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Fehmarnbelt Link updates

The construction of the 18 km Fehmarnbelt tunnel - between Rødbyhavn on Lolland and Puttgarden on the island of Fehmarn - formally began at the beginning of 2021 east of Rødbyhavn. The ... More Information

HSR Asia 2024

HSR Asia 2024 is a comprehensive 2-day programme that aims to explore the transformative benefits of high-speed rail, focusing on its impact on the environment, economies and societies. The ... More Information

Implenia wins contract for large, complex inner-city railway project in Gothenburg, Sweden

Press release - Contract to build a section of the “West Link” scheme, including railway tunnel and station, that will improve mobility in Gothenburg and western Sweden | ... More Information

Australia - Preferred bidder announced for second tunnelling contract of Suburban Rail Loop (SRL) East

Consortium Terra Verde - composed of Webuild (leader), GS Engineering & Construction of South Korea’s GS Group and Bouygues Construction Australia of France’s Bouygues - is the ... More Information

Billion dollar Gateway Tunnel Project Secures Federal Funding

Press release - After years of political wrangling and logistical setbacks, the $16 billion Gateway Tunnel Project, a critical infrastructure initiative aimed at improving the rail connection ... More Information

Preferred bidder announced for second tunnelling contract

Press release - Consortium Terra Verde is the preferred bidder for the second SRL East tunnelling contract to build the 10km of twin tunnels between Glen Waverley and Box Hill. The global ... More Information

TBMs nearly ready to dig Victoria's longest road tunnels

The 2 TBMs that will dig the North East Link road tunnels are a step closer to starting digging. The TBM cutterheads have been lowered into place in Watsonia. Next, the TBMs will be tested and ... More Information

First TBM Breakthrough for the Greater Cairo Metro Line 4 Project

On the 1st of July, Hassan Allam Construction celebrated the first successful TBM breakthrough for the Greater Cairo Metro Line 4 Project-Phase 1 from Station 6 to Station 7. Click here for the ... More Information

Brazil - Breakthrough at the Analia Franco station of the São Paulo Line 2 extension

On 27 June, the TBM Cora Coralina, broke through at the Analia Franco station, the second TBM for the extension from Vila Prudente to Penha of the São Paulo Metro Line 2-Green. The TBM - ... More Information

Western Sydney Airport metro tunnels complete

Press release - Greater Western Sydney is now home to landmark new 9.8-kilometre twin metro railway tunnels, with major tunnelling officially complete on the city-shaping Sydney Metro – ... More Information

TERRATEC EPBM to build Klong Saen Saeb Drainage Tunnel in Thailand

A new TERRATEC TBM will take part in the Klong Saen Saeb Drainage Tunnel Project in Thailand. TERRATEC celebrated the successful Factory Acceptance Tests of a new 4.27m diameter Earth Pressure ... More Information

USA/California - Caltrans Selects Tunnel Alternative for Last Chance Grade Project

Last Chance Grade (LCG) is a 4.83 km (3-mile) segment of US 101 just north of Wilson Creek, between Klamath and Crescent City. Landslides and road failures have been an ongoing problem for decades ... More Information

LEEA Builds #GLAD2024 Content to Finale

Press release - The Lifting Equipment Engineers Association (LEEA) has revealed more plans for Global Lifting Awareness Day (GLAD) on 18 July. A multidimensional campaign has been running since the ... More Information

VTA Celebrates its West Portal Groundbreaking Milestone for BART Silicon Valley Phase II Extension Project

On Friday, June 14th Santa Clara Valley Transportation Authority (VTA) held a historic ground breaking ceremony to mark the start of construction of its West Portal facility. This is the site where ... More Information

June updates for BBT

Press Release - H53 Pfons-Brenner construction site: the first segments reach the construction site The two TBMs Wilma and Olga - which from September 2024 will dig and line the twin tube 7.5km ... More Information

CM Lafer Srl equipment for new Himalayan railways in India

Italian company CM Lafer Srl in collaboration with Indian company Eurostar Engineering Pvt-Ltd has completed the supply of 30 formworks for in-situ final lining of tunnels excavated with NATM system ... More Information

Italy/Trentino-South Tyrol – Work has started on the southern entrance to the Trento railway bypass

Work continues on the construction of 13 km (Lot 3A) of the new railway line - almost entirely underground – linking to the future Brenner Base Tunnel. The new infrastructure will begin from ... More Information

MTBM Victoria completes its digging for Central Interceptor Project at Auckland

Victoria, the smallest of the three TBMs working on Watercare’s Central Interceptor project, has completed her micro-tunnelling work beneath Auckland and joined Domenica at the finish ... More Information

Switzerland – Inauguration of the new Albula railway tunnel

On Saturday 8th June 2024 - at the Preda portal at 1,800 meters above sea level - the Rhaetian Railway (RhB) officially inaugurated the new Albula railway tunnel (5860 m). The ... More Information

Brenner Base Tunnel update

Every year BBT organises an Open Day for the Brenner Base Tunnel project. They take place at the Austrian construction site H41 Sill-Pfons Gorge, and at the construction site of the Eisack ... More Information

Green light for funding for Point Erin Central Interceptor tunnel project extension

Funding has been confirmed to extend the Central Interceptor wastewater tunnel by more than 1 km from Grey Lynn to Point Erin, Herne Bay. This will reduce wet weather overflows and ... More Information

Federal Government Greenlights $6.8B Funding for Gateway Tunnel Project

The long-awaited Gateway Tunnel project is officially moving forward. The $16 billion initiative has secured a $6.8 billion full-funding grant from the federal government, marking a significant ... More Information

Three tunnels done and dusted for Sydney Metro – Western Sydney Airport, one to go!

Press release - Mega tunnel boring machines (TBMs) Catherine, Eileen and Peggy have completed their historic journeys to build metro rail tunnels for the Sydney Metro – Western Sydney Airport ... More Information

Grand Paris Express - TBM Awa ready to start for West section of Line 18

On Wednesday 29 May 2024, the Société des grands projets christened Awa, the latest TBM for Line 18. In June, Awa will start digging - from the future Guyancourt station - a 6.7 ... More Information

HS2 Updates

Chiltern tunnel TBMs dismantled - The Dismantling of the two Herrenknecht TBMs - 170m long and weighed 2,000 t - that built HS2 (High Speed Two) Ltd’s Chiltern Tunnel have now been ... More Information

TBM Futura to drive the Rocchetta tunnel on the Naples-Bari HS/HC railway line

Futura will is the name of the second TBM used for the construction of the new Naples-Bari line. The TBM, whose name was chosen by the pupils of the E. Faceltti elementary school in Apice (BN), ... More Information

WTC2025 - Abstract submission deadline extended!

After a successful first call for abstracts WTC2025 is pleased to announce the deadline for submissions has been extended until Thursday June 13th. Take this opportunity to share innovative ideas, ... More Information

Slovenia - Breakthrough of longest railway tunnel in the country!

On 29 may 2024 Kolektor Construction and Euro-Asfalt completed excavation of the sixth and longest tunnel of the 2TDK project providing a second track between Divaca and the port of Koper. This ... More Information

TBM Jessie ready to be launched for Sydney Metro West towards Sydney’s CBD

TBM Jessie, the first TBM for the Sydney Metro West - Eastern Tunnelling Package, is about to be launched. It will carve out a 2.3-km tunnel from The Bays to Hunter Street in the ... More Information

Two CRCHI TBMs Launched from opposite directions of the World's Longest Subsea Tunnel

On May 16th, two super-large diameter slurry TBMs, developed by China Railway Construction Heavy Industry Corporation Limited (CRCHI), were launched from opposite directions in Ningbo and Zhoushan ... More Information

BBT - TBM Ida reaches first 3 km of excavation for Lot H41 Sill-Pfons Gorge

On 14 May 2024 the TBM Ida, launched back in June 2023, reached its first 3 km of excavation towards the south, in the West line tunnel, advancing an average of 13 m/day and extracting ... More Information

Final breakthrough for TBM Renny digging the Eglinton Crosstown West Extension

Renny, the last West End Connectors’s TBM on the Eglinton Crosstown West Extension (ECWE) project, has officially completed its 6.3-km journey from Renforth Drive to the extraction shaft, ... More Information

Transition Completes the Silvertown Tunnel

Riverlinx CJV - the construction joint venture of Ferrovial Construction, BAM Nuttall and SK ecoplant working on behalf of Transport for London - completed construction works for the connections ... More Information

BTS 2024 Conference & Exhibition - Registration is open

The BTS 2024 Conference and Exhibition is the largest gathering of tunnelling professionals in the UK. Taking place on October 8th – 9th, 2024 at the QEII Conference Centre, Westminster, ... More Information

Hyperbaric excavation for the Casalnuovo tunnel on the HS/HC Napoli-Bari line

Webuild, which was awarded the contract by Rete Ferroviaria Italiana (RFI) for the Naples-Cancello lot of the Naples-Bari high-speed/high-capacity railway line, is using hyperbaric excavation ... More Information

Registration now open for ‘Open Days’ at the Modane construction site

Press release - For the first time, the Villarodin-Bourget/Modane underground construction site, where part of the Mont Cenis base tunnel, at the centre of the new Turin-Lyon railway line, is ... More Information

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Tunnelling News

Construction begins on 6 Cross Island Line Phase 2 stations

Tunnel Boring Machine measuring 12.8m in diameter. The machine will “bore through the ground only once for the construction of the tunnel which ... More Information

Tunnel boring machine returns after installing $22 million outfall

A 19.5 tonne tunnel-boring machine docked at Onehunga Wharf on Friday afternoon after successfully tunnelling the $22m Clarks Beach Outfall over ... More Information

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

U.S. Tunneling Professionals Convene in Dallas at RETC 2025

The event drew approximately 1,400 people. Another highlight of the conference was the presentation of the now annual Underground Construction ... More Information

Construction of NY and NJ GatewayTunnel hits halfway mark

People are looking down at the ground from the Highline on Manhattan's West Side. Some parts of the new train tunnel structure ... More Information

Silicon Valley BART extension seeks new tunneling contractor

Silicon Valley BART extension seeks new tunneling contractor for construction. Maguire told reporters during a briefing Monday morning. He noted that VTA is trying to fill a $1.2 billion ... More Information

Tunneling In The Digital Age: Rethinking Subsurface Infrastructure

But successful construction is just the start of the journey. Underground infrastructure is a long-term investment—just look at the London Underground ... More Information

Sydney Moves Forward with Final Tunnelling for Harbour Project

Sydney prepares for the arrival of the largest TBMs in the Southern Hemisphere as the Western Harbour Tunnel project enters its final tunnelling ... More Information

Metrolinx seeks help to name 2 of its massive Ontario Line tunnel digging machines

Metrolinx is now accepting names for two of its giant tunnel boring machines (TBMs), which will be used for twin 16-metre-deep and six-kilometre-long ... More Information

Deutsche Bahn awards contract for Munich S-Bahn project

The contract involves structural works for the expansion, including the construction of tunnels and an underground station. The Tunnel Ostbahnhof JV, ... More Information

Excavation completed on Italian side of Brenner Base Tunnel

The tunnel boring machine (TBM) named “Flavia” successfully bored through the Alps beneath the Mules 2–3 section, reaching the Austrian border. More Information

Giant tunnel borer set for Shantou Bay project

A giant tunnel boring machine has been installed for tunnelling under Shantou Bay in Shantou, South China's Guangdong province. [Photo provided to ... More Information

€0.4bn road and tunnel project in Georgia

Work is proceeding on the Kvesheti-Kobi road and tunnel scheme in Georgia. The scheme is part of a larger project, being carried out with Chinese ... More Information

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

CERN releases report on the feasibility of a possible Future Circular Collider

The estimated cost of construction of the FCC electron–positron stage, including the tunnel and all the infrastructure, is 15 billion Swiss francs... More Information

TBM break through on Auckland's £915M wastewater megaproject completes 16.2km tunnel

Auckland's major wastewater infrastructure project, the Central Interceptor, has reached a significant milestone with the final breakthrough of ... More Information

In pics: construction site of Chongming-Taicang tunnel

A smart assembling vehicle works at "Linghang" large diameter shield tunneling machine at the construction site of the Chongming-Taicang tunnel, part of the Shanghai-Chongqing-Chengdu ... More Information

IN PICTURES: Spectacular images of the removal of HS2's huge tunnelling machine

TBM Sushila was used to construct part of the Northolt Tunnel – an 8.4-mile tunnel ... construction/london-tunnels/progress-3/northolt-tunnel/tbm- ... More Information

Historic tunnels uncovered beneath Salisbury station during £5.3M upgrade project

Engineers from Network Rail and South Western Railway have uncovered a network of tunnels and rooms beneath Salisbury station during ongoing £5.3M upgrades to the station’s forecourt... More Information

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels. The new road will pass through Georgia along a trade route ... More Information

Buca Metro Tunnel Excavations Reached 50 Percent Level

Important progress is being made in the construction of the line, where four tunnel boring machines (TBMs), each 100 meters long, 7 meters wide and ... More Information

'Very promising' narrow-reef boring technology nearing rollout stage

A novel tunnel boring machine (TBM) will open up Bokoni's narrow tabular dipping PGM orebody to allow narrow-reef boring to take place, so that ... More Information

A vast undersea tunnel is being built

The 7.4 billion-euro ($7.7 billion) project is a huge undertaking, in every sense. Each section of the tunnel is colossal. These concrete structures ... More Information

National Grid gets planning permission for Grain to Tilbury upgrade with new Thames tunnel

National Grid has secured full planning approval for the Grain to Tilbury project, which includes a new power tunnel under the River Thames... More Information

Right track tunnel of Huangjialing Tunnel in NW China's Gansu drilled through

A staff member works on the construction site of the right track tunnel of the Huangjialing Tunnel in Linxia Hui Autonomous Prefecture, northwest ... More Information

Shetland Islands tunnels plan takes 'huge step forward' with sonar investigations

This phase will further inform the project's development and feasibility. The tunnel project, seen by locals as pivotal for improving ... More Information

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