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Bekaert Obtains CE Marking for Dramix® Steel Fibres

Bekaert Obtains CE Marking for Dramix® Steel FibresBekaert conforms to European Standard and product requirements. To guarantee the quality and the strength of steel fibre-reinforced concrete in ... More Information

HI-FOG® Water Mist Fire Protection System for Tunnels

HI-FOG® Water Mist Fire Protection System for TunnelsMarioff's HI-FOG® water mist fire protection system has been fire-tested extensively for use in road tunnels, most recently in Norway ... More Information

Doubling the Pfänder Tunnel on the Trans-European Road Network

Doubling the Pfänder Tunnel on the Trans-European Road NetworkThe Pfänder tunnel is part of the main highway route A14 north of Bregenz in Vorarlberg in direction to Germany. Situated on the ... More Information

Breakthrough of Katzenberg Tunnel on Main North-South European Line

Breakthrough of Katzenberg Tunnel on Main North-South European LineEngineers celebrated the breakthrough on 30th October, 2007 of the twin Katzenberg rail tunnel on the Basel-Karlsruhe line ... More Information

Amsteg-Sedrun Section of Gotthard Base Tunnel Completed Nine Months Early

Amsteg-Sedrun Section of Gotthard Base Tunnel Completed Nine Months EarlyThe 17 km west section of the Gotthard base tunnel between Amsteg and Sedrun holed through on 17th October, 2007, with ... More Information

Reference Book about Underground Mining Methods in a New Edition

Reference Book about Underground Mining Methods in a New Edition Atlas Copco has for many decades had the ambition to provide the underground mining industry with interesting and educational ... More Information

Construction of Access Adits Underway on Lyon-Turin High Speed Line

Construction of Access Adits Underway on Lyon-Turin High Speed Line First envisaged in 1990 as a mere extension of the high speed passenger network between France and Italy, the ... More Information

Normet Goes Global

Normet Goes GlobalNormet, the Finnish manufacturer of mining equipment, is reorganizing its structure in order tobecome a truly global player in the underground market. The establishment of a new ... More Information

STUVA Conference 2007 in Cologne

STUVA Conference 2007 in CologneThe economic boom in Germany and Europe also is having a positive impact on tunnel construction. According to statistics gathered in the last few years, the ... More Information

British PM Gordon Brown Gives Go-Ahead to Crossrail

British PM Gordon Brown Gives Go-Ahead to CrossrailA project to build a GBP16 billion railway across central London was finally approved on 5th October, 2007 by British Prime minister Gordon ... More Information

Robbins Hybrid EPB TBM for Kavacik-Beykoz Wastewater Tunnels in Istanbul

Robbins Hybrid EPB TBM for Kavacik-Beykoz Wastewater Tunnels in IstanbulA 3.1 m-diameter Robbins hybrid EPB TBM in Istanbul can bore in two very different situations. The versatile machine can ... More Information

First Breakthrough on Perthus High Speed Rail Tunnel

First Breakthrough on Perthus High Speed Rail TunnelThe first, west Perthus tunnel, a major engineering project on the 44.4 km Perpignan-Figueras high speed link between France and Spain, has been ... More Information

Peter Stauffer - the face of CAT for the tunnelling industry

Peter Stauffer - the face of CAT for the tunnelling industryIn a relatively short time we at tunnelbuilder ltd came to know Peter as a great friend as well as a valued colleague. He first came ... More Information

Construction of Diabolo Project in Belgium to Start Soon

Construction of Diabolo Project in Belgium to Start SoonDiabolo, the northern connection with the Brussels-Mechelen-Antwerp route, is a next step in improving Brussels airport's accessibility by ... More Information

Monte d'Oro Tunnel Breaks Through on Road Link Between Italy and Slovenia

Monte d'Oro Tunnel Breaks Through on Road Link Between Italy and SloveniaConstruction of the motorway link between Lacotisce, in Trieste province, and the Rabuiese Pass between Italia and Slovenia ... More Information

New Low Profile Team from Atlas Copco

New Low Profile Team from Atlas CopcoThe Scooptram ST1030LP and the Minetruck MT436LP are two new vehicles designed to optimize the economic, mechanized extraction of ore in low seam ... More Information

Spain Invites Tunnelbuilder Readers to International Congress and Exhibition

Spain Invites Tunnelbuilder Readers to International Congress and ExhibitionThe Spanish Tunnelling Association (AETOS) organises an international tunnelling congress and technical exhibition in ... More Information

Herrenknecht Expands with New Plant in India and More Trainees

Herrenknecht Expands with New Plant in India and More TraineesHerrenknecht is the technology and market leader in mechanized tunnelling and the only company on the market that supplies ... More Information

Tunnelling Begins at Devil's Slide in California

Tunnelling Begins at Devil's Slide in CaliforniaDevil's Slide, a winding and precarious stretch of California's Highway 1 which soars above the Pacific Ocean, was carved into the mountain. ... More Information

Track Dualling on Milan-Lecco Rail Line

Track Dualling on Milan-Lecco Rail LineThe dualling of the Carnate Usmate-Airuno section on the Milan-Lecco rail line will improve the suburban train service provided by Line S8 from Milan via ... More Information

Lovat Receives Order for TBM for Line 9 of Beijing Metro

Lovat Receives Order for TBM for Line 9 of Beijing MetroLovat recently signed a contract to supply a new RME246SE earth pressure balance tunnel boring machine to the Beijing Urban Construction Group ... More Information

Long Pipejack in New Zealand

Long Pipejack in New ZealandA 55-tonne Herrenknecht AVND 1800 microtunnelling machine, painted in Canterbury colours and nicknamed 'Dora the Bora', completed the first underground stretch of ... More Information

Colombia Releases Pre-bidding Rules for South America's Longest Road Tunnel

Colombia Releases Pre-bidding Rules for South America's Longest Road TunnelColombia's national road and highway institute, Invias, published the pre-bidding rules for the studies, design, social and ... More Information

Second Stage of Big Walnut Interceptor Tunnel Breaks Through in Ohio

Second Stage of Big Walnut Interceptor Tunnel Breaks Through in OhioThe Big Walnut Augmentation/Rickenbacker Interceptor (BWARI) project is part of an overall programme for the City of Columbus, ... More Information

Conference on Design and Construction of Tunnels and Shafts for the DLR Woolwich Extension

Conference on Design and Construction of Tunnels and Shafts for the DLR Woolwich ExtensionThe Docklands Light Railway (DLR) Woolwich Arsenal extension is an integral part of Transport for London's ... More Information

New Life for Karahnjukar TBM at Ceneri Base Tunnel

New Life for Karahnjukar TBM at Ceneri Base TunnelTBM #1 that achieved successfully its task on the main headrace tunnel of the Kárahnjúkar hydropower project in Iceland will be the first Robbins ... More Information

First Concrete Element to be Placed on World's First Offshore Immersed Tunnel in Korea

First Concrete Element to be Placed on World's First Offshore Immersed Tunnel in KoreaIn 2005, construction commenced on two cable-stayed bridges, with main spans of 475 m and 230 m, and a 3.2 ... More Information

Construction of Deep Flood Relief Tunnel Under Way in Mexico

Construction of Deep Flood Relief Tunnel Under Way in MexicoThroughout the years, the regional landslides that affected the banks of the Río de la Compañía in Mexico Valley reached annually ... More Information

Malaysia Invites Contractors to Prequalify for Pahang-Selangor Water Transfer Scheme

Malaysia Invites Contractors to Prequalify for Pahang-Selangor Water Transfer SchemeContractors have until 19th September, 2007 to prequalify for the construction of the first package, which is also ... More Information

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in Milan

Ministry of Infrastructure and City of Milan Sign Agreement for Metro Lines in MilanDuring a meeting on 31st July, 2007 between minister for infrastructure Antonio Di Pietro, mayor of Milan ... More Information

TBM Finish on A86 Tunnel in Paris

TBM Finish on A86 Tunnel in ParisTunnelling on the second, 5.5 km section of the A86 double-deck tunnel linking Pont Colbert in Jouy-en-Josas, south of Versailles, and the A13 motorway in Vaucresson ... More Information

Recent Infrastructure Projects Motivate Hunter Personnel (UK) to Look to Spain for Engineering Expertise

Recent Infrastructure Projects Motivate Hunter Personnel (UK) to Look to Spain for Engineering ExpertiseAs we all know over recent years Spain has been alive with infrastructure projects ranging ... More Information

Sika and Putzmeister Apply Efficient Shotcrete and Concrete at Schmuecke Tunnel

Sika and Putzmeister Apply Efficient Shotcrete and Concrete at Schmuecke TunnelThe two 1,720 m and 1,729 m-long tunnels are part of the new construction section of the A 71 motorway between ... More Information

Lok Ma Chau Spur Line Inaugurated in Hong Kong

Lok Ma Chau Spur Line Inaugurated in Hong KongThe Kowloon-Canton Railway Corporation (KCRC) on 15th August, 2007 celebrated the commencement of service of Lok Ma Chau spur line of the East ... More Information

Mega Tunnel Projects: Myth or Reality?

Mega Tunnel Projects: Myth or Reality?At first view, mega tunnel projects seem science fiction, a theatre of dreams, with little connection to reality. And yet some of them are already in operation ... More Information

Kops II Hydro Nears Completion in Austria

Kops II Hydro Nears Completion in AustriaIn west Austria, construction of the new 450 MW Kops II pumped storage power plant by Vorarlberger Illwerke, the project owner, is nearing completion ... More Information

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Tunnelling News

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

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