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

Geofluid 2021

Geofluid 2021

Piacenza Expo has decided to postpone the GEOFLUID exposition until 2021. The new date for your diaries will be the 15th  to the 18th of  September 2021 at the exhibition centre ... More Information

A1 Santa Lucia tunnel breakthrough

On the 08/06/2020 the TBM EPB S-900 Herrenknecht (diameter 15.87 m) completed the excavation of the 7551 m Santa Lucia tunnel on Barberino di Mugello - Calenzano section, A1 Motorway in Italy. ... More Information

Prior Information Notice for the Sucre III Water Conveyance System

ELAPAS (Empresa Local de Agua Potable y Alcantarillado Sanitario) from the city of Sucre, Bolivia, has published the Prior Information Notice for the Sucre III Water Conveyance System (Lot ... More Information

WTC 2021 - deadline for abstracts extended

ITA-AITES and the Danish Society for Tunnels and Underground Works (DFTU) call for abstracts for the World Tunnel Congress 2021 in Copenhagen 16-19 May 2021 has been extended to the 16 June 2020. ... More Information

The Big 5 in Dubai postponed

The Big 5, the annual trade event connecting the global construction community in Dubai, is moving dates from 23-26 November 2020 and will be held next on 12-15 September 2021, at the Dubai World ... More Information

A Virtual visit to the Robbins booth at NAT

Don't forget to stop by the Robbins booth at the North American Tunnelling (NAT) virtual trade show, where you can view a curated selection of Robbins latest news, white papers, videos and ... More Information

NAT week is almost here!

Are you ready for the North American Tunnelling (NAT) Virtual Conference? Register and get a week full of informative talks on intriguing topics from June 8-12. Visit  ... More Information

The ITA tunnelling awards 2020

The call for entries has been extended until the 23rd  June 2020 for the 6th edition of the international tunnelling and underground space awards. The ITA Awards  will take place at the ... 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

TBMs for Bangalore Metro Line-4

On 28/05/20 Larsen & Toubro began lowering parts of TBM DZ669 (named Avni) and DZ671 (named Vindhya) into the Shivajinagar and Cantonment stations, respectively, for driving tunnels on the ... More Information

Balfour Beatty joint venture awarded HK$7.2 billion (c. £760 million) major tunnel project at Hong Kong International Airport

Balfour Beatty today announces that its 50:50 joint venture, Gammon Construction, has been awarded a HK$7.2 billion (c. £760 million) contract to deliver tunnels and associated works for an ... More Information

Greenlight for E6 Ranheim-Vaernes highway

Greenlight for E6 Ranheim-Vaernes highway

Acciona and Nye Veier, the Norwegian state highway authority, have reached an agreement to proceed to the next stage of the design and construction of the E6 Ranheim-Værnes highway. Work is ... More Information

Deutsche Bahn milestone in Stuttgart.

Deutsche Bahn milestone in Stuttgart.

On the 06/05/2020 Deutsche Bahn reached another important milestone as part of the Stuttgart 21 project, by breaking through the east tube of the 9.5-km-long Filder tunnel: the last of four tunnels ... More Information

TERRATEC EPBMs achieving good progress on Istanbul Metro

TERRATEC EPBMs achieving good progress on Istanbul Metro

A number of TERRATEC Earth Pressure Balance TBMs are achieving great progress rates on new lines for Istanbul’s ongoing metro expansion despite the Covid-19 outbreak. TERRATEC is pleased to ... More Information

Penetron Crystalline Technology for new tunnel

Penetron Crystalline Technology  for new tunnel

The Penetron Italy team were approached to provide a waterproofing solution for an underground pedestrian tunnel, elevator shafts, and different concrete structures for the new San Martino ... More Information

EUROCK 2020 Postponed

The 2020 ISRM International Symposium will be held on 12-14 October 2020. The event will take place at the same venue in Trondheim, Norway. All associated ISRM meetings will also be moved to new ... More Information

Alice and Millie Tunnelling East

Alice and Millie Tunnelling East

Metro tunnel in Australia have reached another major milestone, with tunnel boring machines (TBM) Millie and Alice now both on their way to South Yarra. The green TBM Alice, named after wartime ... More Information

Metro Line 2 in Warsaw - update

Metro Line 2 in Warsaw - update

There are four TBMs Krystyna and Elisabetta, Maria and Anna that are being used to tunnel the central Targowek and Wola sections of the Warsaw metro line 2. TBMs Krystyna and Elisabetta will now ... More Information

First stone laid for SS 106 Ionian Highway

On the 19/05/20 in Francavilla Marittima in Cosenza province, the first stone was laid for the Mega Lot 3 of the SS 106 Ionian Highway. The EUR980 million project, was commissioned by state road ... More Information

STRATA LAUNCHES NEWLY DESIGNED EMERGENCY REFUGE CHAMBER (ERC)

 Strata Worldwide is excited to announce the global launch of its next generation emergency refuge chamber; the Strata ERCX. The Strata ERCX is a steel-sided, walk-in refuge chamber for use ... More Information

Brighter, lighter conditions for George Massey Tunnel

Work is underway to improve brightness and visibility in the George Massey Tunnel. Claire Trevena, Canadian Minister of Transportation and Infrastructure, said the government continues to move ahead ... More Information

Press release - Swiss Tunnel Congress (STC) 2020 – Webinar

This year’s Swiss Tunnel Congress will be taking place in the form of a webinar due to the current worldwide pandemic (COVID-19). A video of the recorded congress will be published on the ... More Information

Normet Launch New Range of High Performance TBM Tail Sealants

Normet Launch New Range of High Performance TBM Tail Sealants

The next generation of high performance, eco-friendly tail sealants for shielded tunnel boring machines have been introduced into the Normet TBM product range.   The new range of ... More Information

Name chosen for NZ City Rail Links TBM

The winning name for City Rail Link’s TBM is Dame Whina Cooper. City Rail Link’s TBM will share the name of Dame Whina Cooper, a woman who spent most of an illustrious life leading the ... More Information

Tunnelling re-starts on super sewer as Tideway sets out comprehensive safety plan

London’s biggest infrastructure project has re-started tunnelling work on the super sewer urgently needed to clean up the River Thames. Tideway, the company building the 25km super sewer ... More Information

Second RijnlandRoute tunnel update

TBM Gaia has started drilling the second 2.25km  RijnlandRoute tunnel in the Netherlands. After Gaia was blessed on 07/05/2020, tunnelling began, the route will pass under the Vliet, the ... 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

Montreal Mont-Royal Tunnel modernization on REM

Montreal Mont-Royal Tunnel modernization on REM

From the 11/05/20 the REM (Reseau Express Metropolitain) construction sites in Montreal will gradually resume their operations, after a stop time that started on the 24/03/20. This is following the ... More Information

Geofluid Postponed until 2021.

Geofluid Postponed until 2021.

The new GEOFLUID show will take place from the 19th  to 22nd  May 2021 at the Piacenza exhibition centre in Italy . The current pandemic has considerably influenced the decision to cancel, ... More Information

Railways 2021 - Extended deadline for short papers

The Fifth International Conference on Railway Technology has been postponed from 7-10 September 2020 to 30 August - 2 September 2021 at the same venue in Mallorca, Spain. Due to the rescheduling, ... More Information

Tideway Press Release - Meet the Engineer: Bianca Wheeler

At Tideway, our aim is to inspire the engineers of tomorrow by promoting the STEM subjects of science, technology, engineering and maths. We also want to showcase some of the many talented people ... More Information

Poland - Zakopianka Tunnel

On Monday, April 27, 2020 the excavation of the second tube of the 2.06km Zakopianka tunnel under the Lubon Maly Mountain in the Beskid Wyspowy was completed. The teams boring the tunnel from both ... More Information

Paradigm Group Achieves World First Cross-Industry Dry-Deluge Testing on Australian Motorway Tunnelling Project.

Paradigm Group Achieves World First Cross-Industry Dry-Deluge Testing on Australian Motorway Tunnelling Project.

Paradigm Flow Services Ltd (PFS) has successfully applied their game changing digital dry deluge testing system, Dry-Flo® on a non-oilfield project on a major transport tunnel construction ... More Information

Russia/Tatarstan - Kazan metro

Russia/Tatarstan  - Kazan metro

On the 23.04.2020 the TBM named Aysylu was launched to start the construction of the first 5.37 section of  the second metro line in Kazan from Fuchik – Sakharov, the contractor is ... More Information

CIPA is Hiring

CIPA is Hiring

CIPA is hiring and looking for workers for its Italian and foreign sites: •             Mechanics and drivers (with license ... More Information

HRBT Expansion Project Update

HRBT Expansion Project Update

In March 2020 Hampton Roads Connector Partners (HRCP), the joint venture consisting of Dragados USA, Flatiron Constructors, Vinci Construction and Dodin Campenon Bernard,  commissioned ... More Information

Tunnelling News

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

Ground preparation for Lower Thames Crossing tunnelling

Work is ongoing to overcome sub-optimal ground conditions in preparation for the start of tunnelling on the Lower Thames Crossing in late 2028, according to the project’s tunnels director... More Information

LA Metro approves massive $25B underground rail line to bypass 405 Freeway

The LA Metro Board unanimously approved an underground heavy rail line to connect the San Fernando Valley and the Westside, bypassing the congested 405 Freeway. The nearly 13-mile route, ... More Information

TUNNEL VISION Mega £7.4bn undersea tunnel connecting two CONTINENTS just got one step closer

A MAJOR £7.4 billion underwater tunnel connecting two continents has taken a step closer to construction. Experts have said the 24-mile tunnel is “technically viable”, paving the way for ... More Information

TBM breakthrough in Sydney

Tunnel boring machine (TBM) Jane Starkey successfully completed her 1.2km underground journey through challenging Sydney sandstone... More Information

Hochul announces $25 million for Harlem crosstown subway tunnel design

At E. 120th St., a pair of tunnel-boring machines — currently under construction in Germany — will bore new, 8,400-foot tunnels north from the end ... More Information

Tunnelling under the Yarra River

Our two Tunnel Boring Machines (TBMs) will soon be travelling underneath the Yarra River... Approximately 300 metres of the 6.5 kilometre North East Link will be under the Yarra ... More Information

The Boring Company says its tunneling machine is 'ready to mine in Nashville'

The Music City Loop project is aimed at transporting people from Nashville International Airport to Lower Broadway in roughly 10 minutes. By Li ... More Information

Norway Is Building the World's Longest and Deepest Tunnel Beneath the Sea

The Rogfast project, short for Rogaland Fixed Link, is an underwater road tunnel being built beneath Norway's fjords as part of the E39 coastal ... More Information

Future engineers become 'TBM Captains' for Suburban Rail Loop

Tunnel Boring Machines (TBMs) that will begin work this year. The tour of the eastern tunnel entrance was part of a long-term initiative, with ... More Information

Image gallery: Civil works completed on HS2's longest tunnel

Main construction on the Buckinghamshire structure began in May 2021 with the launch of two 2,000-tonne tunnel boring machines (TBMs), named Florence ... More Information

The Boring Company Launches Free Tunnel Contest: AI Applications for Smart Infrastructure

According to Sawyer Merritt on Twitter, The Boring Company has announced a contest to build a one-mile tunnel for free, inviting proposals for ... More Information

Out of sight: spectacular HS2 tunnels offer glimmer of hope for stalling project

Despite much soul-searching over UK’s inability to build infrastructure, two sections of HS2 under Chilterns are being hailed for their engineering... More Information

HS2 January 2026 update

We’re making progress building the main infrastructure for the new line. We’ve completed 80% of tunnelling and are working on major bridges, viaducts and embankments, and HS2’s new ... More Information

Implenia Secures EUR 350 Mln Projects For Bridges, Tunnel Works In Germany

Tunnel to join motorway sections and connecting roads. The Swiss construction and real estate company said the Peene Bridge project in Wolgast, ... More Information

Incredible new $7.9bn mega rail and road tunnel to be the world's longest

The safety of our workers is of utmost importance during the construction of the Fehmarn Belt Tunnel. We will await the findings of the ... More Information

TBM launch from Rukanpura soon as metro work gains pace

The tunnel boring machine (TBM) for the underground network is likely to be launched from Rukanpura on Bailey Road, which falls under Corridor I ... More Information

World's largest-diameter boring machine used for Yangtze River railway tunnel

China's domestically developed, world's largest-diameter vertical shaft boring machine 'Qiming' was officially put into operation in Taicang City ... More Information