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Snowy 2.0 confirms 4th TBM

A new tunnel boring machine will be deployed to help keep Snowy 2.0 on its delivery timeline, subject to approval by the NSW Department of Planning, Housing and Infrastructure. New ground testing ... More Information

Registration for WTC2025 is now open

The registration for the World Tunnel Congress 2025 in Stockholm is now open. In less than a year, WTC2025 will take place at Stockholmsmässan in Stockholm. Join WTC2025 to connect with ... More Information

TBM breaks ground in Watsonia for North East Link

The first of two massive TBMs - 90 m long, 15.6 m high, and 4000 t weight - has begun digging the 6.5 km twin road tunnels between Watsonia and Bulleen that will take 15,000 trucks off local roads ... More Information

Reusing dirt and rock as we build the North East Link tunnels

The TBM involved in the construction of the 6.5km North East Link road tunnels will excavate around 5 million tonnes of very deep underground dirt and rock: natural material that can be ... More Information

Breakthrough on Two Lines and First Connecting Passage of the Guangzhou Haizhu Bay Tunnel

Press release - On July 15th, the Guangzhou Haizhu Bay Tunnel project achieved a significant milestone with the successful breakthrough of both tunnel lines. This project marks the construction of ... More Information

Join Mapei’s Underground Technology Team for an Exciting Event at Our Mapei World London City Showroom

📅 Date: [Thursday 22nd AUGUST] 🕒 Time: [2 PM- 6 PM] 📍 Location: [Mapei World London City Showroom, 6 Great Sutton Street, London, EC1V ... More Information

PRESS RELEASE - We’re half way there! HS2’s Northolt Tunnel under the capital is 50% complete

Quartet of tunnelling machines boring the Northolt Tunnel between West Ruislip and Old Oak Common station have built half of the tunnel New video and images shows the unstoppable momentum of the ... More Information

TBM Ida completes 4 Km of the westbound tube of the Brenner Base Tunnel, H41 Lot

On 22 July, the TBM Ida celebrated the excavation of the first 4 km - out of its total 8.4 km - of the westbound line tunnel to the south at the Austrian H41 Sill-Pfons Gorge construction site. The ... More Information

TERRATEC Open TBM successfully breaks through on Mumbai's Ambitious Water Transfer Tunnel

TERRATEC celebrated a significant milestone in Mumbai’s ongoing water infrastructure development with the breakthrough of a 3.2m diameter Open TBM used by Contractor Soma Enterprise Limited on ... More Information

FAT passed for TBM 1412 to be involved in Palermo-Catania Railway Lot 1+2

The TBM 1412, an EPB with a diameter of 9.48 m, set to excavate Fiumetorto - Lercara Diramazione section (Lot 1+2), as part of the Palermo-Catania-Messina railway line project, has successfully ... More Information

Changsha Xiangya Road River-crossing Tunnel Is Opened to Traffic

On July 5th, Changsha Xiangya Road river-crossing tunnel was opened to traffic. The tunnel is the largest diameter shield machine tunnel in Hunan Province, China. The opening of the tunnel will ... More Information

Italy - Three new TBMs launched on the Naples-Bari and Catania-Messina Railway Lines

The works of RFI-Rete Ferroviaria Italiana (Leading Company of the FS Group Infrastructure Hub) for the major projects in Southern Italy continues at full speed. On 23 July the launch ceremony of ... More Information

Six contractors prequalify to build the new Roldal tunnel on the E134 in Norway

The following six contractors have asked to be prequalified to build Norway's fourth longest road tunnel, the single-tube 12.4km Roldal tunnel on the E134, which is one of the main connections ... More Information

Turin/Lyon - The EU allocates another EUR 700 million to the cross-border section of the project

The European Commission has announced the funding distribution for projects benefiting from the third edition (2024-2027 period) of the CEF, the EU’s programme for strategic investments in ... More Information

Fehmarnbelt Link updates

The construction of the 18 km Fehmarnbelt tunnel - between Rødbyhavn on Lolland and Puttgarden on the island of Fehmarn - formally began at the beginning of 2021 east of Rødbyhavn. The ... More Information

HSR Asia 2024

HSR Asia 2024 is a comprehensive 2-day programme that aims to explore the transformative benefits of high-speed rail, focusing on its impact on the environment, economies and societies. The ... More Information

Implenia wins contract for large, complex inner-city railway project in Gothenburg, Sweden

Press release - Contract to build a section of the “West Link” scheme, including railway tunnel and station, that will improve mobility in Gothenburg and western Sweden | ... More Information

Australia - Preferred bidder announced for second tunnelling contract of Suburban Rail Loop (SRL) East

Consortium Terra Verde - composed of Webuild (leader), GS Engineering & Construction of South Korea’s GS Group and Bouygues Construction Australia of France’s Bouygues - is the ... More Information

Billion dollar Gateway Tunnel Project Secures Federal Funding

Press release - After years of political wrangling and logistical setbacks, the $16 billion Gateway Tunnel Project, a critical infrastructure initiative aimed at improving the rail connection ... More Information

Preferred bidder announced for second tunnelling contract

Press release - Consortium Terra Verde is the preferred bidder for the second SRL East tunnelling contract to build the 10km of twin tunnels between Glen Waverley and Box Hill. The global ... More Information

TBMs nearly ready to dig Victoria's longest road tunnels

The 2 TBMs that will dig the North East Link road tunnels are a step closer to starting digging. The TBM cutterheads have been lowered into place in Watsonia. Next, the TBMs will be tested and ... More Information

First TBM Breakthrough for the Greater Cairo Metro Line 4 Project

On the 1st of July, Hassan Allam Construction celebrated the first successful TBM breakthrough for the Greater Cairo Metro Line 4 Project-Phase 1 from Station 6 to Station 7. Click here for the ... More Information

Brazil - Breakthrough at the Analia Franco station of the São Paulo Line 2 extension

On 27 June, the TBM Cora Coralina, broke through at the Analia Franco station, the second TBM for the extension from Vila Prudente to Penha of the São Paulo Metro Line 2-Green. The TBM - ... More Information

Western Sydney Airport metro tunnels complete

Press release - Greater Western Sydney is now home to landmark new 9.8-kilometre twin metro railway tunnels, with major tunnelling officially complete on the city-shaping Sydney Metro – ... More Information

TERRATEC EPBM to build Klong Saen Saeb Drainage Tunnel in Thailand

A new TERRATEC TBM will take part in the Klong Saen Saeb Drainage Tunnel Project in Thailand. TERRATEC celebrated the successful Factory Acceptance Tests of a new 4.27m diameter Earth Pressure ... More Information

USA/California - Caltrans Selects Tunnel Alternative for Last Chance Grade Project

Last Chance Grade (LCG) is a 4.83 km (3-mile) segment of US 101 just north of Wilson Creek, between Klamath and Crescent City. Landslides and road failures have been an ongoing problem for decades ... More Information

LEEA Builds #GLAD2024 Content to Finale

Press release - The Lifting Equipment Engineers Association (LEEA) has revealed more plans for Global Lifting Awareness Day (GLAD) on 18 July. A multidimensional campaign has been running since the ... More Information

VTA Celebrates its West Portal Groundbreaking Milestone for BART Silicon Valley Phase II Extension Project

On Friday, June 14th Santa Clara Valley Transportation Authority (VTA) held a historic ground breaking ceremony to mark the start of construction of its West Portal facility. This is the site where ... More Information

June updates for BBT

Press Release - H53 Pfons-Brenner construction site: the first segments reach the construction site The two TBMs Wilma and Olga - which from September 2024 will dig and line the twin tube 7.5km ... More Information

CM Lafer Srl equipment for new Himalayan railways in India

Italian company CM Lafer Srl in collaboration with Indian company Eurostar Engineering Pvt-Ltd has completed the supply of 30 formworks for in-situ final lining of tunnels excavated with NATM system ... More Information

Italy/Trentino-South Tyrol – Work has started on the southern entrance to the Trento railway bypass

Work continues on the construction of 13 km (Lot 3A) of the new railway line - almost entirely underground – linking to the future Brenner Base Tunnel. The new infrastructure will begin from ... More Information

MTBM Victoria completes its digging for Central Interceptor Project at Auckland

Victoria, the smallest of the three TBMs working on Watercare’s Central Interceptor project, has completed her micro-tunnelling work beneath Auckland and joined Domenica at the finish ... More Information

Switzerland – Inauguration of the new Albula railway tunnel

On Saturday 8th June 2024 - at the Preda portal at 1,800 meters above sea level - the Rhaetian Railway (RhB) officially inaugurated the new Albula railway tunnel (5860 m). The ... More Information

Brenner Base Tunnel update

Every year BBT organises an Open Day for the Brenner Base Tunnel project. They take place at the Austrian construction site H41 Sill-Pfons Gorge, and at the construction site of the Eisack ... More Information

Green light for funding for Point Erin Central Interceptor tunnel project extension

Funding has been confirmed to extend the Central Interceptor wastewater tunnel by more than 1 km from Grey Lynn to Point Erin, Herne Bay. This will reduce wet weather overflows and ... More Information

Federal Government Greenlights $6.8B Funding for Gateway Tunnel Project

The long-awaited Gateway Tunnel project is officially moving forward. The $16 billion initiative has secured a $6.8 billion full-funding grant from the federal government, marking a significant ... More Information

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Tunnelling News

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

RiverRenew Tunnel Project Nearing Completion

The RiverRenew Tunnel System Project, the largest infrastructure investment in Alexandria's history, is nearing completion. More Information

Sydney Metro West tunnels enter final stretch after big breakthrough

Two tunnel boring machines (TBMs) constructing the huge Sydney Metro West tunnels have made a smashing entrance 24 metres below the surface. More Information

Chennai Metro Rail launches first tunnel boring machine for underground tunnelling in Kolathur

Corridor 5 begins at Madhavaram Milk Colony and connects through Koyambedu, Porur, Alandur and other residential/commercial areas of the city to ... More Information

Element Six, Master Drilling Announce Tunnel Development Partnership

Element Six and Master Drilling will deliver a diamond-enabled solution designed to increase tunneling development speed, reducing costs and minimize the environmental impact of tunnel ... More Information

Gateway Project Tunnel Connecting NY and NJ Moves Forward

Five Gateway contracts have been awarded so far, including one on Predergast's first day for construction on the Manhattan side of the tunnel... More Information

HSR Xi'an – Yan'an: Completion of All Tunnels in the Project

The HSR Xi'an – Yan'an has completed the excavation of all tunnels, including the Tongchuan Tunnel. This is a key milestone in the construction ... More Information

Brazil's US$1bn underwater tunnel project making waves among potential bidders

The first underwater road tunnel project in Brazil is attracting interest from multiple potential bidders, an official familiar with the matter ... More Information

Element Six and Master Drilling Announce Strategic Partnership for Advanced Tunnel

Achieving high quality, nonexplosive tunnel construction with various aspects of value generated compared to traditional rock excavation methods is a ... More Information

Tutor Perini Wins a $1.2 Billion NYC Contract

A joint venture of Sylmar-based civil construction firm Tutor Perini Corp. and its subsidiary Frontier-Kemper Constructors has won a $1.18 billion contract to construct a pair of rail ... More Information

Milestone reached for $1.6b Auckland wastewater tunne

Watercare's Central Interceptor project has passed an historic milestone with the southern half of the 16.2 kilometre tunnel – Blockhouse Bay ... More Information

Elon Musk's 'Wormhole' Tunnel Promises To Carry 20,000 People Per Hour In Dubai

It’s been more than eight years since Elon Musk decided he was fed up with traffic and declared he’d start digging tunnels to revolutionize public transport across the United States. So ... More Information

First tender for Dubai’s $22bn tunnels due within days

Dubai Municipality is expected to tender the first two packages of the $22bn Dubai Strategic Sewerage Tunnels (DSST) project imminently... More Information

London's Thames Tideway Tunnel now fully connected

After 10 years of construction work, the last of the 21 connections of the Thames Tideway Tunnel was made to the city's Victorian sewage system. More Information

Silvertown Tunnel

Silvertown Tunnel is the Transport for London project looking to forge a brand-new connection between Silvertown and the Greenwich Peninsula... More Information

Dubai Loop: Elon Musk to Build Huge Underground Road Network

Musk's The Boring Company, which is responsible for building a similar project in Las Vegas, aims to create 17 kilometers of tunnel capable of ... More Information

Wisconsin approves $4.5m tunnel lighting project

Wisconsin Governor Tony Evers has approved a $4.5m lighting systems upgrade project in various tunnels in Milwaukee County, Wisconsin. More Information

$1.18bn Manhattan Tunnel contract awarded as part of $16bn Hudson Tunnel Project

The Hudson Tunnel Project is the key section of the Gateway Programme, which is a comprehensive rail infrastructure investment aimed at boosting ... More Information

North East Link continues to forge ahead towards completion

Tunnelling will soon commence on Victoria's longest twin road tunnels – the North East Link tunnels – as two massive tunnel boring machines (TBMs) are ... More Information

Africa's huge £8.5m tunnel cuts up to 26 minutes off journeys to major capital city

The tunnel is to be constructed within the next three years. This project will not only create 500 jobs in the construction ... More Information

CMRL's tunnel boring machine from Panagal Park reaches Kodambakkam station after a year

Chennai Metro Rail's Phase II Project faces delays as tunnel boring machines 'Pelican' and 'Peacock' progress towards Kodambakkam... More Information

$800-million twin-tube tunnel, longest in the Philippines, nears 'breakthrough'

A senior agency official stated on Thursday that the tunneling phase of the Davao City Bypass Construction Project will achieve a long-awaited ... More Information

The World’s Largest Immersed Tunnel Is Being Built—And It’s Done Without a Tunnel Boring Machine

When we think about groundbreaking advancements, our minds often jump to cutting-edge technology like smartphones or supercomputers. But some of the most awe-inspiring innovations are ... More Information

Brenner Base TBM enters 'highly fractured' fault zone

A tunnel boring machine (TBM) working on the northernmost active construction lot of the Brenner Base Tunnel project has entered a “highly ... More Information

India building a historic Undersea Tunnel for Mumbai-Ahmedabad Bullet Train Project

He stated, "All high-quality safety norms have been adopted in the construction of this India's first carefully designed undersea tunnel project." The ... More Information

Norway's Incredible Ship Tunnel Plan Is Back On Track

Despite pandemic-related and planning delays to the project, the Norwegian Coastal Administration is pressing ahead with plans to build the world's ... More Information

PM Modi inaugurates Z-Morh tunnel in J&K

The tunnel works with the under-construction Zojila tunnel to enhance travel efficiency and road connectivity. NEW DELHI: Prime Minister Narendra ... More Information

Metro's tunnel construction on track

Meanwhile, the 'Azad' TBM is already working on the 'up-line' tunnel for the same stretch. After arriving at Transport Nagar, both TBMs were 'dragged' ... More Information

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