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Leucosia and Ligea: the names chosen for the new TBMs on the Salerno–Reggio Calabria High-Speed Line

The contest launched to choose the names of the two new TBMs that will excavate Lot 1A Battipaglia–Romagnano of the new Salerno–Reggio Calabria High-Speed Line concluded on November 7. ... More Information

New progress on works between Apice and Hirpinia in Italy

Work continues on the new Naples–Bari High-Speed/High-Capacity (HS/HC) railway line, part of the Trans-European Transport Network (TEN-T) Scandinavian–Mediterranean Corridor. The future ... More Information

Celebrations for the completion of the main tunnel excavations in Lot H41 Gola del Sill–Pfons

On November 11, a celebration was held at the segment factory of the BBT Gola del Sill–Pfons construction site to mark the completion of the main tunnel excavation works for the Austrian Lot ... More Information

Italy - Public contest launched to name two TBMs for Lot 1A of the new AV/AC Salerno-Reggio Calabria line

Now open a public contest to choose the names of the two TBMs that will soon start excavating two tunnels on Lot 1A of the Salerno-Reggio Calabria high-speed railway. The project is being carried ... More Information

Renovation of the Engelberg Tunnel update

The Autobahn GmbH’s Southwest branch is undertaking a major structural and operational renovation of the Engelberg Tunnel on the A81 motorway near Leonberg in Baden-Württemberg, Germany. ... More Information

Italy - Breakthrough in the La Rossa tunnel on the Orte-Falconara line

Italy - Breakthrough in the La Rossa tunnel on the Orte-Falconara line

On 30 October 2025, excavators demolished the diaphragm of the 1196 m-long La Rossa tunnel in Genga (Ancona), part of the underway upgrading of the Orte-Falconara line, lot 2 Genga-Serra San ... More Information

Romania - TERRATEC TBM EPB Advances on Bucharest Metro Line 6 – South Section

Romania - TERRATEC TBM EPB Advances on Bucharest Metro Line 6 – South Section

TERRATEC reports steady progress on the Magistrala 6 Metro Project (M6) in Bucharest, where TERRATEC S67 TBM EPB is advancing through challenging sandy ground as part of the South Section: 1 Mai ... More Information

Major milestones with mega machine on the move to deliver non-stop South Road

Major milestones with mega machine on the move to deliver non-stop South Road

The River Torrens to Darlington (T2D) Project is celebrating two giant milestones in the $15.4 billion delivery of a non-stop South Road, with the successful transfer of the largest individual ... More Information

Norway - Tender procedure continues for the Stad Ship Tunnel

On 10 October, as part of the national budget proposal for 2026, the Norwegian government announced that works on the Stad Ship Tunnel would be suspended, but following the debate on 14 October the Norwegian Parliament asked the government to allow the Norwegian Coastal Administration to continue negotiations with the three bidders. More Information

TBM Emily Passes Key Factory Test for DC Water Potomac River Tunnel Project

Emily, the Potomac River Tunnel Project's final TBM, has successfully completed its factory acceptance testing. More Information

Major works underway at SRL Burwood, Australia

Contractor Laing O’Rourke recently completed site preparation works, which included moving underground services to make way for the twin tunnels and new Burwood underground station and ... More Information

Brazil - Progress on São Paulo’s metro line 2-Green

Brazil - Progress on São Paulo’s metro line 2-Green

Southern section of the Consolação tunnel excavation completed - the Conexão Paulista/Consolação CTS consortium - formed by Constran, Telar, and Sprail - has ... More Information

Switzerland - FOT Approves Expansion of the Zurich -Winterthur Railway Corridor

Switzerland - FOT Approves Expansion of the Zurich -Winterthur Railway Corridor

The Federal Office of Transport (FOT) has granted planning approval for the construction of additional infrastructure between Zurich and Winterthur. As the current Zurich - Winterthur line via ... More Information

France - Two breakthroughs for the Toulouse metro Line C!

On Monday, September 29th, at approximately 4:00 PM, the TBM Berthe de Puybusque achieved its first breakthrough at Fondeyre Station. Having traversed over 1 km from the future La Vache-Le Grand ... More Information

HS2 celebrates final Birmingham tunnel breakthrough

This morning at Washwood Heath the125-m-long TBM Elizabeth - launched in March 2024, near the Warwickshire village of Water Orton - brokethrough the 3.5-mile-long Bromford tunnel marking the completion of major tunnel excavation between London’s Old Oak Common and the West Midlands. More Information

First TBM on its way to Adelaide for the River Torrens - Darlington (T2D) project

First TBM on its way to Adelaide for the River Torrens - Darlington (T2D) project

The River Torrens to Darlington (T2D) Project has achieved a major milestone in its delivery of a non-stop South Road, with the first of three TBMs beginning its journey to Adelaide. The first TBM ... More Information

Inauguration of the Excavated Material Treatment Plant for CO11

Inauguration of the Excavated Material Treatment Plant for CO11

On October 9, 2025, TELT and the consortium GEME LT (Gestion et Emploi des Matériaux d’Excavation LYON TURIN), composed of Eurovia Alpes Agence de Savoie (lead company), ... More Information

ISAVFT 2026 - Call for Papers is Now Open!

The Call for Papers for ISAVFT 2026  has now officially been opened , a premier international forum for researchers, engineers and industry professionals to present and discuss the latest ... More Information

Delays in the construction of the Fehmarnbelt tunnel

The completion of a special vessel designed for immersing tunnel elements has been delayed to such an extent that it will be difficult to meet the target of opening the Fehmarnbelt tunnel in ... More Information

BBT - TBM Lilia Successfully Completes Excavation of the Eastern Main Tunnel

BBT - TBM Lilia Successfully Completes Excavation of the Eastern Main Tunnel

With the breakthrough achieved by TBM Lilia on October 6 at 12:40 p.m. in the municipality of Navis (Wipptal), the eastern main tunnel of construction lot H41 Sill Gorge–Pfons in the BBT ... More Information

Dublin MetroLink: A New Era for Irish Public Transport

The MetroLink project has finally cleared a major hurdle: full planning approval has been granted for what will become Ireland’s largest single investment in transport under the National ... More Information

ITA Tunnelling Awards - Announcing the 2025 Winners

 ITA Tunnelling Awards - Announcing the 2025 Winners

It was an exciting time in Belgrade, celebrating the exceptional projects and technologies presented by the ITA Tunnelling Awards finalists and congratulating the Gold, Silver and Bronze Brunel ... More Information

The Lobau Tunnel & S1 Outer Ring: Vienna’s Contested Infrastructure Ambition

Vienna and its surrounding region are at a crossroads: balancing growing transport demands with environmental preservation. Central to this tension is the Lobau Tunnel, part of the planned ... More Information

Shetland Islands Council commissions fixed-link tunnel modelling — Yell Sound picked as test case

Shetland Islands Council has moved its inter-island connectivity work into a new phase by commissioning detailed modelling to test the feasibility of subsea tunnels connecting parts of the ... More Information

Wanted - Head of Communications for the ITA-AITES!

Wanted - Head of Communications for the ITA-AITES!

Are you ready to shape the future of communication for a global organisation dedicated to tunnelling and underground space? Welcome to ITA-AITES.  To strengthen our communication, ... More Information

Thailand - TERRATEC Completes Flood Mitigation Tunnel Project in Chiang Mai

Thailand - TERRATEC Completes Flood Mitigation Tunnel Project in Chiang Mai

TERRATEC is pleased to announce the successful completion of tunnelling works for the Chiang Mai Flood Mitigation Project (Phase 2) in northern Thailand. The project, commissioned by the ... More Information

Completed, the excavation of the San Lorenzo Tunnel on New Naples–Bari High-Speed/High-Capacity line

A new significant milestone has been reached for the new Naples–Bari High Speed/High Capacity railway line: the excavation of the San Lorenzo Tunnel has been completed. The tunnel is 1,650 ... More Information

Poland: Completion of Tunnel Segment Production for S19 Rzeszów Południe–Babica Section

Poland: Completion of Tunnel Segment Production for S19 Rzeszów Południe–Babica Section

Production of tunnel lining segments for the S19 Rzeszów Południe–Babica expressway section has been successfully completed at the prefabrication hall in Lutoryż, the site of the future ... More Information

Vietnam - TBM n.2 reaches S10 - Cat Linh station on the Hanoi metro line 3

Vietnam - TBM n.2 reaches S10 - Cat Linh station on the Hanoi metro line 3

According to the Hanoi Urban Railway Management Board (MRB), at exactly 11:00 a.m. on 15/09/2025 the TBM EPB n.2 named Tao Bạo - designed and manufactured by Herrenknecht - officially completed the ... More Information

Approved the alignment of metro line 5 in Hanoi from Van Cao to Hoa Lac in Vietnam

The Vice Chairman of the City People's Committee Duong Duc Tuan has just signed and issued Decision N. 4602/QD-UBND approving the alignment and construction site locations for Hanoi metro line 5, ... More Information

TBM Mary breaks through in USA for the second tunnel of the HRBT extension project

On 24 September 2025 - after 29 months of boring - the TBM Mary completed the second bored tunnel at the 'HRBT (Hampton Roads Bridge-Tunnel) in Virginia, installing 1,193 rings. ... More Information

Snowy 2.0 named fourth TBM after Tumut student

Snowy 2.0 named fourth TBM after Tumut student

The fourth mega TBM on the Snowy 2.0 project will be named after an aspiring engineer Monica Brimmer, 15 and talented Tumut High School student who scooped top prize in an Indigenous art and ... More Information

BBT - Completed first tunnel between Italy and Austria in Brenner Base Tunnel

BBT - Completed first tunnel between Italy and Austria in Brenner Base Tunnel

First cross-border underground connection in the Brenner Base Tunnel project. Representatives of the European Commission and institutional leaders from Italy and Austria attended the ceremony. ... More Information

Turin–Lyon: TBM Viviana Begins Its Journey

On September 17, 2025, just 600 meters before reaching the municipality of Saint-Martin-la-Porte, tunnel boring machine (TBM) Viviana completed a complex 90° rotation inside the tunnel to align ... More Information

Sydney Metro West tunnels reach end of the line

Sydney Metro West tunnels reach end of the line

TBM Betty has smashed through into a cavern deep beneath Westmead to complete the first tunnel at the western end of the 24-km Sydney Metro West line, the project that will link Westmead to the ... More Information

TBM Gaia working hard to excavate the main tunnel of the Turin Central Collector

TBM Gaia working hard to excavate the main tunnel of the Turin Central Collector

The TBM Gaia is currently at work on the main tunnel of the Collettore Mediano in Turin, a strategic infrastructure for the city. The machine is excavating a 9.5 km tunnel, crossing heterogeneous ... More Information

Tunnelling News

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

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