Subsea Cables

Route engineering, landing design and as-laid records, from landing station to seabed.

Route EngineeringCable LandingsTerrestrial BackhaulGIS & As-Laid
A shore end in section: the landing station and its backhaul, the beach manhole, the HDD that exits in shallow water, burial across the shelf, then the slope down to the first repeater. Depths match the route position list below; values are illustrative and distance is not to scale.

Where Land Meets Sea.

Landing transoceanic fiber cables requires careful coordination between terrestrial civil engineering and marine route surveys. We model the route from the landing station through the beach manhole and HDD borehole, and our specialist marine partner takes it out to the seabed.

  • Beach manhole placement and horizontal directional drilling profiles
  • Shore-end routing, from the landing station to the borehole exit
  • Marine route profiling and KP markers, with our specialist marine partner

How We Partner on Subsea Cable Systems.

We deliver marine and terrestrial route engineering, cable landing and shore-end design, and documentation for subsea cable owners, system suppliers and marine installers. The terrestrial network design we deliver every day is paired with a specialist partner team of marine route engineers, giving you one accountable delivery partner from shore to sea.

One Route, Carried Through Every Stage.

Bring us in at the stage you need. The same team carries the route from first options through to the as-laid record.

Stage 01

Desktop Study & Route Planning

Landing options and route corridors assessed against hazards, other cables, protected areas and permitting constraints.

Stage 02

Survey & Route Engineering

Survey data turned into an engineered route — refined alignment, burial assessment inputs and crossing designs.

Stage 03

Installation Engineering

RPLs, route and installation charts, and landing and shore-end drawings ready for the lay campaign.

Stage 04

As-Laid & Maintenance

As-laid RPLs, charts and GIS records updated from installation data, ready for operations and repair.

Subsea Cable Engineering, End to End.

Desktop Studies & Route Planning

Landing site options, route corridors and constraint mapping to shortlist the most buildable route.

Route Engineering & RPLs

Engineered routes and route position lists, updated through survey, permitting and installation.

Cable Landing & Shore-End Design

Beach manholes, HDD and duct routes, and cable landing station layouts.

Terrestrial Backhaul Design

Fiber routes from the landing station to the POP or data center, designed by our wired network team.

Crossings & Permitting Drawings

Cable and pipeline crossing designs and the drawing packs needed for consents and third-party agreements.

GIS, Charting & As-Laid Records

Route charts, GIS datasets and as-laid documentation for handover, operations and repair planning.

Connect With Our Engineering Leadership.