Osshore Construction Vessel

Transshipment crane pontoon 


The pontoon is to be constructed in Brazil for operations on the Amazon River, loading Panamax size vessels with bulk foodproducts from river going barges.  The design allows completely autonomous loading operations, with its own power generation, crew facilities, workshops and stores.
The width of the barge and position of the crane have been optimized to allow for fast charging and dis-charging operations from high depth vessels, such as chip carriers, and other bulk carriers.
The mooring system of the barge is fully symmetric and designed to handle shifting of the pontoon alongside the bulk carrier as well as the river going barges from both sides of the pontoon, increasing flexibility in the mooring orientation of the cargo vessel, pontoon and river barges.  All shifting operations are controlled from a central control station on the barge.
The DOI scope of supply included the basic design of the pontoon, including general arrangements, structural plans, preliminary weight and stability, system diagrams, and electrical single line diagrams.  The structural integration of the crane was also part of the DOI scope and has been checked by means of a Finite Element Analysis.  In addition, analyses were made of the mooring forces and vessel motions in the intended area of operation.
The design of the pontoon complies with ABS “rules for building and classing steel vessels for service on rivers and intracoastal waterways” and Marinha do Brasil “NORMAM-02/DPC”-rules for Area 1 and Area 2 navigation.


Principal characteristics

  • Length o.a. 90.06 m
  • Width 22.00 m
  • Depth 4.975 m
  • Class: A1 ABS, Barge, River Service (with descriptive note: Crane Barge)

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Transshipment crane pontoon

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