Four new hopper dredgers for Rosmorport

Construction has started for four new hopper dredgers for Rosmorport from Russia.
Three of them will be a combination of a trailing suction and a grab hopper dredger with a capacity of 1,000m3.
The fourth unit will be a trailing suction hopper dredger with a capacity of 2,000m3.


The three dredgers of 1,000m3 are built by Krasnoe Sormovo in Nizhny Novgorod, one of Russia's oldest shipyards, where on 14 November 2014 the keel laying ceremony was held for the first of this series.
All three vessels will be equipped with the necessary high-dredging equipment, suitable for the climatic conditions of the region.
In order to expand the scope of the work during dredging with sharp sand and gravel and in limited areas near piers and jetties, the dredgers will be equipped with an outboard multifunctional submersible groundwater pump type DOP 200.
The main task of the vessels will be to remove materials from the waterways and berths in order to maintain safe navigation depths at Ust-Luga, Big Port St. Petersburg and Tuapse.
The design of these dredgers comes from Damen Shipyards (The Netherlands), which also delivers the dredging package.
The delivery is scheduled for 2016.

The main dimensions of these dredgers are:

Hopper capacity:1.000 m3
Length o.a.: 62,6 m
Length b.p.: 58,4 m
Width: 14,0 m
Draught: 4,3 m
Dredging depth: 20,0 m


The dredger of 2,000m3 is being built at the Song Thu Corporation shipyard (Da Nang, Vietnam), a member of Damen Shipyards group of companies, where the keel laying took place on 21 November 2014.
The vessel is going to be called Severnaya Dvina after the name of the river in the north of European Russia which flows into the Dvina Bay of the White Sea near Arkhangelsk.
It will be used in the Arkhangelsk seaport waters and on its approaches in order to maintain the depths established to ensure safe navigation.
For this dredger the delivery is also scheduled for 2016.

The main dimensions of the Severnaya Dvina are:

Hopper capacity:2.000 m3
Length o.a.: 80,4 m
Length b.p.: 76,1 m
Width: 16,2 m
Draught: 5,1 m
Dredging depth: 22,0 m

Source: Rosmorport, November 2014