Narrabeen Lagoon dredging project

Below some of the action from our work with client Northern Beaches Council to dredge the Narrabeen Lagoon...

Although carried out in one form or another over the last 40 plus years, 2021 was the first to use an amphibious excavator with a dredge head. This means work is safer with less impact to the local community, and we can work regardless of the lagoon depth (which often fills up significantly after rain events).

A sand/water mixture is pumped through floating pipe work to a dewatering basin. From here the excavator extracts sand and loads trucks to be taken to Collaroy beach where there is significant erosion.