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

Transport infrastructure: EU invests EUR 5.4 billion to support key projects across the continent

   135 transport infrastructure projects - among the 399 applications submitted under the CEF (Connecting Europe Facility) - applications closed on 19 January 2022 - have been ... More Information

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

Tunnelling News

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information

Athens Metro Line 4 works to finish by 2029

The construction of Athens Metro Line 4 is progressing steadily, with the entire project ... Tunnel mistakenly excavated in Athens metro project. More Information

First trains on track to run through Metro Tunnel within three months

Melbourne's $15.5 billion Metro Tunnel could be switched on in as little as three months as construction wraps up at two CBD stations and trains ... More Information

Petersburg crews to begin tunnel project in response to ongoing flooding, damage - WRIC

As ongoing water issues have caused significant damage to infrastructure around Petersburg, the Old Towne neighborhood ... More Information

Intelligent optimization framework for tunnel construction

Tunnel construction forms the foundation of railway development and is essential for ensuring route continuity and operational efficiency. However, ... More Information

São Paulo positions TBM for next phase of Line 2-Green

A major milestone was reached on Monday (1 September) with the lowering of the cutter head of the tunnel boring machine (TBM) Cora Coralina... More Information

The 700-ton machine that'll dig NYC's Second Avenue subway extension

NYC has a new tunnel boring machine in its toolbox for the expansion of the line under 2nd ave. If you've never seen some BIG earth moving machines, ... More Information

Light at the end of the tunnel showing for Mount Washington transit project

The project is expected to be completed in October. New tracks finally emerge from the Mount Washington Transit Tunnel as a part of Pittsburgh ... More Information

Davao City Bypass South Tunnel hits breakthrough towards improved connectivity

The Construction Project with the ceremonial breakthrough of the southbound tunnel, marking the complete excavation from opposite ends of the ... More Information

Which companies are bidding for the US$2.3bn highway and tunnel contracts in Brazil?

The project in Brazil, as it will be the country's first underwater tunnel,” the person added. The project involves construction of a 1.5km tunnel ... More Information

US Northeast Rail Corridor Gets a Major Makeover with Tunnel and Bridge Replacements

This project is designed to replace tunnels severely damaged by Superstorm Sandy, ensuring smoother and more reliable service for Amtrak, NJ Transit, ... More Information

DPWH, JICA celebrate breakthrough of Southbound Tunnel in Davao Bypass

The event marked the successful connection of the tunnel's north and south ends. The ... More Information

Jacobs joins Ramboll on Marselis road tunnel project in Denmark

Danish Road Directorate senior project manager Michael Schmidt Vosgerau said: “It is a complex task to build a tunnel on one of the busiest access ... More Information

Planning continues for Midway Tunnel, Safe Streets for All projects

The Midway Tunnel project is a $13.4 million plan ... construction of a new overpass bridge and pedestrian and bicycle walkway above the tunnel. More Information

Four million tons of clay moved in HS2 excavation

Construction on HS2's second-longest tunnel started in October 2022. The rotating cutters cut away clay and other material at a rate of about 50ft ... More Information

Jacobs Has Design-CM Role on $640M Denmark Tunnel, With Ramboll as Key Consultant

Set to begin construction in 2028, Marselis Tunnel project is core component of the country's 10-year Infrastructure Plan 2035. By Emell D. Adolphus. More Information

Elon Musk's $760,000,000 plan to build underground tunnels beneath Houston, Texas

Elon Musk's next big construction plan from The Boring Company could build $760000 worth of tunnels beneath Houston to help with flooding... More Information

Kerala Moves Closer To Vizhinjam–Balaramapuram Tunnel Rail Project

The Kerala government is preparing to invite bids next month for the tunnel rail project linking Vizhinjam International Seaport with ... More Information

Norway's Ship Tunnel Project Under Threat as Costs Rise

New cost estimates suggest the ambitious project will far exceed its approved budget, raising questions about whether it will ever be built. More Information

Davao City Bypass southbound tunnel nears breakthrough

The Department of Public Works and Highways (DPWH) announced that the southbound tunnel of the Davao City Bypass Construction Project (DCBCP) is ... More Information

CA should pursue better alternatives to the costly Delta Tunnel Project Stocktonia

Governor Gavin Newsom is attempting to fast-track the construction of a massive, budget-busting water tunnel through the Delta to ship freshwater to ... More Information

Physical Origins of Shear Strength Fluctuations in Fault Gouges

Fault gouge is rock texture within fault zones that may include rock fragments (RF) and foliated structures. Previous studies have primarily focused on remould soils, the natural structure ... More Information

Webuild expands its role in high-speed rail projects

Four modern tunnel boring machines will be deployed to ensure precision and safety in complex geological conditions. Once completed, the old single- ... More Information

Hudson Tunnel Project advances as tunnel boring machines near completion

The Hudson Tunnel Project hit a key milestone as massive tunnel boring machines near completion, with delivery set for November. More Information

Nagdhunga tunnel in final stages of construction

If we look at the history of road construction and development in Nepal, there are various records of road construction starting from the Rana period. According to articles published in ... More Information

Boring of tunnel across Yellow River completed in China's Shandong

Constructed by using a "Shanhe" shield machine with a 17.5-meter excavation diameter, this double-deck, two-way, six-lane tunnel stands as the world's ... More Information

The £1.6bn plan for world's deepest underwater road tunnel leaving 'no room for error'

Opening of Rogfast tunnel under construction. The Rogfast tunnel will be the longest and deepest undersea road tunnel on Earth. (Image: SKANSA). A ... More Information

Tunnelling complete on NSW's Coffs Harbour bypass project

Tunnelling has been completed on the A$2.2bn (£1.1bn) Coffs Harbour bypass project in New South Wales, Australia, with the excavation of the third ... More Information

Veidekke acquires tunnel construction contract for Gothenburg's West Link Project

Veidekke has received a contract from the Swedish Transport Administration to build the Stora Hamnkanalen tunnel, a component of the West Link ... More Information

German Rail completes construction of Rastatt Tunnel

GERMAN Rail (DB) has completed civil works on the new 4270m twin-bore Rastatt Tunnel, a major component of the project to widen to four tracks the ... More Information

Final contracts signed for Eastern Freeway transformation

A huge amount of work is underway to build North East Link and upgrade the freeways – two tunnel boring machines are digging deep under Rosanna ... More Information

Progress on Sydney pipeline duplication

Bouygues Construction Australia and Rob Carr have launched a tunnel boring machine (TBM) on Sydney Water's Thornleigh pipeline duplication ... More Information

The latest plan to connect BART to downtown San Jose: One tunnel rather than two

When BART and Santa Clara Valley Transportation Authority first discussed plans to send trains rolling under downtown San Jose, transit officials contemplated a design with two tunnels ... More Information

Nashville Tesla tunnel: Here's when construction could start on the Music City Loop

Elon Musk's The Boring Company is currently in the design phase of constructing a tunnel connecting downtown Nashville to the Nashville ... More Information

World's longest underwater 'mega tunnel' to cost $46 billion but will halve 21-hour drive

Oddvar Kaarmo, the Rogfast project manager, cited additional motivation for the tunnel's construction: "The port at Mortavika is quite exposed and ... More Information