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

Coffs Harbour Bypass

Coffs Harbour Bypass

The Australian and NSW governments are funding the 14 km Coffs Harbour bypass project.  The bypass will boost the regional economy and improve connectivity, road transport efficiency and safety ... More Information

TBM Meg arrives

Digging of the western section of the Metro Tunnel between Kensington and the Central Business District is now complete, after TBM Meg broke through at the State Library Station, marking the  ... More Information

Geothermal Energy from the Base Tunnel to power the Susa Valley construction site

The hot water collected during excavation of the Chiomonte base tunnel will become a source of clean, sustainable energy for its construction site. This geothermal resource will then be made ... More Information

CrossRiverRail Webinar

An online webinar to hear first-hand from Cross River Rail’s experts about tunnelling works and how it may impact local residents and businesses.   Experts from the Cross River Rail ... More Information

Voting opens for TBM name for Swinoujscie tunnel

Voting has begun to name the new  Swina River TBM, which will soon begin to drive the Swinoujscie tunnel tunnel under the Swina River. The competition committee chose 5 of the 301 ... More Information

HS2 accelerates north as MPs give go-ahead to next phase to Crewe

HS2 accelerates north as MPs give go-ahead to next phase to Crewe

Parliament continues to show very strong support for HS2, as the Bill for the extension from the West Midlands to Crewe – Phase 2A – is given Royal ... More Information

Colaba-Bandra-SEEPZ Metro-3 Corridor 36th Breakthrough at CSMIA T1 Metro Station

Colaba-Bandra-SEEPZ Metro-3 Corridor 36th Breakthrough at CSMIA T1 Metro Station

Mumbai Metro Rail Corporation (MMRC) has achieved its 36th breakthrough at CSMIA T1 Metro Station.  With this 1.5-km long tunnel from Sahar Road Metro Station to CSMIA, T1 is now completed. The ... More Information

World Tunnelling Congress 2023

World Tunnelling Congress 2023

The winner to host the WTC2023 is Greece!  The final voting result: Greece 33 vs Turkey 14. The theme will be  EXPANDING UNDERGROUND - Knowledge & Passion to Make a Positive Impact on ... More Information

First cutter head arrives for TBM for Metro Manila Subway project

First cutter head arrives for TBM for Metro Manila Subway project

On 05/02/21 at the Manila North Centre Port Terminal an arrival ceremony  was held for the Cutter Head for of the first TBM Kaunlaran. It will be used for the 15-station Metro Manila Subway 's ... More Information

Construction work started on the Fehmarnbelt connection

Construction work started on the Fehmarnbelt connection

With final German approval of the Fehmarnbelt project obtained in November 2020, construction of the Fehmarnbelt Tunnel between Denmark and Germany is now well underway.   During 2021, ... More Information

City Rail Link’s TBM will be launched in April 2021

City Rail Link’s TBM will be launched in April 2021

Most of the preparation works for the City Rail Link (CRL) has been completed and project momentum is shifting to the heavy infrastructure programme. 2021 will see the Dame Whina Cooper ... More Information

Robbins enters a New Chapter

Robbins Brand to continue under Global TBM Company - Global TBM Company, newly established by industry veteran Lok Home, is proud to announce the recent purchase of substantially all the assets of ... More Information

Grand Paris Express updates - Line 16

Grand Paris Express updates - Line 16

Line 16 (27.5 km) of the Grand Paris Express project will be entirely underground and three works lots are planned with the use of 8 TBMs. The works’ are scheduled to finish in 2030. Lot 2 - ... More Information

EGLE Permits: Michigan agency approves permits needed for Enbridge tunnel project

On 29/01/2021 the Enbridge Line 5 tunnel in the Straits of Mackinac got another step closer to being built. The Michigan Department of Environment, Great Lakes, and Energy announced its approval of ... More Information

Cross River Rail Updates

Cross River Rail Updates

Roadheaders start tunnelling towards Boggo Road - Two 115t roadheaders  have started to mine the remainder of the 870 m Cross River Rail twin tunnels between Woolloongabba and Boggo ... More Information

FAMA and Sustainability

FAMA and Sustainability

Excellent results were achieved in 2020 by FAMA, a world leading provider of sealing, connection systems and precast tunnel lining. The company’s budget shows a positive finish after an ... More Information

Breakthrough on WestConnex tunnels

Breakthrough on WestConnex tunnels

A major milestone was reached on the M4-M5 Link Tunnels project  - 41 m underground at the St Peters Interchange - with roadheaders carving through to the M8, linking two WestConnex stages ... More Information

NASTT 2021 No-Dig Show

The NASTT 2021 No-Dig Show will convene in Orlando, Florida, March 28-31 at the Orange County Convention Center — offering in-person and virtual offerings to bring the trenchless industry to ... More Information

EnigmaCG’s 6th Annual Webinar on Innovation in Tunnels: Construction, Maintenance, Safety & Fire Protection

With over 55 live tenders for construction/development of new tunnels in just Spain, Switzerland, Italy and Belgium at the time of writing this, it is safe to say that tunnel construction/ ... More Information

TERRATEC TBM begins work for Delhi Metro Phase 4

  TERRATEC TBM begins work for Delhi Metro Phase 4

A refurbished 6.52m diameter TERRATEC Earth Pressure Balance (EPB) Tunnel Boring Machine has been delivered to a Joint Venture between Hindustan Construction Company Ltd. of India and Vensar ... More Information

VIRTUAL HRBT Expansion Project Construction Open House

VIRTUAL HRBT Expansion Project Construction Open House

With the start of the New Year, the HRBT Expansion Project begins new construction activities. You are invited to learn more during a Virtual Construction Open House to learn about upcoming ... More Information

SaMoTer: 31st edition postponed to 2023

SaMoTer, Veronafiere's triennial international construction machinery exhibition, will now take place in March 2023. In 2021 they will showcase a new in-quarry demo event:  the format will be ... More Information

Western Harbour Tunnel & Warringah Freeway Upgrade gets approval

Western Harbour Tunnel & Warringah Freeway Upgrade gets approval

The Western Harbour Tunnel and Warringah Freeway Upgrade (the project) - proposed by Transport for NSW - has been approved by the NSW Government (the Minister for Planning and Public ... More Information

TBM Alice begins digging towards Central Business District

TBM Alice begins digging towards Central Business District

TBM Alice has begun its journey beneath St Kilda Road and the Yarra River, to connect the Metro Tunnel’s new Anzac and Town Hall stations in Melbourne, Australia. It follows the December ... More Information

Epiroc supports new world standard in sustainable underground mining with yet another battery-electric order

Epiroc supports new world standard in sustainable underground mining with yet another battery-electric order

In Kiruna, Sweden, tests are ongoing to set a new world standard for sustainable mining. In the process to achieve this, LKAB has ordered industry-leading battery-electric vehicles from Epiroc to be ... More Information

Breakthrough on DTSS Phase 2 for Penta-Ocean Koh Brothers JV

Breakthrough on DTSS Phase 2 for Penta-Ocean Koh Brothers JV

In December TBM Buroh (diameter 4.6 m) completed the 1.3 km first tunnel drive of the DTSS Phase 2 in Singapore (Contract T-08).  As part of DTSS Phase 2, the existing tunnel system will be ... More Information

Harding Prize Entry

Harding Prize Entry

Press release - Applications are now sought for this year’s BTS Harding Prize. The competition is open to all tunnelling engineers of the age of 33 or below at the end of the previous year. ... More Information

Updates for the metro line 11 extension in Paris

Updates for the metro line 11 extension in Paris

Since the launch of TBM Sofia at the beginning of 2020, all construction sites for the future stations of the line 11 extension have been focused on the passage of Sofia through the station ... More Information

BTS January Meeting : Three Great Challenges - Experiences from TBM Tunnelling in Difficult Ground

On Thursday 21st January 2021 at 18:00 hrs [GMT] Online at : https://youtu.be/SN3htCiU3FA  Lok Home – President, The Robbins Company will be hosting a webinar on youtube called Three ... More Information

Pawtucket Tunnel Project

As part of the program to improve water quality in Narragansett Bay, the Narragansett Bay Commission has issued to CB3A joint-venture notice to proceed with the work on the Pawtucket Tunnel Project. ... More Information

Mumbai coastal road - TBM Mavala Launched

On the 11/01/2021 the official launching ceremony for the TBM named Mavala was held, to see the ceremony please click here for the video. The TBM will dig the 3.45 km twin tunnel from Princess ... More Information

Last Tideway TBM begins journey

Last Tideway TBM begins journey

The team on TBM Selina at Chambers Wharf has broken ground on the final 5.5km stretch of the super sewer.   The machine is the last on the project to get underway journeying from Bermondsey to ... More Information

Final breakthrough for TBM Krishna 1 on metro line 3 in Mumbai

Final breakthrough for TBM Krishna 1 on metro line 3 in Mumbai

TBM Krishna 1 has reached the Dadar Metro Station: it’s the 35th breakthrough on metro line 3 in Mumbai, click here for the video. With this, MMRC has successfully completed the 10.96-km long ... More Information

TBMs Launched for Railway tunnels in Lodz

TBMs Launched for Railway tunnels in Lodz

At the end of 2020 two TBMs Katarzyna and Faustina began their tunnelling journey between the Lodz Fabryczna station and Lodz Kaliska e Lodz Zabieniec in Poland.    Katarzyna - the ... More Information

Press release - Implenia wins major order for A7 Altona Tunnel in Hamburg

Implenia, together with project partner HOCHTIEF, has been awarded the contract to build the 2.2-kilometre-long Altona noise protection tunnel on the A7 motorway in Hamburg. The net contract is ... More Information

Cross River Rail begins tunnelling

Cross River Rail begins tunnelling

TBM Else - the first of Cross River Rail’s two 1350 t TBMs in Brisbane - has been moved into position underground in the Woolloongabba site’s station cavern to commence tunnelling on the ... More Information

Tunnelling News

4000-tonne machines dig arterial route under Melbourne's west

The West Gate Tunnel Project is in full swing beneath Melbourne's inner west, with tunnel boring machines (TBMs) Bella and Vida at the helm... More Information

Gotthard drilling machine gets no further - now it has to be blown up

Forced break in the Gotthard road tunnel: After 190 meters, the drilling machine working on the second tube has come to an end for the time being... More Information

Construction begins on 6 Cross Island Line Phase 2 stations

Tunnel Boring Machine measuring 12.8m in diameter. The machine will “bore through the ground only once for the construction of the tunnel which ... More Information

Tunnel boring machine returns after installing $22 million outfall

A 19.5 tonne tunnel-boring machine docked at Onehunga Wharf on Friday afternoon after successfully tunnelling the $22m Clarks Beach Outfall over ... More Information

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

U.S. Tunneling Professionals Convene in Dallas at RETC 2025

The event drew approximately 1,400 people. Another highlight of the conference was the presentation of the now annual Underground Construction ... More Information

Construction of NY and NJ GatewayTunnel hits halfway mark

People are looking down at the ground from the Highline on Manhattan's West Side. Some parts of the new train tunnel structure ... More Information

Silicon Valley BART extension seeks new tunneling contractor

Silicon Valley BART extension seeks new tunneling contractor for construction. Maguire told reporters during a briefing Monday morning. He noted that VTA is trying to fill a $1.2 billion ... More Information

Tunneling In The Digital Age: Rethinking Subsurface Infrastructure

But successful construction is just the start of the journey. Underground infrastructure is a long-term investment—just look at the London Underground ... More Information

Sydney Moves Forward with Final Tunnelling for Harbour Project

Sydney prepares for the arrival of the largest TBMs in the Southern Hemisphere as the Western Harbour Tunnel project enters its final tunnelling ... More Information

Metrolinx seeks help to name 2 of its massive Ontario Line tunnel digging machines

Metrolinx is now accepting names for two of its giant tunnel boring machines (TBMs), which will be used for twin 16-metre-deep and six-kilometre-long ... More Information

Deutsche Bahn awards contract for Munich S-Bahn project

The contract involves structural works for the expansion, including the construction of tunnels and an underground station. The Tunnel Ostbahnhof JV, ... More Information

Excavation completed on Italian side of Brenner Base Tunnel

The tunnel boring machine (TBM) named “Flavia” successfully bored through the Alps beneath the Mules 2–3 section, reaching the Austrian border. More Information

Giant tunnel borer set for Shantou Bay project

A giant tunnel boring machine has been installed for tunnelling under Shantou Bay in Shantou, South China's Guangdong province. [Photo provided to ... More Information

€0.4bn road and tunnel project in Georgia

Work is proceeding on the Kvesheti-Kobi road and tunnel scheme in Georgia. The scheme is part of a larger project, being carried out with Chinese ... More Information

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

CERN releases report on the feasibility of a possible Future Circular Collider

The estimated cost of construction of the FCC electron–positron stage, including the tunnel and all the infrastructure, is 15 billion Swiss francs... More Information

TBM break through on Auckland's £915M wastewater megaproject completes 16.2km tunnel

Auckland's major wastewater infrastructure project, the Central Interceptor, has reached a significant milestone with the final breakthrough of ... More Information

In pics: construction site of Chongming-Taicang tunnel

A smart assembling vehicle works at "Linghang" large diameter shield tunneling machine at the construction site of the Chongming-Taicang tunnel, part of the Shanghai-Chongqing-Chengdu ... More Information

IN PICTURES: Spectacular images of the removal of HS2's huge tunnelling machine

TBM Sushila was used to construct part of the Northolt Tunnel – an 8.4-mile tunnel ... construction/london-tunnels/progress-3/northolt-tunnel/tbm- ... More Information

Historic tunnels uncovered beneath Salisbury station during £5.3M upgrade project

Engineers from Network Rail and South Western Railway have uncovered a network of tunnels and rooms beneath Salisbury station during ongoing £5.3M upgrades to the station’s forecourt... More Information

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels

Massive $450m road project connecting Russia and Georgia with six bridges & five tunnels. The new road will pass through Georgia along a trade route ... More Information

Buca Metro Tunnel Excavations Reached 50 Percent Level

Important progress is being made in the construction of the line, where four tunnel boring machines (TBMs), each 100 meters long, 7 meters wide and ... More Information

'Very promising' narrow-reef boring technology nearing rollout stage

A novel tunnel boring machine (TBM) will open up Bokoni's narrow tabular dipping PGM orebody to allow narrow-reef boring to take place, so that ... More Information

A vast undersea tunnel is being built

The 7.4 billion-euro ($7.7 billion) project is a huge undertaking, in every sense. Each section of the tunnel is colossal. These concrete structures ... More Information

National Grid gets planning permission for Grain to Tilbury upgrade with new Thames tunnel

National Grid has secured full planning approval for the Grain to Tilbury project, which includes a new power tunnel under the River Thames... More Information