Indian River Bay Landfall and Export Cable Route GI

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Direct Client


Sealaska Engineering &

Applied Sciences (SEAS)

End Client

US Wind

Site Operations

January – March 2022

Project Summary

Causeway Geotech were appointed by Sealaska Engineering & Applied Sciences (SEAS) to provide project management and site supervisory services for a nearshore/inshore ground investigation. The aim of the project was to characterise ground conditions at the proposed cable landing point and along the various export cable corridor route options for a new offshore windfarm development.

The construction of the new windfarm required investigation of the superficial soils and deeper geology to progress the design of the proposed cable landing point and the export cable routing to the ultimate termination point at the tie-in with the local grid some 15km west of the landfall location.

Siteworks carried out under Field Project Managers from Causeway Geotech who liaised with the onboard Client’s Representatives to ensure all aspects of the works were completed safely and as per the project requirements. The overwater works were carried out on a daylight-hours only basis, with crew changes completed at 3-week intervals to switch out site crews as required.

This contract required careful planning from inception through to delivery in light of the high HSQE standards required by an offshore project of this nature.  Through open and honest constructive communications between the international project team and with valuable input from our subcontractors, the contract was completed without incident.

The project was completed within the anticipated timeline and under projected budget.

Project Scope

Overwater boreholes

Overwater CPT locations

ft-class Lift Boat