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Stuttgart 21 project starts in Germany

Stuttgart 21 project starts in GermanyWork on the Stuttgart 21 project finally started on 02.02.2010. Initially, the existing Stuttgart main station will be replaced with a subsurface station 12m ... More Information

Castellanza railway tunnels open in Italy

Castellanza railway tunnels open in ItalyThe Castellanza tunnels on the Milan Cadorna-Saronno-Busto Arsizio-Malpensa line operated by Ferrovie Nord Milano opened on 30.01.2010. The two parallel ... More Information

Aker Wirth TBM for Switzerland

Aker Wirth TBM for Switzerland Aker Wirth has been commissioned to construct and deliver a gripper tunnel boring machine (TBM) by ARGE Zugangsstollen Limmern (AZL). The order has a total value of ... More Information

Elasto Plastic Concrete in Atlantic Ocean tunnel

Elasto Plastic Concrete in Atlantic Ocean tunnelMore than ten major tunnelling projects in Norway are benefiting from the use of Barchip structural synthetic fibre to reinforce their shotcrete ... More Information

Ravnehei tunnel commissioned in Norway

Ravnehei tunnel commissioned in NorwayOn 24.11.2009 the 7 km Hanesund-Sande section on road Rv 465 opened, including the 3.3 km-long Ravnehei tunnel between Kjorrefjord and Ulland in Farsund ... More Information

SELI opens branch in Hong Kong

SELI opens branch in Hong KongThe new SELI branch office at 28 Canton Road, Unit 408A - Lippo Sun Building, Kowloon, HKSAR will serve as an immediate reference contact for all the company's projects ... More Information

Line B extension of the Lyon metro

Line B extension of the Lyon metroIn July 2009 the JV headed by Chantiers Modernes Rhone-Alpes, a subsidiary of Vinci Group, with the nine companies SPIE Batignolles, TPCI, Dodin Campenon Bernard ... More Information

Salerno-Reggio Calabria motorway A3 design approval

Salerno-Reggio Calabria motorway A3 design approvalOn 28.01.2010, Anas approved the executive design and the start of work on the third mega lot, third part of the Salerno-Reggio Calabria motorway ... More Information

Burata railway tunnel excavation completed

Burata railway tunnel excavation completedOn 26.01.2010 excavation of the 4,068 m-long, 85 sq m twin-track Burata tunnel was completed. Burata is on the 6.4 km Ourense to Amoeiro section of the ... More Information

Innovations at Bauma 2010

Innovations at Bauma 2010The 29th Bauma takes place in three months time at Neue Muenchen Messe, from 19-25 April. The exhibition is sold out, with around 3,000 firms showing their goods. Some ... More Information

NFM Technologies improves on Spanish record

NFM Technologies improves on Spanish recordWhen TBMs of sizes greater than 9 m-diameter complete more than a kilometre in a month, the talk turns to records. NFM Technologies already held the ... More Information

Telvent tunnel management system for Brazil

Telvent tunnel management system for BrazilSpanish IT firm Telvent will install a tunnel management system on the El Morro Alto tunnels in Brazil to enhance safety and reduce accidents.Under the ... More Information

Work starts on Caldecott fourth tube

Work starts on Caldecott fourth tubeCaldecott tunnel is on Route 24 between Oakland and Orinda in California, US. It handles 160,000 vehicles/day through its three tubes, and is overloaded. Work is ... More Information

Madrid-Castilla La Mancha-Valencia-Murcia high speed line progress

Madrid-Castilla La Mancha-Valencia-Murcia high speed line progressExcavation has been completed at the 2,437 m-long El Regajal rail tunnel on the 4.7 km Aranjuez-Ontígola section of the ... More Information

Robbins EPB assembled at Mexico jobsite

Robbins EPB assembled at Mexico jobsiteMexico City officials have celebrated the erection of the country's largest ever TBM with a cutterhead turning ceremony. Next week, the 10.2 m-diameter Robbins ... More Information

Portugal court suspends Marao tunnel construction

Portugal court suspends Marao tunnel constructionConstruction of the twin-tube 5,655 m-long Marao motorway tunnel on the new Amarante-Vila Real highway in Portugal has been suspended following ... More Information

Padley & Venables worldwide

Padley & Venables worldwidePadley & Venables is one of the largest international manufacturers of a wide range of quality tools and bar steels for use in the mining, tunnelling, quarrying, ... More Information

GIA working well in Hong Kong small diameter drainage tunnels

GIA working well in Hong Kong small diameter drainage tunnelsContractor Dragages-Nishimatsu has taken delivery of a fleet of GIA locomotives, shuttlecars and Haggloaders to assist in small diameter ... More Information

Devil's Slide improvement

Devil's Slide improvementOwned and operated by Caltrans, the Devil's Slide project is located on State Route 1 in San Mateo County between the City of Pacifica and the town of Montara, California. ... More Information

Terratec sponsors tunnelbuilder.com

Terratec sponsors tunnelbuilder.comTerratec, our old friends from Tasmania, are starting 2010 with a bang, sponsors of tunnelbuilder.com! For 20 years Terratec has been manufacturing Total ... More Information

Singapore Downtown Line progressing

Singapore Downtown Line progressingContractor Soletanche Bachy is excavating trenches for the slurry walls that will contain the important Bugis interchange station on the new 40 km-long, 33 ... More Information

New guidelines for safety in Italian road tunnels design

New guidelines for safety in Italian road tunnels designANAS has published updated guidelines for safety in Italian road tunnels design, with more information about Italian Risk Analysis Method and ... More Information

Korea Mould for precasting equipment

Korea Mould for precasting equipmentKorea Mould supplies high quality segment lining products for the world's tunnelling industry and a range of similar products for railway, pipejacking, spun ... More Information

Normet increases investment in tunnelling market

Normet increases investment in tunnelling market2009 proved to be a good year for Normet, promoting the decision to invest another EUR1 million at their plant in Iisalmi, Finland. 2010 has started ... More Information

Petrobras prepares Gastau tunnel

Petrobras prepares Gastau tunnelPetrobras has already contracted for a 6 m-diameter tunnelling machine in Germany for the excavation of the underground portion of the 98 km-long Gastau gas pipeline ... More Information

Twenty years of Terratec

Twenty years of TerratecIn 1990, Tony Peach and Al Jones, after long experience working on projects around the world with The Robbins Company and its affiliates, decided to move to Australia. ... More Information

Jondal tunnel length decided

Jondal tunnel length decidedThe alignment and length of Norway's Jondal tunnel has finally been decided. The tunnel will be 9,970 m-long and will run through Kvinnherad and Jondal municipalities. ... More Information

IPS Group New Year greetings

IPS Group New Year greetingsThe IPS group would like to extend best wishes for a Happy and Prosperous New Year to all our clients and personnel.As we embark on our 22nd year in business as an ... More Information

Terratec celebrates 20th anniversary

Terratec celebrates 20th anniversaryTerratec, the renowned Australian designer and manufacturer of TBMs, raise borers, and specialized tunnelling and mining systems, is celebrating its 20th ... More Information

Breakthrough at Gondar Station on Rome Metro B1

Breakthrough at Gondar Station on Rome Metro B1On 03.12.2009 the 6.76m-diameter EPB TBM (odd track) entered the Gondar station of the B1 Metro line in Rome, having started its drive at Conca d'Oro ... More Information

Design approval for refurbishment of Fossino tunnel

Design approval for refurbishment of Fossino tunnelANAS has approved the design for A3 Salerno-Reggio Calabria motorway, km 148,800 - 153,400 section, between Fossino tunnel and Laino Borgo exit in ... More Information

Sandvik rigs score in Indian oil storage project

Sandvik rigs score in Indian oil storage projectFour Sandvik DT 820 underground jumbo drill rigs are being used for the construction of India's first underground crude oil storage cavern, located at ... More Information

Intertunnel 2010 gains pace

Intertunnel 2010 gains paceAs the only Italian exhibition dedicated exclusively to the tunnelling industry, Intertunnel is drawing some of the great names to Torino for 8-10th June, 2010. Palazzoli ... More Information

Breakthrough of Barritteri tunnel on the A3 Salerno-Reggio Calabria

Breakthrough of Barritteri tunnel on the A3 Salerno-Reggio CalabriaOn 04.12.2009, the Consortium Salerno-Reggio Calabria, composed of Impregilo and Condotte, broke through the EUR105 million, 2.5 ... More Information

Hedinsfjardargong opening delayed

Hedinsfjardargong opening delayedAt the beginning of April, 2009, the last 40 m of the Hedinsfjardargong tunnel between Ólafsfjördur and Siglufjördur in north Iceland was blasted open. The tunnel ... More Information

New Zealand Rosedale sewer outfall holed

New Zealand Rosedale sewer outfall holedThe 3.3 m-diameter EPB employed by McConnell Dowell on the 2.95 km-long Auckland Rosedale outfall has holed through into the prepared subaqueous shaft, some ... More Information

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Tunnelling News

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

Cross-river tunnel of Nanjing Metro Line 4 Phase II completes tunneling

This photo taken on Dec. 27, 2025 shows the rear of the "Xinzhengcheng" tunnel boring machine at the construction site of Nanjing Metro Line 4 ... More Information

Tunnels Design and Construction Market is Going to Boom

HTF Market Intelligence projects that the global Tunnels Design and Construction market will expand at a compound annual growth rate (CAGR) of 6.80% from 2025 to 2032, from 72 Billion in ... More Information

Longest tunnel in the world costing £7billion will connect 3 European cities

The Brenner Base Tunnel is currently under construction and will connect the countries of Austria and Italy. The impressive tunnel, which is set ... More Information

Georgian Officials Mark Completion of Railway Modernization, Hoping to Boost Transit

The works also included the construction of the 8,300-meter dual-tube tunnel near Kvishkheti, 10 bridges, six tunnels, and around 100 engineering ... More Information

Israeli municipality approves budget for new tunnel project south of Jerusalem

The Jerusalem Governorate said that the project aims to connect the Har Homa settlement, built on Jabal Abu Ghneim land, to the Begin bypass road near ... More Information

Megaprojects Under Construction Around World In 2026

Described as the largest road tunnel in the U.K., the Lower Thames Crossing will link Tilbury in Essex via a tunnel underneath the Thames with ... More Information

Delhi Metro expansion: Cabinet approved Rs 12,015 crore project

The project, planned over a construction timeline of three years, will be executed largely underground using tunnel boring machines to minimise ... More Information

World's Longest Expressway Tunnel to Open, Linking North and South Xinjiang

Engineers used innovative methods and specially designed machines called tunnel boring machines (TBMs) to dig through hard rock faster and safer than ... More Information

The huge £21bn mega-tunnel that goes right through the middle of a mountain

Huge boring machines will create a 57.5km (35.7mile) tunnel through the Alps to connect French and Italian high-speed rail networks and link Lyon ... More Information

Rome digs deep for railway that burrows beneath the Colosseum

Tunnellers used lasers to check whether ancient columns at the nearby Forum were not wobbling as their 300ft long tunnel boring machine churned ... More Information

World’s largest-diameter high-speed railway shield tunneling machine reaches milestone

The world's largest-diameter high-speed railway shield tunneling machine independently developed by China, “Linghang,” for the Chongming-Taizhou ... More Information

Third circuit on £1bn London Power Tunnels 2 project energised

Electricity has begun flowing through a new section of National Grid's London Power Tunnels 2 (LPT2) project after the energisation of a ... More Information

Westmead metro station cavern formwork the biggest in the southern hemisphere

Crews are now retrieving the 1,200-tonne Tunnel Boring Machines (TBMs) that arrived beneath Westmead in September and October, lifting each machine ... More Information

Webuild: excavation begins on three tunnels for Salerno-Reggio Calabria HS/HC Railway

All four TBMs planned for Lot 1A Battipaglia–Romagnano section are operational with launch of latest three Joining TBM Partenope, already active, are Leucosia and Ligea, whose names were ... More Information

SELI Overseas: 75 Years of Tunneling with TBMs

From Channel Tunnel to the Brenner Tunnel: When Tunneling Is Synonymous with Innovation ... SELI TBM at work on the construction site... More Information

Road realignment is major step for HS2, says firm

HS2 Ltd A view of the realigned B4525 on an overcast day. · HS2 Ltd An aerial view of the construction of Greatworth tunnel showing major earthworks ... More Information

Amtrak has made real progress in East River Tunnel rehabilitation

The tunnel has been stripped down to the concrete liner. Westbrook was told the project isn't just about modernizing and replacing what was, but also ... More Information

Madrid invests EUR 123 million in new metro stations on Line 11

TBM Mayrit enters into action in 2026 · November 2025 – February 2026: assembly of the tunnel boring machine in Comillas Park (Carabanchel district) ... Facebook Twitter Flag as ... More Information

Jerusalem Light Rail Construction Advances Ahead of Major Tunnel Work

Local reporting on city project materials notes that “the plan calls for a 2-km underground tunnel to be built beneath the city center, including ... More Information

Why and how the Civil Works Alliance changed Sizewell C tunnel designs from Hinkley Point C

Ground conditions around Sizewell C have required intense collaboration between the project’s contractors alliance to come up with new outfall and intake tunnel design solutions... More Information

AI planning of the first railway tunnel through challenging terrain

AI plans first rail tunnel through tough terrain. Artificial Intelligence China Uses AI for the Construction of Railway Tunnels. 2025-12-08 ... More Information

Will Tunneling Projects Be The Next Big Thing For Mumbai's Public Transport?

During the interview, she also called tunnel boring machines the safest and one of the most efficient ways of doing tunelling. "Only the place of the ... More Information

Chipolbrok vessels deliver tunnel boring machines to Sydney and mineral bulk to Peru

Chipolbrok delivers TBMs for Sydney Metro on Chipolbrok Star and loads 29000t minerals in Peru on Taixing, showcasing fleet versatility... More Information

How Seequent's software solutions help to manage tunnelling data

The second phase of Singapore's Cross Island Line (CRL) metro project is under way, assisted by a suite of software from Seequent. Singapore's CRL is ... More Information

Muography to Transform Tunnel Safety Monitoring

Underwater bridge tunnels have become vital arteries for cities, enabling smooth vehicular passage beneath rivers, bays, and inland waterways. More than 200 of these structures operate ... More Information

10 longest tunnels in the world that reshaped global transportation

Modern tunnel construction involves sophisticated techniques, including tunnel boring machines and advanced geological surveying. The project ... More Information

Čučković: Construction of the tunnel boring machine for the Belgrade Metro in final phase

It is a good thing that we, for example, acquired these tunnel boring machines at a lower price than other countries... More Information

Serbia plans to borrow 2.5 billion EUR in 2026 for the construction of the Belgrade metro

It is also stated that two TBMs (tunnel boring machines), the so-called moles, have already been ordered and are expected to be delivered to ... More Information