Part of Global Connect’s investment in building a new digital highway, Aurora. Baltic Offshore installed the submarine telecom cables between Sassnitz-Bornholm-Simrishamn and Bornholm-Öland-Gotland, as well as increased the capacity with a new subsea cable between Copenhagen and Malmö. Total length of installed submarine cables is over 460km where the majority of the route has been buried into the seabed by a jet trencher.
The Gotland-Öland-Bornholm route is about 255km and the cables has been buried into the seabed by jet trencher in Danish waters.
Scope of supply
- Project management
- Engineering
- Permits
- Liasion with Marine Archeological instiutes
- Survey with Multibeam, Sub bottom profiler and Side scan sonar
- Cable delivery
- 4 x landfalls with HDD
- Shorelandings including floating operations
- Cable laying including ROV touch down monitoring
- Crossings with Uraduct
- Pre-lay grapnel run in trenching areas
- Post lay trenching from Pleijel in DK waters
- Protection at landfall with rockbags
Specific challenges
Permit handling vs time constraints.
Long drillings at landfalls and challenging geophysical conditions.
Floating operations in difficult areas with micro re-routing on site.
Cable data
Cable type: Hexatronic, 192 fibres, DA
Total length: (75 + 180 km) 255km
Customer: Global Connect
