“AL-IDRISI” Hopper Dredger IMO 9572707.

General properties

IMO number:  9572707

Vessel type:  TSHD (Hopper dredger)

Built :  2012

Shipyard:  STX offshore Shipbuilding ( Busan Shilpyard )

Main Particulars-

Length (OA):  119.1 m

Length (BP):  104.25 m

Width:  23 m

Depth:  10.75 m

Draft (loaded):  8.15 m

Deadweight:  11800 tons

Speed (loaded):  14 knts

Total power:  8975 kW

Hopper volume:  7500 m³

Dredging depth:  35 m

Dredging depth (extended):  46.6 m

Suction pipe diameter:  1 m

Number of dredging pipes:  1

pump power trailing:2000 kW 

pump power discharging 4000 kW 

propulsion power 2 x4000 kW

DWT (t)11800

Position Marinetraffic

What is a hopper dredger?

A hopper dredger is a type of specialized ship used for the purpose of dredging. Dredging involves the excavation of sediment or other material from the bottom of rivers, harbors, and other bodies of water to maintain or improve navigation channels, create new land, or extract valuable resources.

A hopper dredger is designed with a large open hold, known as a hopper, located in the center or aft of the ship. The hopper has the capacity to store the dredged material, such as sand, silt, or gravel. The ship can then transport the material to a designated location, often a disposal site, where it can be deposited.

Hopper dredgers feature specialized equipment, including suction pipes, dragheads, and pumps, used to remove the material from the seabed. Pipelines or suction arms transport the dredged material into the hopper for storage. Once the hopper is full, the dredger sails to the disposal site and releases the material.

The advantage of using hopper dredgers is their ability to efficiently dredge and transport large quantities of material. They can operate in a variety of conditions, including shallow or deep waters, and are commonly used for maintaining shipping channels, reclaiming land for coastal protection, or creating new ports.

Overall, hopper dredgers play a crucial role in maintaining and improving navigability, ensuring smooth maritime traffic, and supporting various construction and infrastructure projects in coastal areas.