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

Robbins Webinar - Tackling “Mixed Face” Conditions

Robbins Webinar - Tackling “Mixed Face” Conditions

In this complimentary 60-minute webinar, Robbins Vice President Doug Harding and Engineer Greg Michaelson will redefine the term “mixed face” within the context of both geology and ... More Information

Westgate Tunnel project update

Westgate Tunnel project update

Press release -  As the TBM 'Bella' prepares for her six-week journey to Melbourne, the team at TBM HQ in China gave our first Tunnel Boring Machine a dress rehearsal of epic proportions. ... More Information

26th Annual Microtunneling Short Course 2019

26th Annual Microtunneling Short Course 2019

Press release - The annual Microtunneling Short Course is heading to the University of Colorado Boulder February 4-7, 2019, making its way toward another quarter century of success.  The ... More Information

Herrenknecht press release - New drains for Singapore

Herrenknecht press release - New drains for Singapore

In Singapore, a Herrenknecht tunnel boring machine (EPB Shield, Ø 5,250 mm) excavated two large drains for the Stamford Diversion Canal. The challenge: winding bottlenecks and an inner-city ... More Information

That’s a Wrap for Robbins Rock Machine ‘Driller Mike’

That’s a Wrap for Robbins Rock Machine ‘Driller Mike’

Tough TBM and Team overcome the odds with Atlanta breakthrough On October 4, 2018, onlookers watched as a 3.8 m (12.5 ft) diameter Robbins Main Beam TBM completed its epic journey. The TBM, ... More Information

EF Consult and DTS win major contracts

EF Consult and DTS win major contracts

EF Consult Asia Pte Ltd / Design & Technic Pte Ltd, will provide a full range of Compressed Air Works Services for Singapore’s DTSS Phase 2 and Circle Line 6 Tunnels. They have also ... More Information



Gaia, the first EPM TBM certified ''Origine France Garantie'' is ready to start digging the emergency tunnel of the Meudon railway tunnel (3350 m) on Line 977000, Invalides-Versailles Rive Gauche in ... More Information

Geologist services required for Gotthard Tunnel

Open invitation to tender, deadline 23.11.2018, for geologist services, senior project geologist for the (DP) phase, chief client geologist for the construction phase up to and including ... More Information

Consultation on Lower Thames Crossing

The Lower Thames Crossing, a major new road linking Kent, Thurrock and Essex, would nearly double road capacity across the River Thames. The multi-billion-pound project will connect communities, ... More Information

WTC 2019 - Naples

WTC 2019 - Naples

730 papers have been received by the Scientific Committee of the World Tunnel Congress 2019, the second phase of the process has now been completed. The next step will lead to a selection of ... More Information

Celebrations for CIFA’s 90th anniversary

Celebrations for CIFA’s 90th anniversary

A new creation in the form of a logo emerging from concrete has been created to represent CIFAs 90th anniversary. This is to show its established stability and longevity within the industry since it ... More Information

Super sewer team don pink for Breast Cancer Care

Super sewer team don pink for Breast Cancer Care

The team building London’s super sewer swapped their headgear for a pink number to raise money for Breast Cancer Care today (Friday, Oct 12). More than 150 Members of the Tideway construction ... More Information

Finalists for the Innovative Use of Underground Space category

ITA Tunnelling Awards 2018  3 INNOVATIVE INTERNATIONAL PROJECTS TO RECONCILE THE UNDERGROUND AND THE SURFACE   Since 2015, the international competition "the ITA Tunnelling Awards" ... More Information

TERRATEC and JIM Technology formalize relationship

TERRATEC and JIM Technology formalize relationship

TERRATEC is proud to announce the incorporation of its business partner, JIM Technology from Japan, as shareholder of the Company. Both companies have been working together for the last 8 years ... More Information

Donegal Tunnel Tigers Memorial

The @DonegalTunnelTigers are preparing to erect a memorial in honour of all Donegal miners that have died as a result of accidents while working in tunnels or those that have passed due to tunnel ... More Information

Blacklick tunnel ahead of Schedule

Blacklick tunnel ahead of Schedule

Press release from Michels - Final drive completed 3 months ahead of schedule. Congratulations to our crews, partners and customer for the successful completion of the final drive on the 4.5-mile ... More Information

Welcome to our new advertiser MineARC Systems.

Welcome to our new advertiser MineARC Systems.

MineARC is the global leader in controlled environments and safety technologies for the underground mining, tunnelling, chemical processing, disaster relief and biotechnology industries. MineARC ... More Information

Delivering Australia’s largest road infrastructure project – WestConnex

Delivering a multi-billion-dollar, multi-record-breaking infrastructure project under immense public scrutiny is no easy feat – but it’s part of the challenge for James Holbrook, ... More Information

Breakthrough under the San Martino Hospital of Genoa

Breakthrough under the San Martino Hospital of Genoa

On 8 October 2018 the joint venture between Cipa Spa (LEAD), Injectosond Srl and Paolo Barchi Srl finished the tunnel underneath the San Martino hospital in Genoa. The tunnel was created to ... More Information

Albula tunnel breakthrough

On the 2nd of October 2018 the 5860 m Albula Tunnel broke through, it is part of the Rhaetian Railway. The tunnel has been built between the Albula valley and the upper Engadine in the Canton of ... More Information

Chilean La Piramide tunnel starts construction

Chilean La Piramide tunnel starts construction

This October the drill & blast excavation of the 2km La Piramide tunnel in the Recolet municipality started . The tunnel is one of the sections of the Americo Vespucio Oriente I (AVO I) which ... More Information

First breakthrough for Mumbai’s Metro-3

On the 24.09.2018 the TBM Wainganga completed its first tunnel for the 33.5-km Colaba-Bandra-Seepz (Metro-3 line). The 1.26-km tunnel between Pali ground in Marol, Andheri (East) and the ... More Information

Palmieri Group launch new website

Palmieri Group launch new website

Palmieri Group launched its new website http://www.palmierigroup.com/ at the 22nd edition of Geofluid. Visit it the site today to see the changes that make the site easier to use and is full of ... More Information

The Mumbai Coastal Road Project (MCRP)

The 35.6 km long Mumbai/Bombay Coastal Road will connect the southern part of Mumbai from Marine Lines with Kandivali in the north. It will have 8 lanes, two of which are reserved for the Bus ... More Information

Huge Robbins Slurry TBM makes the Cut

Huge Robbins Slurry TBM makes the Cut

On September 18, 2018, a Robbins mega-sized slurry machine, measuring 13.7 m (44.8 ft) in diameter, made its first cut into hard rock. The epic launch at an urban jobsite was made possible by Onsite ... More Information

Quito Metro tunnel completed

On Tuesday, October 2nd ,  the Metropolitan Public Company Metro de Quito informed the public that the TBM Luz de America reached the El Arbolito extraction shaft, completing the Quito Metro ... More Information

NIB finances new section of E18 motorway in Norway

NIB and the Norwegian toll-road operator Ferde AS have signed a EUR 104.5 million (NOK 1 billion) loan with a maturity of 17.5 years to finance the construction of a new 23km section of four-lane ... More Information

ISAVFT 2019 - Call for Papers is now open!

The 18th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels Call for Papers is now open! ISAVFT 2019 will be taking place in Athens, Greece from the 25th -27th of September ... More Information

OSSA - verdict announced

The verdict involving Ossa and Statens Vegvesen (Norway) has been announced. The Spanish firm Ossa, a specialist in the construction of underground works, has won an appeal against SVV (Statens ... More Information

West Section of Tel Aviv Red Line Completed.

West Section of Tel Aviv Red Line Completed.

On September 20, 2018, the last CREG TBM (ø 7.54m) successfully broke through into the Carlibach Station in Tel Aviv, Israel.  The project used 6 sets of CREG EPBs and the contractor ... More Information

WTC 2019

The deadline to submit papers for WTC 2019 has been postponed until September 23rd  2018. Papers should be submitted in Microsoft Word (.doc) and PDF (.pdf not zipped) and according to the ... More Information


The bi-annually German underground infrastructure trade fair will take at the Kassel Exhibition Center from May 8th  to 10th, 2019. Around 300 exhibitors are expected from around 20 ... More Information

Palermo railway link tunnel complete

Palermo railway link tunnel  complete

RFI and the Italian-Spanish consortium SIS celebrated the breakthrough of the Notarbartolo-Belgio tunnel for the Palermo railway. The Marisol TBM (diameter 9,40 m) completed the tunnel excavation ... More Information

Karavanke railway tunnel

The Karavanke tunnel between Slovenia and Austria has been undergoing maintenance and renovation work. The complete renovation of the tunnel is scheduled to be finished between 2020 and 2021. The ... More Information

Mumbai - Two new metro projects approved

On the 11th of September 2018 the Maharashtra government approved the implementation of two metro projects for Mumbai: the Dahisar-Mira Bhayander section for the metro Line 9, and the 3.17 km ... More Information

WTC 2019 - Deadline paper submission postponed

The deadline to submit papers for WTC 2019 has been postponed to September 16th 2018. Papers should be submitted in Microsoft Word (.doc) and PDF (.pdf not zipped) and according to the official ... More Information

Tunnelling News

CRCHI video

New CRCHI video for world leading underground equipment - Technology innovates the world... More Information

Deer Creek update

Exciting update from the Deer Creek project team! The Wasatch Worm is almost in the ground and will be ready to start tunneling this week. Over the next few months, it will be devouring a ... More Information

Stonehenge tunnel: Underground cabling installed, while other enabling works paused

The scheme, which involves the construction of a new 12.8km two-lane dual carriageway with a 3.2km tunnel under the Unesco World Heritage Site, was ... More Information

Nepal's first transport tunnel being built with Japanese assistance

Nepal and Japan signed the contract for construction of the tunnel on September 23, 2019, while the commencement started on November 14, 2019. More ... More Information

Cowi selected as technical advisor on world's first ever ship tunnel proposed in Norway

Construction is currently estimated to begin next year. The objective of the Stad Ship Tunnel project is to improve the navigability and safety of ... More Information

How Arnold Dix became a Himalayan hero after rescuing 41 workers from Indian tunnel collapse

Arnold Dix slid his hand into a gap in the rock at the entrance to a tunnel where 41 men were trapped alive, put his back against the cold stone and listened, and felt, and listened some ... More Information

Central Interceptor Tunnel Boring Machine

Watercare Services Limited’s Central Interceptor Tunnel Boring Machine, Hiwa-i-te-Rangi, has achieved a significant milestone, reaching 10,000m (10 kilometres) since leaving Māngere in ... More Information

New tunnelling machine joins three others digging high-speed line under London

Construction of the new HS2 line has hit another major milestone with the launch of the fourth – and final – machine being used to build the giant Northolt Tunnel beneath the capital... More Information

Lower Thames Crossing planning decision moves a step closer

On 21 March, the Planning Inspectorate confirmed that the Examining Authority has sent their recommendation report on the Lower Thames Crossing Development Consent Order (DCO) application ... More Information

AECOM-Jacobs JV signs on to $6B Amtrak tunnel job

Amtrak is gearing up to dig deep in Baltimore. The railroad company selected ADVANCE, a joint venture between Dallas-based infrastructure firms AECOM and Jacobs, to serve as the delivery ... More Information

Lower Thames tunnel boosts new orders data

UK construction contract awards reached their highest level in February 2024 for seven months, according to one of the industry's data monitoring ... More Information

The incredible new £53m tunnel in Spain linking two pretty cities

The work is part of efforts to modernise the railway line between Ourense and Lugo in the autonomous Galicia region. Spanish construction giant ... More Information

ECRL hits new milestone with the completion of three tunnel excavations in Bentong district

The ECRL project features the construction of 41 tunnels with a total length of approximately 69 km along its rail alignment. Section A (Kota Bharu- ... More Information

Boring Co. receives go-ahead to drill more Vegas Loop tunnels

LVCVA President and CEO Steve Hill offered the company access to safety officers after the company was fined $100000 for construction violations ... More Information

Biden-Harris Administration Announces Nearly $4 Billion in Support

The project includes construction of a new two-track heavy rail tunnel along the Northeast Corridor from the Bergen Palisades in New Jersey to ... More Information

World's Longest Twin-Lane Tunnel Inaugurated In Arunachal Pradesh

Constructed by the Border Roads Organisation (BRO) for INR 825 crore, the tunnel is strategically vital due to its proximity to the Line of Actual ... More Information

The £13.3bn tunnel 8.5 miles long that could transform one of the world's biggest cities

The Second Avenue Subway's per-mile construction cost is higher than that of other projects in similar cities like London's Crossrail and Paris's ... More Information

First look inside Silvertown tunnel as TfL confirms summer 2025 opening

... tunnel construction in the face of environmental concerns. Construction is costing about £1bn – with a further £1.2bn due in annual repayments ... More Information

Consortium of Aecom and Arcadis appointed to tunnel and station design contract for Ontario metro

The scope of work for the PTUS contract includes construction of 3km of twin tunnels underneath Pape Avenue between the Gerrard tunnel portal and ... More Information

Snowy Hydro is inching towards powering the nation

... tunnelling progress of one of its critical boring machines ... Some 80 metres underground in temperatures well in excess of 30C, tunnel boring machine ... More Information

Judge rejects challenge to £1.7bn Stonehenge Tunnel

The High Court has thrown out a case brought by campaigners against the £1.7bn Stonehenge Tunnel project. Mr Justice Holgate said most of the ... More Information

9 of the longest underwater tunnels in the world

These stations are the first railway stations constructed under the sea and serve as emergency escape points in case of a disaster. Today, the Seikan ... More Information

EPC contractors sought for Dubai's £17bn sewer tunnels project

The strategic sewerage tunnels project by Dubai Municipality known as the Deep Tunnels Portfolio will involve the construction of wastewater assets ... More Information

The $7BN Mega-Tunnels You've Never Heard Of

But thanks to some incredible underground construction methods, Antwerp is now on course to complete a massive piece of infrastructure it's been ... More Information

3 listed & 2 Unlisted get LOA to build Mumbai Coastal Road Ext

The underground tunnel will run below Malad and Kandivali through the Mangrove creeks and a tunnel boring machine (TBM) will be used for this phase. More Information

New tunnel planned to under the Thames at Tilbury and Gravesend

ianVisits ... tunnel (c) National Grid. Construction will be done by a conventional tunnel boring machine (TBM), which will launch from a 41-metre deep shaft dug ... More Information

Third tunnel breakthrough on Guildford sewage works

A micro-TBM recently broke through on a new tunnel being built for Thames Water's project to relocate sewage treatment works in Guildford. More Information

Japan maglev train project being derailed by Shizuoka stalemate

Opposition in Shizuoka Prefecture emerged from fears the planned tunnel construction for the line could adversely affect the overall volume of water ... More Information

World's most expensive tunnel that ended up costing a whopping £2.3m a day to build

Over 5000 construction workers were employed to complete the Central Artery/Tunnel Project in the United States. More Information

Underground or Elevated Metro Rail – Which One is Better for India?

The cost of tunnel boring machines (TBM) is another significant component. The tunneling cost can be reduced by making longer tunnel contract ... More Information

From Undersea Tunnel To Station Redevelopment

The NHSRCL will construct an adjoining tunnel location as part of the package. To construct this tunnel, the Tunnel Boring Machines (TBMs) with a ... More Information

Second tunnel boring machine for Broadway Subway reaches South Granville Station

The tunnel boring machines will end their journey just before Arbutus Station, which spans two city blocks, with the west block used as the footprint ... More Information

BESIX-MTH awards Nordhavn work to Bravida

... construction of the Nordhavn Tunnel. By & Havn is tasked with developing Ørestad and the port of Copenhagen and runs the daily operations of the ... More Information

After India's first undersea tunnel, Mumbai to get its longest intra-city underground road

... construction with viaducts and modern safety measures. The Coastal Road tunnel is India's first undersea tunnel, constructed using a 12-metre ... More Information

3,200 tonne TBM delivered to France-Italy rail tunnel project

A tunnel boring machine (TBM) manufactured by German tunnelling and mining firm Herrenknecht has been delivered to the Lyon-Turin Mont Cenis base ... More Information

FPT Industrial engines power the construction of the longest immersed tunnel in the world

The construction of the Fehmarnbelt tunnel is an important addition to Europe's sustainable transport network of the future. It will offer the ... More Information

Work resumes at Silkyara tunnel after 2 months

On the instructions of the Union Ministry of Road Transport and Highways, construction work of protective nature has begun from both Barkot and ... More Information

Webuild Joint Venture awarded Pape Tunnel and Underground Stations Progressive DB contract

Webuild will lead a joint venture to develop the project for the "Pape Tunnel and Underground Stations (PTUS)" section of the Ontario Line, the new rapid transit line that will run through ... More Information

Third Tunnel Boring Machine Lowered at Panagal Park

In a significant milestone for the Chennai Metro Phase 2 project, the third Tunnel Boring Machine (TBM) has been successfully lowered at the ... More Information