On 4 October, a new connection between the Soukka and Espoonlahti rail tunnels was excavated on the Matinkylä–Kivenlahti section of the West Metro. In each West Metro contract, the worksites excavate simultaneous tunnels which are then connected at the boundary between contract areas.
Earlier breakthroughs have been made between Finnoo–Kaitaa and Kaitaa–Soukka. After Wednesday’s breakthrough, the tunnel line now runs without interruptions from Finnoo, the first station of the metro’s second phase, to the penultimate station Espoonlahti. The breakthrough between Espoonlahti and Kivenlahti is yet to be accomplished. However, a connection has been excavated between Espoonlahti and the Sammalvuori depot.
The breakthrough was made on 4 October at 7 a.m. The excavation removed some 150 tonnes of rock separating the two tunnels.
A total of 91.3% of the excavations for the West Metro’s Matinkylä–Kivenlahti section are now completed. The excavations will be followed by a construction phase that has already begun in Sammalvuori.
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