Docking Shoal Race Bank

Our client
The Docking Shoal metmast is located approximately 17 km off the coast of Norfolk and the Race Bank metmast is located approximately 31 km off the same coast of Norfolk (both outside the Wash area) in the United Kingdom. Mammoet Van Oord was subcontractor to SLP Energy, who received the contract from Centrica. The objective of the meteorological masts is to collect meteo data at various heights up to a level of 90 m height.

Our work
Mammoet Van Oord has been responsible for the load-out, marine transport and installation of two metmasts. Preparations started in Schiedam, the Netherlands, and all metmast components were transported, loaded and seafastened on the jack-up platform ‘Jumping Jack' together with an IHC S-600 hydrohammer and other necessary equipment.

Each metmast consists of a monopile with a diameter of 1.40 m for Docking Shoal and 1.80 m for Race Bank respectively with a maximum length of 55 m and a weight of 115 tons. Secondly a platform, including preinstalled facilities, to be fitted to the monopile. Finally a 75 m long lattice mast, lifted in two stages, and bolted onto the platform.

Our results
The installation operations of both metmasts were completed in time, without incidents/accidents, to the total satisfaction of the client.