Panamax and New Panamax are terms for the size limits for ships travelling through the Panama Canal. The limits and requirements are published by the Panama Canal Authority (ACP) in a publication titled "Vessel Requirements". These requirements also describe topics like exceptional dry seasonal limits, propulsion, communications, and detailed ship design.
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger.
Lutine was a frigate which served in both the French Navy and the Royal Navy. She was launched by the French in 1779. The ship passed to British control in 1793 and was taken into service as HMS Lutine. She sank among the West Frisian Islands during a storm in 1799.
Garden Reach Shipbuilders & Engineers Ltd, abbreviated as GRSE, is one of India's leading shipyards, located in Kolkata. It builds and repairs commercial and naval vessels. GRSE also exports the ships that the company builds.
Appledore Shipbuilders is a shipbuilder in Appledore, North Devon, England.
USS Millard County (LST-987) was an LST-542-class tank landing ship built for the United States Navy during World War II. Named after Millard County, Utah, it was the only U.S. Naval vessel to bear the name.
The Port Phillip Channel Deepening Project (CDP) began on 8 February 2008 to deepen the shipping channels leading to Melbourne, Australia.
Jan De Nul Group is a Belgian family-owned company, with the financial headquarters in Luxembourg, that provides services relating to the construction and maintenance of maritime infrastructure on an international basis. Its main focus is dredging, which accounts for 85% of its turnover. Other areas include civil engineering and environmental technology.
The TSHD Shoalway is a trailing suction hopper dredger, owned and operated by Royal Boskalis Westminster, originally intended for the British market and built in 2010.
Dredging, Environmental and Marine Engineering NV (DEME) is an international group of specialised companies in the fields of capital and maintenance dredging, land reclamation, port infrastructure development, offshore related services for the oil & gas industry, offshore windfarm installation, and environmental remediation. The group is based in Zwijndrecht, Belgium, and has current operations on five continents.
A Slice of Reality is a work of modern art by Richard Wilson sitting by the Millennium Dome on the north-western bank of the Greenwich Peninsula. It consists of a 9-metre (30 ft) sliced vertical section through the former 800-ton 60-metre (200 ft) sand dredger Arco Trent and exposes portions of the former living quarters of the vessel to the elements.
A trailing suction hopper dredger (TSHD) is a type of ship capable of maintaining navigable waterways, deepening the maritime canals that are threatened to become silted, constructing new land elsewhere or replacing sand eroded by storms or wave action on the beaches. This is made possible by large, powerful pumps and engines able to suck sand, clay, silt and gravel.
The TSHD Sospan Dau is a Dutch trailing suction hopper dredger owned by Sosban BV. The vessel has worked on dredging projects, including offshore aggregates, port maintenance, land reclamation, coastal defense and beach replenishment. The name Sospan Dau is Welsh and originates from Sosban Fach and Llanelli's tin plating industry, Sospan being the Welsh for Saucepan and Dau being Welsh for Two as the ship is a successor to the original Sospan.
Dredging Corporation of India Limited, or DCI, is an Indian dredging company which does dredging for Indian seaports exclusively. It occasionally dredges at foreign seaports in countries such as Sri Lanka, Taiwan and Dubai. It is mainly involved in maintenance dredging. Almost all the maintenance dredging in Indian seaports is carried out by DCI due to government regulations. DCI is also involved in capital dredging, beach nourishment, and land reclamation. The main seaports in which DCI does business are Visakhapatnam Port, Haldia, Kandla, Cochin Port and Ennore Port.
The Haldia Port, officially Haldia Dock Complex (HDC), is a port on the confluence of the Haldi River and the Hooghly River. The port is located at Haldia in West Bengal, about 130 kilometres (81 mi) from the sandheads–deep sea area of the Bay of Bengal, 45 kilometres (28 mi) upstream from Pilotage Station at Sagar and 104 km downstream of Kolkata. In 1968, an oil jetty was commissioned at Haldia, and officially in 1977 the port facility of Haldia started functioning as a subsidiary port of the Port of Kolkata under the name Haldia Dock Complex.
The first exclusively owned dredger ship of its type in the Indian Navy; the indigenously built ship is meant for dredging the various navy ports. The ship was designed to meet precise deepening requirements around the dockyard and port installations and in riverine or other places where deepening is needed. The ship which can hold up to 300 cubic metres or 500 tons of dredged material, has a set of 8 openable hopper bottom doors for disposal of dredged material out at sea. The main equipment of the ship is a 320-HP Cummins-855-powered forward-mounted crane supplied by Titagarth Wagons. The crane’s 15.2-meter boom has a working radius of 12 meters and hoisting capacity of 10.5 metric tons at a 46-degree boom angle. The crane’s grab bucket has 3-cubic-meter capacity and holds up to 4.5 metric tons of dredged material; and is capable of dredging up to depths of 10 meters.
MV Tian Kun Hao (天鯤) is a Chinese dredger that has been described variously as “Asia’s most powerful island maker” and "magic island maker" due to its capability to dig 6,000 cubic metres per hour of sand/silt. The ship was launched at Qidong in Jiangsu province in November 2017. The ship is apparently named after "a legendary enormous fish which can turn into a mythical bird".
Spartacus is a cutter suction dredger (CSD) that entered service in August 2021 for DEME. She is the largest and most powerful ship of her type in the world.
USAVYaquina is a hopper dredge of the United States Army Corps of Engineers. Her primary mission is to maintain the entrance bars, rivers, and harbors along the coasts of California, Oregon, and Washington. She is assigned to the Portland District of the Army Corps of Engineers. Her homeport is Portland, Oregon. She was launched in 1980 and remains in service.
J. & K. Smit was a Dutch shipbuilding company located in Kinderdijk and Krimpen aan de Lek. Its successor is now part of Royal IHC.
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