Abstract: In accordance with one embodiment, a servicing watercraft that may be safely secured to a serviced watercraft. The servicing watercraft comprises at least one auxiliary section that may be positioned to either a) increase the effective width of the servicing watercraft thus reducing rolling motion while the servicing watercraft is stationary or in operation, OR b) decrease the width of the servicing watercraft thus reducing drag while the watercraft is moving through the water. Furthermore, the auxiliary section(s) help the servicing watercraft to be positioned in an optimum location adjacent to the serviced watercraft as to avoid impact from accidently dropped cargo or shipping containers from the serviced watercraft.

Abstract: A transshipper for floating on water comprises a pair of elongate buoyant vessels arranged in parallel spaced relationship for receiving a feeder barge to be unloaded between the vessels. The platform is supported by the buoyant vessels in a raised position above the buoyant vessels. A transfer conveyor supported by the buoyant vessels extends transversely of the buoyant vessels in a raised position above the buoyant vessels. A first lifting conveyor is suspended from the platform and is movable longitudinally of the transfer conveyor for raising material to be unloaded from a feeder barge located between the buoyant vessels and for depositing the material onto the transfer conveyor. A second lifting conveyor is provided for receiving material from the transfer conveyor and an unloading boom is provided for receiving the material from the second lifting conveyor and for delivering the material to a receiving vessel located alongside one of the buoyant vessels.

Abstract: A self-loading, self-discharging, bulk cargo transhipper 20 comprising a buoyant vessel 21 capable of receiving water as ballast inside the buoyant vessel 21, a bulk material receiving system 22, a bulk material distribution system 25 and a bulk material holding system 28, which transhipper 20 is a deep sea transhipper for the transfer of bulk cargo between vessels or between a port without deep draft loading facilities and a vessel at sea. The invention also relates to method of material transfer between vessels at sea or between a port without deep draft loading facilities and a vessel at sea.

Abstract: A system for transporting material recovered in a dredging operation performed by a dredge is disclosed. The system includes a water-borne material distribution vessel including a conveyor system for receiving and depositing the recovered material. It also includes at least one water-borne material transportation vessel for transporting recovered material from the dredge to the material distribution vessel. The water-borne material distribution vessel can deposit the material into the waterway to form an island (which may be a levy), into another water-borne vessel, or into an on-shore station such as a wheeled transportation vehicle.