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

Major construction expands across entire route of Eglinton Crosstown 9.2-km extension

On 15/04/2025 crews have started digging the tunnels that will connect the Eglinton Crosstown West Extension to the existing terminus of the Eglinton Crosstown LRT (to be known as Line 5 Eglinton ... More Information

Final breakthrough for TBM Renny digging the Eglinton Crosstown West Extension

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

Eglinton Crosstown West Extension tunnel boring machine reaches finish line

Eglinton Crosstown West Extension tunnel boring machine reaches finish line

Press release - One of two twin tunnel boring machines digging the western underground segment of the Eglinton Crosstown West Extension has broken through the final ... More Information

Milestones for Eglinton Crosstown West Extension project

The Eglinton Crosstown West Extension project at Toronto has hit two major milestones - Rexy, one of the TBMs has completed 6 kms of tunnelling so far. The other TBM, Renny, has completed just over ... More Information

Ontario Line Pape Tunnel and Underground Stations contract

FCC, in a collaborative effort, has secured the development contract for the Pape Tunnel and Underground Stations as part of the Ontario Line, a forthcoming rapid transit system in Toronto, Canada. ... More Information

Tunnelling on the Eglinton Crosstown West Extension reaches halfway mark

Last week the Eglinton Crosstown West Extension reached another milestone: Renny, the first TBM to start tunnelling passed the halfway point, digging over 3 km of the roughly 6 km ... More Information

Construction update on the Eglinton Crosstown West Extension

In the last six months Renny, the first TBM to start tunnelling between Renforth Drive and Scarlett Road for the contractor West End Connectors Construction (WECC) has tunnelled 1.9 km, while Rexy, ... More Information

TBM Rexy joins Renny in tunnelling the Eglinton Crosstown West Extension

TBM Rexy joins Renny in tunnelling the Eglinton Crosstown West Extension

Metrolinx reached another milestone for the Eglinton Crosstown West Extension with the second TBM, named Rexy, starting the journey from Renforth Drive to Scarlett Road. The second tunnel for the ... More Information

Tunnelling starts on the Eglinton Crosstown West Extension

Tunnelling starts on the Eglinton Crosstown West Extension

On the 11/04/2022 Metrolinx marked a major milestone as tunnelling began on the Eglinton Crosstown West Extension, the 9.2-km extension of the Eglinton Crosstown LRT from Mount Dennis Station to ... More Information

Winning names for the Eglinton Crosstown West and Scarborough Subway Extension TBMs revealed

After thousands of votes from the community, the winning names are in for the Scarborough Subway Extension’s TBM and the two machines that will build the Eglinton Crosstown West ... More Information

Canada – Latest News on Eglinton Crosstown West Extension and Scarborough Subway Extension

Canada – Latest News on Eglinton Crosstown West Extension and Scarborough Subway Extension

The TBMs, which will dig the tunnels for the Scarborough Subway Extension and the Eglinton Crosstown West Extension in Toronto, arrived at the ports of Oshawa and Hamilton in mid-December 2021. ... More Information

TBM naming contests for Eglinton Crosstown West and Scarborough Subway Extensions TBMs

On 19/10/2021 Metrolinx introduced their naming contest for the 3 giant machines that will dig the tunnels for the Eglinton Crosstown West Extension and Scarborough Subway Extension in the Greater ... More Information

FNPs Identified for Scarborough Subway and Eglinton Crosstown West Advance Tunnel Projects

Infrastructure Ontario and Metrolinx have identified Strabag and West End Connectors as the First Negotiations Proponents (FNPs) to design, build and finance the tunnels for the Scarborough ... More Information

RFPs issued for Scarborough Subway and Eglinton Crosstown West tunnelling projects

Infrastructure Ontario (IO) and Metrolinx have issued two Request for Proposals (RFPs) to teams who have recently been shortlisted to bid on the advance tunnelling work on the Scarborough Subway ... More Information

Teams Shortlisted for Scarborough Subway and Eglinton Crosstown West Tunnelling Projects

Infrastructure Ontario (IO) and Metrolinx have shortlisted six teams for advance tunnelling work on the Scarborough Subway Extension and the Eglinton Crosstown West Extension projects.  ... More Information

First two tenders for the Ontario Line

First two tenders for the Ontario Line

Infrastructure Ontario (IO) and Metrolinx have issued two Requests for Qualifications (RFQs) for the Ontario Line project.  The Ontario Line is a 15.5-km stand-alone rapid transit line that ... More Information

Crosstown Tunnel Progress

The Eglinton Crosstown light rail transit project has seen plenty of progress! Recently, the project reached an important milestone. As part of a testing and commissioning phase, a light rail ... More Information

RFQs Issued for Tunnelling Works on Scarborough Subway Extension and Eglinton Crosstown West Extension

Infrastructure Ontario (IO) and Metrolinx have issued two Requests for Qualifications (RFQs) for advance tunnelling work on the Scarborough Subway Extension and the Eglinton Crosstown West Extension ... More Information

Toronto Eglinton Crosstown Project

Toronto Eglinton Crosstown Project

The Crosstown project, owned by Metrolinx and operated by the Toronto Transit Commission (TTC), is a light rail transit (LRT) line that will run across Eglinton Avenue between Mount Dennis (Weston ... More Information

Eglinton Crosstown LRT East Tunnels Completed

On 17.08.2016 the Eglinton Crosstown LRT, Toronto’s new 19-km light rail transit (LRT) line project that will run along Eglinton Avenue with a central 10 km underground section, reached ... More Information

Eglinton Crosstown TBMs move

Eglinton Crosstown TBMs move

Over the weekend of April 17-20, 2015 the TBMs Dennis and Lea involved in the construction of the Eglinton Crosstown light rail transit line in Toronto, Canada will be lifted out of the extraction ... More Information

Milestone for Eglinton Crosstown

Milestone for Eglinton Crosstown

The two TBMs driving the western segment of the 10 km-long underground tunnel on Toronto’s Eglington Crosstown reached the half-way point of their journey on 21.01.2015, breaking through into ... More Information

Caterpillar kills off Lovat

Caterpillar Inc has announced that it is pulling out of the tunnelling business and closing its plant in Etobicoke, Canada which it bought from Lovat Inc just five years ago. More Information

Tunnelling News

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

Metrolinx reveals names of Ontario Line tunnel boring machines

Following a contest, Metrolinx has officially named its two massive tunnel boring machines Libby and Corkie... More Information

Montreal blue line metro tunnel boring machine has arrived, time to dig

It's basically building the backbone of the blue line extension,” said project chief Maha Clour, pointing out that crews have reached the bottom of ... More Information

Norway Unveils The World's Longest Road Tunnel In A Majestic Engineering Marvel

The construction cost broke down to about 38,000 NOK (roughly £3,500) per meter, an impressive figure considering the complexity and scale of the ... More Information

Sydney Metro West construction captured on video ahead of 2032 opening

Two giant tunnel boring machines have made their way through the deepest section of Darling Harbour as part of works on the new Metro West. More Information

Bengaluru's ₹18,000-crore tunnel road project inches closer as four major firms submit bids

Four firms bid for Bengaluru's ₹18000 crore tunnel project linking Hebbal to Silk Board, expected to ease city traffic by 2029 under a 34-year ... More Information

Webuild advances Rocchetta Tunnel excavation

Upcoming construction milestones. Webuild is preparing for the next major phase on the Apice–Hirpinia section: the launch of the reinforced concrete ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Kathmandu-Tarai Expressway achieves 43.3% progress

The total length of the seven tunnels under the project is 10.979 km. ... Construction progress for the Chandram Bhir tunnel. (2,250 metres) has ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Hong Kong: Robotics And AI Enhance Tunnel Construction

It is leveraging artificial intelligence (AI), robotics and automation to advance the Trunk Road T2 and Cha Kwo Ling Tunnel project. These ... More Information

Single-Bore Tunnel Method Chosen for BART Silicon Valley Phase II

This decision allows VTA to advance project design towards 60%, stay on a critical path to tunnel construction and meet the projected revenue service ... More Information

Boring Co. begins 'controlled blasting' for Nashville tunnel at TN capitol

The Boring Co. has started excavation work at a state-owned parking lot on Rose Parks Boulevard for the Music City Loop project Wednesday, Aug. 13, ... More Information

TBM arrives in Montreal for delayed metro extension project

A custom-built tunnel boring machine (TBM) has arrived in Canada for use on a 6km extension of the Montreal Metro... More Information