Rail line

Länsimetro is building seven kilometres of rail line, seven shafts and 32 connecting tunnels. The construction contract is being implemented by GRK Infra Oy. The construction project will be complete once the Matinkylä–Kivenlahti section is handed over to the traffic operator HKL in 2023. Additional information about the schedule for the entire project can be found in the Construction section of the website.

Contact information for the rail line contract:

The address of the worksite base is: Hyljetie 6, 02260 Espoo
Direct phone line to the worksite: +358 (0)50 516 7606
GRK Infra Oy’s contact person: sami.eskelinen(at)grk.fi
Länsimetro’s feedback line (Mon–Fri, 9 am to 1 pm): +358 (0)50 377 3700

Addresses of the shafts being built in the rail line contract:

Suomenlahdentie shaft: Suomenlahdentie 22, 02230 Espoo
Riilahdentie shaft: Riilahdentie 2, 02260 Espoo
Hyljetie shaft: Hyljetie 6, 02260 Espoo
Soukanväylä shaft: Soukanväylä 7, 02360 Espoo
Maininkitie shaft: Maininkitie 11, 02320 Espoo
Opettajantie shaft: Opettajantie 5, 02360 Espoo
Kauklahdenväylä shaft: Kivenlahdentie 19, 02320 Espoo

Further information about the worksite:

Länsimetro’s feedback line (Mon–Fri, 9 am to 1 pm): +358 (0)50 377 3700

Hours of operation specified by the Finnish Environment Institute (PDF, in Finnish)

The construction contract for the Matinkylä–Kivenlahti section of the rail line started in June 2018. Rail tunnel structures are being simultaneously built for three sections: Matinkylä–Kaitaa, Kaitaa–Espoonlahti and Espoonlahti–Kivenlahti.

The work is progressing according to plan on different sections of the rail line. The concrete structures and prefabricated element installations are largely completed; by the end of January, nearly 11,000 cubic metres of concrete had been cast on the rail line, and the remaining 76 retaining wall elements will be installed once the superstructures contract is completed.

HVAC and electricity work is proceeding as planned, and numerous subcontractors are also currently working on the rail line.

The superstructures contract is currently being planned and the preparatory work is under way. Sleepers, tracks and turnouts are being manufactured for the installations that are set to begin already in the summer.

The shafts are being built at intervals of approximately 600 metres in holes excavated from ground level to the rail line, for the purposes of ventilation, smoke extraction and pressure equalisation. The shafts also serve as emergency exits. The purpose of the connecting tunnels is to interconnect the two parallel tunnels and ensure the safety of the metro in emergency situations. The connecting tunnels are around 150–170 metres apart. Read more about the shafts.

Read about the tunnel construction phases.

Go to the image bank (Flickr) to see what the worksite looks like and how the construction is progressing. We will update the photos as the work progresses.

The metro is being built on residents’ and nature’s terms – read more.