News

Rescue exercise at Sammalvuori worksite on 30 March

The Länsi-Uusimaa Rescue Department will organise a rescue exercise at the Sammalvuori metro depot worksite, starting at 1 pm on Thursday, 30 March 2017.

A worksite fire has been selected as the exercise scenario. Work will partly continue as normal during the exercise.

Traffic will be directed locally as necessary. 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. +358 46 826 7019
Satu Linkola, Communications Director, Länsimetro, tel. +358 (0)46 877 3392

Board of Länsimetro Oy, summary of decisions 16 March 2017

The situational picture of the commissioning of the first phase of the West Metro was presented to the Board of Länsimetro Oy at the meeting held on 16 March. The project is progressing in accordance with the schedule estimate.

An updated forecast of the final cost of the project was presented to the Board. The situation in March is that the final cost estimate updated at the end of 2016 will be sufficient to complete the project. The final cost forecast has taken into account various needs, including the need of spare parts, facility services, which must be in place before traffic is initiated. In addition,  unexpected expenditure items have been provided for.

The Board approved the costs relating to HKL’s test runs. The test runs ensure the system’s functionality and conformity.

The Board placed on record that the second phase´s market dialogue for the acquisition of  construction projects will begin with contractors next week.

The Board signed Länsimetro Oy’s statement of accounts. It was also communicated that the loan withdrawals previously approved by the Board were implemented on 13 March.

The Board were shown how the Länsimetro organisation was confirmed in accordance with the plan submitted previously. As from January, a risk management project engineer, two real estate development managers and a public relations officer began work within the project. Another two real estate development managers, an architect and a quality manager will be recruited.

The Board were informed about the revamp of the website, measures to increase the efficiency of internal communications and other spring communication themes.

The Board also discussed the report that it had commissioned on the costs and schedule delays. Assessment and preparation of the report’s publication is still continuing The report will publish on the basis of a lawyer’s assessment everything that can be published without causing damage to the company or to the company’s owners. The report will be presented to the company’s owners prior to publication.

The next Board meeting will be held on 13 April 2017.

Further information:

Ville Saksi, MD, Länsimetro Oy, tel. +358 (0)40 823 2086

Olli Isotalo, Chairman of the Board of Länsimetro Oy, tel. +358 (0)50 593 3359

Media contacts: Satu Linkola, Communications Director, tel. +358 (0)46 877 3392

Confirmed: the metro’s structure-borne noise levels will remain below recommended values

When the traffic on the West Metro line begins, the metro will be a fairly silent affair, as revealed by the measurements of Akukon Oy, the company responsible for the noise abatement designs of the metro. Akukon has measured in the buildings near the metro line the so-called structure-borne noise, i.e. the noise of the metro train transmitted through the bedrock. Without noise abatement, the sound of the metro train passing underground could be heard as a booming sound in nearby buildings.

Control measurements performed late last year and early this year show that the noise insulation designed by Akukon are functioning everywhere the way they should – up to the point where the metro noise actually remains significantly below recommended values. In practice, the noise made by the metro cannot be heard in the buildings above the metro line, and even in silent spaces, they cannot be distinguished from other background noise.

The check-ups involved four different locations, representing all materials used in the insulation of the structure-borne noise of the metro. The measurement locations were purposefully selected among those with the potentially highest noise levels: houses directly above the rail on the crest of the rock or from rocky areas. Measurements were always performed at the lowest floor of each building.

“We have succeeded with the design, material choices and building of the West Metro in that the noise of the metro will not disturb people living or working in the area,” says Timo Peltonen, Technical Director at Akukon Oy.

Noise abatement was designed combining empirical professional knowledge gathered over decades and computer-assisted 3D modelling. This made it possible to predict which houses and areas could be the most exposed to structure-borne noise and to choose suitable materials for noise abatement.

Steel rails are now resting on a bed of macadam and noise insulation. A mat under the macadam helps to absorb the vibration travelling from the tracks to the bedrock. The noise insulation has been installed throughout the West Metro line excluding sections that pass under the sea or the Länsiväylä motorway, as it is not needed there.

Further information: Timo Peltonen, Technical Director, Akukon Oy: tel. +358 50 584 9814
timo.peltonen@akukon.fi

 

 

Excavations near Maininkitie until the end of 2017

Excavation work in Espoonlahti to continue until the end of 2017

Rail tunnels of the West Metro’s second phase are being excavated in Espoonlahti. The rail tunnels to the west will be completed in August 2017 and the depot junctions and the Maininkitie shaft by the end of 2017.

In the near future, in early April 2017, superstructure construction work will begin at the Espoonlahdenkatu entrance. This work will also continue until the end of 2017. Excavation of the upper parts of the Maininkitie shaft and its collar structures will be completed in April–May 2017.

In addition to the metro worksite at Espoonlahti, other work under way in the area includes the construction of a shopping centre by Citycon Oyj and street construction by the City of Espoo. Information about these is available through their own communication channels.

Excavation work in Kivenlahti well under way

The last station of the West Metro’s second phase will be in Kivenlahti, where excavation work is well under way. The Kivenlahti tunnel’s eastern end, i.e. the affected area of Maininkitie, will be completed within approximately two months, after which bolt-boring will continue for around a month. The drilling work will be undertaken on weekdays from 7 a.m. to 6 p.m. and excavation blasting on weekdays before 10 p.m.

Excavation work at Kivenlahti station and its western end will continue until July–August.

The largest excavation work in Sammalvuori to be completed in June

As part of the West Metro’s second phase, an underground depot is being constructed in Sammalvuori. This night time depot for metro trains will also include maintenance facilities. Approximately half of the excavations for the connection rails have been done, and the aim is to complete the excavation of the largest masses by the end of June 2017. Blasting in Sammalvuori takes place on weekday mornings, usually around 7 a.m. to 9 a.m., and in the evenings from 7 p.m. to 10 p.m.  Occasional blasting work may take place at other times.

Excavation of the shaft for the Sammalvuori gate has now been completed next to the S-Market in Kivenlahti. The next step will be reinforcement work, to be followed by construction work. Fixed vibration measurement units have been placed extensively in the area, and more of these will be added if needed as the excavation work progresses.

Further information:

24-hour hotline for the Sammalvuori site: +358 50 343 7233

24-hour hotline for the Espoonlahti site: +358 40 637 5377

24-hour hotline for the Kivenlahti site: +358 50 342 2461

Länsimetro feedback phone number (Mon–Fri 9.00–15.00), tel. +358 50 377 3700

Excavated rock loaded in Sammalvuori on a new timetable

Excavated rock at west metro’s Sammalvuori depot site will be dumped, loaded and screened between 6 March and 30 June 2017 on a new timetable. The timetable has been adjusted.

The noise permit complied with states that excavated rock transported out of the tunnel may be dumped on the north-east side of the tunnel mouth at Sammalvuori metro depot on weekdays (Mon–Fri) at 7.30–22.00 and, if needed, on Saturdays at 9.00–18.00.

Excavated rock transported out and stored overground may be loaded on weekdays at 7.00–17.30, and screening of excavated rock is allowed on weekdays (Mon–Fri) at 8.00–17.30.

Furthermore, a noise embankment is being built on the edge of the site, and it is estimated to be completed by 18 March.

Further information:

24-hour hotline for the site, Sammalvuori consortium, tel. +358 50 343 7233

Site Manager Juha Selin, juha.selin@kalliorakennus.com
Länsimetro feedback phone number, Mon–Fri 9.00–15.00, tel. +358 50 377 3700

Helsinki City Rescue Department training at the Koivusaari station from 27 February to 2 March

The Helsinki City Rescue Department will train firefighting and personal rescue on 27 and 28 February and 1 March at the Koivusaari station, and on 2 March there and at the Katajaharju shaft. The training will take place from 11 am to 2 pm each day. The rescue exercises are part of the West Metro’s introduction into use.

The purpose of the training is to practice rescue missions using the West Metro’s security systems. This is also a cooperation exercise between various actors such as the Helsinki City Rescue Department and the Länsi-Uusimaa Department for Rescue Services, the Metro Control Room and other personnel of Helsinki City Transport (HKL), emergency care and the police.

During the training, several rescue vehicles will be parked around the Koivusaari station and nearby shafts. Theatrical smoke will be used in the exercise, and this may reach the surface near the training locations.

The Koivusaari station is located at the address Sotkatie 11. The Katajaharju shaft is at Isokaari 33.

Further information:

Jani Pitkänen, Fire Chief, Helsinki City Rescue Department, tel. +358 (0)50 433 6905

Excavation work for Sammalvuorenportti shaft begins

The actual excavation work at the Sammalvuori metro depot, i.e.  the Sammalvuorenportti shaft, will start in week 7. The shaft worksite area is located between Kivenlahdentie and Länsiväylä, close to the ABC service station. The excavation of the shaft will be carried out through the tunnel below. Work at the shaft began in October 2016 with the superstructure construction work followed by open excavation above ground.

Further information:

24-hour hotline for the site, Sammalvuori consortium, tel. +358 50 343 7233

Site Manager Juha Selin, juha.selin@kalliorakennus.com
Länsimetro feedback phone number (Mon–Fri 9.00–15.00) +358 50 377 3700

Summary of decisions 16 February 2017: The procurement strategy for the second phase was presented

The procurement strategy for the second phase of the West Metro project was presented to the Board of Länsimetro Oy at its meeting on 16 February 2017. The procurement strategy will take into account experiences from the first phase. The goals of the strategy include ensuring adequate competition and clear contract scoping. The procurement strategy will also emphasise dialogue between the different parties during the procurement phase and cooperation with the contractor during contract implementation. Länsimetro’s procurements will be announced in the public procurement system HILMA.

The report commissioned by the Board was presented to the Board. The Board will continue to discuss the matter in its next meeting in March.

The Board also approved Länsimetro Oy’s financial statement as well as a proposal that the organisation responsible for building the West Metro will move into shared premises during the spring.

The Board also approved a policy to draw up a summary of decisions made after every Board meeting. According to the City of Espoo’s corporate group guidelines, the City’s major subsidiaries must prepare a public summary of decisions made at Board meetings.

The next meeting will be held on 1 March 2017.

Further information:

Ville Saksi, MD, Länsimetro Oy, tel. +358 (0)40 823 2086

Olli Isotalo, Chairman of the Board of Länsimetro Oy, tel. +358 (0)50 593 3359

Media contacts: Satu Linkola,Communications Director, tel. +358 (0)46 877 3392

The total expenses of West Metro amount to EUR 1,186 million – the MD is replaced

The forecast of the total expenditure of the West Metro projects amounts to EUR 1,186 million. Länsimetro Oy will need an increase of a total of EUR 104 million for the loan guarantee, to be granted by the City of Espoo and the City of Helsinki. Furthermore, the Board of Länsimetro Oy today appointed civil engineer Ville Saksi the new Managing Director of the company.

The cost of construction will rise from EUR 1,088 million to EUR 1,154 million. The indexed budget for construction work under the project, taking the entire scope of the project plan (2008) into account, amounts to EUR 849 million (with the project plan covering EUR 714 million, to which an index increase of EUR 135 million must be added). The forecast was raised by an increase in the number of units and the fact that the construction took longer than anticipated and by other similar factors. Furthermore, the new forecast takes account of various needs, including the need of spare parts and the facility services, which must be in place before traffic is initiated. Building contracts under the project have been implemented in a form know as the unit price contract between 2013 and 2016. Changes to the scope of construction, due to, for example, official regulations, led to an increase in the number of units under construction contracts. The sum of the final cost will be available only after the construction is complete.

Central to the cost increase under the project plan have been contracts that turned out to be more difficult than expected, changes to construction regulations, and an increase in space requirements, including technical facilities, smoke extraction and the requirements for accessibility at the both entrances of the stations.

The total cost of the project amounts to EUR 1,186 million. The total cost includes a contingency amounting to EUR 32 million. The government subsidy is EUR 249 million.

In connection with the West Metro project, the Niittykumpu station, the Matinkylä terminal and the western entrance to the Matinkylä station will also be constructed, in accordance with a separate decision made by the Espoo City Council. The cost forecast for this amounts to EUR 80 million.

As the estimated cost keeps going up, the project management needs to apply for an additional guarantee both from the City of Espoo and the City of Helsinki. The need for additional funding will be brought before the councils of both cities. Additional funding seeks to take account of all possible expenses in order to ensure that construction can be completed before traffic is initiated.

On 14 November, the Board of Länsimetro Oy decided that civil engineer Ville Saksi be appointed the new MD of the company. He will immediately begin in his new post. Previously, Ville Saksi was the MD of VR Track Oy.

The schedule for the opening of West Metro to traffic will be finished as soon as the joint testing of three stations is completed by the turn of November and December. The joint testing of the Aalto University station has been completed.  The joint testing of the Tapiola and Keilaniemi is about to start. After this, joint testing will continue at the Koivusaari, Lauttasaari, Urheilupuisto, Niittykumpu and Matinkylä stations.

Stabilisation work begins at the Riilahti shaft

Stabilisation work at the Riilahti shaft will begin in week 46. Stabilisation involves the installation of 125 concrete pillars in order to prevent any land subsidence. Pillar stabilisation will take approximately 5 weeks. After this, the installation of drilled piles will begin at the shaft at the beginning of 2017, in week 2. The estimated duration of drilled pile installation is 7 weeks. According to a preliminary estimate, shaft excavation will begin in September 2017. This will be carried out by drilling above the ground. The actual entrance shaft will be excavated from underneath in the tunnel. Signals will be sounded to warn about any excavation. Work in the area will continue into the latter part of 2017.

The working hours for all phases of superstructure construction are Monday to Friday, 7.00 to 18.00.

We apologise for any inconvenience caused by the work.

Further information:
Site Manager in charge of shaft, John Uusipuro, SRV Infra Oy, tel. +358 440 330 658
Worksite hotline SRV Infra Oy, tel. +358 40 183 0090
Länsimetro feedback phone number (Mon–Fri 9.00–15.00), tel. +358 50 377 3700