The TSHD ''Shoalway'' is a

trailing suction hopper dredger A trailing suction hopper dredger is a ship that has a full sailing capacity used to maintain navigable waterways, deepening the maritime canals that are threatened to become silted, to construct new land elsewhere or to replace sand eroded by ...

, owned and operated by

Royal Boskalis Westminster Royal Boskalis Westminster N.V. is a Dutch dredging and heavylift company that provides services relating to the construction and maintenance of maritime infrastructure internationally. The company has one of the world's largest dredging fleets, ...

, originally intended for the

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

market and built in 2010.

Design

The vessel was the first of four ships designed by Conoship International and D.W. den Herder maritiem, with a shallow draught and high manoeuvrability for difficult port construction, maintenance,

land reclamation Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamati ...

, coastal defense and offshore energy projects. The typical carpentry needed for a vessel of this kind was completed by Hans Dorgelo. It was the first dredger in the Boskalis fleet to use

azimuth thrusters An azimuth thruster is a configuration of marine propellers placed in pods that can be rotated to any horizontal angle (azimuth), making a rudder unnecessary. These give ships better maneuverability than a fixed propeller and rudder system. T ...

as its main means of propulsion. The ship is equipped with rainbow discharge valves for

beach replenishment Beach nourishment (also referred to as beach renourishment, beach replenishment, or sand replenishment) describes a process by which sediment, usually sand, lost through longshore drift or erosion is replaced from other sources. A wider beach can ...

, two jet water engines for sediment dispersal, non-protruding bottom doors in the hopper (cargo hold) for dumping at sea and engines designed to stringent

MARPOL The International Convention for the Prevention of Pollution from Ships, 1973 as modified by the Protocol of 1978, or "MARPOL 73/78" is one of the most important international marine environmental conventions. MARPOL 73/78, MARPOL is an amalg ...

sulphur emissions standards.

Capabilities

Equipped with a suction pipe with a diameter of , a dredge pump of , two jet pumps of and a maximum dredging depth of the ship is able to pump its load ashore by

pipeline Pipeline may refer to: Electronics, computers and computing * Pipeline (computing), a chain of data-processing stages or a CPU optimization found on ** Instruction pipelining, a technique for implementing instruction-level parallelism within a s ...

, dumping or

rainbowing Rainbowing is the process in which a dredging ship propels sand that has been claimed from the ocean floor in a high arc to a particular location. This is used for multiple purposes, ranging from building up a beach to prevent erosion to construct ...

Sister Vessels

Its sister vessels of the ''Shoalway'' class include the ''Causeway'', the ''Strandway'' and the ''Freeway''.

References

External links

*
Boskalis Official Fact Sheet

Bureau Veritas Class Specifications

Conoship International : Ship designers 'Matchmakers' Innovators
Dredgers Service vessels of the United Kingdom 2009 ships {{ship-stub