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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

ITA Tunnelling Awards - Celebrating Underground Engineering Excellence

ITA Tunnelling Awards -  Celebrating Underground Engineering Excellence

A calendar highlight each year is the annual ITA Tunnelling Awards. This year 25 finalists from 13 countries representing impressive projects, transforming machines and materials, and ... More Information

Falanghina TBM Starts Operations for the Region's Water Safety

Falanghina TBM Starts Operations for the Region's Water Safety

On September 10th, the launch event for the works to secure the Campania Region's water supply system took place at the Campolattaro Dam construction site, in the province of Benevento, with the ... More Information

Hydrodemolition – Tapered Conduit Cuts - Inside a Tunnel System - Author: Chris Turney

Hydrodemolition – Tapered Conduit Cuts - Inside a Tunnel System - Author: Chris Turney

Walco Industries Ltd. was asked to complete a hydrodemolition project at a hydropower dam. The dam is located in western Canada and is one of the largest earthen dams in the world. It’s a ... More Information

Italy/Liguria –TBM launch for the Bisagno Flood Relief tunnel on October 1st

On October 1st, 2025, the TBM (1,280 tons) will be launched — it arrived by ship from China at the Messina terminal last February. The use of the TBM will accelerate the excavation of the 5.5 ... More Information

The new Oural tunnel on the Ourense-Monforte-Lugo corridor to be inaugurated soon

On September 23, ADIF will inaugurate the new Oural tunnel, a milestone in the comprehensive renovation and modernization of the Ourense-Monforte de Lemos-Lugo corridor (117 km), which connects to ... More Information

Fehmarnbelt tunnel - Both portals near completion

Fehmarnbelt tunnel - Both portals near completion

The Danish entrance to the Fehmarnbelt tunnel with its 160-m long cut-and-cover tunnel at Rødbyhavn on Lolland is almost complete.  The transition between the motorway and the railway on ... More Information

Switzerland - Open Day on September 13, 2025 at the Ligerz/Gleresse Tunnel

Switzerland - Open Day on September 13, 2025 at the Ligerz/Gleresse Tunnel

On September 13, from 9:00 a.m. to 4:00 p.m., an open day will be held at the Ligerz/Gleresse tunnel, part of the track-doubling project between La Neuveville (BE) and Twann/Douanne (BE) in ... More Information

TBM excavation completed at Forch window in Italy

In mid-September 2025, TBM Barbara (85 m long and weighing 2,000 t) completed the excavation and lining—using 726 rings—of the Forch construction window (1.3 km), part of Lot 1 - ... More Information

Progress on the Ogliastrillo-Castelbuono section of the Palermo-Catania-Messina railway doubling project.

The TBM Margherita is advancing at an average speed of 11 m/day, at a depth of approximately 105 m, while excavating the odd tube of the Cefalù tunnel on the Ogliastrillo-Castelbuono section, ... More Information

Canada - Libby and Corkie will carve out the first two Ontario Line subway tunnels

Two new TBMs in the Metrolinx family have officially been named Libby and Corkie, following a naming contest launched in June 2025 — which saw more than 900 submissions and over 1,000 votes ... More Information

Arup Takes the Helm in Landmark UK Water Infrastructure Revamp

Securing Water Resilience for Over Two Million People - Global engineering and built environment consultancy Arup has been appointed by STRABAG UK to deliver comprehensive design services for the ... More Information

Italy/France - Mont Blanc Tunnel, vault renovation: the second test site

The second test site for the renovation of the Mont Blanc Tunnel vault will be carried out from 1 September to 12 December 2025 in two sections of the tunnel, upstream and downstream of one of the ... More Information

First breakthrough with TBM in a main tunnel in Austria for BBT

First breakthrough with TBM in a main tunnel in Austria for BBT

TBM Ida has completed the excavation of the 8.4 km H41 Sill Gorge-Pfons section of the Brenner Base Tunnel, reaching its destination in the municipality of Navis (Wipptal), near an existing ... More Information

Tunnelling News

$676 million underwater tunnel for India

The project is expected to cost around $676 million, with a Detailed Project Report (DPR) having now been completed. India's road transport network is ... More Information

€1.4 billion Belgian tunnel project approved

The first phase of the €1.4 billion project for Belgium’s new Limburg Noord-Zuid link has been approved. Construction should commence in 2027 on the project, which will form a section of ... More Information

Tunnel boring machine S-639B achieves breakthrough under Kanpur Metro Phase I Project

The package KNPCC-06 involves design and construction of a tunnel through TBM, cut and cover tunnel, underground ramp from Kanpur Central end of ... More Information

Lawmakers propose construction of undersea tunnel to link Luzon and Visayas

Several lawmakers from the Visayas region are proposing the construction of an underground tunnel that will serve as a permanent land connection ... More Information

Oman-UAE rail project hits major milestone with start of tunnel excavation

Tunnel excavation has begun in Oman's Al Hajar Mountains, marking a major milestone for the cross-border Oman-UAE Railway... More Information

Engineering the depths: innovative tunnelling for hydropower projects

Major schemes in Austria, China, and Germany are applying advanced underground construction techniques for hydropower projects. More Information

New tunnel, new standard: Silvertown project showcases innovation in surface protection

Originally approved in 2018, construction of the tunnel began in March 2021. In September 2023, following the completion of tunnelling works, ... More Information

Metro Manila Subway Project: DOTr launches third tunnel boring machine

Dubai: The Department of Transportation (DOTr) has launched a third tunnel boring machine (TBM) for the Metro Manila Subway Project (MMSP), ... More Information

Skanska JV wraps up $450M Baltimore tunnel nearly 2 years early

A joint venture has reached substantial completion on the $450 million Howard Street Tunnel Project in Baltimore nearly two years ahead of the original completion date, according to a ... More Information

Work continues on NYC megaprojects, despite $18B federal funding pause

Contractors on two of New York City’s largest infrastructure projects will keep digging, but they might glance over their shoulders toward Washington... More Information

HS2 Chipping Warden tunnel project moves step forward

HS2 Ltd An aerial view of the HS2 tunnel construction at Chipping Warden. A road HS2 Ltd. The 1.55 mile (2.5km) Chipping Warden tunnel will be ... More Information

First of three Tunnel boring machines on way to SA as beams go up for tram overpass

The first of three tunnel boring machines that will be used to complete the northern and southern tunnels project is on its way to SA as part of a ... More Information

Chennai Metro Rail's TBMs to begin tunneling between Thiruvanmiyur and Indira Nagar

Chennai Metro Rail begins tunnelling work in challenging stretch for phase II project, facing obstacles due to hard rock... More Information

Custom lifting gantry aids TBM removal - Construction Briefing

The four TBMs excavated the 8.4 mile (14 km) Northolt Tunnel section. Two went in each way, digging a pair of tunnels from both ends towards each ... More Information

Tunnel construction begins on Barskoon — Bedel road in Issyk-Kul region

According to the project, two tunnels, 5,340 and 3,840 meters long, respectively, will be built at Sook and Ashuu-Suu passes. They will be among the ... More Information

China debuts world's mightiest centrifuge, unleashing ultra-intense gravity

China leads the way in shield tunnelling machine development · Shield machine of south line of Yellow River tunnel starts boring in Jinan · A close ... More Information

Boring Company Launches Global Operations Control Center in Bastrop, Texas

The Boring Company has officially opened its new Global Operations Control Centre in Bastrop, Texas, the tunnelling start-up announced on X... More Information

Port of Longview Lands $35.9MM Federal Loan for Rail Expansion

Active Construction on New Hudson Tunnel Project Supporting Domestic Jobs and Economic Output ... Bridges/Tunnels, Class 1, Freight, Ports, Track ... More Information

TBM Parvati Achieves Breakthrough At Kakadeo Station Of Kanpur Metro Line 2

Brief Scope: Design and Construction of TBM Tunnel, Cut and Cover Tunnel, ramp after Double Pullia, ramps in Agriculture Depot for main line and ... More Information

Howard Street tunnel reopens ahead of schedule, boosting Baltimore's freight capacity

The Howard Street Tunnel has been reopened after being out of service since February 2025.The nearly 130-year-old tunnel extends north from Camden Yards to the Mount Royal Station and is ... More Information

Progress update on the Tunnel Boring Machine for National Grid

Following its launch in May this year, Buddug, the Eryri VIP tunnel boring machine (TBM) is making good progress digging the tunnel which will ... More Information

Mumbai-Ahmedabad Bullet Train Project Clears Major Hurdle

After months of delay, the tunnel-boring machine stuck in China is being shipped to India, clearing the path for underground construction of the ... More Information

Bright lights: This Las Vegas tunnel is getting a major upgrade

Construction is underway on Desert Inn Road between Paradise Road and Joe W Brown Drive as part of a $9.2 million improvement project on Friday, ... More Information

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone on Metro Line 3. Auto-dubbed. 398 views · 6 hours ago ...more ... More Information

Major breakthrough achieved in Mumbai-Ahmedabad bullet train tunnel construction

Mumbai: A breakthrough was achieved for a 4.88 km-long tunnel between Shilphata and Ghansoli for the... More Information

New Austrian tunnelling method achieves milestone breakthrough in BKC-Shillphata undersea tunnel project

In a significant milestone for the ambitious undersea tunnel project between BKC and Shillphata, g Method (NATM) has ... More Information

World's Longest Railway Connection Makes Construction Breakthrough

The Brenner Base Tunnel, built deep beneath the Alps, is set to reshape freight and passenger transport across Europe... More Information

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information

Athens Metro Line 4 works to finish by 2029

The construction of Athens Metro Line 4 is progressing steadily, with the entire project ... Tunnel mistakenly excavated in Athens metro project. More Information

First trains on track to run through Metro Tunnel within three months

Melbourne's $15.5 billion Metro Tunnel could be switched on in as little as three months as construction wraps up at two CBD stations and trains ... More Information

Petersburg crews to begin tunnel project in response to ongoing flooding, damage - WRIC

As ongoing water issues have caused significant damage to infrastructure around Petersburg, the Old Towne neighborhood ... More Information

Intelligent optimization framework for tunnel construction

Tunnel construction forms the foundation of railway development and is essential for ensuring route continuity and operational efficiency. However, ... More Information

São Paulo positions TBM for next phase of Line 2-Green

A major milestone was reached on Monday (1 September) with the lowering of the cutter head of the tunnel boring machine (TBM) Cora Coralina... More Information

The 700-ton machine that'll dig NYC's Second Avenue subway extension

NYC has a new tunnel boring machine in its toolbox for the expansion of the line under 2nd ave. If you've never seen some BIG earth moving machines, ... More Information

Light at the end of the tunnel showing for Mount Washington transit project

The project is expected to be completed in October. New tracks finally emerge from the Mount Washington Transit Tunnel as a part of Pittsburgh ... More Information