Year: 2015

The open excavation of the Kaitaa access tunnel will begin in the week beginning on 13 April. Blasting for open excavation will be announced by a series of short signals before the blast and a long signal afterwards. The open excavation will be carried out behind a sheet pile wall. The walkway will be closed at the access tunnel for the duration of blasting.
After open excavation, the work will continue underground on building the tunnel around May 2015. The excavation work for the access tunnel will continue until October 2015.

After the access tunnel project, a rail tunnel and metro station site will be excavated. During both work phases, excavated rock will be taken to Länsiväylä and further afield for use in other construction projects. Haulage will be based on the blasting times. Blasting will occur 1–3 times a day.

Working hours at the site, as determined by the Finnish Environment Institute, are as follows:
Earthwork and excavation work
• Mon–Fri 7.00–18.00 (quiet work also between 18.00–22.00, Sat 9.00–18.00)
Tunnel excavation (grout hole drilling, drilling, scaling)
• Mon–Fri 7.00–18.00 (quiet work also between 18.00–7.00)
Blasting in tunnel
• Mon–Fri 7.00–22.00 and Sat 9.00–18.00
Loading of excavated rock and transportation
• Mon–Fri 7.00–22.00 and weekends 9.00–22.00
• If the work causes no inconvenience to residents, it will also be carried out Mon–Fri 22.00–7.00 and weekends 22.00–9.00

We apologise for any disturbance caused by the work.

More information:
Worksite hotline Destia Oy, tel. +358 40 637 5377
Site Manager Mari Borén, Destia Oy, mari.boren(at)destia.fi
Länsimetro feedback phone number (Mon–Fri 9 a.m.-3 p.m.), tel. +358 50 377 3700

Rock blasting at the access tunnel in Kivenlahti will begin on 13 April. Blasting will be announced by a series of short signals before the blast and a long signal afterwards. After the on-ground rock blasting is completed, the work will continue underground with the building of the tunnel in late May 2015. Blasting of the tunnel will continue until October 2015.

After the access tunnel project, a rail tunnel and metro station site will be excavated. During both work phases, blasted rock will be taken to the Länsiväylä motorway and further afield for use in other construction projects. Haulage will be based on the blasting times. Blasting will occur 1–3 times a day.

Working hours at the site, as determined by the Finnish Environment Institute, are as follows:
Earthwork and blasting
Mon–Fri 7.00–18.00 (quiet work also between 18.00–22.00, Sat 9.00–18.00)
Tunnel blasting (grout hole drilling, drilling, scaling)
• Mon–Fri 7.00–18.00 (quiet work also between 18.00–7.00)
Blasting in tunnel
• Mon–Fri 7.00–22.00 and Sat 9.00–18.00
Loading of blasted rock and transportation
• Mon–Fri 7.00-22.00 –22.00 and weekends 9.00–22.00
• If no disturbance is caused to residents, also Mon–Fri 22.00–7.00 and weekends 22.00-9.00

We apologise for any disturbance caused by the work.

For more information, contact:
Worksite Hotline Kalliorakennus-Yhtiö Oy, tel. +358 50 3422 641
Site Manager Meeri Pöllänen, Kalliorakennus-Yhtiöt Oy meeri.pollanen@kalliorakennus.com
Länsimetro Feedback Phone, Mon-Fri 9.00-15.00, tel. +358 50 377 3700

The Länsi-Uusimaa Rescue Department will organise a rescue exercise at the West Metro tunnel worksite on Tuesday, 14 April from 13.00 to 15.00. The scenario for the exercise will be the rescue of personnel under construction conditions. The Urheilupuisto Station will serve as a base for this exercise. Theatrical smoke will be used in the exercise and this may reach the surface via the shaft openings.

The participants will include the contractor for the Matinkylä-Urheilupuisto rail line, YIT Rakennus Oy, the Länsi-Uusimaa Rescue Department and Länsimetro. The total duration of the exercise will be about two hours.

The exercise will not affect traffic in the area. Traffic control will be arranged on Koivu-Mankkaan tie if required.

The public are requested as far as possible to avoid the area where the exercise is taking place.

For further information on the exercise, please contact:
Petri Maunula, Rescue Manager, Länsi-Uusimaa Rescue Department.
tel. +358 50 5111 727
Satu Linkola, Communications Manager, Länsimetro Oy, tel. +358 46 877 3392

Helsinki City Rescue Department will organise a rescue exercise at the West Metro worksite in Niittykumpu on Wednesday, 8 April from 9:00 a.m. to 11:00 a.m. The scenario for the exercise will be rescue of personnel under construction conditions. The premises at Haukilahdenkatu 15 will serve as a base for this exercise. The exercise will make use of theatrical fog, some of which may find its way to the ground at the entrance to the access tunnel.

The participants will include Lemminkäinen Infra Oy, which is the contractor of the Niittykumpu station, Länsi-Uusimaa Department for Rescue Services and Länsimetro. The total duration of the exercise will be about two hours.

The exercise will not affect traffic in the area. Traffic will be directed locally as necessary.
The public are requested to avoid the area where the exercise is taking place as much as possible.

For further information on the exercise, please contact:
Kalle Ristola, Fire Brigade Chief, Länsi-Uusimaa Rescue Department, +358 46 877 3027
Satu Linkola, Communications Manager, Länsimetro, on +358 46 877 3392

At the Soukka access tunnel, blasting work on the tunnel end wall had to be carried out on Monday 23 March 2015 at 22:10, at an hour outside the normal time range for blasting work. Blasting in a tunnel is allowed between 07.00–22.00 (Mon–Fri) According to the contractor, the tunnel had been charged for blasting but, due to the heavily fractured nature of the rock, the crew was unable to to blast the end wall of the tunnel before 22:00. As postponing the blasting of the end wall, which was charged with explosives, until the next morning was out of question, the job was completed outside normal hours.

We apologise for any inconvenience due to the exceptional blasting time.

For more information contact
Worksite hotline Destia Oy, tel. +358 40 637 5377
Site Manager Mari Borén, Destia Oy, at mari.boren(at)destia.fi, or
Länsimetro feedback phone, Mon-Fri 9-15, tel. +358 50 377 3700

West metro construction is proceeding: installation of metro rails began in the second week of February. At present, the work has progressed from Ruoholahti to the Keilaniemi station. 80 per cent of concrete has been cast in stations and 92 per cent of the support wall elements at the sides of the tunnels are in place.

Follow the progress of construction at the follow-up service.

The rock blasting phase at the Soukka construction site has been completed, with Destia beginning blasting operations for the actual access tunnel during the week beginning 16 February. In its initial phase, blasting work for the tunnel will be announced by a series of short signals before a blast, and by a long continuous signal after the blast has been detonated. As blasting operations go deeper into the tunnel, no warning signals will be sounded.

We apologise for any disturbance caused by the work.

More information:
Worksite hotline Destia Oy, tel. +358 40 637 5377
Site Manager Olli Vaaramaa, Destia Oy, tel. +358 50 363 8240 (on holiday during the week starting 16 February; Rami Tuovinen will be acting as deputy; tel. 040 637 7889)
Länsimetro feedback phone, Mon-Fri 9-15, tel. +358 50 377 3700

The cutting of the foundation drilling walls has been started at the eastern end, and the first piles have been cut down. Cutting was started on the Länsiväylä motorway side and it continues counterclockwise around the station. Temporary traffic arrangements have been made on Sotkatie for the duration of the cutting.

Work is proceeding in the tunnel with interior work. Steel frames are being installed in the metro platform area. Also, the installation of rail tracks has commenced and is progressing towards the Koivusaari station.

As a general rule, heavy vehicles leaving the construction site should pass through the Hanasaari junction. Large vehicles that cannot navigate the Hanasaari junction are to use Sotkatie.

150 construction experts are currently working at the site.

More information:
SRV Rakennus Oy, 24 h hotline tel. +358 040 631 3868
Reima Liikamaa, Site Manager +358 040 842 8368
Länsimetro feedback phone number (Mon-Fri 9 a.m.-3 p.m.), tel. +358 50 377 3700

HSL will close the Iivissyrjä bus stop on Kaitaantie (in the direction of Suomenoja) on 23 February 2015. Passengers are directed to use the Iivisniemi stop at the junction between Kaitaantie and Iivisniemenkatu. The bus stop is being closed for safety reasons due to the construction of the west metro extension.

More information:
Länsimetro feedback phone number (Mon-Fri 9 a.m.-3 p.m.), tel. 050 377 3700