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

Bypass tunnel for Delaware Aqueduct in New York City

Bypass tunnel for Delaware Aqueduct in New York City

Robbins will provide a 6.6 m diameter Single Shield TBM for the Rondout West Branch Bypass Tunnel. Cracking and leakage has been occurring in the Delaware Aqueduct, where it passes through ... More Information

The Grimsel tunnel

The Grimsel tunnel

On the 4th February the cantons of Bern and Valais along with with Grimselbahn AG and Swissgrid showcased the Grimsel railway line project. The new narrow gauge line will link Meiringen (BE) with ... More Information

Putzmeister will reveal the new BSF 47-5 at BAUMA

Putzmeister will reveal the new BSF 47-5 at BAUMA

Putzmeister will present its latest truck-mounted concrete pump, the BSF 47-5 at BAUMA in April. It features a 5-arm placing boom mounted on a 4-axle chassis. With a gross weight of less than 32 ... More Information

Montedomini tunnel

Montedomini tunnel

Palmieri has been included on the shortlist of the International Tunnelling Awards for the category “Technical Innovation of the Year”. This is as a result of the complexity and the ... More Information

Penang undersea tunnel delayed

Penang undersea tunnel delayed

Consortium Zenith BUCG Sdn Bhd (CZBUCG), has delayed the construction of the 7.2km undersea tunnel linking Penang to the mainland. This is due to the high volumes of traffic that need to be diverted ... More Information

Robbins Breakthrough at Chennai Metro

Robbins Breakthrough at Chennai Metro

On the 27.01.2016 the Robbins TBM EPB operated by the JV Afcons-Transtonnelstroy broke through. This happened on the downline tunnel at Chennai’s Central station after tunnelling through 1025 ... More Information

The 7th International Symposium on Tunnel Safety and Security

The 7th International Symposium on Tunnel Safety and Security

The 7th International Symposium on Tunnel Safety and Security (ISTSS) will be held in Montreal, Canada, 16 - 18th March, 2016. It covers topics such as safety level & acceptable risk as well as ... More Information

BTS presents proposal to host WTC2019

BTS presents proposal to host WTC2019

London, with its world-class facilities and abundant tourist attractions, is the destination of a bid by the British Tunnelling Society (BTS) to host the World Tunnel Congress and ITA General ... More Information

SBM LINEMIX® 3000 is setting new standards

SBM LINEMIX® 3000 is setting new standards

The high-performance concrete mixing plant SBM LINEMIX® 3000 CM 410-7 H produces concrete for precast segments or tubbings. The SBM concrete mixing plant has two main features when ... More Information

Breakthrough at the Beskyd tunnel

The breakthrough of the new 1.8km double-track Beskyd railway tunnel happened on the  21.01.2016. This tunnel is located in the Carpathian Mountains, in south-west Ukraine. The new tunnel with ... More Information

Thomson East Coast Line in Singapore

Thomson East Coast Line in Singapore

The building of the 13 km East Coast stretch of the Thomson-East Coast Line (TEL)  will connect commuters living in the eastern parts of Singapore and who are not currently directly served by ... More Information

Open consultation for a Lower Thames Crossing

Highways England is consulting from the 26 January 2016 until 24 March 2016 on options for the Lower Thames Crossing, which is a new road crossing for the River Thames connecting Kent and Essex. A ... More Information

Underground Construction Prague 2016 - Registration and Paper Submission

Underground Construction Prague 2016 - Registration and Paper Submission

The 2016 Underground Construction conference will be held in Prague from 23.05.2016 to 25.05.2016. It will showcase information about existing tunnel excavations in the Slovak Republic and important ... More Information

Robin Lindahl appointed new CEO of NORMET

Robin Lindahl appointed new CEO of NORMET

Normet are pleased to announce that Robin Lindahl (51) has been appointed as President and CEO of Normet Group, he will start in his new role not later than 1.5.2016. He will be based in Huenenberg, ... More Information

Robbins Double Shield TBM helps to revamp Montreal's water supply

Robbins Double Shield TBM helps to revamp Montreal's water supply

In 2014 the restoration of the Rosemont reservoir began again, it had been commissioned by the Municipality of Montreal,  Quebec, Canada. The tunnel construction comprises of a large diameter ... More Information

Final Breakthrough in west tube of the Ceneri Base Tunnel

On 21.01.2016 at 12.00 noon and about 700 m away from the north portal at Camorino, the final breakthrough in the 15,289 meter long west tube of the Ceneri Base Tunnel took place. The breakthrough ... More Information

Expotunnel – Third edition in Bologna

Expotunnel – Third edition in Bologna

The countdown has begun - ExpoTunnel 2016 registrations are now officially open! The third edition of the exhibition takes place in Bologna in October 2016 from the 19th until the 21st. Discounted ... More Information

ICE Engineering Underground Space 2016

ICE Engineering Underground Space 2016

ICE Engineering Underground Space 2016: Regeneration through Innovation will be held on the 15 March 2016, in Westminster, London at One Great George Street. Many current and proposed ... More Information

Hanoi Metro Rail Project in Vietnam

Hanoi Metro Rail Project in Vietnam

Hanoi, the capital of Vietnam, is experiencing impressive population growth. The municipality has set out to address this situation  and control impacts in terms of pollution, public health ... More Information

Normet to acquire MEYCO dry concrete spraying business from Atlas Copco

Normet to acquire MEYCO dry concrete spraying business from Atlas Copco

Normet, the innovative technology company offering continuous improvement to underground construction and mining processes, has agreed to acquire from Atlas Copco the assets of the MEYCO dry ... More Information

NFM delivers the TBM Federica

NFM delivers the TBM Federica

On the 14/01/2016 NFM Technologies in Le Creusot delivered the TBM Federica to Telt (Tunnel Euralpin Lyon Turin). The group of companies that are involved in the construction in Savoy, are led by ... More Information

Sandvik drill rigs aid Hydro Power tunnelling in Nepal

Sandvik drill rigs aid Hydro Power tunnelling in Nepal

In order to further improve its operations the Himal Hydro, the leading Nepalese construction company, has recently acquired a Sandvik Commando DC125R surface drill rig. The Commando DC125R is a ... More Information

Datwyler Newsletter

Datwyler Newsletter

Datwyler have released their latest newsletter to read please click here. For further information contact johannes.sutor@datwyler.com of visit the Datwyler website www.datwyler.com 02/16   More Information

Sandvik Construction Digital Yearbook is here!

Please find below the link to the Sandvik Construction Yearbook which features a variety of case stories that have been published during 2015. These show the successful cooperation between our ... More Information

Kartal-Kaynarca Metro is close to opening

Kartal-Kaynarca Metro is close to opening

Istanbul Metropolitan Municipality has said that construction of the 4.5km Kartal-Kaynarca extension of M4 Kadikoy-Kartal (21.8 km) metro in Istanbul  has been completed and test runs will ... More Information

Bertha exits the access pit

Bertha, the SR 99 TBM, is now tunneling in Seattle soil after breaking through the access pit wall on the 06.01.2016. Seattle Tunnel Partners has mined more than 22 m and installed 12 concrete ... More Information

Angren-Pop Railway Line

Uzbekiston Temir Yullari the Uzbekistan Railway Company, will shortly open their new123.1 km  electrified railway line between Agren in the Tashkent region and Pap in the Namangan region. ... More Information

ITA COSUF - Press Release

ITA COSUF - Press Release

4th European Forum of Road Tunnel Safety Officers - High Quality Meeting of Specialists in Rotterdam (The Netherlands) from 9th to 10th March 2016. There is a great demand of high quality knowledge ... More Information

Terratec TBM breaks through in Istanbul metro

Terratec TBM breaks through in Istanbul metro

Terratec is pleased to announce that its EPB TBM designated as S42 holed through on Friday, the 4th of December 2015 in Istanbul after completing the first half of its proposed run from Yenimahalle ... More Information

Terratec delivers two new micro-tunnelling systems

Terratec delivers two new micro-tunnelling systems

On 15th December 2015 TERRATEC successfully completed the Factory Acceptance Tests of two new Micro-tunnelling Systems in its facilities in Thailand for the MRTA Green Line (North) ... More Information

La Quercia-Aglio section Highway A1 now open

On  the 23.12.2015 the Sparvo tunnel had its opening ceremony. It is part of the 32km La Quercia - Aglio section of the Apennine Road Bypass to Highway A1. In this section motorists will be ... More Information

Belchen renovation tunnel – TBM will be launched next February

Belchen renovation tunnel – TBM will be launched next February

The cutter head for the front of the Herrenknecht single shield TBM was fitted on 11th November 2015. The TBM which is 13.97 m in diameter, 2000 ton in weight and has a length of 75 m will start ... More Information

WTC 2016 – Technical papers

The 2016 World Tunnel Congress will be held on 22-28  April 2016 in San Francisco, California. With as many as 600 unique technical presentations, short courses and breakout sessions visitors ... More Information

geoSURE from Sandvik turns drill rig into analyzer

geoSURE from Sandvik turns drill rig into analyzer

Sandvik Construction is adding a revolutionary rig-integrated, high precision, online rock mass analysis and visualization system to its existing offering for tunneling process optimization – ... More Information

Røssåga Main Beam sets Norwegian Milestone

Røssåga Main Beam sets Norwegian Milestone

Robbins Machine is the first TBM to break through in Two Decades. A crowd of crew members gathered to celebrate in front of a newly emerged hard rock TBM on December 10, 2015 in northern Norway, ... More Information

Midtown Tunnel - Two construction milestones achieved

In December the Midtown Tunnel’s tide gate was installed to protect the new tunnel from severe weather impacts, and the final bulkhead was removed between the Norfolk approach and Element ... More Information

Tunnelling News

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

VSM starts operation at Tilbury

The pioneering Vertical Shaft Sinking Machine (VSM) from Herrenknecht, named “Verena”, after Verena Holmes, a pioneering British mechanical ... More Information