Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

A.S.T. Bochum on tunnelbuilder!

A.S.T. Bochum on tunnelbuilder!

Tunnelbuilder is pleased to announce that A.S.T. Bochum of Germany has become a new advertiser on our website. A.S.T. Bochum is your specialised supplier for all Tunnelling, Microtunnelling as ... More Information

Mühlhäuser enters Tunnel Boring Machine Business

 Mühlhäuser enters Tunnel Boring Machine Business

Zürich / Lyon, 13.11.2015: NFM Technologies and MÜHLHÄUSER have signed an exclusive agreement whereby Mühlhäuser will represent NFM Tunnel Boring Machines (TBMs) with ... More Information

South Tyrol – Castelbello/Colsano ring road

The detailed design of the Castelbello and Colsano ring road has been approved for the SS 38 in Stelvio. The tender is about the construction phase and will be reviewed in 2017, the value will be ... More Information

Updates on Wendlingen - Ulm line

Updates on Wendlingen - Ulm line

Wendlingen-Ulm Line Steinbuehl Tunnel On 06.11.2015 at the Todsburg portal the breakthrough took place of the 4847 m long Steinbuehl tunnel. This was originally expected in the spring of 2016 ... More Information

ES Rubber gaskets used for Koralm tunnel

 ES Rubber gaskets used for Koralm tunnel

As part of the Koralm tunnel (lot KAT 3) two tunnels, which are 5.9 km long and with a 9.5 m external diameter, will be driven by a bi-modal TBM and will be lined with about 45,000 segments ... More Information

Melbourne Metro Rail Project

Melbourne Metro Rail Project

On 19.11.2015 the government announced the EUR6.08-7.43 billion (AUD9-11 billion) Melbourne Metro project in Australia can be procured as an availability based Public Private Partnership (PPP) ... More Information

Shieldhall tunnel

Shieldhall tunnel

Scottish Water reached a key milestone in the construction of the Shieldhall Tunnel in Glasgow. Bachy Soletanche, the UK company contracted last June by the JV VINCI Construction Grands Projets and ... More Information

Underground Construction Prague 2016 - Registration

The on-line registration has now opened the for the 2016 Underground Construction conference that will be held in Prague from 23.05.2016 to 25.05.2016. To register please visit the website ... More Information

Breakthrough of Line 3 of Riyadh's Metro

A ceremony was held for the breakthrough of  Line 3 of Riyadh's Metro, it is the longest part of the network at 40.7 km. The line runs from the west near the Jeddah Expressway and ends in the ... More Information

New record set by SELI on the Doha Metro Gold Line

New record set by SELI on the Doha Metro Gold Line

On 08.11.2015 Seli Overseas broke through at Al Wabb Station on the Doha Metro Gold Line and set a new production record for the line with 625 m excavated in one month. Seli Overseas subcontract ... More Information

STUVA-Expo 2015

STUVA-Expo 2015

STUVA-Expo 2015 - these 164 exhibitors are prepared for your visit! 3D Mapping Solutions GmbH, A.S.T. Bochum GmbH, AB Alvenius Industrier, ACO Tiefbau Vertrieb GmbH, ADCOS NV, Adolf Würth GmbH ... More Information

Metro Line 1 at Turin

A TBM, built in Germany by Herrenknecht, will be assembled and lowered in the metro station ready to dig and build a tunnel under Nizza Street, first towards Moncalieri and then towards Lingotto for ... More Information

Third light rail tunnel segment for Northgate Link extension completed

On 06/11/2015 the TBM Brenda reached the future station of the extension of the U District Northgate Link to Seattle, completing the third segment of the twin 3.5-mile tunnels being mined by JCM ... More Information

Sandvik and Bauma Munich 2016

Sandvik and Bauma Munich 2016

Sandvik Construction will not now be exhibiting at Bauma in April 2016. The reason for this decision is due to their continuing strategy of focusing on the real needs and requirements of their ... More Information

Final phase for new Midtown Tunnel

Final phase for new Midtown Tunnel

The Midtown Tunnel is comprised of 11 different concrete elements which are now complete. The final layer which is called armor stone will protect the tunnel from ship anchors in the Federal ... More Information

Gotthard tunnel referendum on second tube

A referendum will be held on  28.02.2016 for Swiss citizens will make a decision about the federal government proposal to build a second tube for the Gotthard road tunnel under the Alps before ... More Information

Italy - Technical regulations for fire prevention in metropolitan railways

The Ministry of the Interior for the technical regulations for fire prevention in the design, construction and operation of metropolitan railways have published their latest guidelines. Visit ... More Information

Breakthrough in the Sachseln safety tunnel

Breakthrough in the Sachseln safety tunnel

On 19.10.2015 a veteran Robbins Main Beam (diameter 4.20 m, weight 260 t) completed the excavation of the 5,084 m-long  Sachseln safety tunnel on  the A8 motorway, in Switzerland. Works, ... More Information

Moscow Metro on a Roll!

Moscow Metro on a Roll!

This Autumn the company SMU Engeocom from Moscow completed two tunnels for the third interchange (second circle line) of the Moscow metro, using two Robbins EPB TBMs. On 24.10.2015 the TBM Victoria ... More Information

Second tunnel on Auckland’s Waterview Connection motorway completed

Second tunnel on Auckland’s Waterview Connection motorway completed

TBM Alice, one of the largest TBM's ever used in the Southern Hemisphere, completed its work on the Waterview Connection, a link in a motorway network through the city of Auckland, between the ... More Information

Final Breakthrough in Monte Poggio Maria tunnel

Final Breakthrough in Monte Poggio Maria tunnel

On 22.10.2015 Cipa SpA completed the excavation of the  railway tunnel Monte Poggio Maria.  The project is part of construction for the enlarging of the Cefalu'- Ogliastrillo section on ... More Information

FCC to construct the Toyo Tunnel in Colombia

FCC to construct the Toyo Tunnel in Colombia

FCC has been awarded the contract for the project which includes the design, construction, operation and maintenance of the Toyo tunnel in the Urabá Port (around 80 kilometres from ... More Information

Turin Line 2 approved

On 20.10.2015 the Turin City Council approved the tender design to authorize the start of tendering process for contracts to construct the city's second driverless metro line, connecting Rebaudengo ... More Information

Seli Overseas sponsors tunnelbuilder!

Seli Overseas sponsors tunnelbuilder!

Tunnelbuilder would like to welcome Seli Overseas SpA as the latest sponsor of the tunnelbuilder websites. In February last year Seli Constructions SpA partnered with Grandi Lavori Fincosit Spa ... More Information

New milestone for the red line project in Doha

New milestone for the red line project in Doha

With the breakthrough of TBM S-867 on 10.10.2015 and S-865 on 13.10.2015 at the Legtaifiya Station in Doha, Salini Impregilo, leader of the ISG joint venture, has completed 11 out of the 16 ... More Information

Chiaravagna tunnel completed

Chiaravagna tunnel completed

On 22.10.2015 Cipa Spa, along with the contractor COCIV, finished the excavation of the 278 m Chiaravagna tunnel. The tunnel is part of the new high speed, high capacity railway line ... More Information

Florence breaks through at Castle Hill

Florence breaks through at Castle Hill

On 02.10.2015 Sydney metros North West TBM number 2 Florence broke through into the site of the future Castle Hill station after a 6.5 km dig. Work began at Bella Vista in late October last year. ... More Information

Pinchat railway tunnel breakthrough

Pinchat railway tunnel breakthrough

The final wall of the 2.1 km Pinchat tunnel came down on the 10/08/201. The tunnel is 30 meters below the Route de Troinex, creating the connection between Carouge-Bachet and Val d'Arve, on the ... More Information

Fortezza-Ponte Gardena access plans filed

RFI and Italferr have completed the final design for the Fortezza-Ponte Gardena access, which is part of the Brenner Base Tunnel project and filed it at the Ministry of Infrastructure and Transport. ... More Information

Testing has begun at the Gotthard Base Tunnel

The federal office of transport has given the go ahead for testing to begin in the Gotthard Base Tunnel.  The first successful test runs began on 01/10/2015 with the first trains using ... More Information

Iran-Armenia railway construction

The construction of the Iran-Armenia railway will begin after the creation of an important cargo base. The railway will be used mainly for in-transit freights from Iran to other countries. The ... More Information

Breakthrough for SS640 at Caltanissetta tunnel

Breakthrough for SS640 at Caltanissetta tunnel

On  the 15/10/2015 C.M.C Ravenna with TBM Barbara broke through on the first part of the 4 km Caltanissetta tunnel, which is part of the 28 km-long section upgrade at the A19 ... More Information

Latest news from the Shieldhall tunnel

Latest news from the Shieldhall tunnel

The contract was awarded equally between  JV Costain and VINCI Construction Grands Projets and covers the construction of two shafts, 15 m diameter each, with a depth of 20 m, a 300 m long ... More Information

The first tunnel section of line 5 of the Riyadh Metro is complete.

The first tunnel section of line 5 of the Riyadh Metro is complete.

On 06.10.2015 FAST, the FCC-led consortium made up of Samsung, Alstom, Strukton, Freyssinet Saudi Arabia, Typsa, Atkins and Setec, finished drilling the first tunnel section of line 5 (green ... More Information

Cifa at Victoria Station – Press release

Cifa at Victoria Station – Press release

The London Underground, the oldest in the world and the largest in Europe, comprises 11 different lines and 270 stations. Of these the Victoria Line is a deep-level underground route that was ... More Information

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

On 31.08.2015 a 14 m diameter dual-mode EPB TBM was launched in Hong Kong at the north portal of the tunnel that will link the north-eastern New Territories and the Liantang border crossing in ... More Information

Tunnelling News

Femern - inauguration of the first tunnel element

We are pleased to announce that H.M. King Frederik X will take part in the inauguration of the first tunnel element on the construction site on 17 June. H.M. King Frederik X will arrive at ... More Information


A busy first half of the year on the HOCHTIEF-MURPHY Joint Venture (HMJV) Package 5 Headhouses & M&E contract on National Grid’s LPT Phase 2... More Information

Tesla Cybertruck escorts Boring Co's Prufrock-3 tunnel boring machine

The Boring Company's Prufrock-3 tunnel boring machine (TBM) recently completed a tunnel to Giga Texas, and in true Elon Musk fashion, ... More Information

Kazakhstan’s First Automobile Tunnel and Largest Bridge to be Completed this Year

As reported by the Kazakhstan’s Ministry of Transport, Kazakhstan’s first automobile tunnel through the Shakpak Baba Pass and the country’s largest bridge over the Bukhtarma Reservoir ... More Information

HRBT Expansion Project hits big milestone, could be on track for early completion

The tunnel boring machine, known as Mary ... construction of our two new bored tunnels,” said Project Director Ryan Banas... More Information

TBMs Pass Factory Test For Lesotho Highlands Water Project

A team of engineers and tunnel experts from the Lesotho Highlands Development Authority (LHDA) together with consultants and contractors working on the Polihali transfer tunnel recently ... More Information

Royal Cargo opts for Goldhofer heavy transport equipment

It has also been in action moving tunnel boring machines (TBM) for the Metro Manila Subway project ... machine part posed a significant challenge due ... More Information

Tunnel breakthrough on NI Water's £7.8M Portadown wastewater project

The tunnel boring machine excavated roughly 1,000m3 of material, which would have risen to 8,000m3 of spoil with a more traditional open-cut method. More Information

The Boring Company announces Cybertunnel at Tesla Texas HQ

In January, the company's latest tunnel boring machine (TBM), Prufrock 3, was first spotted near Tesla's Giga Texas. Prufrock-3 has ... More Information

How do you build tunnels and bridges underwater?

Underground construction usually uses powerful tunnel-boring machines to excavate soil directly. This machine is often called a mole for a reason. More Information

Five Huge New Construction Projects Coming To The US

A spokesperson for the project told Newsweek: "The Hudson Tunnel Project is a generational investment that is expected to create 95,000 new jobs and ... More Information

Chennai Metro Corridor 3: Adyar River Tunnel Work Hampered By Geological Setbacks

For the stretch between Greenways Road and Adyar, CMRL engaged two TBMs, 'Kauvery' and 'Adyar.' These machines were launched from Greenways Road ... More Information

French and Danish firms to build Valby 'cloudburst tunnel'

The underground tunnel will be 2,380m long and will be constructed as a drilled tunnel with an internal diameter of 3.4m. The tunnel will have the ... More Information

Howard's approved budgets include $44.9M for Ellicott City tunnel

The Howard County Council has approved a $2.4 billion operating budget for fiscal 2025, along with a $413 million capital construction budget that ... More Information

DC Water Breaks Ground On Potomac River Tunnel Project

DC Water on May 21 hosted a groundbreaking ceremony to officially commence construction activities for the Potomac River Tunnel Project... More Information

Silvertown Tunnel portal connections completed

A complete transformation of the tunnel shape was needed to connect the circular tunnel boring machine (TBM) constructed ... More Information

The $4BN Tunnel to Save Stockholm - The B1M

Above: A tunnel entrance under construction. When it completes in 2030, the $4BN project will be one of the longest road tunnel systems in the world. More Information

OHLA awarded the Gjønnes tunnel in Norway for nearly 160 million euros

The Norwegian Public Roads Administration (Statens Vegvesen) has awarded the company the design and construction of the Gjønnes tunnel for 156 ... More Information

Utilities tunnel dug through 'challenging' ground conditions under River Tees

Main contractor Farrans Construction worked with specialist contractor Joseph Gallagher to construct the tunnel. During its five weeks of tunnelling ... More Information

China develops world's first boring and blasting machine

In a groundbreaking development, the world's first boring and blasting machine, jointly developed by Tsinghua University and China Railway Science and Industry Group, has successfully ... More Information

Tunnel boring machine wedged in hard rock, leaving Snowy 2.0 hydropower project with new issues

Tunnelling problems are plaguing the $12 billion Snowy 2.0 hydropower project, with a boring machine previously bogged in soft ground now wedged in ... More Information

Construction Complete On New High-Speed Rail Tunnel

Inside the completed Desheng Tunnel, and inset, a Chinese high-speed train. Work on the project is now complete. © China ... More Information

DC Water Breaks Ground on Potomac River Tunnel Project

The Project consists of a large-diameter deep sewer tunnel, diversion facilities, drop shafts, and support structures to capture flows from existing ... More Information

Morocco’s proposed $13 billion underwater tunnel to connect Europe to Africa by 2030s

An historic intercontinental rail link is aiming to link Europe to Morocco with an ambitious underwater tunnel. The Moroccan National Company for Strait Studies (SNED) announced last ... More Information

Government set to fund £1bn final HS2 London tunnel drive

The project was halted as part of Prime Minister Rishi Sunak’s £6.5bn cost-cutting plan announced last October. This involved axing phase 2 to Manchester and finding a private investor ... More Information

HS2 Project Update, May 2024

Our Victorian railways have carried us successfully through history, but with passenger numbers continuing to rise, investing in new, modern railway lines like HS2 is the key to meet the ... More Information

PM inaugurates breakthrough of Sunkoshi Marin Diversion tunnel

A breakthrough of the Sunkoshi Marin Diversion Multi-purpose Project tunnel has been made... More Information

Toronto's Eglinton Crosstown extension moves closer to tunnelling completion

The project is being delivered by Infrastructure Ontario and Metrolinx. West End Connectors was awarded the C$729M (£425M) contract to design, build ... More Information

_Fehmarnbelt tunnel program hits major milestone

DEME Group said that the Fehmarnbelt tunnel project, one of Europe's largest infrastructure projects, has achieved a significant milestone with ... More Information

The incredbile new £12bn mega-tunnel that could end traffic chaos in world famous city

Construction on the £12.63 billion mega-tunnel has already begun and it is expected to be open in 2035. · Animation for The Hudson River Tunnel project. More Information

Great Lakes Tunnel Project makes progress

Ready to move forward. Enbridge is preparing to begin tunnel construction as soon as possible, following receipt of environmental permits ... More Information

Hudson Tunnel Project is expected to create 95,000 jobs

The report is based on research done on behalf of the Gateway Development Commission. “The Hudson Tunnel Project is the most pressing infrastructure ... More Information

The $2.8BN Megaproject Dividing London

London is building a controversial new tunnel under the River Thames. Head to https://brilliant.org/TheB1M/ for a 30-day free trial + the first 200 people will receive 20% off their ... More Information

Namma Metro: Underground tunnel work on Pink Line 95% complete

This underground portion includes the ambitious task of constructing 20.992 km of twin tunnels. Progress is also underway on the construction of 18 ... More Information

How an ancient water tunnel design is cooling 21st-century streets

In Seville, 3,000-year-old underground technology is being transformed in modern day air-conditioning. An aqueduct at the unopened CartujaQanat pilot ... More Information

Frederick Douglass Tunnel Program B&P Tunnel Replacement Project

Project Description: Proposed utility and roadway relocations include civil work to support the construction of Amtrak's Frederick Douglass Tunnel. More Information

Fehmarnbelt | Purpose-built vessel arrives to line tunnel trench with gravel 'cushion'

The Fehmarnbelt Fixed Link is a new road and rail tunnel being constructed between Denmark and Germany. It will comprise 89 precast concrete ... More Information

Successful Breakthrough of Gudauri Tunnel in Georgia's North-South Corridor KK Highway Project

KAZBEGI, Georgia, April 23, 2024--The 10-kilometer LOT1 Section is constructed by China Railway Tunnel Group Co., Ltd., of which the Gudauri ... More Information

Construction of Shinku La Tunnel to bolster all-weather connectivity in Ladakh Rising Kashmir

Leh, Apr 21: Member of Parliament from Ladakh, Jamyang Tsering Namgyal, announced that work on the strategically vital Shinku La Tunnel is set to ... More Information