September 8 - Mammoet has transported the last concrete bunker at the Lek channel in Vreeswijk, the Netherlands on behalf of the Dutch ministry of infrastructure and environment, Rijkswaterstaat; and the Besix, Heijamans and Jan de Nul building consortium
The operation was part of a larger project in which three bunkers and two water management structures, originally constructed before WWII as part of the Nieuwe Hollandse Waterlinie defence line, were moved to make way for the widening of the channel.
Mammoet utilised a gantry positioned on self-propelled modular transporters (SPMT) to pick up the 750-ton (680.4-tonne) bunker and move it 80 m to its new location.
According to Mammoet, at the end of WWII, a bomb was detonated inside one of the bunkers. This meant that before the final bunker could be relocated, Mammoet had to build a corset around the structure to ensure it would not be damaged further.
In total, Mammoet transported more than 4,800 tons (4,354.5 tonnes) for Rijkswaterstaat and Sas van Vreeswijk since the start of the project in February 2017.