Cable Crossings Survey for Kraftnät Åland

As part of the preparations for the cable laying campaign MMT has completed a cable crossings survey for Kraftnät Åland. The planned submarine cable is 152km long, and will be laid from Naantali to Juvik, Åland (Finland). The survey was planned based on a desktop survey done by MMT (Sweden) during the summer and autumn of 2014. All available information for the area was combined in a database and compared with information from Kraftnät Åland. A selection of priority blocks was made based on that information and served as the basis for the survey campaign.

The aim for the survey campaign was to gather detailed information on where the existing cables crosses the planned cable route. The cable crossings survey was recently performed and included the use of MMT´s surface-towed Geometrics G-882 TVG, ROV mounted Innovatum gradiometers and ROV video. For the assignment MMT used the chartered vessel Geomari owned by GTK, Finland and the MMT survey & ROV vessel Icebeam (image).

Icebeam was well suited in the challenging Åland archipelago and the ability to quickly adapt survey performance according to local conditions proved crucial for the project to execute it in a timely and safe manner.