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Excavation begins for HS2’s first ‘barn design’ tunnel vent shaft

Excavation begins for HS2’s first ‘barn design’ tunnel vent shaft

Following the launch of HS2's first two giant TBMs, engineers working on Britain’s new high-speed railway have now begun excavating the first of five shafts that will provide ventilation ... More Information

TBM Sofia completes Metro Line 11 Extension in Paris

TBM Sofia completes Metro Line 11 Extension in Paris

On 16/7/2021 the TBM Sofia (length 106 m, weight 1450 t) arrived in the future Serge Gainsbourg station (Les Lilas). The machine has now completed the tunnel for the 6 km metro Line 11 extension, ... More Information

Lower Thames Crossing - Eight-week public consultation

The community impacts consultation – running from  July to 23:59 on Wednesday 8 September 2021 - gives Highways England communities the opportunity to have their say on ... More Information

Pair of Crossover TBMs completes Triple Tunnel Drives in Mumbai

Pair of Crossover TBMs completes Triple Tunnel Drives in Mumbai

In the Spring of 2021, the second of two 6.65 m (21.8 ft) diameter Robbins Crossover XRE TBMs made its third and final breakthrough for India’s Mumbai Metro Line 3. The first machine made its ... More Information

Italy - Breakthrough in the Marana tunnel on SS260

Italy - Breakthrough in the Marana tunnel on SS260

On the 16/07/21 there was a breakthrough in the 1148 m Marana tunnel (1,148 m), which is part of the construction works for the Amatrice - Montereale - L'Aquila section on the SS 260 Picente in ... More Information

Simplon railway tunnel: SBB is looking for volunteers for a rescue exercise

On Sunday 12 September 2021, SBB will carry out a rescue exercise to verify the intervention and evacuation procedures in an emergency event. This will take place in the over 100-year-old Simplon ... More Information

EXPO Ferroviaria opens at Fiera Milano Rho from 28th to 30th September 2021

The EXPO Ferroviaria 10th Edition will be the first Italian rail industry exhibition since the COVID pandemic started. The show covers all aspects of rail-related technology and services (including ... More Information

The First Tunnel of the Fuzhou Binhai Express Line Is Completed

The First Tunnel of the Fuzhou Binhai Express Line Is Completed

Recently, the jointly built by China Railway 17th Bureau and CRCHI, the earth pressure/TBM double-mode boring machine successfully completed the left line of Dailing Tunnel. This tunnel is part of ... More Information

TBM EPB Jinxiu ready to go into operation for the Chengdu - Zigong high speed railway

TBM EPB Jinxiu ready to go into operation for the Chengdu - Zigong high speed railway

On the 10/07/2021 China’s largest homemade EPB TBM rolled off the production line at Changsha N.2 Industrial Park where CRCHI (China Railway Construction Heavy Industry Corporation Ltd) is ... More Information

BART Silicon Valley Phase II Extension Program announcement

The following protocols and instructions apply to the Pre-SOQ meeting that Santa Clara Valley Transportation Authority (VTA) intends to convene with private sector Participants who have downloaded ... More Information

Sydney Metro West enters the next planning stage

On the Sydney Metro West project, the planning process has started for the construction of 9 new metro stations between Westmead and Hunter Street in the Sydney CBD – as well as the precincts ... More Information

€3 BILLION worth of Contracts awarded for TELT

Paris, 7 July 2021–The TELT board of directors, which met today online between Rome and Paris, has given  the  go-ahead  for  the  signing  of  contracts ... More Information

Press Release - Super sewer gets Royal visitor as project nears end of tunnelling phase

London’s new super sewer tunnel was visited today by Her Royal Highness The Princess Royal as she delved deep below the River Thames to witness the progress made during the ... More Information

Press Release - CEAR presents video of CTS Ex p Compact Distribution and Transformer substation

Press Release - CEAR presents video of CTS Ex p Compact Distribution and Transformer substation

CEAR (Costruzioni Elettrotecniche) introduces their CTS Ex p Compact Distribution and Transformer substation, as per ATEX Standard 2014/34/EU, with a YouTube video please click here to view. The ... More Information

Call for papers for 2nd PIARC Int’l Conference on Road Tunnel Operations and Safety!

PIARC and the Spanish National Committee (ATC) will jointly organize the 2nd International Conference on Tunnels and the VIII Spanish Symposium in the new Granada Conference & Exhibition Centre ... More Information

2021 ITA Awards entries: Deadline extended

An extended deadline has been set for the global tunnelling industry to submit entries for the 2021 ITA Tunnelling Awards that seek to rewards the  most  ground-breaking innovations and ... More Information

Final breakthrough for the 3RPORT project in Fort Wayne city

Final breakthrough for the 3RPORT project in Fort Wayne city

On 30/06/2021- after 3 years - TBM MamaJo completed the 7.473,39 m (5 miles) length and 16-foot (4.88 m) diameter tunnel stretching from Glasgow Avenue to Foster Park and connecting 14 ... More Information

Press release - Momentum builds as HS2 launches second giant tunnelling machine

Press release - Momentum builds as HS2 launches second giant tunnelling machine

HS2 this week launched ‘Cecilia’ - the second of two enormous 2,000 tonne tunnelling machines that will excavate the ten mile long tunnels beneath the Chiltern hills just outside London. ... More Information

TERRATEC 2nd Open TBM delivered for Mumbai’s Water Tunnel Project

TERRATEC 2nd Open TBM delivered for Mumbai’s Water Tunnel Project

TERRATEC delivers the new 3.2m dia. Open TBM that will be used by Contractor Soma Enterprise Limited to complete two drives for Amar Mahal I water transfer tunnel contract in Mumbai, India. ... More Information

Strata Tunnelling Head Mike Rispin Becomes Chair of the Underground Construction Association of SME

Strata Tunnelling Head Mike Rispin Becomes Chair of the Underground Construction Association of SME

Mike Rispin, who joined Strata Worldwide as Vice President of Tunnelling in December 2020, becomes chairman of the Underground Construction Association of The Society for Mining, Metallurgy & ... More Information

Turkey - New high-speed railway line Halkali-Ispartakule-Cerkezkoy

Turkey - New high-speed railway line Halkali-Ispartakule-Cerkezkoy

Turkish Republic Ministry of Transport and Infrastructure, General Directorate of Infrastructure Investments (AYGM) intends to construct a new high-speed railway line from Halkali to ... More Information

Completion of Melbourne's Metro Tunnel Project in 2025

Completion of Melbourne's Metro Tunnel Project in 2025

After the completion of TBM tunnelling, Arden Station is taking shape with the platforms being constructed and the Laurens Street station entrance ground floor slab poured. The twin tunnels are now ... More Information

Breaking ground on the Scarborough Subway Extension

Breaking ground on the Scarborough Subway Extension

On 23/06/2021 Metrolinx officially broke ground on the Scarborough Subway Extension, though work is already well underway. At the northeast corner of Sheppard and McCowan, crews are building the ... More Information

Press release - Getting on with the North East Link

A preferred bidder has been selected for the tunnelling package for the North East Link, which will fix the missing link in Melbourne’s freeway network, slash travel times and free up local ... More Information

City Rail Link construction - June Progress

City Rail Link construction - June Progress

The 130 m long TBM Dame Whina Cooper  has reached 60 m on its journey towards the Karangahape station under construction,  830 m away from its Mt Eden starting point. The red ... More Information

Warwick Boring – Learn all about their bid to win Elon Musk’s “Not-A-Boring Tunnelling Competition 2021”

Warwick Boring – Learn all about their bid to win Elon Musk’s “Not-A-Boring Tunnelling Competition 2021”

We are a diverse and ambitious group of 30+ engineers from the University of Warwick, UK who qualified into the Finals of Elon Musk’s Competition as the top 3% worldwide (12 out of 400 ... More Information

Tunnel breakthrough on Terzo Valico dei Giovi

Tunnel breakthrough on Terzo Valico dei Giovi

On 17/06/2021 another milestone was reached on the Terzo Valico dei Giovi project. This project was commissioned by Rete Ferroviaria Italiana (RFI) (Gruppo FS Italiane) and had its first ... More Information

Swinoujscie Tunnel - Update

So far as part of the Swinoujscie tunnel construction project the TBM Wyspiarka has tunnelled 563 m, and has installed 170, 1.5-meter rings and 154 two-meter rings. Each ring consists of 8 ... More Information

Register for the Lunchtime Lecture Series - #6 "Into the future"

Event by ITACET Foundation for Continuous Education and Training on Tunnelling and Underground Space Use -  Online on Tue, Jul 13, 2021, from 12:00 PM - 1:30 PM (your local ... More Information

Press release - Secondary lining complete on Frogmore Connection Tunnel

Press release - Secondary lining complete on Frogmore Connection Tunnel

Secondary lining on a 1.1km connection tunnel linking Wandsworth to the main super sewer in West London is now complete, marking a major milestone for the Tideway project. The Frogmore ... More Information

TELT - First of 3 Webinars during the European Year of Rail

2021 marks a key year for the strengthening of the transport sector, a year in which the commitment to the future of new generations can have a tangible effect.    Environment, ... More Information

Lyublinsko-Dmitrovskaya metro line - 50% of tunnelling completed on Lianozovo - Fiztech section

The construction of the running tunnels between the future Lianozovo and Fiztech stations of the Lyublinsko-Dmitrovskaya metro line is more than 50% complete.  The TBMs Tatiana and Irina, ... More Information

Suburban Rail Loop Current Works

The Suburban Rail Loop Authority is undertaking geotechnical investigations as part of the early planning and design work that will help determine the rail alignment and station locations. These ... More Information

HS2 launches national vote to name Warwickshire TBM

On the 09/06/2021 HS2 launched a national vote to name their third TBM – weight 2,000 t and diameter 10 m - that will dig a one-mile twin bore tunnel under Long Itchington Wood in ... More Information

Canada - Annacis Water Supply Tunnel

Canada - Annacis Water Supply Tunnel

Project Overview - To meet the growing demand for drinking water in the region, Metro Vancouver is planning to construct a major water infrastructure project called the Annacis Water Supply ... More Information

India - Pune Nashik Semi-High Speed Railway Line

India - Pune Nashik Semi-High Speed Railway Line

The central government has approved the Nashik-Pune High-Speed Railway project involving an investment of Rs 16,039 crore. The line will be funded by the government of Maharashtra (20%) and Ministry ... More Information

Tunnelling News

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

Spain Confirms Feasibility of €8.5 Billion Morocco-Europe Tunnel

The study was conducted by German company Herrenknecht, the world leader in tunnel boring machines, at the request of the Spanish government's ... More Information

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

The first tunnel boring machine will be deployed near ... Industry experts say tunnel boring machines typically advance about 50 feet per day. More Information

6 TBMs on Duty on the 27-Kilometer Line in Körfezray

Two of the six Tunnel Boring Machines (TBMs) that will serve in the first 27-kilometer phase are actively excavating tunnels, while the ... More Information

Construction on HS2's Euston tunnel will start 'fairly soon', says rail minister

Construction on the HS2 tunnel from Old Oak Common station to Euston station will start “fairly soon”, the rail minister has said... More Information

Blue Line Extension TBM Arrives at Port of Montreal

Railway Track and Structures Construction site of the future Vertières station (Pie-IX) in June 2025. Caption and photo courtesy of STM. MONTREAL - The tunnel boring machine (TBM) ... More Information

Tunnel break through milestone for Mt Messenger Bypass project

A 110 tonne excavating machine, called Hinetūparimaunga, has broken through at the northern end of the project's 235 metre-long tunnel ... More Information

$3.9 billion tunnel and bridge link for VA

Costing around $3.9 billion, the Hampton Roads Bridge-Tunnel (HRBT) upgrade Expansion project for Virginia will improve traffic flow for a key ... More Information

Extended North Tunnel Flood Mitigation Project Receives $18.2 Million in State Funding

The funding advanced by the board includes a $17.2 million loan and $1 million grant for the construction of the mile-long tunnel, which will divert ... More Information

Gateway Project faces new uncertainty amid government shutdown

Federal funding for the $16B Hudson Tunnel Project, aka Gateway, has been paused during the government shutdown, sparking political backlash. More Information

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

Tunnel boring machine (TBM), Emily. This test confirms that Emily is ready to begin excavating the southern leg of the Potomac River Tunnel — a ... More Information

Sydney Metro West achieves world-first in tunnelling technology

Sydney Metro West has achieved a world-first in tunnel construction with a Lining Erector Machine (LEM) successfully being used to line the mined ... More Information

Gateway construction continues despite Trump's claim of termination

Tutor Perini, the general contractor on the Manhattan Tunnel Project, confirmed construction activity is currently continuing as planned... More Information

Tunnelling complete for Annacis water supply project

Metro Vancouver has completed the tunnelling phase of the $450 million Annacis Water Supply Tunnel, which will complete in 2028... More Information

Santa Clara VTA confirms single tunnel plan for BART extension

With VTA now owning the tunnel boring machine, the agency assumes full responsibility for its performance, agency officials said. To manage the risk, ... More Information