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Madrid-Barcelona-French border high-speed railway

Madrid-Barcelona-French border high-speed railwayOn 17.06.2010 the TBM Gerundi completed the first 480 m of the 3.6 km-long Girona section on the Madrid-Barcelona-French border high-speed railway. ... More Information

Tunnel Design & Construction Europe

Tunnel Design & Construction EuropeThe Tunnel Design & Construction Europe conference to be held in Zurich, Switzerland 25th-28th October 2010 will bring together international industry ... More Information

Tunnel Design & Construction Europe

Tunnel Design & Construction EuropeInternational conference scheduled for Zurich, Switzerland 25-28th October 2010. Early birds can register by 25th June 2010 and get up to EUR465 off standard ... More Information

Hits and misses

Hits and missesTen years ago, when Internet advertising was in its infancy and mega-hits were the order of the day, we started to see a variation between hits and visits. In short, hits were running ... More Information

EN12101-3 certification for large Flakt Woods JM axial fans

EN12101-3 certification for large Flakt Woods JM axial fansFlakt Woods has achieved EN12101-3 certification for 400 degrees C for 2 hours (F400) on its range of large axial fans up to 2.8 m-diameter ... More Information

Meet Babendererde Engineers at NAT in Portland

Meet Babendererde Engineers at NAT in Portland Babendererde Engineers is an independent engineering company specializing in underground tunneling. Together with the sister company in ... More Information

Normet increases production capacity in Finland

Normet increases production capacity in FinlandNormet has extended and modernized its factory at Iisalmi, Finland, signalling its recovery from the recent economic downturn in mining and tunnelling ... More Information

Herrenknecht giant EPB for Italy

Herrenknecht giant EPB for ItalyThe largest TBM ever built, a 15.55 m-diameter Herrenknecht EPB, will be used on the extension of the A1 highway between Bologna and Florence in 2011. Read the press ... More Information

Success at Brightwater conveyance tunnel in Seattle, WA

Success at Brightwater conveyance tunnel in Seattle, WAThe JV JCT (Jay Dee Contractors/Frank Coluccio Construction/Taisei Corporation) has announced that their EPB TBM is stopped just short of the ... More Information

Cooling the Tube in London

Cooling the Tube in LondonFlakt Woods has been commissioned to produce a mix of bespoke ventilation products to help improve the airflow on station concourses and in tunnels on the London Tube. For ... More Information

See you at Intertunnel in Torino!

See you at Intertunnel in Torino!The tunnelbuilder team will be at Intertunnel in Torino, Italy on June 8-10 this week, so look out for us! We will be visiting our clients to ensure they are getting ... More Information

Swiss Tunnel Congress 2010

Swiss Tunnel Congress 2010 The Swiss Tunnel Society (STS) is hosting the Swiss Tunnel Congress in the Lucerne Culture and Convention Centre from June 9-11, 2010. With nearly 800 registrations, just ... More Information

Paiesco tunnel on SS337 in Val Vigezzo opens

Paiesco tunnel on SS337 in Val Vigezzo opens The new single-bore 1,431 m-long, 9% gradient Paiesco tunnel opened on ... More Information

Final launch at B1 metro in Rome

Final launch at B1 metro in Rome On 26.05.2010, the 9.8 m-diameter EPB launched on construction of the Conca d'Oro-Jonio section, a single tube tunnel for the B1 metro line in Rome. Preparatory ... More Information

Refurbishment plans for Swiss road tunnels

Refurbishment plans for Swiss road tunnelsIn 2008 a survey by ASTRA, the Federal Roads Office, revealed that 126 of the 220 national road tunnels in Switzerland are not fully compliant with the ... More Information

Curved microtunnel success in United States

Curved microtunnel success in United StatesOn 19.05.2010 contractor Northeast Remsco Construction completed the first planned curved microtunnel in the US at Hartford, CT as part of the USD1.6 ... More Information

Stop-go in US

Stop-go in USNewspapers in the US are reporting that the Seattle tunnel will take a year longer than expected, due to long lead times on TBM delivery. End-2016 now seems to be the likely completion ... More Information

First Expomatec for Madrid in 2011

First Expomatec for Madrid in 2011The first of a series of triennial business conferences and exhibitions is scheduled for Ifema, Madrid from 17-20 May, 2011. Organised by Ifema and Grupo TPI, ... More Information

Robbins EPB claims record at Chengdu

Robbins EPB claims record at ChengduA 6.26 m-diameter Robbins EPB has achieved daily rates of 24 m in the alluvium of Chengdu metro in China, setting a record amongst the 12 machines working on the ... More Information

Google newsfeed comes to tunnelbuilder

Google newsfeed comes to tunnelbuilderTo complement our daily updates dealing with contract news, bids and awards, we have introduced a Google newsfeed which culls the best of the daily newspaper ... More Information

Work starts on Perca by-pass in Tirol

Work starts on Perca by-pass in TirolGeological investigation for the new Perca bypass on SS 49 Val Pusteria started on 19.05.2010. The project, awarded to JV Ing Mario Valdemarin (Bressanone), ... More Information

News from Turin-Lyon AV railways

News from Turin-Lyon AV railwaysThe preliminary design for the new Lyon-Turin rail link, including environmental impact study and cost analysis, is scheduled for the end of June, 2010. Click here. ... More Information

Work starts on Merano bypass in Tyrol

Work starts on Merano bypass in TyrolWork started on 14.05.2010 on Lot 1 of Merano northwest bypass between Lagundo and FS station interchanges. The JV PAC Spa (Bz), Consorzio stabile costruttori ... More Information

Inauguration of SS125 Orientale Sarda

Inauguration of SS125 Orientale SardaOn 25.05.2010 Lot 1, section Terra Mala-CapoBoi of the new SS125 Orientale Sarda, km 5,985 to km 14,765 will be opened. The 8,780 m-long section includes four ... More Information

Kishanganga TBM handed over

Kishanganga TBM handed overOn 13.05.2010 Italian manufacturer SELI handed over a specially designed 400 t DSU TBM to main contractor Hindustan Construction Company (HCC) to bore the Kishanganga ... More Information

Tunnelling on Andora-San Lorenzo section of Genoa-Ventimiglia line

Tunnelling on Andora-San Lorenzo section of Genoa-Ventimiglia lineOn 07.05.2010 in tunnelling was completed at the 3,054 m-long Bardellini tunnel at Caramagna on the Ventimiglia side of the new ... More Information

Taiwan to upgrade coastal highway

Taiwan to upgrade coastal highwayTaiwan's Council for Economic Planning and Development has approved a EUR985 million plan to upgrade the Suhua Highway, linking Yilan County and Hualien City, also ... More Information

MineArc meeting in China

MineArc meeting in ChinaAustralian manufacturer of refuges for tunnels and mines is meeting a Chinese delegation to discuss and agree trials with 11 selected underground locations. Read the full ... More Information

Lilienberg road tunnel opens in Austria

Lilienberg road tunnel opens in AustriaThe 1,134 m-long x 92 sq m section Lilienberg tunnel in Carinthia opened to traffic on 22.04.2010. The EUR22 million tunnel, excavated using NATM techniques, ... More Information

Breakthrough at Strafelter

Breakthrough at StrafelterThe first tube of Strafelter tunnel on the Route du Nord A7 motorway between Luxembourg City and Mersch was completed on 22.04.2010. The tunnel is 1,850 m-long with 200 m ... More Information

Robbins EPB TBM launches at Xi'an

Robbins EPB TBM launches at Xi'anThe Xi'an Metro system will service the urban and suburban districts of Xi'an, the 3,100 years old capital of Shaanxi province, and part of Xianyang City. Six subway ... More Information

Lake Mead TBM arrives at site

Lake Mead TBM arrives at siteThe Southern Nevada Water Authority has unveiled the 6.36 m-diameter Herrenknecht TBM that will mine a third 4.83 km-long raw-water intake at Lake Mead, the reservoir ... More Information

Fogtec fire suppression system for Channel Tunnel

Fogtec fire suppression system for Channel TunnelFogtec Brandschutz GmbH of Cologne will supply the know-how, engineering and equipment to the fire suppression project underway for Eurotunnel in the ... More Information

New Haggloader for small tunnels

New Haggloader for small tunnelsGIA will supply three of its compact Haggloader 7HR-B digging arm loaders to contractor Leighton-LNS JV for use on the HATS sewage conveyance system in Hong Kong. The ... More Information

NAT for Portland, Oregon

NAT for Portland, OregonNorth American Tunneling (NAT), the top underground construction show of the year for the Americas, takes place in Portland's Marriott Downtown Waterfront Hotel from June ... More Information

Normet presents advanced Spraymec

Normet presents advanced SpraymecNormet has introduced Spraymec 8100 VC, the most advanced model for concrete spraying in its Spraymec series. From one set-up the machine will spray concrete in a ... More Information

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Tunnelling News

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

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