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Sydney Metro West tunnels enter the final stretch as TBMs advance towards Parramatta

Two TBMs constructing the 24-km twin metro railway tunnels for Sydney Metro West have broken through solid rock walls to arrive at the junction caverns 24-m below the surface at Clyde. This latest ... More Information

Sydney Metro – Western Sydney Airport: Celebrating the completion of tunnelling and excavation

Sydney Metro – Western Sydney Airport (SM–WSA) has reached a significant milestone, with all major tunnelling and excavation work for the project now completed, including 9.8 kms of ... More Information

Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

 Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

On October 16, 2024, tunnel boring machine (TBM) Ruby began its journey to carve out the final section of the Sydney Metro West project, marking a significant step for this city-shaping ... More Information

Suburban Rail Loop (SRL) East - TBMs on the way

The first 4 TBMs, manufactured by Herrenknecht,  for SRL East will begin arriving on site next year. The TBMs will be in the ground in 2026 and they will drill 16kms of twin tunnels between ... More Information

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park The construction work to deliver the 24-km new Sydney Metro West railway power ahead. The mega project has recently achieved a slew ... More Information

Western Sydney Airport metro tunnels complete

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

Three tunnels done and dusted for Sydney Metro – Western Sydney Airport, one to go!

Three tunnels done and dusted for Sydney Metro – Western Sydney Airport, one to go!

Press release - Mega tunnel boring machines (TBMs) Catherine, Eileen and Peggy have completed their historic journeys to build metro rail tunnels for the Sydney Metro – Western Sydney Airport ... More Information

TBM Jessie ready to be launched for Sydney Metro West towards Sydney’s CBD

TBM Jessie ready to be launched for Sydney Metro West towards Sydney’s CBD

TBM Jessie,  the first TBM for the Sydney Metro West - Eastern Tunnelling Package,  is about to be launched. It will carve out a 2.3-km tunnel from The Bays to Hunter Street in the ... More Information

Sydney Metro – Western Sydney Airport tunnels on homestretch

Mega TBMs constructing the Sydney Metro - Western Sydney Airport southern tunnels are edging closer to their final destinations.     TBMs Eileen and Peggy have built 4.78 ... More Information

Sydney Metro West - TBMs Beatrice and Daphne reach Burwood North

Sydney Metro West - TBMs Beatrice and Daphne reach Burwood North

On the 30th April two TBMs Beatrice and Daphne arrived at Burwood North station site as the 24-km Sydney Metro West twin tunnels connecting Greater Parramatta and the Sydney CBD continue to take ... More Information

The final Sydney Metro West TBMs have arrived

The final Sydney Metro West TBMs have arrived

Sydney Metro West is gearing up to build Sydney’s second under-harbour railway crossing with the final TBMs arriving on site. The two TBMs will carve out the 2.3-km twin tunnels from The Bays, ... 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

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

Significant milestone on the Sydney Metro West project

The joint venture between Acciona and Ferrovial achieved a significant milestone on the Sydney Metro West project, marking a first in the southern hemisphere. Two tunnel boring machines (TBMs) ... More Information

Sydney Metro - Two milestones on Western Sydney Airport project

Sydney Metro - Two milestones on Western Sydney Airport project

The first milestone is the launch of the fourth TBM, named after Marlene Kanga AO, and the second milestone is the breakthrough of the TBM Peggy at the Airport Terminal Station.  ... More Information

Sydney Metro - Western Sydney Airport tunnelling kicks off

Sydney Metro - Western Sydney Airport tunnelling kicks off

On July 04, 2023 TBM Peggy began its journey at the future Airport Business Park Station, carving out the first 5.5-km sections of the second tube of the twin metro tunnels towards the Aerotropolis. ... More Information

TBM Eileen completes first historic breakthrough for the Sydney Metro – Western Sydney Airport project

On 25/07/2023 the 1,066-t TBM Eileen reached the Airport Terminal metro station site, marking the first tunnel breakthrough for the city-shaping Sydney Metro – Western Sydney Airport ... More Information

A third TBM has been launched for the Sydney Metro - Western Sydney Airport

A third TBM has been launched for the Sydney Metro - Western Sydney Airport

Last week a third TBM has been launched for the Sydney Metro - Western Sydney Airport project at Orchard Hills.  The TBM is named after Catherine White, who has worked tirelessly to advocate ... More Information

Sydney Metro West - TBM tracker

The TBMs Daphne and Beatrice are driving the tunnels from The Bays to Sydney Olympic Park as part of Sydney Metro West: TBM Daphne already 327 m into its 11-km journey from The Bays to Sydney ... More Information

Sydney Metro - Western Sydney Airport tunnelling kicks off

Sydney Metro - Western Sydney Airport tunnelling kicks off

On July 04, 2023 two 1,066-t TBMs Eileen and Peggy started their journeys at the future Airport Business Park Station, carving out the first 5.5-km sections of the twin metro tunnels towards the ... More Information

Gamuda Wins Major Transport Project in Australia

Press release - Gamuda Australia has been awarded a major transport project by the NSW Government, the Sydney Metro West – Western Tunnelling Package.  In a consortium with Laing ... More Information

First tunnel boring machines arrive for Sydney Metro West

First tunnel boring machines arrive for Sydney Metro West

The first two TBMs have arrived for the Sydney Metro West project, ready to start construction on the new 24-km tunnels which will connect Greater Parramatta to the Sydney CBD.   The two ... More Information

Sydney Metro West to tunnel under Sydney Harbour

Sydney Metro has received the green light for tunnelling between The Bays and Sydney CBD, completing plans for the 24 km of twin tunnels from Westmead to Hunter Street in the Sydney ... 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

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

First TBMs ordered for Sydney Metro West

Two 1266 tonne, 165 m long double-shield, hard rock, gripper-type TBMs have been ordered to build the city’s next metro rail tunnels as part of the Sydney Metro West project, with the first ... More Information

Sydney Metro West project - Make a submission for second EIS

The community can again have its say on the Sydney Metro West railway project, with the second Environmental Impact Statement for the mega project now on public exhibition.   The latest ... More Information

Sydney Metro West enters the next planning stage

On the Sydney Metro West project, the planning process has started for the construction of 9 new metro stations between Westmead and Hunter Street in the Sydney CBD – as well as the precincts ... More Information

Sydney Metro West received two major planning approvals

The Sydney Metro West project has received two major planning approvals, paving the way for mega TBMs to be in the ground by the end of 2022.   Planning approval has been granted for the ... More Information

Winners of the ITA tunnelling awards 2020

The winners of the ITA tunnelling awards 2020 are :- MAJOR PROJECT OF THE YEAR (OVER €500M) John Holland CPB Ghella Joint Venture Tunnelling and Station Excavation Works for the Sydney ... More Information

Cross River Rail’s first mega machine ready to go

Cross River Rail’s first mega machine ready to go

The first of the two TBMs that will excavate the bulk of Cross River Rail’s 5.9km twin tunnels is passing factory acceptance testing, before being disassembled and transported by trucks to ... More Information

ITA Tunnelling Awards 6th edition - List of finalists

ITA Tunnelling Awards 6th edition - List of finalists

Online Conference and Ceremony - The international competition launched in 2015 by International Tunnelling and Underground Association (ITA) returns in 2020 for a promising 6th edition. For 5 ... More Information

Tunnel cross passages near completion

Tunnel cross passages near completion

Work is nearing completion on the cross passages which connect the new metro railway tunnels between Chatswood and Sydenham. Cross passages are an important safety feature of the Sydney ... More Information

TBMs arrive to dig Cross River Rail tunnels

At the beginning of August two TBMs (weight 1350 t and 165 m length)  arrived in Queensland, ready to be fitted out before being deployed to dig the Cross River Rail twin tunnels in early 2021. ... More Information

The Sydney Metro West planning process

The environmental assessment process for Sydney Metro West is being done in stages in recognition of the size of the project. Stage 1 seeks approval for station excavation and tunnelling between ... More Information

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Tunnelling News

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

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