing quay (shown in red in the image).

Dimensions

PIANC guideline 141 [2] recommends a turning basin diameter for channels of 1.2 times the ship's length; in China, twice the ship's length is used. For seagoing vessels, PIANC guideline 121 [3] recommends a diameter of 2 times the ship's length if tug assistance is present. Without tugboats, three times the ship's length is recommended. The Spanish guidelines for turning basins for seagoing vessels [4] provide very specific dimensions for different types of manoeuvres that may occur at a turning basin in a seaport.

Examples

KSC-107-Rollout1.jpg
The Pegasus barge docked in the turning basin beside the Vehicle Assembly Building at the Kennedy Space Center
Turning Basin on the Nottingham Canal - geograph.org.uk - 948616.jpg
The Nottingham Canal turns at right-angles at this point, so this basin was built to allow narrowboats to negotiate the turn.
Seyboldcanal.jpg
The Seybold Canal's turning basin for smaller pleasure craft in Miami, Florida

Related Research Articles

<span class="mw-page-title-main">Barge</span> Flat-bottomed watercraft for transport of bulk goods

Barge often refers to a flat-bottomed inland waterway vessel which does not have its own means of mechanical propulsion. The first modern barges were pulled by tugs, but on inland waterways, most are pushed by pusher boats, or other vessels. The term barge has a rich history, and therefore there are many other types of barges.

<span class="mw-page-title-main">Forth and Clyde Canal</span> Canal crossing central Scotland

The Forth and Clyde Canal is a canal opened in 1790, crossing central Scotland; it provided a route for the seagoing vessels of the day between the Firth of Forth and the Firth of Clyde at the narrowest part of the Scottish Lowlands. This allowed navigation from Edinburgh on the east coast to the port of Glasgow on the west coast. The canal is 35 miles (56 km) long and it runs from the River Carron at Grangemouth to the River Clyde at Bowling, and had an important basin at Port Dundas in Glasgow.

<span class="mw-page-title-main">Waterway</span> Any navigable body of water

A waterway is any navigable body of water. Broad distinctions are useful to avoid ambiguity, and disambiguation will be of varying importance depending on the nuance of the equivalent word in other ways. A first distinction is necessary between maritime shipping routes and waterways used by inland water craft. Maritime shipping routes cross oceans and seas, and some lakes, where navigability is assumed, and no engineering is required, except to provide the draft for deep-sea shipping to approach seaports (channels), or to provide a short cut across an isthmus; this is the function of ship canals. Dredged channels in the sea are not usually described as waterways. There is an exception to this initial distinction, essentially for legal purposes, see under international waters.

<span class="mw-page-title-main">Tugboat</span> Boat that maneuvers other vessels by pushing or towing them

A tugboat or tug is a marine vessel that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These boats typically tug ships in circumstances where they cannot or should not move under their own power, such as in crowded harbors or narrow canals, or cannot move at all, such as barges, disabled ships, log rafts, or oil platforms. Some are ocean-going, and some are icebreakers or salvage tugs. Early models were powered by steam engines, which were later superseded by diesel engines. Many have deluge gun water jets, which help in firefighting, especially in harbours.

<span class="mw-page-title-main">Chesapeake & Delaware Canal</span> United States historic place

The Chesapeake & Delaware Canal is a 14-mile (22.5 km)-long, 450-foot (137.2 m)-wide and 35-foot (10.7 m)-deep ship canal that connects the Delaware River with the Chesapeake Bay in the states of Delaware and Maryland in the United States.

<span class="mw-page-title-main">Merchant ship</span> Civilian boat or ship that transports cargo or carries passengers for hire

A merchant ship, merchant vessel, trading vessel, or merchantman is a watercraft that transports cargo or carries passengers for hire. This is in contrast to pleasure craft, which are used for personal recreation, and naval ships, which are used for military purposes.

<span class="mw-page-title-main">Oder–Havel Canal</span>

The Oder–Havel Canal is a German canal built between 1908 and 1914, originally known as the Hohenzollern Canal, mostly replacing the Finow Canal. Together with Hohensaaten-Friedrichsthaler Wasserstraße, the Oderhaltung and the Schwedter Querfahrt it forms the Havel-Oder-Wasserstraße. It runs from the town of Cedynia near the city of Szczecin on the Oder River between Germany and Poland to the Havel, a tributary of the Elbe, near Berlin. It is 82.8 kilometres (51.4 mi) long, and 33 metres (36 yd) wide.

<span class="mw-page-title-main">Newry Canal</span> Canal in Northern Ireland, United Kingdom.

The Newry Canal is an abandoned canal in Northern Ireland. Opened in 1742, it was built to link the Tyrone coalfields to the Irish Sea. The navigable route ran from Lough Neagh via the Upper Bann river to Portadown, then approximately 20 miles from Portadown via the canal proper to Newry, terminating in the Albert Basin.

<span class="mw-page-title-main">Cape May Canal</span>

The Cape May Canal is a 2.9-nautical-mile waterway connecting Cape May Harbor to the Delaware Bay, at the southern tip of Cape May County, New Jersey. There is a long history of unfulfilled plans for a canal across Cape May. The canal was finally constructed by the United States Army Corps of Engineers during World War II to provide a protected route to avoid German U-boats operating off Cape May Point and to become part of the Intracoastal Waterway. The canal was dredged as a wartime emergency measure in 1942 and was the final link in a protected waterway intended to allow coastal shipping to travel along the coast with a greatly reduced risk of attack from German submarines.

<span class="mw-page-title-main">Port of Ghent</span> Port in Belgium

The Port of Ghent is the third busiest seaport in Belgium, located in Ghent, East Flanders in the Flemish Region. The first port of Ghent was situated at the river Scheldt and later on at the Leie. Since the Middle Ages Ghent has sought for a connection to the sea. In the 13th century via the Lieve canal to the Zwin near Damme, in the 16th century via the Sassevaart, in the 17th century via the Ghent–Bruges canal. Since the 19th century, the Ghent–Terneuzen Canal connects the port via the Western Scheldt to the North Sea. The port of Ghent is accessible by ships of the Panamax size, and in February 2015 the construction of a new lock at Terneuzen was announced, which will maintain near-parity with those of the Panama Canal expansion project.

<span class="mw-page-title-main">Elbląg Canal</span>

Elbląg Canal is a canal in Poland, in Warmian-Masurian Voivodeship, 80.5 kilometres (50.0 mi) in length, which runs southward from Lake Drużno, to the river Drwęca and lake Jeziorak. It can accommodate small vessels up to 50 tonnes displacement. The difference in water levels approaches 100 metres (330 ft), and is overcome using locks and a system of inclined planes between lakes.

<span class="mw-page-title-main">Fender (boating)</span> Element protecting the hull of a ship

In boating, a fender is an air-filled ball or a device in other shape and material used to absorb the kinetic energy of a boat or vessel berthing against a jetty, quay wall or other vessel. Fenders, used on all types of vessels, from cargo ships to cruise ships, ferries and personal yachts, prevent damage to vessels and berthing structures. To do this, fenders have high energy absorption and low reaction force. Fenders are typically manufactured out of rubber, foam elastomer or plastic. Rubber fenders are either extruded or made in a mold. The type of fender that is most suitable for an application depends on many variables, including dimensions and displacement of the vessel, maximum allowable stand-off, berthing structure, tidal variations and other berth-specific conditions. The size of the fender unit is based on the berthing energy of the vessel which is related to the square of the berthing velocity.

<span class="mw-page-title-main">Port of Caen</span>

The Port of Caen is the harbour and port authority of the Norman city of Caen, France.

<span class="mw-page-title-main">Henrichenburg boat lift</span>

The Henrichenburg boat lift facilitates a change in elevation of the Dortmund-Ems-Kanal in Waltrop-Oberwiese. The boat lift is part of the Waltrop Lock Park (Schleusenpark), which includes the old Henrichenburg boat lift built in 1899, a disused shaft lock from 1912, the new boat lift built in 1962 and a modern ship lock from 1989.

<span class="mw-page-title-main">Canal de l'Ourcq</span> Canal in northeastern France

The Canal de l'Ourcq is a 108.1 km (67.2 mi) long canal in the Île-de-France region with 10 locks. It was built at a width of 3.20 m (10.5 ft) but was enlarged to 3.7 m (12 ft), which permitted use by more pleasure boats. The canal begins at Port-aux-Perches near the village of Troesnes, where it splits from the channeled river Ourcq, and flows to the Bassin de la Villette, where it joins the Canal Saint-Martin. Paris requires 380,000 cubic metres of water daily for cleaning the sewer system, gutters, and parks. The Canal de l'Ourcq provides about half of the requirement. Since 1983, the waterway has been designated for use by pleasure craft, and its water is designated for non-drinking uses.

<span class="mw-page-title-main">Canal basin</span> Waterway alongside or at the end of a canal

A canal basin is an expanse of waterway alongside or at the end of a canal, and wider than the canal, constructed to allow boats to moor or unload cargo without impeding the progress of other traffic, and to allow room for turning, thus serving as a winding hole. For inland waterways, a basin may be thought of as a land-locked harbour.

<span class="mw-page-title-main">Fonseranes Water Slope</span> Former canal elevator

The Fonseranes Water Slope is a disused inclined plane on the Canal du Midi parallel to the Fonseranes Lock. It has a rise of 13.6 m (45 ft) and a slope of 5°.

<span class="mw-page-title-main">Classification of European Inland Waterways</span>

The Classification of European Inland Waterways is a set of standards for interoperability of large navigable waterways forming part of the Trans-European Inland Waterway network within Continental Europe and Russia. It was created by the European Conference of Ministers of Transport in 1992, hence the range of dimensions are also referred to as CEMT Class I–VII.

Keitele Canal is water route in Central Finland. It is about 45 km long. The canal consists of six lakes and five self-service locks.

Container port design process is a set of correlated practices considered during container port design, aiming to transfer general business mission into detailed design documents for future construction and operation.

References

  1. Thoresen, Carl A. (2010). "22: Definitions". Port designer's handbook (2nd ed.). London: Thomas Telford. pp. 522–535. ISBN   9780727740861. OCLC   868200455.
  2. Design guidelines for inland waterway dimensions (Incom-wg141) (PDF). PIANC. 2019. pp. 131–133. ISBN   978-2-87223-257-4.
  3. Harbour approach channels design guidelines (MarCom-wg 121). PIANC. 2014. p. 96. ISBN   978-2-87223-210-9.
  4. Recommendations for the Design of the Maritime Configuration of Ports, Approach Channels and Harbour Basins (PDF). Puertos del estado. 2007. p. section 8.6.4. ISBN   978-84-88975-39-3.

See also