Boskalis' Trailing Suction Hopper Dredger 'BARENT ZANEN' has recently commenced regular runs to and from the Thames dredging ground to discharge sand into the DWDR reclaim areas. Currently on a 12 hour round trip cycle with discharge taking approx 2 hours.
Sand being pumped into the hoverport infill area from pipeline along the Prince of Wales pier connected to the bow of the dredger
with more recent discharges commenced into the outer harbour reclaim area
Boskalis website gives details of the dredger and how it works:
https://westminster.boskalis.com/uploads/media/Barent_Zanen_LR_01.pdf