The Far Eastern Basin Branch of FSUE Rosmorport, within the framework of an agreement with LLC Shipbuilding Complex Zvezda, carried out dredging works in the Bolshoi Kamen bay to complete the IV stage of the shipyard construction.
The device of the entrance channel intended for the installation of a gate caisson (watertight closure) of the dry dock was carried out using a dredging convoy consisting of seven vessels: two dredging shovels – Sakhalinets and Primorets, four self-propelled scows, and a support warping hawser Vostok. The scope of dredging operations amounted to more than 70 000 m3 of excavated bottom soil.
As part of the second stage of work, the Branch's dredging fleet disassembled off a part of the temporary dry dock dam, and also dredged the water area of the Bolshoy Kamen Bay on an area of 11 000 m2, bringing the bottom marks from -12.5 m (at the entrance channel to the dry dock) to -16 m (in the water area of the bay). The scope of dredging operations amounted to more than 80 000 m3 of excavated bottom soil.
The extracted bottom soil – with a total volume of more than 150 000 m3 – was transported and stored at the sea dump in the Ussuri Bay in accordance with the project documentation and the permit issued by Rosprirodnadzor.
Read the article online at: https://www.drybulkmagazine.com/ports-terminals/08092020/fsue-rosmorport-performs-dredging-works-in-the-bolshoi-kamen-bay/