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VTA Board Approves First Major Contract of BART Extension to Downtown San Jose/Santa Clara

Press release - At its May 5th regular board meeting, the Santa Clara Valley (VTA) Board of Directors voted unanimously to authorize the General Manager/CEO to execute the first in a series of ... More Information

The Norwegian Public Roads Administration and Bane NOR sign a cooperation agreement

Press Release - The Norwegian Public Roads Administration and Bane NOR signed a cooperation agreement on the €4.5 bn Arna-Stanghelle Joint Project After six years of planning, the mega-project ... More Information

Grand Paris Express - First breakthrough on Line 18

On 25/04/2022 the TBM Caroline reached the future Antonypole station in the Antony municipality for Line 18, of the Grand Paris Express project. The TBM - launched in December 2021 from the Marechal ... More Information

TBM Underway again! Dame Whina Cooper sets off on second tunnel dig

On 26/04/2022 the Dame Whina Cooper TBM - 130 m-long, 7.15 m-diameter and 910 t-weight – has been declared ready to bore and has been launched from 110 m within a mined tunnel at City Rail ... More Information

TERRATEC EPBM completes Bangkok Rama III Cable Tunnel Project

TERRATEC is proud to announce the completion of the Rama III Tunnel Project in Bangkok, Thailand. The tunnel was completed using a TERRATEC 4.27m diameter TBM EPB. It successfully holed ... More Information

Tunlift, the perfect solution for tunnel maintenance

Tunlift is a variable geometry lifting platform that has been specially developed by professionals in the sector. The "tunnel inspection" platform is based on a patented principle that allows ... More Information

Turin/Lyon - 10.5 km of the Base Tunnel completed

On the 28/04/2022 at Saint-Martin-la-Porte, in Val Maurienne, France excavation of the first 10.5 km of the Turin-Lyon base tunnel has now been completed:- click here for a video. At around 11:00 ... More Information

Second TBM starts her journey on the West Gate Tunnel

TBM Vida - 15.6m in diameter, 90m long and weighing 4000 t - is now on her way digging the 2.8km inbound tunnel for the West Gate Tunnel Project. Vida’s journey will take 12 months, with the ... More Information

Cross River Rail - Northern Tunnel Portal construction update

The TBMs - used for excavating the Cross River Rail’s tunnel in Brisbane - have now been taken away from site, allowing the gantry crane to be removed as well: click here for the video. ... More Information

Public comment period open on Massey Tunnel replacement

The early engagement phase of the environmental assessment process is underway for the proposed toll-free eight-lane tunnel to replace the aging George Massey Tunnel. The proposed ... More Information

Equipment arrives for Broadway subway project

The first shipment of parts for the TBM that will dig the Broadway subway project tunnels has arrived in British Columbia. The TBM components left Germany on 25/02/2022 and sailed ... More Information

Lower Thames Crossing invites shortlisted bidders to participate in dialogue

Press release - National Highways has (Tuesday 26 April 2022) invited shortlisted bidders to participate in dialogue for the £2.3 billion contract to build the tunnel and approach roads for ... More Information

Tunnelling Continues for the Clearwater Project

A TBM named Rachel continues to build a 5.49 m (18-foot) internal diameter tunnel for the Joint Water Pollution Control Plant (JWPCP) in Carson towards Royal Palms Beach in San ... More Information

Bramble, the first mini HS2 TBM

The site at Wormwood Scrubs is where HS2 will relocate the Stamford Brook Sewer and some utility services currently running under Old Oak Common Lane. This needs to be done in order to construct the ... More Information

Grand Paris Express - Final Breakthrough for TBM Armelle

TBM Armelle has reached its final destination at the Hugo manufact at Ville du Blanc-Mesnil on Line 16 for Grand Paris Express. The machine, launched from the Braque shaft in Aulnay-Sous-Bois, ... More Information

Final project for the Fontanabuona tunnel in Liguria, Italy

On 19/04/2022 the final design of the Val Fontanabuona Tunnel prepared by Autostrade per l'Italia was presented: a 230 million Euro project for a new junction on the A12 motorway and a 5.6 km long ... More Information

Construction of Prague’s metro Line D ready to start

At the beginning of March 2022, the Czecha Ministry of Transport rejected the appeal of opponents to the construction of Metro line D in Prague. They also confirmed that the Prague Public Transit ... More Information

Epiroc wins large order including battery machines and automation solutions for new mine in Canada

Epiroc, a leading productivity and sustainability partner for the mining and infrastructure industries, has won a large order for equipment, including battery-electric machines and automation ... More Information

Gennaretti centrifugal systems will be at GIC – Italian Concrete Days!

Press release - From April 28th to 30th GIC, the exhibition for technologies, plants and equipment related to concrete, will be held in the Piacenza Expo Centre in Italy. ... More Information

Tunnelling starts on the Eglinton Crosstown West Extension

On the 11/04/2022 Metrolinx marked a major milestone as tunnelling began on the Eglinton Crosstown West Extension, the 9.2-km extension of the Eglinton Crosstown LRT from Mount Dennis Station to ... More Information

Grand Paris Express - last TBM on Line 16

Press release - On 30/03/2022 at the construction site near Noisy-Champs station the name of the last TBM for Line 16 was unveiled. In keeping with tradition, the tunnel boring machine was ... More Information

Rail Baltica Procurement Webinar 2022

On 13/04/2022 at 12:00-15:00 (CEST)/ 13:00-16:00 (EEST) the Rail Baltica Procurement Webinar 2022 will take place. Click here to watch the event live and here for the program. During the event ... More Information

Minneapolis Central City Tunnel: Project overview

The City of Minneapolis Public Works Department is constructing a new storm tunnel parallel to an existing tunnel located under Washington Ave. S. between Nicollet Mall and Chicago Ave, enlarging a ... More Information

BBT - Breakthrough under Isarco river

On 07/04/2022 about a month after the start of the excavation work, the last main tunnel below the Eisack riverbed for the future railway Brenner Base Tunnel has broken through. A total ... More Information

Tunnelling contract EOI for Suburban Rail Loop in Melbourne

Expressions of Interest have opened for the longest tunnelling package in Victoria’s history - delivering around 16 kms of twin tunnels between Cheltenham and Glen Waverley for the Suburban ... More Information

Final connection tunnel complete as TBM Annie breaks through

Press release - A tunnel boring machine creating the final major connection tunnel into the super sewer has completed its 4.5km journey between Greenwich and Bermondsey. TBM Annie, named after ... More Information

Poland - Construction started on the Rzeszow Południe-Babica section of the S19 motorway

On 04.04.2022 a ceremony was held to mark the start of construction work on the section between the Rzeszow Południe and Babica interchanges of the S19 highway in the Pre-Carpathian Voivodeship in ... More Information

Ontario Line subway project breaks ground at Exhibition Station

Metrolinx marked the start of construction on the Ontario Line subway project, beginning with upgrades at Exhibition Station. These early works will be completed before major construction begins ... More Information

Robbins Main Beam Finishes Challenging China Drive

The breakthrough of an 8 m (26.2 ft) diameter Robbins Main Beam TBM at China’s Yin Han Ji Wei project is not only a cause for celebration, but also a triumph of technology and perseverance. The ... More Information

Green light for the third tube of the Rosenberg tunnel

At its meeting on 30/03/2022 the Swiss Federal Council approved the general project for the construction of the third tube of the Rosenberg tunnel on the A1 in St. Gallen; the two existing tubes ... More Information

Two autonomous TBMs for Sydney Metro West

For the first time in Australia, two autonomous TBMs (1,266 t and 165 m) will be used to build twin 9-km rail tunnels between Sydney Olympic Park and Westmead, part of the EUR1.45 bn (AUD2.16 ... More Information

TBM Mireille breakthrough for the Line16 of the Grand Paris Express

On 29/03/2022, TBM 8, christened Mireille, which had left Chelles less than a year ago, reached its first milestone by entering the future Clichy - Montfermeil station on Line 16 of the Grand Paris ... More Information

Progress at HS2’s Victoria Road site as base slab is completed

HS2’s Main Works Contractor, Skanska Costain STRABAG joint venture, SCS JV, have taken a major step forward in their work at the Victoria Road Site in Acton, completing the base slab ... More Information

Italy/Sicily – RFI will design a new project for the safety tunnel at Cefalù

The Cefalù Municipality reached an agreement with the RFI, for the construction of the evacuation tunnel serving the future Cefalù underground stop, along the Cefalù ... More Information

MAPEI's UTT Division - Santa Lucia tunnel

MAPEI's UTT Division have provided technological solutions and technical assistance for all the main applications related to excavation of the S. Lucia tunnel. The tunnel is on the new three ... More Information

Robbins Single Shield completes Canada’s Largest Outfall

Press release - On March 3, 2022, a 7.95 m (26.1 ft) diameter Robbins Single Shield TBM completed a record-setting run below Lake Ontario. The machine, for the Southland/Astaldi JV, bored 3.5 km ... More Information

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Tunnelling News

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

Right track tunnel of Huangjialing Tunnel in NW China's Gansu drilled through

A staff member works on the construction site of the right track tunnel of the Huangjialing Tunnel in Linxia Hui Autonomous Prefecture, northwest ... More Information

Shetland Islands tunnels plan takes 'huge step forward' with sonar investigations

This phase will further inform the project's development and feasibility. The tunnel project, seen by locals as pivotal for improving ... More Information

Construction of the Tarande tunnel begins next week

On March 17th, in Vilnius district Construction of a tunnel and other related infrastructure will begin at Taranda and Bukiškis. This project aims ... More Information

Delhi Metro's Golden Line achieves major tunnel breakthrough;

The construction of Delhi Metro's Golden Line achieved a major milestone on Thursday as the Tunnel Boring Machine (TBM) broke through at the ... More Information

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