The construction of the Ruoholahti–Matinkylä section of the west metro is at the authority inspection phase. HKL’s test runs were completed in May, and the Länsimetro authority inspection phase has started and will continue until the end of  August. In August, the metro stations and the rail line will be handed over to HKL to maintain.

The Matinkylä–Kivenlahti section is currently being excavated. The excavation work began in late 2014. More than 88 per cent of the tunnels have been excavated.