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Planning for a metro extension linking Glenfield to the Western Sydney Aerotropolis underway

Work will start immediately on a AUD77.5 million business case to extend the Sydney Metro - Western Sydney Airport (WSA) Line from the Western Sydney Aerotropolis to Glenfield, via ... More Information

Topping out ceremony for the Fehmarnbelt link’s tunnel factory

Topping out ceremony for the Fehmarnbelt link’s tunnel factory

Press release - This month, Femern A/S and the main contractor, FLC, held a topping out ceremony at the Fehmarnbelt tunnel’s main construction site in Rødbyhavn on Lolland: the roof and ... More Information

The Fehmarn Link Business Conference (FLBC) will be held again on September 29, 2022.

The Fehmarn Link Business Conference (FLBC) will take place in Rødbyhavn on September 29, 2022 at 9.16. FLBC will primarily focus on the business opportunities that come in connection with ... More Information

Another major milestone

Press release - Earlier this month, another major milestone ahead of tunnelling for the Silvertown Tunnel was achieved when the first elements of the Tunnel Boring Machine (TBM) were lowered into ... More Information

Snowy 2.0 – June Updates

Lobs Hole - The TBM Lady Eileen Hudson has now excavated 2.2km of the main access tunnel, with 600 m remaining to reach the northern end of the power station complex. Once complete, the TBM ... More Information

Grand Paris Express - TBM Maud installs its first ring for Line 16

Another milestone has been reached on the construction site of line 16, lot 3 in Champs-sur-Marne in Ile-de-France! Last week TBM Maud, named in honor of Maud Tallet, mayor of ... More Information

New cross-connection for Södertörn

New cross-connection for Södertörn

The Swedish government is implementing the investment in a new road connection for Södertörn between E4 / E20 and road 73 to enable safe, efficient and sustainable travel. The Swedish ... More Information

TBM assembly has started for Broadway Subway in Vancouver

TBM assembly has started for Broadway Subway in Vancouver

At the end of May the 2nd and final shipment of TBM parts for the Broadway Subway Project arrived! Now assembly of the first TBM is under way at the future GNW-Emily Carr Station site. On 14/06/2022 ... More Information

The first TBM of the Chengdu Metro Line 18 breaks through

The first TBM of the Chengdu Metro Line 18 breaks through

On 06/06/2022 China Railway 22nd Bureau’ completed the first tunnel of Chengdu Metro Line 18 project, Phase 3. The TBM Excellence broke through and completed 3 months ahead of schedule. The ... More Information

First Breakthrough - Semmering Base Tunnel SBT1.1

First Breakthrough - Semmering Base Tunnel SBT1.1

Göstritz (lot SBT1.1) - On June 8th, 2022, after 8 years of construction, the 1st breakthrough took place between contract lot SBT1.1-Tunnel Gloggnitz and contract lot SBT2.1-Tunnel ... More Information

Ceremony held for the 1st TBM to be used for 2nd Gotthard tube’s access tunnel

The inauguration ceremony of the first TBM to be used to drive the access tunnel of the Gotthard motorway tunnel’s second tube was held on the 09/06/2022. The Client is the Federal Roads ... More Information

New milestones on the Hangzhou-Wenzhou Railway

Fuyou tunnel - On June 10th , after 610 days of construction, the Fuyou tunnel part of the Hangzhou-Wenzhou Railway, was successfully completed. It was built by the No. 1 Company of China Railway ... More Information

CODEL – tunnel analysers

CODEL – tunnel analysers

CODEL were the first company in the industry to sell dedicated tunnel analysers in the market, releasing the TunnelMaster in 1999. Prior to this, adapted stack emissions analysers for CO and ... More Information

North East Link TBMs on the way

Two giant TBMs - 90m long, 15.6 m in diameter and 4000 tons in weight - have been ordered from the German supplier Herrenknecht to help build the North East Link’s 6.5km road tunnels that ... More Information

Construction starts on Suburban Rail Loop East

A massive program of early construction work has kicked off in Clayton today for the Suburban Rail Loop (SRL) with the laying a new 630m sewer pipe – dug by a remote-controlled ... More Information

8th Edition of the ITA Tunnelling awards

Since 2015, the international competition "the ITA Tunnelling and Underground Space Awards" seeks and rewards the most ground-breaking innovation and outstanding projects in tunnelling and ... More Information

NAT 2022

The North American Tunneling (NAT) Conference – will be held in Philadelphia from 19-22 June 2022 - is the premier biennial tunneling event for North American tunnelling. This four-day ... More Information

Cross River Rail Project – June Updates

Cross River Rail Project – June Updates

The final delivery of railway tracks arrived at the Northern Tunnel Portal site in May 2022. In total, 9,570 m of railway tracks have been delivered to site and will be installed in the northern ... More Information

New Submission Deadline: 20 June 2022

New Submission Deadline: 20 June 2022

In response to the overwhelming demand, the deadline for the World Tunnel Congress 2023 for Abstracts' Submission is now extended to the 20 June, 2022.  This is your last chance to show your ... More Information

A fleet of TERRATEC EPBMs gear up for action on Chennai Metro Phase-II Tunnelling

A fleet of TERRATEC EPBMs gear up for action on Chennai Metro Phase-II Tunnelling

TERRATEC is pleased to announce the delivery of the first of five 6.61m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) that will be used by Tata Projects Ltd. for its underground ... More Information

Algiers Metro Breakthrough

Kahina the TBM built by SELI Overseas, who were employed by Algiers Metro has broken through. The 1380 m tunnel is the longest of the 9.6km El-Harrach – Aeroport section ... More Information

TLT-Turbo GmbH a Single-Source Solution

TLT-Turbo GmbH a Single-Source Solution

For over fifty years, TLT-Turbo has developed first-of-their-kind, fine-tuned, and advanced ventilation systems for road, railway and metro tunnels. TLT-Turbo focuses on the system as a whole to ... More Information

Epiroc launches new digital solutions for tunnelling construction

Press release - Epiroc expands its digital solutions portfolio within the construction industry by launching Mobilaris Tunnelling Intelligence, a decision support system for tunnelling ... More Information

WTC2023 - Abstracts' Submission

WTC2023 - Abstracts' Submission

Don’t miss the chance to publish your research/best practices at WTC2023: the deadline of the WTC2023 Abstracts' Submission, is quickly approaching. We would like to thank those who have ... More Information

BBT – Breakthrough in the Brenner Base Tunnel

BBT – Breakthrough in the Brenner Base Tunnel

On the 19/05/2022 at 13h45 an excavator broke through between lot H71 Eisack undercrossing (built by Webuild) and Lot Mules 2-3 (built by Webuild and Ghella), on the Italian side of the East line ... More Information

The Norrbotnia/ North Bothnia Line

The Norrbotnia/ North Bothnia Line

The EUR3.84 bn (SEK40 bn) Norrbotnia/ North Bothnia line is a 270 km new coastal railway between Umea and Lulea for faster, safer and more environmentally friendly travel and transport, which ... More Information

Robbins TBM takes on Karstic Limestone below St. Louis

Robbins TBM takes on Karstic Limestone below St. Louis

In Spring 2022, a specialized Robbins 4.1 m (13.5 ft) diameter Main Beam TBM launched in St. Louis, Missouri, USA, to complete a critical infrastructure tunnel for contractor SAK Construction. The ... More Information

The UDLP on display for the North East Link Tunnels for comment ahead of major construction.

Before major construction of the North East Link Tunnels gets underway, North East Link Program (NELP) is asking the local community what they think of the look and feel of what’s planned for ... More Information

Construction begins on Fehmarnbelt Tunnel entrance

On the 5th  May works officially began on the Fehmarnbelt tunnel portal on the Danish side, where train and car traffic will in future run through the 18-km-long tunnel to Germany. A ceremony ... More Information

The Elizabeth line set to open on Tuesday 24 May 2022

The Elizabeth line in London will open on the 24th  May 2022, with full services across the entire route introduced by May 2023.  The new railway being delivered by Crossrail Ltd will run ... More Information

Statens Vegvesen will prioritize 20 Norwegian road projects, worth EUR15bn.

On the 10/05/2022 and for the first time, the Norwegian Public Roads Administration has made a list of prioritized 20 road and tunnel projects for the next 6 years at an estimated cost of ... More Information

ECRL Project in Malaysia update

ECRL Project in Malaysia update

The construction of the 665 km East Coast Rail Link (ECRL) project has recorded overall progress of 28.57 %. The percentage includes construction works in four states, namely Kelantan, Terengganu, ... More Information

Kuwait - Sea Outfall tunnel for Umm Al Hayman Wastewater Treatment Project Completed

On the 10/05/2022 the joint venture between Al Hassanain (AHC) and Joseph Gallagher Limited (JGL) completed the 1,960 m Sea Outfall tunnel with an internal diameter of 2.2m, part of the Umm Al ... More Information

BBT – Excavation has started at the H52-Hochstegen construction lot in Austria

On 04/05/2022 a ground breaking ceremony was held for Lot H52 Hochstegen in the presence of Maria Lorenzatto, godmother of the tunnel, along with the various authorities and companies involved. The ... More Information

Normet acquires Aliva Equipment assets to strengthen its sprayed concrete offering

Normet has entered into an agreement with Sika to acquire its Aliva Equipment business assets. With the acquisition, Normet supports its growth strategy by strengthening its offering in sprayed ... More Information

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

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