Cable tunnel crossing of the 18 km wide Strait of Belle Isle

The assignment consisted of geotechnical investigations to assess the feasibility of a cable tunnel crossing of the 18 km wide Strait of Belle Isle, between Labrador and Newfoundland, for the transmission of power from the Lower Churchill Project. Phase 1 is the Muskrat Falls HEP of 824 MW and Phase 2 is the Gull Island HEP of 2250 MW.

Services included:

  • Preparation of technical specifications of tender documents for site investigation work, including inclined core drilling and permeability tests.
  • Evaluation of the geological logs of more than 3 km of rock core, the supervision of permeability testing and the preparation of geological reports and tunnel support evaluation.
  • Conceptual design of the cable tunnel as a drill & blast tunnel and also as a bored TBM tunnel based on the geotechnical investigations.
  • Preparation of a cost estimate for the tunnel construction for these two alternatives.
Project type
Strait of Belle Isle Crossing, Canada
Landsvirkjun Power Ltd.

Haaleitisbraut 68
103 Reykjavík • Iceland

Parent company: Landsvirkjun
SSN: 450307-2380

Tel. +354 515 8900
Fax +354 515 8905


© 2020 All rights reserved