Cable Route Surveys

We conduct cable route surveys, combining geophysical, geotechnical, environmental and UXO surveys, to ensure that our clients can design and engineer the most cost-effective and reliable wind farm export and inter array cables, as well as HVDC links and interconnectors in their projects.

The geophysical site surveys provide bathymetry, seabed features and sub-bottom conditions, using multibeam echo sounders, side-scan sonar, magnetometer and sub-bottom profilers.

Our geotechnical investigations are carried out using specialist equipment, including vibrocorers/pistoncorers, day grab and CPTs and then an analysis of the soil is conducted at our carefully selected laboratories, so we produce the best and most accurate results.

Our environmental surveys map marine habitats using remote sensing methods (multibeam and side scan sonars) and ground truthing equipment (drop-cameras, ROVs and seabed sampling tools). The results, together with habitat classifications and statistical analysis, are then presented in reports, charts and GIS. These reports commonly form an essential part of our clients’ EIA (Environmental Impact Assessment) documentation.

As part of the risk assessment for all submarine installations, we provide detection, verification, excavation and clearance services for UXO’s. With our extensive experience and by using multibeam bathymetry, side-scan sonars, magnetic methods (such as magnetometer, gradiometer and TVG) and ROV inspections, we are at the forefront of this service.

We present all our integrated data in paper charts, as well as AutoCad, GIS and other interactive software.

We also carry out high-resolution pre-lay surveys, through video footage and bathymetric data prior to installation.

We specialise in swift and optimal operations and many of our clients benefit from our ability to conduct many surveys from the same vessel.