Radar/Consultancy and professional services/CM4 - Bathymetry & Topographic Surveys - Bishop

Trinity House

CM4 - Bathymetry & Topographic Surveys - Bishop Rock and Longships Lighthouses

Deadline17:00, 15 October 2026 (UK time)50 days left to submit

Four questions, no account, no card. If the fit is poor we say so and show you three better Notices.

Scope, in the buyer’s own words

Trinity House (TH) holds the operation and maintenance responsibility for over 60 lighthouses around England, Wales, the Channel Islands and Gibraltar. These critical aids-to-navigation (AtoNs) include several Rock Tower lighthouses that require regular modernisation and ongoing maintenance.

Accordingly, Trinity House would like to investigate the feasibility of utilising jack-up and floating assets to avoid repeated journeys to these remote locations by helicopter to mobilise personnel, equipment and tools.

To support this investigation, it is important to have accurate bathymetric and topographic surveys of the surrounding area.

What you will be scored on

  • Criterion 1

Next

Four questions and you will know whether this is worth your evening. 50 days left.

Check your fit