Specialist ground investigation works are set to commence at St Catherine’s breakwater, supporting the long‑term preservation of this iconic structure as part of Ports of Jersey’s ongoing investment in the island’s historic harbours.
Following the approval of a planning application, and a competitive tender process, Geomarine has been appointed to carry out the works, which will focus on two key areas: the northern buttress and the southern slipway.
Taking place throughout February, the programme of works includes the drilling of four boreholes on the southern slipway and the excavation of ten trial pits across the wider site to improve understanding of ground conditions and structural stability. Importantly, no drilling will take place directly into the historic breakwater structure itself.
The data collected will provide engineers with valuable insight to proactively shape future reinforcement and protection measures.
As a protected and much‑loved landmark, St Catherine’s Breakwater is managed in close partnership with government planning, heritage and coastal defence teams. All works have been carefully planned to respect the integrity of the structure, while prioritising public safety to future‑proof the structure for generations to come.
To minimise any disruption while this essential work is carried out, Breakwater users have been informed in advance of the works, including any temporary access arrangements.