Tunnelling construction projects and references

References for tunnel construction


References

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K2D Skøyen – Vækerø

Oslo, Norway

Start of construction: March 2023
Construction volume (value of our services): 115,351 M EUR Costs converted according to average yearly exchange rates during project realization

Implenia has been awarded the contract for section K2D Skøyen - Vækerø, which is part of the entire Fornebu line that will be completed in 2030. The contract is a continuation of an ongoing tunnel contract for the Fornebu line…

Metro Toulouse line C, Lot 3

Toulouse, France

Start of construction: January 2023
Construction volume (value of our services): 332 M EUR

The third metro line, Line C, will connect Colomiers and Labège in 20 minutes. Faster journeys, less congestion and pollution: this will benefit the quality of life and the environment. Implenia - Demathieu Bard Construction has…

Secondo tubo San Gottardo - Lot 241, Main Tunnel North

Göschenen, Switzerland

Start of construction: October 2022
Construction volume (value of our services): 452,996 M EUR Costs converted according to average yearly exchange rates during project realization

The present project includes the execution of the second tunnel tube north (2TG), the fault zone drive north, the second stage of the precut, the TBM launch section, the cross connections, the ventilation control centers and the…

KS-2 Tangenvika jernbanebru

Stange, Innlande, Norway

Start of construction: May 2022
Construction volume (value of our services): 166,071 M EUR Costs converted according to average yearly exchange rates during project realization

Bane NOR und Implenia haben einen Vertrag über den Bau einer Eisenbahnbrücke für eine zweigleisige Eisenbahnstrecke über Tangenvika in der Kommune Stange in der norwegischen Provinz Innlandet unterzeichnet. Der Vertrag, bei dem…

Brenner Basistunnel Los H41

Pfons, Austria

Start of construction: January 2022
Construction volume (value of our services): 651,037 M EUR

The Brenner Base Tunnel is a flat railroad tunnel connecting Italy and Austria. It runs between Innsbruck and Franzensfeste over a length of 55 km.

Sofia

Stockholm, Sweden

Start of construction: August 2021
Construction volume (value of our services): 120 M EUR

Sofia metro station is part of the extension of the blue line towards Gullmarsplan and Nacka

Franzensfeste-Waidbruck, Baulos 1, Brenner

Franzensfeste, Italy

Start of construction: June 2021
Construction volume (value of our services): 1,071 B EUR

Construction lot 1 from Franzensfeste to Waidbuck will run almost entirely as a tunnel and reach a length of approx. 22.5 km. The challenging construction project includes the construction of two new rail tunnel sections as well…

K2A Tunnel og grunnarbeider Lysaker-Fornebu

Fornebu, Bærum, Norway

Start of construction: May 2021
Construction volume (value of our services): 117,786 M EUR Costs converted according to average yearly exchange rates during project realization

The Fornebubanen will establish a new t-train line between Majorstuen and Fornebu. The line will run 8 km in a tunnel under the hill. The line will start with a new station and base at Fornebu and extend to Majorstuen where the…

Secondo tubo San Gottardo - Lot 243, North access tunnel

Göschenen, Switzerland

Start of construction: April 2021
Construction volume (value of our services): 85,081 M EUR Costs converted according to average yearly exchange rates during project realization

To rehabilitate the existing Gotthard Road Tunnel, a second tunnel tube (2TG) will be built first. Lot 243 comprises the construction of the access tunnel and the north logistics excavations. The project serves for the…

E39 Lyngdal Øst - Lyngdal Vest

Lyngdal, Norway

Start of construction: January 2021
Construction volume (value of our services): 276,397 M EUR Costs converted according to average yearly exchange rates during project realization

E39 Lyngdal East - Lyngdal West stretches from Herdal to Røyskår for a total of 11 km. The project involves a longer road with several tunnels, bridges and complex infrastructure. The contract will be executed as a total contract…

District heating tunnel – West (FWS-West) Southern Line

Hamburg, Germany

Start of construction: January 2021
Construction volume (value of our services): 75,939 M EUR Costs converted according to average yearly exchange rates during project realization

Wärme Hamburg is a 100% municipal heat supplier and, with the "FWS-West project", intends to install a district heating line from the new CHP plant to be built at the Dradenau site through the Waltershof port area, in a new…

TELT, CO08 - Villard Clément

Lyon, France

Start of construction: January 2021
Construction volume (value of our services): 248 M EUR

Construction of the base tunnel from the Villard Clément portal attacks.

380-kV-Kabeldiagonale, 50hertz

Berlin, Germany

Start of construction: August 2019
Construction volume (value of our services): 128 M EUR

Cable diagonal Berlin - Construction of a 6.7 km long cable tunnel with 4 shafts as supply / rescue shafts

Sandbukta-Moss-Såstad (SMS2A)

Sandbukta, Moss, Såstad, Norway

Start of construction: June 2019
Construction volume (value of our services): 599,596 M EUR Costs converted according to average yearly exchange rates during project realization

The project New double track Sandbukta-Moss-Såstad (SMS2A) is part of the Intercity expansion, and is one of the parsellene in the direction of Halden (Østfoldbanens vestre line). On the line, 10.3 km of new double track will be…

München Haltepunkt Marienhof

München, Germany

Start of construction: January 2019
Construction volume (value of our services): 394,7 M EUR

The major project 2nd S-Bahn main line Munich consists of the sub-projects "above-ground areas", "inner city area/tunnel" and "supplementary network measures" in the outer branches.

U-Bahn Linie 17.1 - Paris Grand Paris Express

Paris, France

Start of construction: January 2019
Construction volume (value of our services): 441 M EUR

With a length of 27 km, line 17 extends over 13 municipalities in the departments of Seine-Saint-Denis, Val-d'Oise and Seine-et-Marne. It connects nine stations between Saint-Denis Pleyel and Le Mesnil-Amelot in less than…

Citylink Anneberg-Skanstull Tunnel

Stockholm, Sweden

Start of construction: December 2018
Construction volume (value of our services): 90 M EUR

As the second of four phases of the so-called City Link Project, the Anneberg-Skanstull Tunnel serves to improve the power supply in the Greater Stockholm area. At a length of around 14 km and a diameter of 5 m, the tunnel is…

Varberg Tunneln FAS 2

Varberg, Sweden

Start of construction: June 2018
Construction volume (value of our services): 328 M EUR

Strategically important railway project in Varberg.

Line B of the Lyon Metro

Lyon, France

Start of construction: January 2018
Construction volume (value of our services): 394 M EUR

This project, with a length of approximately 2.5 km, will extend line B from Gare d'Oullins station to Hôpitaux Lyon Sud station and create two additional stations. The journey time between Oullins station and the Lyon Sud…

Slussen SN91

Stockholm, Sweden

Start of construction: January 2018
Construction volume (value of our services): 77 M EUR

Extensive rock and concrete work at Katarina Mountain

Extension of Metro B – Hopitaux Lyon Sud – GC01

LYON, France

Start of construction: December 2017
Construction volume (value of our services): 138 M EUR

In order to serve the city center of Oullins, the university-hospital hub of Lyon Sud, to create a multimodal exchange center and globally to intensify the development of the "valley of hospitals", SYTRAL has decided to extend…

Tubbing factory – Limoges Fourches

Limoges-Fourches, France

Start of construction: December 2017
Construction volume (value of our services): 105 M EUR

Implenia France, within the ALLIANCE group, has developed a specific production tool for segments (tunnel lining) for the needs of Grand Paris.

Getingmidjan

Stockholm, Sweden

Start of construction: April 2017
Construction volume (value of our services): 88 M EUR

Complex project in the heart of Stockholm.

Extension of Métro Ligne 15 South, Lot T2C, Paris

Paris, France

Start of construction: December 2016
Construction volume (value of our services): 365 M EUR

The “Grand Paris Express” project aims to improve links between the French capital and neighboring residential areas in the Greater Paris region (Île-de-France) by building a transport network of six driverless underground…

Extension of Métro Ligne 11, Lot GC01, Rosny-sous-Bois, Paris

Paris, France

Start of construction: December 2015
Construction volume (value of our services): 267 M EUR

The “Grand Paris Express” project aims to improve links between the French capital and the neighboring residential areas in the Greater Paris region (Île-de-France) by building a transport network of six driverless underground…

SGP – Ligne 15 sud, Lot T2C

Noisy-Champs, France

Start of construction: December 2015
Construction volume (value of our services): 365 M EUR

The Grand Paris Express project aims to better connect the French capital and neighbouring residential areas in the Paris region by building a six-line driverless metro system by 2030. The project will require 210 kilometres of…

E4 Förbifart, Johannelund Tunnel

Vällingby, Sweden

Start of construction: January 2015
Construction volume (value of our services): 254 M EUR

The bypass “Förbifart” Stockholm is a link between the north and south of the capital of Sweden and intends to relieve the traffic through the city. The 21 km long bypass motorway, of which approximately 17 km are underground in…

Semmering Basistunnel Los 1.1

Maria Schutz, Austria

Start of construction: January 2015
Construction volume (value of our services): 457 M EUR

The approximately 27.3 km long Semmering Basistunnel is one of the most important and complex infrastructure projects in the heart of Europe. This double-tube railway tunnel is located between Gloggnitz and Mürzzuschlag, linking…

Semmering Basistunnel SBT Los 2.1

Steiermark, Austria

Start of construction: January 2014
Construction volume (value of our services): 623 M EUR

The planned Semmering Base Tunnel (SBT) is currently one of the most important large-scale infrastructure projects in the heart of Europe, and forms part of the new Austrian southern railway, a central axis on the trans-European…

U5, Berlin

Berlin, Germany

Start of construction: December 2011
Construction volume (value of our services): 159 M EUR

Construction of 1.6-kilometre-long double-tube tunnel and shell construction of two stations in central Berlin