ASL Shipyard in Singapore completed Sentinel 303 and Sentinel 304 to a Robert Allan Ltd design for deployment in British Columbia, Canada Q4 2022
These 3,500 tonne barges will be used by Western Canada Marine Response Corp (WCMRC) for pollution control and readiness along the south coast of British Columbia and represent a significant enhancement to the pollution response capabilities already in place.
At 2,822-gt, these 76-m barges have a moulded beam of 20 m, a depth of 6 m and a navigational draught of around 5 m. Classed by ABS class for unrestricted service as oil spill recovery units, they have capacity to hold 3,785 m3 of recovered oil, 125 m3 of fuel oil, 150 m3 of potable water, 100 m3 of sewage and 100 m3 of grey water.
Twenty personnel can be accommodated in 10 double-crew cabins. The electrical plant comprises four Caterpillar C4.4 diesel gensets each with a power output of 118 ekW. The aft section has the main working deck and contains all the oil spill response equipment. The spill containment systems consist of four unsheltered booms stored in containers with hydraulic reels, two current busters stored in a single container with hydraulic reels and four containers of general-purpose boom.
Storage is provided for absorbents, mission-specific containers, general equipment, decontamination gear, dry storage and a containerised workspace.
Two small vessel docks are stored on board and can be deployed on port and starboard sides to allow other response vessel crews to embark or disembark to or from the response barges and also facilitate the transfer of recovered oil from the response vessels to the response barge.
A Desmi Terminator skimmer and hose reel are available to recover floating oil and two mini storage barges are stowed on deck and can be deployed in the field to aid in the response. A Norcrane fixed-boom crane with a safe working load of 9 tonnes at 19 m is fitted aft to handle the above-mentioned oil spill response gear and hoses.
