Shoalway

The TSHD Shoalway is a trailing suction hopper dredger,[2] owned and operated by Royal Boskalis Westminster,[3] originally intended for the British market[4] and built in 2010.

Shoalway in Hamburg, March 2013
History
Name: Shoalway
Owner: Royal Boskalis Westminster
Operator: Royal Boskalis Westminster
Port of registry: Limassol,  Cyprus
Builder: Intervak Scheepswerf & Constructie b.v, Harlingen, Netherlands
Yard number: 221
Laid down: 2008
Launched: 2009
Christened: 30 April 2010
Completed: 2010
Maiden voyage: Greenock
In service: 23 April 2010
Identification: Call sign: 5BYP2
IMO number: 9556337
MMSI number: 212115000[1]
Status: In service
General characteristics
Class and type: Shoalway-class
Type: Dredger
Tonnage: 4,088 GT
Length: 90 m (295 ft 3 in) LOA
Beam: 19 m (62 ft 4 in)
Draught: Summer: 5.933 m (19 ft 5.6 in)
Dredging: 6.820 m (22 ft 4.5 in)
Depth: 7.25 m (23 ft 9 in) moulded
Decks: 6
Installed power: 6,666 kW (8,939 hp) @ 1600 rev/min
Propulsion: Azimuth thrusters with Caterpillar Inc. 3516B 1,491 kW (1,999 hp) x2 & Caterpillar Inc. 3406C 229 kW (307 hp) & Veth 2-K-1400 500 kW (670 hp) bow thruster
Speed: 11 kn (20 km/h)
Capacity: 4500 m3
Crew: 10

Design

The vessel was the first of four ships designed by Conoship International[5] and D.W. den Herder maritiem, with a shallow draught and high manoeuvrability for difficult port construction, maintenance, land reclamation, coastal defense and offshore energy projects.[6] It was the first dredger in the Boskalis fleet to use azimuth thrusters as its main means of propulsion. The ship is equipped with rainbow discharge valves for beach replenishment[7] or land reclamation, 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 sulphur emissions standards.

Capabilities

Equipped with a suction pipe with a diameter of 900 mm (2 ft 11 in), a dredge pump of 1,680 kW (2,250 hp), two jet pumps of 746 kW (1,000 hp) and a maximum dredging depth of 30 m (98 ft 5 in) the ship is able to pump its load ashore by pipeline, dumping or rainbowing.

Sister Vessels

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

References
  1. "Shoalway (9556337)". Equasis. French Ministry for Transport. Retrieved 20 August 2019.
  2. http://westminster.boskalis.com/fileadmin/user_upload/Subsites/Boskalis_uk/Vessels/vessel_sheets/Shoalway_LR.pdf
  3. "Fleet and equipment". boskalis.com.
  4. Elson, Peter (6 May 2010). "New Mersey dredger named at Liverpool Cruise Terminal". liverpoolecho.
  5. http://www.conoship.com/en_dredgers,12.html
  6. http://www.boskalis.com/activities/dredging-inland-infra.html
  7. "Shoalway - Trailing suction hopper dredgers - Equipment | Dredging Database". www.dredgepoint.org.


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