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Toulouse metro updates

Press Release - Catellan's Marguerite TBM delivered - On 29 February, Catellan's Marguerite, the third TBM of Line C of the Toulouse metro, was delivered. The first parts will reach the construction ... More Information

Cabinet approves two corridors of Delhi Metro Phase-IV

The Union Cabinet chaired by Prime Minister Shri Narendra Modi approved two new corridors - 20.762 km totally - of Delhi Metro's Phase-IV project which are expected to further improve the Metro ... More Information

CRCHI uses innovative Underground Pipeline Network Equipment on Construction Sites

On February 7, a significant breakthrough was achieved at the construction site of the Bang Pakong-south Bangkok power plant gas transmission pipeline project in Thailand. The first section of the ... More Information

Final leg for two TBMs on the Broadway subway project

Final leg for two TBMs on the Broadway subway project

The Broadway Subway Project Corporation (BSPC) is extending the Millennium Line from VCC Clark Station to Arbutus Street. The Project scope includes 700m of elevated guideway extending west from the ... More Information

Australia - Halfway mark reached on Western Sydney Airport project

Australia - Halfway mark reached on Western Sydney Airport project

TBMs Catherine and Marlene are halfway to St Marys after each building 2.4 km of tunnel for the Sydney Metro - Western Sydney Airport project. They broke through at the Claremont Meadows ... More Information

Australia - News on Sydney Metro West project

Australia - News on  Sydney Metro West project

Press release - The first service tunnel to connect the 24-km Metro West line to a new stabling and maintenance facility at Clyde has been completed, ticking off another significant milestone for ... More Information

Start of the Rekalde Bypass project in Bilbao, Spain

Start of the Rekalde Bypass project in Bilbao, Spain

The Department of Infrastructures and Territorial Development has awarded to the joint venture comprising Typsa, Fulcrum and Tekia the EUR 5,805,580.06 (VAT included) the contract for the design of ... More Information

TBM Wilma is ready for the Brenner Base Tunnel

TBM Wilma is ready for the Brenner Base Tunnel

On 8 march 2024 BBT SE and H53 Consortium consisting of Porr Bau GmbH, Marti GmbH Austria and Marti Tunnel AG Switzerland completed the factory acceptance of Wilma. This will be the first of the two ... More Information

Grand Paris Express – Excavation of Line 16 completed

Grand Paris Express – Excavation of Line 16 completed

After more than four years of work and the use of seven TBMs, the tunnel of Grand Paris Express Line 16 is now fully excavated.  On Monday, 26 February 2024, the TBM Houda reached the Mare au ... More Information

The last HS2 TBM in the West Midlands starts digging towards Birmingham

The last HS2 TBM in the West Midlands starts digging towards Birmingham

On 05 March 2024 HS2 launched the last TBM to dig tunnels for the new high speed railway in the West Midlands. The 1,600 t weight and 125 m long TBM has started on its journey to dig the second bore ... More Information

Excavation of tunnel for Mularroya dam in Spain complete

On March 1, the joint venture Mularroya, composed of Acciona and Sacyr, celebrated the final breakthrough for the 12.6km-long water transport tunnel in the Mularroya dam project in the province of ... More Information

Excavation completed of Oural railway tunnel

Excavation completed of Oural railway tunnel

On 28 February 2024, Ferrovial on behalf of Adif completed the excavation using the drill&blast method of the new 1.9 km Oural tunnel (average advance was 5 m/day). The tunnel was built parallel ... More Information

CRCHI Slurry Pipe Jacking Machine Sets Sail for Colombia

CRCHI Slurry Pipe Jacking Machine Sets Sail for Colombia

In February, CRCHI (China Railway Construction Heavy Industry) completed assembly of its slurry pipe jacking machine in Changsha, China, successfully passing the acceptance inspection. This ... More Information

Call for Papers: World Tunnel Congress 2025 Focuses on Sustainable Future in Tunnelling

The World Tunnel Congress 2025 is excited to announce the Call for Papers for its upcoming congress to be held in Stockholm. Themed 'Tunnelling into a Sustainable Future,' the congress will ... More Information

Norway - Priority list for stone from Stad ship tunnel completed

The dimensions of the Stad ship tunnel are massive with a height of 50 m and a width of 36 m, in a length of 1,700 m. In total, more than three million cubic meters of solid rock must be removed ... More Information

Norway - Breakthrough was marked in the Åstunnel

 Norway - Breakthrough was marked in the Åstunnel

On 29 February at exactly 3 p.m a further breakthrough happened in the twin tube Åstunnel in Levanger municipality, on the E6 between Kvithammar and Åsen. Nye Veier is the ... More Information

Geofluid 2026: an even more international edition

Geofluid 2026: an even more international edition

Piacenza Expo is already at work for the new edition of GEOFLUID, the international exhibition of technologies and equipment for the exploration, extraction and transport of underground fluids, a ... More Information

Turin/Lyon – TELT's fifth TBM has been delivered

On February 29th, 2024  the fifth of the seven TBMs for the new Lyon-Turin railway line was delivered to the French-Italian group of companies ELYOT, consisting of Eiffage Génie civil ... More Information

BBT - New milestone for the TBM Ida on the H41 Sill-Pfons Gorge construction site

The TBM Ida in the H41 Sill-Pfons Gorge lot of the Brenner Base Tunnel is continuing its journey through the westbound line tunnel in a southerly direction.  On Sunday, 25 February 2024, ... More Information

Historic breakthrough for HS2’s longest tunnel

Historic breakthrough for HS2’s longest tunnel

HS2’s first giant TBM – which launched almost 3 years ago – broke through on 27 February at the end of her 16 km (10-mile) journey under the Chilterns, excavating the longest ... More Information

Hinkley Point C tunnels ready for connection to Bristol Channel

Hinkley Point C’s tunnels are ready for the connection to the Bristol Channel to be completed - marking a major step in the construction of the power station’s cooling water system. Six ... More Information

HS2 launches third TBM under capital building the Northolt Tunnel

On 25th February HS2’s London tunnels programme passed a major milestone as the third TBM being used as part of the project was launched.  TBM Emily, named after Emily Sophia Taylor who ... More Information

WTC 2025 - Call for papers

The World Tunnel Congress 2025 will focus on sustainability, innovation, and Tunnelling into a sustainable future. Researchers, academics, and professionals are invited to contribute to the ... More Information

BBT - Take part in choosing the names of the two new TBMs for the Brenner Base Tunnel

Until 12 noon today, 22 February, you can participate in the choice of names for the two 160 m long TBMs that will come into operation in autumn 2024 for the excavation of the Austrian Pfons-Brenner ... More Information

India - Hard Rock Double Shield TBM is belting along with its Continuous Conveyor on the Vishnugad-Pipalkoti Hydropower project

India - Hard Rock Double Shield TBM is belting along with its Continuous Conveyor on the Vishnugad-Pipalkoti Hydropower project

TERRATEC is delighted to announce that the Ø9.86m Hard Rock Double Shield TBM has made significant progress for the Vishnugad-Pipalkoti Hydropower Project in India. The machine excavated an ... More Information

Italy/Umbria-Marche – Guinza tunnel E78 works begin

On 12 February 2024, Anas and the contractor CEC - Consorzio Stabile Europeo Costruttori from Perugia started the works for the opening to traffic of the Guinza tunnel. The tunnel is between the ... More Information

Extending the Docklands Light Railway to Beckton Riverside and Thamesmead

Extending the Docklands Light Railway to Beckton Riverside and Thamesmead

Transport for London has considered several options to find the right public transport solution to serve Thamesmead and Beckton Riverside. These options were reviewed and compared based on cost, how ... More Information

Swiss Tunnel Congress 2024

The Swiss Tunnel Congress (STC) will be held from 5 to 6 June 2024 at the KKL in Lucerne. The excursions (Gotthard Road Tunnel, Gubrist Tunnel, Sihl-Lake Zurich Spillway Tunnel) will take place on 7 ... More Information

Small businesses win big with £millions more HS2 orders

Press release - Britain’s biggest construction project, HS2, is helping the UK’s small business community to thrive. New figures show HS2’s civils contractors doubled their total ... More Information

France - FAT passed for TBM Berthe de Puybusque for the Toulouse metro line C

A new milestone was reached on Thursday 25 January, with the factory acceptance of the Berthe de Puybusque TBM at Thieux. It will then be transported to the Line C worksite at La Vache during ... More Information

Chennai Metro - Launched TBM Pelican for Corridor 4, UG 02 at Panagal Park Station

Chennai Metro - Launched TBM Pelican for Corridor 4, UG 02 at Panagal Park Station

CMRL - Chennai Metro Rail Limited - in the presence of senior officials from CMRL, General Consultants, M/s AEON Consortium, and ITD Cementation - launched the TBM Pelican (S1075B)  that will ... More Information

TBM for new U2 metro line in Vienna is ready for delivery!

On January 31, 2024 Wiener Linien and the U2 17-21 consortium, consisting of Strabag and Porro Group, welcomed the news that a TBM  (120 m length and 1,200 t weight) to be used for the ... More Information

Intermat 2024 - The exhibition dedicated to durable construction solutions and technologies

Intermat 2024 - The exhibition dedicated to durable construction solutions and technologies

Intermat 2024 returns after a six-year hiatus due to the pandemic. It will take place in Paris from 24-27 April 2024, placing the themes of decarbonisation and digitisation at the heart of the ... More Information

TERRATEC Rock Slurry TBM excels in Mumbai Sewage Disposal Project

TERRATEC Rock Slurry TBM excels in Mumbai Sewage Disposal Project

TERRATEC is pleased to announce the successful deployment of its 3.85m Diameter Rock Slurry TBM in the Mumbai Sewer Disposal Project (MSDP) Stage-II - PST1. Executed through J. Kumar-MEPL JV, the ... More Information

Strata Worldwide Announces Equity Partnership and Global Distribution Agreement with Vernetzen

Strata Worldwide Announces Equity Partnership and Global Distribution Agreement with Vernetzen

PRESS RELEASE JANUARY, 2024 – NEWCASTLE, NSW, AUSTRALIA - Strata Worldwide, provider of advanced safety and underground networking technologies, has signed an Equity Partnership Agreement and ... More Information

Australia - Sydney Metro West updates

Australia -  Sydney Metro West updates

The last two of six TBMs, 1.3t in weight,  for the 24-km Sydney Metro West project between Westmead and the Sydney CBD have successfully completed their Factory Acceptance Tests. These machines ... 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