[3] The tunnel opened for traffic on 21 December 2023, after which the ferry Teistin ceased its route between Gamlarætt on Streymoy and Skopun on Sandoy.

[4] The tunnel crosses the Skopunarfjørður and runs from Gamlarætt to Traðardalur in central Sandoy, near the Inni í Dal stadium.

[8] The Eysturoyartunnilin, at more than tenfold the traffic numbers projected for the Sandoyartunnilin, will partially finance the latter via cross subsidisation once the former's investment has been returned.

[12] However, in February 2024, the first full month with tolls, 783 vehicles used the tunnel, and 919 in March, approximately twice the projected traffic volume.

On Sandoy, it connects with services to Skálavík, Húsavík, Dalur and Skopun, and in Tórshavn with various Bussleiðin and national routes.