Technical Construction Supervision

With a profile based on top notch service, we support clients in the implementation of their offshore and onshore projects. In doing so, we provide competent advice in all matters of technical construction supervision, both before and during the construction phase.

Cable laying in the Wadden Sea off the coast of Norderney
Cable manufacturing
Clearance of unexploded ordnance (UXO)

Supervision before the Construction Phase

  • Technical advice on cable manufacturing (cable design)
  • On-site supervision during cable production
  • Monitoring FAT (Factory Acceptance Test)
  • Geophysical, geological, geotechnical and environmental subsurface investigations ( e.g. MAG (p-UXO), MBES, SSS, VibroCore, CPT, etc.)
  • Route preparation: Route Clearance, Boulder Clearance, Pre Lay Grapnel Run (PLGR), Mattressing, Pre Lay Run (PLR), Dredging
  • Quality control, evaluation, and assessment of survey data

Supervision during the Construction Phase

  • Cable loading and transport
  • Cable installation in shallow water and tidal flats e.g. Vertical Injector, Vibro Sword etc.
  • Cable installation in deep water e.g. with cable ploughs (HD3 Plough), trencher, TROVs etc.
  • Cable Pull In and Cable Landing (pull in as first end or second end, floating or dry falling, with or without cable protection systems, pull in into cable protection pipes)
  • Electrical work (cable pull in, joint installation, termination installation)
  • Subsequent work (e.g. burial of cables and joints, cable protection, backfilling, rock dumping, etc.)
  • Commissioning (optical and electrical measurements, sheath tests, high-voltage tests)
  • Documentation of construction progress
  • Checking the as-built documentation
Cable joint
Survey after submarine cable installation


eos projekt GmbH
Am Fischereihafen 2
26506 Norden

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