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

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

Hagerbach NXT 50 Festival - fireworks of the future

Hagerbach NXT 50 Festival - fireworks of the future

Flums, May 25, 2021 - "It is about time for sustainable, future-oriented innovations." Felix Amberg (President Hagerbach Test Gallery and owner of Amberg Group) on receiving the 2019 STUVA Award. ... More Information

Tunnelling News

NFR achieves breakthrough in Tunnel No 8 of Sivok–Rangpo railway project

Tunnel No. 8 is one of the major tunnels of the project with a total length of 4.148 km and an additional adit measuring 1.010 km. The excavation and ... More Information

Suburban Rail Loop hits tunnelling milestone as eight TBMs arrive on site

The Suburban Rail Loop has reached a major construction milestone, with eight tunnel boring machines now on site ahead of tunnelling later this year... More Information

$16bn Hudson Tunnel project could pause again 'in two to three months'

Components of the first tunnel boring machine (TBM) that will be used for the Palisades Tunnel Project arrived at ... More Information

Hinkley Point C | TBM readied for 620m long fish return tunnel

The tunnel boring machine (TBM) that will excavate the fish return tunnel has been christened Sarah Guppy by local schoolchildren, in tribute to ... More Information

Bhopal Metro's Orange Line Tunnelling Begins

The Bhopal Metro project has recently reached an important milestone as tunnel boring machines (TBMs) have been positioned to begin digging work on ... More Information

A Chinese team rescued a $50M tunnel machine stuck 177 feet underground

Chinese engineers have pulled off a stunning rescue, saving a tunnel boring machine (TBM) stuck 177 feet underground beneath the Yangtze River. More Information

Fort Smith named finalist in Elon Musk's Boring Company tunnel challenge

The company selected Fort Smith's proposal from 487 applicants. The company says the winning project will receive construction of a one-mile tunnel ... More Information

Bengaluru: Four infrastructure firms bid for Hebbal short tunnel

Bengaluru infrastructure: Four firms, including Dilip Buildcon and Max Infra, bid for BDA's Rs 1086 crore Hebbal short tunnel project... More Information

TBM readied for Montreal's Blue Line extension

A custom-made 9.7m-diameter tunnel boring machine (TBM) has been assembled and lowered ready to excavate the tube from the future Vertières stop to ... More Information

$11.5B Brenner Base Tunnel Nears End of TBM Excavation

With TBMs Olga and Wilma closing in, the 55-km rail project shifts from excavation to systems integration ahead of its planned 2028 opening beneath ... More Information

$6.75 Billion Unlocked for Turkey's Bosphorus Rail Project

Multiple Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) will need to be mobilized to carve out the subterranean corridors leading up to ... More Information

Tunneling for Nashville's underground Tesla project has begun

The Boring Company said that the first three weeks of the project will consist of the Prufrock-MB1, a machine that will help carve out the tunnel, ... More Information

Hudson Tunnel Project construction resumes

I look forward to celebrating the launch of our tunnel boring machines through the Palisades once GDC has assurance it will receive the steady flow ... More Information

Lower Thames Crossing

British suppliers could meet 90% of low carbon steel requirements. The proposed machine would be 16.4m in diameter, large enough to create a three‑lane tunnel bore, and is intended to dig ... More Information

Inside the Tunnel Boring Machine, Southampton Link Main project

A six-tonne tunnel boring machine is digging deep below the ground in Hampshire to help keep the county's taps and rivers flowing... More Information

TBM maestro inspects sites ahead of massive tunnel drive

The first machine components have arrived for the tunnel boring machines (TBMs) to be deployed on the Suburban Connect sites in Melbourne. More Information

Metrolinx provides major updates on subway and LRT projects across the GTA

Tunnel boring is advancing on multiple projects, with Scarborough's TBM ... Metrolinx says “Diggy Scardust,” the project's tunnel boring machine, is now ... More Information

Work in Progress: High-tech TBMs ready to carve underground corridor

The Bhopal Metro Rail Project is transitioning into its most challenging and sophisticated phase as two state-of-the-art Tunnel Boring Machines (TBMs) ... More Information

Sarens helps extract TBM at BC water supply project

The Annacis Water Supply Tunnel Project aims to increase the reliability and capacity of the water supply system in New Westminster, British Columbia. When complete, the tunnel will ... More Information

Judge rules in favor of New York and New Jersey for now in $16B tunnel fight with Trump

A federal judge ruled Friday to temporarily block the Trump administration from suspending federal disbursements for the Gateway Tunnel Project... More Information

Webuild: award for Sustainability Report for commitment to decarbonise through innovation

This includes the large tunnel-boring machines deployed on some of Europe's most complex projects: from the Salerno-Reggio Calabria ... More Information

Clearwater update reports initial entry area is 'stable and intact'

The tunnel boring machine being used in the project remains trapped underground just ahead of where the breach occurred. The ambitious, $630 ... More Information

Tunnel Boring Machine Market Size estimated at USD 7.08 Billion

The Tunnel Boring Machine (TBM) market is experiencing significant growth, driven by increasing urbanization, infrastructure development, ... More Information

Completing the First Section of Line 3: Tunnel Boring Machine Roars as it Emerges at Balboa

The Panama tunnel boring machine emerged and completed its first major task: the first section of the Line 3 Metro tunnel. More Information

Twin tunnel-boring titans prepare to dig new road under Sydney Harbour

Twin tunnel-boring titans are preparing to launch under Sydney Harbour to dig out a new road crossing from Birchgrove to Waverton... More Information

Monica Breaks Ground on Snowy 2.0

Monica the tunnel boring machine, with the renewable energy mega-project now more. TBM Monica is among the world's most advanced tunnel boring machines... More Information

Snowy 2.0 sets new tunnel boring machine to work, completes 46 underground concrete pours

Snowy 2.0 has set to work a fourth tunnel boring machine, a $75 million piece of drilling equipment purpose built to complete excavation of the huge pumped hydro project’s “geologically ... More Information

World's 'largest' underground assembly of tunnelling machines happening beneath Sydney

Workers are craning into place about 167 major pieces that will form the first of two giant boring machines. Once assembled like giant Meccano sets, ... More Information

Tunneling Begins on Major Water Pipeline for South Hillsborough

TAMPA, Fla. — Tampa Bay Water has begun construction on a major underground pipeline project aimed at meeting rising water demand in southern Hillsborough County, where population growth ... More Information

The massive £3billion tunnel designed to connect two continents under the sea

The construction of a huge underwater multi-tiered tunnel is underway in Turkey, that will create a direct route from Asia to Europe - and is expected to carry 1.3 million passengers a ... More Information

Riederwald Tunnel in Frankfurt is further delayed

Traffic was supposed to start flowing through the controversial Riederwald Tunnel in Frankfurt in 2033. But that's unlikely to happen. The €1.5 billion project is facing further delays – ... More Information

What happens to our metro tunnel boring machines when they hit the end of the line?

These mechanical behemoths were Betty and Dorothy, the tunnel boring machines tasked with digging the Sydney Metro West tunnels. Loading. The ... More Information

The incredible £2.8bn underwater tunnel connecting Europe and Asia

A huge new tunnel will connect Europe and Asia - and construction has already started. The Great Istanbul Tunnel is a major project. It will carry ... More Information

China develops "smart brain" for tunnel boring machines to boost underground construction

A team from Hunan University in central China has collaboratively developed an intelligent operating system for tunnel boring machines, giving these massive underground giants a "smart ... More Information

How China rescued highway project under Yangtze River

The incident occurred in February 2023 during construction of the 6.4-kilometer Jiangyin–Jingjiang Yangtze River Tunnel. Midway through excavation, at ... More Information

HS2 final tunnel drive to Euston starts next week

A team from SCS will drive a 4.5-mile twin-bore tunnel linking Old Oak Common to Euston using two tunnel boring machines, Karen and Madeleine. More Information

Work begins on £48M Knutsford sewer upgrade featuring 1.8km stormwater tunnel

Sean Reid, United Utilities county business lead for wastewater in Cheshire said: “This project highlights our ongoing commitment to improving water ... More Information

$14.6M boost moves Gering–Fort Laramie Canal Tunnel project forward

After nearly six years of planning, construction is moving forward on the Gering–Fort Laramie Canal tunnels... More Information

Webuild: second breakthrough at Trebisacce Tunnel along Jonica State Road 106

Project will help transform Jonica State Road 106 into a strategic corridor linking Ionian coasts of Calabria, Basilicata and Puglia... More Information