The M/S Henriette is a self-propelled work pontoon with bow door. It is especially suited for the use in inland waterways and in the shallow water areas at coasts.
It can fall dry, but it can also work as a semi-submersible pontoon. In the semoi-submersible configuration, it can reduce its own weight by up to 60 tons.

Depending on the work to be carried out, the M/S Henriette will be equipped with additional devices:
  • with a hydraulic excavator for dredging work and riprap work
  • with a cable-operated excavator for pile-driving work and
    other excavation work
  • with a Colcrete mixing plant with cement silos or with a
    Colcrete underwater placing unit, respectively.

Technical Data
Name: Henriette
Type of vessel: Self-propelled work vessel
Year of construction: 1994
Gross tonnage (GT): 276
Net tonnage (NT): 82
Length: 42.23 m
Width: 9.54 m
Moulded depth: 2.51 m
Draught: max. 1.77 m as seagoing vessel/ max. 2.22 m as inland vessel
Load capacity: 360 t as seagoing vessel / 582 t as inland vessel
Engine capacities: 2 x 250 kW
Navigational area: Coastal area
  • 2 to 4 anchor piles of variable length
  • front flap