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

Portland's West Side Big Pipe North Drive is Completed

Portland's West Side Big Pipe North Drive is CompletedA Herrenknecht Mixshield TBM named Lewis (machine S-232) has broken through on 31st August into Confluent shaft on Swan Island after a 4-month ... More Information

Dublin Port Tunnel Breaks Through

Dublin Port Tunnel Breaks ThroughThe Herrenknecht EPB TBM excavating the second tube of the Dublin Port tunnel broke through into the reception pit at Whitehall on the 18th August, 2004. The event ... More Information

Tunnel Collapse Kills 29 in India

Tunnel Collapse Kills 29 in IndiaTwenty-nine labourers have been killed on 2nd August after a tunnel shaft collapsed in the Himalayas as part of the works for the Tehri hydro project in the northern ... More Information

New Personnel Vehicle from Normet

New Personnel Vehicle from NormetThe new RBO is a pioneering vehicle designed and built from Normet's experience over 40 years of underground mobile equipment production. Extreme conditions call for ... More Information

Lovat TBM Breaks Through Upper Reach Tunnel of NEIS - us/29

Lovat TBM Breaks Through Upper Reach Tunnel of NEIS - us/29The Traylor / J. F. Shea / Frontier Kemper / Kenny joint venture broke through on 16th July the 3.3 km Upper Reach tunnel of the North East ... More Information

Atlas Copco to Acquire Baker Hughes Mining Tools

Atlas Copco to Acquire Baker Hughes Mining ToolsAtlas Copco North America Inc. has signed an agreement to acquire Baker Hughes Mining Tools, a division of Hughes Christensen, a division of Baker ... More Information

Hook Fiber Goes Global

Hook Fiber Goes GlobalFrom its manufacturing base in Seoul, Korea, Hookfiber International Corporation (HIC) is bringing more competition into the steel fibre concrete and shotcrete reinforcement ... More Information

Robbins Breakthroughs in Sydney

Robbins Breakthroughs in SydneyTwo breakthroughs in two days, on July 27th and 29th, made for an eventful week on the Epping to Chatswood Rail Line project in Sydney, Australia. Thiess-Hochtief ... More Information

Wirth-NFM Group To Build TBM for Pajares Tunnel in Spain - es/55

Wirth-NFM Group To Build TBM for Pajares Tunnel in Spain - es/55The FCC / Necso JV has placed an order with the Wirth-NFM Technologies Group for one TBM to be used to drive one of the two parallel ... More Information

Wirth TBM Breaks Through Sabugal-Meimoa Water Tunnel

Wirth TBM Breaks Through Sabugal-Meimoa Water TunnelA Wirth hard rock TBM broke though a tunnel on 23rd June for the Rural Development and Irrigation Institute under the Portuguese Ministry of ... More Information

MHI Receives Order for Two TBMs from China - cn/28

MHI Receives Order for Two TBMs from China - cn/28Mitsubishi Heavy Industries has received an order to supply two earth pressure balance shield tunnelling machines to China Construction First Group ... More Information

China and Argentina to Build Tunnel to Link Atlantic and Pacific - ar/20 & cl/24

China and Argentina to Build Tunnel to Link Atlantic and Pacific - ar/20 & cl/24China and Argentina signed on 29th June an agreement in principle for building a 13.9 km tunnel across the Andes ... More Information

Wirth / NFM Technologies Group Creates Subsidiary in Spain

Wirth / NFM Technologies Group Creates Subsidiary in SpainThe Wirth / NFM Technologies Group has created NFM-Wirth Service S.A., a subsidiary located in Madrid. The new company has been operational ... More Information

Railway Concessionaire Orders Perthus TBM with Option for Second Machine - fr/16 & es/21

Railway Concessionaire Orders Perthus TBM with Option for Second Machine - fr/16 & es/21Herrenknecht has received an order from TP Ferro, the concession company set up by ACS-Dragados of Spain ... More Information

Germany and Denmark Sign Declaration on Fixed Baltic Link

Germany and Denmark Sign Declaration on Fixed Baltic LinkThe German and Danish transport ministers, Manfred Stolpe and Flemming Hansen, signed on 23rd June a declaration to pursue a fixed road and ... More Information

Caterpillar to Hold Live Demo of Tunnelling Excavator

Caterpillar to Hold Live Demo of Tunnelling ExcavatorAfter the high-level attention the 325CR tunnelling excavator got at the Bauma fair in Munich, Cat will run a live tunnelling construction ... More Information

Nusantara Tunnel Project in Indonesia Needs Experts

Nusantara Tunnel Project in Indonesia Needs ExpertsPT Nusantara Tunnel Indonesia is currently preparing to construct a 33 km subsea twin tunnel crossing the Sunda Strait in Indonesia. The tunnel ... More Information

Gjerstad for toughness, durability, and a long working life

Gjerstad for toughness, durability, and a long working lifeMost people in the tunnelling industry associate the name Gjerstad with side-tipping buckets, an item that they have produced for nearly 40 ... More Information

At the Heart of the Lötschberg

At the Heart of the LötschbergTwenty minutes are necessary to cover the 7 km southward between the Mitholz entrance of the Lötschberg base tunnel and the worksite to Ferden. Consortium Satco, a JV ... More Information

Black Diamond Cutters Take on the World

Black Diamond Cutters Take on the WorldBlack Diamond Cutters, manufactured in the New South Wales town of Artarmon, Australia, have been a growing influence on Asia Pacific TBM projects over the ... More Information

Squeezing Ground Obliges to Innovate at Gotthard Base Tunnel

Squeezing Ground Obliges to Innovate at Gotthard Base TunnelThe 800 m Sedrun shaft enables to descend to the heart of the Gotthard base tunnel in 67 seconds, at a speed of 12 m/sec. The elevator has ... More Information

Harvey Parker - ITA President with a Mission

Harvey Parker - ITA President with a MissionDr Harvey W. Parker, PE, a tunnel and geotechnical engineer in private practice, has been elected to a three-year term as President of the International ... More Information

Spain Inaugurates First Phase of Test and R&D Tunnel

Spain Inaugurates First Phase of Test and R&D TunnelVicente Alvarez Areces, the president of Asturias in northern Spain, inaugurated on 25th May a EUR1.3 million high temperature fan test ... More Information

Goodbye WT, hello TTC!

Goodbye WT, hello TTC!April edition of World Tunnelling magazine was the last of the series, and the title has closed after some 150 issues. Launched in March, 1988, WT was well-received by both ... More Information

Sandvik Tamrock Wins Order for Tunnelling Jumbos - cn/61

Sandvik Tamrock Wins Order for Tunnelling Jumbos - cn/61Sandvik Tamrock has signed a supply contract with the Leighton-Kumagai JV to deliver five new Tamrock Axera tunnelling jumbos for Route 8 ... More Information

Four Cat 330C HD Special Application Excavators on the World's Longest Tunnelling Project

Four Cat 330C HD Special Application Excavators on the World's Longest Tunnelling ProjectThe Sedrun intermediate adit is one of the most spectacular sections of the 2 x 57 km Gotthard base tunnel in ... More Information

France and Italy Sign Lyon-Turin High Speed Rail Link Agreement

France and Italy Sign Lyon-Turin High Speed Rail Link AgreementFrance and Italy on 5th May signed an agreement on the financing of a EUR12 billion transalpine high speed rail link between the cities ... More Information

Austria and Italy Sign Agreement on Brenner Base Tunnel

Austria and Italy Sign Agreement on Brenner Base TunnelHubert Gorbach, the Austrian deputy chancellor and minister for transport, innovation and technology, and Pietro Lunardi, Italy's minister for ... More Information

EU Welcomes New TEN Guidelines

EU Welcomes New TEN GuidelinesThe European Parliament and Council adopted 30 priority projects of the Trans-European transport Network (TEN) on 21st April, a few days before the enlargement of the ... More Information

Lovat Launches TBM in Singapore

Lovat Launches TBM in SingaporeDowner Engineering has launched a refurbished 6.15 m-diameter Lovat TBM, model RMP242SE Series 18500, for the Singapore cable tunnel contract C302, section from West ... More Information

Annual Tunnel Test Results Disclosed as EU Adopts New Directive on Safety

Annual Tunnel Test Results Disclosed as EU Adopts New Directive on SafetyADAC, the German motoring club, has presented the results of its sixth annual tunnel test survey since 1999. This year's ... More Information

Three Killed, One Missing at Singapore Metro Collapse

Three Killed, One Missing at Singapore Metro CollapseThree workers, one Malaysian, one Chinese and one Singaporean, have been killed on 20th April at a metro collapse on a Circle Line worksite in ... More Information

Eurotunnel Sells TBM as French Board is Appointed

Eurotunnel Sells TBM as French Board is AppointedAn Howden TBM used to build the Channel tunnel that links the south of England and France has been sold by online auction site eBay. The 580t machine ... More Information

Safer European Road Tunnels

Safer European Road TunnelsThe European Parliament will vote on 20th April a second reading recommendation on proposals to improve the safety of tunnels on the trans-European road network. The ... More Information

Berlusconi Attends Groundbreaking Ceremony of Base Tunnel on Bologna-Florence Motorway - it/21

Berlusconi Attends Groundbreaking Ceremony of Base Tunnel on Bologna-Florence Motorway - it/21Italian Premier Silvio Berlusconi and minister for infrastructure and transport Pietro Lunardi ... More Information

Kranji Tunnel Breaks Through in Singapore

Kranji Tunnel Breaks Through in SingaporeA Herrenknecht 4.88 m-diameter EPB TBM, machine S-171, has successfully completed the 4.8 km south drive of the Kranji tunnel as part of Contract T-05 for ... More Information

Page:

Tunnelling News

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information

Ground preparation for Lower Thames Crossing tunnelling

Work is ongoing to overcome sub-optimal ground conditions in preparation for the start of tunnelling on the Lower Thames Crossing in late 2028, according to the project’s tunnels director... More Information

LA Metro approves massive $25B underground rail line to bypass 405 Freeway

The LA Metro Board unanimously approved an underground heavy rail line to connect the San Fernando Valley and the Westside, bypassing the congested 405 Freeway. The nearly 13-mile route, ... More Information

TUNNEL VISION Mega £7.4bn undersea tunnel connecting two CONTINENTS just got one step closer

A MAJOR £7.4 billion underwater tunnel connecting two continents has taken a step closer to construction. Experts have said the 24-mile tunnel is “technically viable”, paving the way for ... More Information

TBM breakthrough in Sydney

Tunnel boring machine (TBM) Jane Starkey successfully completed her 1.2km underground journey through challenging Sydney sandstone... More Information

Hochul announces $25 million for Harlem crosstown subway tunnel design

At E. 120th St., a pair of tunnel-boring machines — currently under construction in Germany — will bore new, 8,400-foot tunnels north from the end ... More Information

Tunnelling under the Yarra River

Our two Tunnel Boring Machines (TBMs) will soon be travelling underneath the Yarra River... Approximately 300 metres of the 6.5 kilometre North East Link will be under the Yarra ... More Information

The Boring Company says its tunneling machine is 'ready to mine in Nashville'

The Music City Loop project is aimed at transporting people from Nashville International Airport to Lower Broadway in roughly 10 minutes. By Li ... More Information

Norway Is Building the World's Longest and Deepest Tunnel Beneath the Sea

The Rogfast project, short for Rogaland Fixed Link, is an underwater road tunnel being built beneath Norway's fjords as part of the E39 coastal ... More Information

Future engineers become 'TBM Captains' for Suburban Rail Loop

Tunnel Boring Machines (TBMs) that will begin work this year. The tour of the eastern tunnel entrance was part of a long-term initiative, with ... More Information

Image gallery: Civil works completed on HS2's longest tunnel

Main construction on the Buckinghamshire structure began in May 2021 with the launch of two 2,000-tonne tunnel boring machines (TBMs), named Florence ... More Information

The Boring Company Launches Free Tunnel Contest: AI Applications for Smart Infrastructure

According to Sawyer Merritt on Twitter, The Boring Company has announced a contest to build a one-mile tunnel for free, inviting proposals for ... More Information

Out of sight: spectacular HS2 tunnels offer glimmer of hope for stalling project

Despite much soul-searching over UK’s inability to build infrastructure, two sections of HS2 under Chilterns are being hailed for their engineering... More Information

HS2 January 2026 update

We’re making progress building the main infrastructure for the new line. We’ve completed 80% of tunnelling and are working on major bridges, viaducts and embankments, and HS2’s new ... More Information

Implenia Secures EUR 350 Mln Projects For Bridges, Tunnel Works In Germany

Tunnel to join motorway sections and connecting roads. The Swiss construction and real estate company said the Peene Bridge project in Wolgast, ... More Information

Incredible new $7.9bn mega rail and road tunnel to be the world's longest

The safety of our workers is of utmost importance during the construction of the Fehmarn Belt Tunnel. We will await the findings of the ... More Information

TBM launch from Rukanpura soon as metro work gains pace

The tunnel boring machine (TBM) for the underground network is likely to be launched from Rukanpura on Bailey Road, which falls under Corridor I ... More Information

World's largest-diameter boring machine used for Yangtze River railway tunnel

China's domestically developed, world's largest-diameter vertical shaft boring machine 'Qiming' was officially put into operation in Taicang City ... More Information

HCMC approves sea-crossing route with undersea tunnel between Can Gio and Vung Tau

Ho Chi Minh City has approved a strategic proposal by Vingroup to construct a direct sea-crossing road connecting the Can Gio coastal urban area with Vung Tau beach town, cutting travel ... More Information

Changi Airport’s new underground link to take passengers from future T5 to T2 in 4 minutes

SINGAPORE – Passengers at the future Changi Airport Terminal 5 can expect to reach Terminal 2 in four minutes via the airport’s new underground link... More Information

SRL inspires TBM Captains - Victoria's Big Build

Tunnel Boring Machine (TBM) Captains. When SRL East opens in 2035 ... Construction of SRL East is powering ahead, with more than 3000 people ... More Information

Beneath winter's fjords: 17 miles of rock, 1300 ft deep

Rogfast tunnel construction beneath Norway's winter fjords, 17 miles long and 1,300 feet deep,. Credits: Ground Engineering. For years, the E39 ... More Information

Massive Sinkhole Opens Near $26 Billion Tunnel Project in Melbourne

A massive sinkhole has suddenly opened up in Melbourne near a major highway tunnel construction site, sparking safety fears and halting ... More Information

The world's longest expressway tunnel: China's Tianshan Shengli Tunnel

At the same time, the project also implemented China's first 'three-tunnel parallel construction' plan, which increased the number of workfaces. At ... More Information

'Not really where you want to be': Ground preparation for Lower Thames Crossing tunnelling

The Lower Thames Crossing is a major new road and tunnel project in the UK, intended to alleviate congestion at the Dartford Crossing and enhance. More Information

Funding problems affect metro line extensions

In the Athens metropolitan area, construction of Line 4 is continuing, with the Avax-Ghella-Alstom consortium saying the two tunnel-boring machines ... More Information

Transport Minister inspects progress on Cairo Metro Line 4 phase one

Four tunnel boring machines (TBMs) are in operation—two in each direction. According to the project timeline, the first TBM has reached the Grand ... More Information

Here's what happened with Toronto's Scarborough Subway Extension in 2025

SSE tunnelling, which began in January 2023, is being carried out with the largest tunnel boring machine (TBM) ever used on a Canadian transit project ... More Information

NHAI connects Tunnel No. 4 on Shimla bypass

NHAI PIU Shimla Project Director Anand Kumar, Bharat Construction ... The tunnel was constructed using the New Austrian Tunnelling Method (NATM) ... More Information

Mumbai-Ahmedabad Bullet Train Update: Palghar Tunnel Breakthrough Achieved

NHSRCL Bullet Train Project | India First Bullet Train Update: Last year, the Ministry of Railways achieved a breakthrough in the construction of ... More Information

Main tunnel works connecting future Changi Airport T5 to existing T2 completed

Main tunnel works connecting the future Terminal 5 to the existing Terminal 2 are completed, as the Changi East development gathers pace... More Information

Testing completed on Hudson River Tunnel boring machines

The project calls for construction of 9 miles of passenger-rail track between New York ... More Information

World's longest motorway tunnel finally opens in £3BILLION project

The Tianshan Shengli (Victory) Tunnel, located in the Tianshan Mountains of Xinjiang, China, measures some 22 kilometres – roughly 13.75 miles – and ... More Information