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

Agreement reached on the Somport railway tunnel

Mitma  (Ministerio de Transportes, Movilidad y Agenda Urbana) and Nueva Aquitania signed an agreement  for the contracting and execution of a study to look at the re-opening of the Somport ... More Information

Robbins Main Beam carves out a win in Louisville

Robbins Main Beam carves out a win in Louisville

Tried and Tested TBM and conveyor complete Ohio River Tunnel  - A 6.5 km (4 mi) long tunnel for wastewater storage below Louisville, Kentucky, USA has more to it than meets the eye.  ... More Information

Press release - HS2 awards contract for first two London tunnelling machines

Press release - HS2 awards contract for first two London tunnelling machines

Press release - HS2 awards contract for first two London tunnelling machines This month the contract for the first two giant tunnel boring machines for London’s HS2 tunnels was signed with ... More Information

Atal Tunnel Inaugurated in Rohtang, Himachal Pradesh

On 03/10/2020 Prime Minister Shri Narendra Modi inaugurated the 9.02 km Atal tunnel in Rohtang, in the Pir Panjal range of Himalayas at an altitude of 3000 m (10,000 Feet) from the Mean Sea ... More Information

Sarwat Mountain tunnel completed

On 16/09/2020 the Saudi Arabia’s Saline Water Conversion Corporation (SWCC) completed the longest water pipeline tunnel project in the world. Its length is 12.445 km driven with a TBM, ... More Information

Light at the end of the tunnel: Balfour Beatty breaks through its final onshore tunnel at Hinkley Point C

Light at the end of the tunnel: Balfour Beatty breaks through its final onshore tunnel at Hinkley Point C

Balfour Beatty, alongside EDF, has celebrated a major milestone on its Hinkley Point C tunnelling and marine project, as the team successfully completed the breakthrough of the longest and final ... More Information

TBM Rachel breaks through after 7km journey from Fulham to Acton

TBM Rachel breaks through after 7km journey from Fulham to Acton

Press release - A giant tunnel boring machine (TBM) building part of London’s new super sewer has today completed its journey, marking another crucial step toward a cleaner, healthier River ... More Information

Martina TBM launched for the HS/HC railway line Brescia Est - Verona

Martina TBM launched for the HS/HC railway line Brescia Est - Verona

On the 05/10/2020 at the Lonato del Garda (BS) shipyard, the Cepav Due consortium, made up of Saipem (59%), Pizzarotti (27.27%) and Icm, the former Maltauro (13.64%), started work on the HS/HC ... More Information

Warsaw metro Line 2 progress report

Warsaw metro Line 2 progress report

By the 9th October 2020 TBM shield work for the construction tunnels for the second line of the Warsaw metro reached 2239/ 2908m for TBM Maria and 921/2,878m for TBM Anna in the East section; ... More Information


Geofluid will take place from the 15th to the 18th of September 2021 in the Piacenza exhibition center in Italy.  This international trade fair is for the drilling & ... More Information

Eurock2021 – Call for abstracts

The Organizing Committee of the Eurock 2021 invites all interested geotechnical professionals and academics to submit abstracts for the conference, deadline: October 31st 2020. Abstracts must be ... More Information

Italy - Castelbello-Colsano Ring Road

The construction of the new 3.36 km ring road between Castelbello and Colsano is ongoing. So far 1260 m of the 2494 m long Castelbello tunnel has been completed. The excavation has been carried out ... More Information

Aucklands City Link Update

Aucklands City Link Update

The first cuts have been made underground to build the Karangahape Station on the City Rail Link.  At 32 m below street level the Karangahape Station will be New Zealand’s deepest ... More Information

World Tunnel Congress in Copenhagen Postponed to 2022

The World Tunnel Congress in Copenhagen, Denmark, originally scheduled for May 2021, has been postponed to April 2022, due to the COVID 19 pandemic. The decision was taken by a vote of the 78 member ... More Information

TERRATEC Open TBM delivered for Mumbai’s Water Tunnel Project

TERRATEC Open TBM delivered for Mumbai’s Water Tunnel Project

TERRATEC’s Open TBM for the Municipal Corporation of Greater Mumbai’s (MCGM) Amar  Mahal II Tunnel Project in Maharashtra, has passed the Factory Acceptance Test (FAT),making it ... More Information

Systemair fans used in European infrastructure works

Systemair fans used in European infrastructure works

The European TEN-R (Trans Europe Netwok-Rail) programme also provides for a corridor between Amsterdam (NL) and Genoa (IT), which involves crossing Switzerland. The aim is to reduce greenhouse gas ... More Information

Milestone for Watercare’s Central Interceptor project

Milestone for Watercare’s Central Interceptor project

After ten months, the Central Interceptor TBM has passed its official Factory Acceptance Test (FAT). The TBM, which has been named ‘Hiwa-i-te-Rangi’ after a Mataariki star, has been ... More Information

Ontario Line

Ontario Line

Metrolinx has been  sharing improved plans for the Ontario Line in Toronto, as teams learn more about the geography and infrastructure, both above ground and below the surface as well as ... More Information

Grand Paris Express Line 14 South updates

Grand Paris Express Line 14 South updates

TBM Koumba breakthrough at the Pont de Rungis station   On 17/09/2020 the GIE NGE GC / Impregilo Joint Venture with the TBM Koumba achieved another milestone for the Grand Paris Express ... More Information

Tunnel cross passages near completion

Tunnel cross passages near completion

Work is nearing completion on the cross passages which connect the new metro railway tunnels between Chatswood and Sydenham. Cross passages are an important safety feature of the Sydney ... More Information

Tunnelling hits halfway mark

Tunnelling hits halfway mark

Press release - The Melbourne Metro Tunnel Project’s twin rail tunnels are now halfway to completion, with the state’s biggest ever public transport project forging ahead over the past ... More Information

In depth WHITE PAPERS from the Robbins Company

In depth WHITE PAPERS from the Robbins Company

If you need more in-depth explanations of Robbins products, browse through their white papers. These downloadable and printable papers, written by Robbins employees, cover everything from disc ... More Information


Celebrating 50 years of underground space development and research, and looking forward to the NXT 50 years. Take part in the HAGERBACH NXT 50 series of webinars and broaden your understanding on ... More Information

The WTC2020 Digital Platform

The WTC2020 Digital Platform is accessible until 23rd September 2020 at https://wtdc2020.mego.events/.  The Opening Ceremony, Landmark & Keynote Lectures, Closing of WTC2020, ... More Information

Construction momentum building on Cross River Rail Project

Construction momentum building on Cross River Rail Project

Cross River Rail is boosting the Queensland Economy by $4.1 million per day, supporting a workforce of over 2,400 and providing work for more than 400 suppliers and subcontractor companies, 90% of ... More Information

VTA’s BART Silicon Valley Phase II Extension Project: Contractor Engagement Begins

The stretch of BART Silicon Valley into Downtown San Jose and Santa Clara is entering the procurement stage of the project.  The Santa Clara Valley Transportation Authority (VTA) is reaching ... More Information

Robbins announces new webinar

On Oct 15, 2020 08:00 AM in Pacific Time (US and Canada) Robbins are hosting a new webinar called “48 Fault Zones and 26 Bar Pressure: Tunneling Turkey's Gerede Water ... More Information

E4 Bypass Stockholm update

E4 Bypass Stockholm  update

So far this year about 63% of the length of the E4 tunnel which is part of the Forbifart Stockholm project has been completed. The team working on the project have averaged about 680 meters per ... More Information

Breakthrough for the TBM Armelle on Line 16

Breakthrough for the TBM Armelle on Line 16

TBM Armelle, a TBM on the Grand Paris Express Line 16 has broken through. The TBM was originally launched from the Georges Braque shaft in October 2019 and broke through in Aulnay-sous-Bois after ... More Information

Robbins Company at WTC 2020

This year's WTC 2020 will be held virtually from September 11-17, but Robbins history in Kuala Lumpur, Malaysia is very real. Robbins is looking forward to your online visit to the country where it ... More Information

Milan’s new M4 Metro Line: tunnel excavations completed

On 09/09/20 the final breakthrough ceremony was held in the presence of authorities for the first of two TBMs involved in the construction of M4 metro line (Blue line) central section in Milan. The ... More Information



Press release - True to its commitment to innovation while embracing the “new norm”, the World Tunnel Congress 2020 will now be held fully digital, paving the way for tunnelling ... More Information

Final TBM for Tideway

Final TBM for Tideway

On 04/09/20 the last giant TBM set to create the final 5.5km stretch of London’s new super sewer has been lowered below ground. The TBM, Selina, was delivered to Tideway’s Chambers Wharf ... More Information

TERRATEC delivers its 25th TBM to India

TERRATEC delivers its 25th TBM to India

The new 3.14m diameter TERRATEC EPB TBM will empower sewage infrastructure components on the Mumbai Sewer Disposal Project Stage II Priority Works, in Mumbai, India. TERRATEC is celebrating ... More Information

TBMs arrive to dig Cross River Rail tunnels

At the beginning of August two TBMs (weight 1350 t and 165 m length)  arrived in Queensland, ready to be fitted out before being deployed to dig the Cross River Rail twin tunnels in early 2021. ... More Information

The Sydney Metro West planning process

The environmental assessment process for Sydney Metro West is being done in stages in recognition of the size of the project. Stage 1 seeks approval for station excavation and tunnelling between ... More Information

Tunnelling News

Amtrak awards construction contract for East River Tunnel rehabilitation

The $1.6 billion project calls for demolishing all existing tunnel systems down to the liner, then restoring both tubes. During the project, one tube ... More Information

Strabag in €110 million deal to equip transalpine tunnel

Austrian contractor Strabag has won a €110 million (US$120 million) to equip a transalpine tunnel linking Austria and Slovenia... More Information

19 tunnel boring machines for Manila subway set

A close-up of the tunnel boring machine head, with a diameter of 6.9 meters. ... The first cutter head of the first tunnel boring machine (TBM), named ... More Information

$16 billion Gateway Tunnel Project gets federal funding boost after years of delays

The $16.1 billion project includes a new rail tunnel linking New York and New Jersey — and is set to be open by 2035 ... More Information

Preferred bidder announced for second tunnelling contract

The global consortium of WeBuild S.p.A, GS Engineering and Construction Australia and Bouygues Construction ... Tunnel Project, North East Link ... More Information

Bechtel Picked as CM for $12.7B Single-bore BART Extension

Officials with the VTA are aiming to begin major construction and tunnelling for the $12.7-billion BART Silicon Valley Phase II Extension Project next ... More Information

Stonehenge could be put on world heritage danger list over tunnel plan

The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recommended that Stonehenge be listed as ‘World Heritage in Danger’ due to the A303 upgrade scheme and is ... More Information

World’s longest railway tunnel to reopen after a year

The tunnel closed on 10th August last year following the derailment of a freight train, and SBB has since been pushing ahead with repair work... More Information

Afcons Infrastructure Wins Bid for Thane Tunnel Project

Afcons Infrastructure secures the L1 bid for a tunnel project in Thane, marking a significant milestone in infrastructure development. More Information

Kolkata Metro: D-Wall's Construction Work At Victoria Metro Station Is Advancing Swiftly

For the tunnelling work of the stretch from the Khidderpore to Park Street stretch of this Corridor, two Tunnel Boring Machines (TBM) will be deployed ... More Information

K2D Skøyen – Vækerø

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... More Information

Massey Tunnel replacement project hits design-build proposal stage

Tunnel replacement project has finally hit the design-and-build proposal stage. The Transportation Ministry announced Wednesday that three bid ... More Information

Barhale wins £36m East London sewer remediation

Thames Water has appointed Barhale to deliver essential remediation works on a Victorian gravity sewer as it passes above the Jubilee Line and Docklands Light Railway in East London... More Information

Reaping Rewards From Continuous Innovation

In boring underground tunnels for Malaysia's MRTs, Gamuda developed the world's first autonomous tunnel boring machine (A-TBM), utilizing in-house ... More Information

5 of the longest tunnels in the world and how they were built

Since the invention of the tunnel boring machine in 1853, engineers have used advanced technology to drill, blast, and bore into the earth. From ... More Information

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