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Canada – Latest News on Eglinton Crosstown West Extension and Scarborough Subway Extension

The TBMs, which will dig the tunnels for the Scarborough Subway Extension and the Eglinton Crosstown West Extension in Toronto, arrived at the ports of Oshawa and Hamilton in mid-December 2021. ... More Information

Excavation for the ECRL’s Genting tunnel starts March 2022

The Malaysian Transport Minister Datuk Seri Wee Ka Siong has signed the full approval for the ECRL - East Coast Railway Link, Section C2 (ITT Gombak - Serendah - Puncak Alam - Port Klang), ... More Information

Single Bore Tunnel Remains the Best Option for BART Silicon Valley Phase II Project

Since 2016, the 8 km (5-mile) tunnel portion of the 9.66 km (6-mile), 4-station planned BART extension through downtown San Jose to Santa Clara has been the most studied and talked about aspect of ... More Information

HS2 reveals images of first landscaped ‘green tunnels’ for Bucks and Northants

Press release - New images showing the green tunnel at Greatworth, Northamptonshire, with similar designs planned for Wendover and Chipping Warden Modular design set to cut embedded carbon in ... More Information

Everything I learned in a morning hiding in a tunnel under the Chilterns – by Jonn Elledge

Hi Jonn – I hope you’re well. This is just a quick note to see if you would be interested in a guided tour of one of HS2’s first two tunnelling machines (TBMs)... They are ... More Information

ISAVFT 2022 - Extended Call for Papers deadline

The ISAVFT - International Symposium on Aerodynamics, Ventilation & Fire in Tunnels will be held at Brighton (UK) between the 28-30 September 2022. The Call for Papers deadline has been extended ... More Information

Robbins Crossover holes through in the Andes

A Robbins 4.6 m (15.1 ft) diameter Crossover machine holed through in the Andes Mountains of Chile in the last quarter of 2021. The XRE TBM bored a 3.3 km (2.1 mi) long tunnel for Chile’s Los ... More Information

Latest tunnelling updates from the Namma/Bangalore Metro

M/S Afcons Infrastructure LTD is working on the 3.655 Kms, between South Ramp to Rashtriya Military School (RT-01 Package), including the 3 underground stations Diary Circle, Mico Industries and ... More Information

Moscow BCL metro - All tunnels have been completed

On 29/12/2021 TBM Lilia completed the excavation of the last 1.2 km section of the BCL in Moscow, from the Nagatinsky Zaton station to the Klenovy Boulevard: click here ... More Information

New milestones for Pedemontana Veneta construction

At the beginning of December 2021, the Northern tube of a 6 km tunnel the broke through between Castelgomberto and Malo. Which allowed for a 35 km section of road between Bassano Ovest and ... More Information

Numerical standards and certifications to increase efficiency in the development of underground infrastructure projects – BIM for tunnelling

Numerical standards and certifications to increase efficiency in the development of underground infrastructure projects – BIM for tunnelling – written by Michel Rives from ... More Information

TERRATEC EPBMs are ready for India's first Regional Rapid Transit System - Delhi-Meerut Project

TERRATEC is pleased to announce the delivery of three (3) new 7.51m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) for India’s first Regional Rapid Transit System Project to ... More Information

Grand Paris Express - December updates

Line 15 South - The excavation of this line involved 10 TBMs, which installed 128,000 segments and 18,500 rings. In 2019 TBM Steffie-Orbival was the first machine to complete its section, followed ... More Information

Tunnelbuilder welcomes 4STREETS

4STREETS s.r.l. is a young company founded in the spring of 2016 by motivated and experienced entrepreneurs who, combining the skills they had acquired in managing numerous construction sites in the ... More Information

Breakthrough - Genoa Junction One project

On 21/12/21 the excavation activities for the new San Tomaso tunnel, a strategic part of the Terzo Valico dei Giovi – Genoa Junction One Project, and the first of the Genoa railway junction, ... More Information

HS2’s London Tunnels programme nears launch date as first TBM’s arrive

Press release - The start of tunnelling for HS2 in London is set to begin in 2022 and progress has been made with the delivery of two giant Earth Pressure Balance Tunnel Boring Machines (TBMs) to ... More Information

The UK’s largest Tunnel Boring Machine passes factory acceptance test and begins journey to the Silvertown Tunnel project

PRESS RELEASE - The Riverlinx Construction Joint Venture (BAM Nuttall, Ferrovial Construction and SK Ecoplant) delivering the design and build of the Silvertown Tunnel on behalf of Transport for ... More Information

Cross River Rail – Last breakthrough for the project

Today TBM Merle broke through at the Northern Portal site, bringing the Cross River Rail project’s year of tunnelling to an end, click here for the video. The Cross River Rail's twin tunnels ... More Information

Construction of Sornaistentunnel approved

Helsinki City Council have approved the Sornaistentunnel project between the Sornainen coastal road and the Hermann coastal road and its implementation in stages as follows: In the ... More Information

Clearwater Project Update

In October TBM Rachel began boring, stopping every 1.5 m (5 feet) to construct a ring of the tunnel wall. About 106 m (350 feet) of tunnel has been completed so far, and the pace is expected to pick ... More Information

The HRBT Expansion Project TBM Arrival Ceremony

Virginia Department of Transportation and Hampton Roads Connector Partners (HRCP) will celebrate the arrival of TBM Mary at The Port of Virginia Portsmouth Marine Terminal on the 14th December 2021. ... More Information

New section of Moscow’s BCL metro opened

Russian President Vladimir Putin and Moscow Mayor Sergei Sobyanin opened a new almost 24 km section of the BCL including 10 stations (Terekhovo , Kuntsevskaya , Davydkovo, Aminevskaya , Michurinsky ... More Information

Snowy 2.0 Ramps Up with commissioning of Second TBM

This month Snowy Hydro achieved another exciting milestone, with the commissioning of Kirsten, the second of three TBMs that will excavate more than 27km of tunnels for Snowy 2.0 pumped-storage ... More Information

The feasibility study for the Cluj-Napoca metro has been approved

The Cluj-Napoca City Council have approved the feasibility study (technical documentation and technical-economic indicators), drafted by the Joint Venture SYSTRA, SWS Engineering and Metrans ... More Information

7th Edition of the ITA Tunnelling awards – The winners 2021

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

Super sewer tunnel connects at Blackfriars site

The breaking out of the concrete plugs either side of the shaft at Blackfriars Bridge Foreshore signals the next step in secondary lining the main ‘super sewer’ tunnel. All sections of ... More Information

HS2 Launches First Midlands Giant Tunnelling Machine

Press release - Yesterday [2 December] HS2 CEO Mark Thurston pushed the button to start HS2’s tunnel boring machine on its one-mile journey under Long Itchington Wood in Warwickshire, marking ... More Information

Work begins on the German side of the Fehmarnbelt Tunnel Project

On the 29/11/2021 at 11h00a at the Fehmarnbelt tunnel construction site in Puttgarden, Danish Transport minister Benny Engelbrecht, together with Enak Ferlemann from the German Federal Government, ... More Information

Terzo Valico dei Giovi-Nodo di Genova project

The Terzo Valico dei Giovi-Nodo di Genova project has reached another milestone only 6 months after a breakthrough along the planned Valico Tunnel, which will become the longest railway tunnel in ... More Information

Hudson Tunnel Project - Update

Army Corps of Engineers Permit – The Gateway Development Commission has announced that the last major step in the federal regulatory process for the Hudson Tunnel Project has been completed ... More Information

TERRATEC delivers two TBMs for Kanpur Metro’s 1st Underground Section in India

Gulermak/Sam India JV gets ready to commence tunnelling on the Corridor-1 of Kanpur MRTS Project in India. Two 6.52m diameter TERRATEC Earth Pressure Balance (EPB) Tunnel Boring Machines have been ... More Information

Tideway - TBM Selina reaches halfway point in east London

Selina, the giant TBM creating the final, easternmost section of London’s new super sewer has passed the halfway mark on her underground journey towards Abbey Mills Pumping Station in ... More Information

PRESS RELEASE - First of Cross River Rail’s twin tunnels complete

The first of Cross River Rail’s Tunnel Boring Machines has seen the daylight, for the first time in ten months. The mega project is one of many being delivered by the Palaszczuk ... More Information

Breakthrough for TBM Armelle on Line 16

On 24/11/2021 Eiffage Genie Civil celebrated the breakthrough of TBM Armelle in Le Blanc-Mesnile station, Line 16, Grand Paris Express. Click here for the video, here and fr/127 for tunnel ... More Information

BBT - Exploratory tunnel excavation completed

On the 24/11/2021 TBM Serena with a diameter of 6.85m, a length of approximately 300m and weight 1,500 t has reached the Brenner Pass. The TBM has excavated over 14 km of tunnel in 3.5 years. The ... More Information

Progress at HS2 Superhub station Old Oak Common as construction of main station box begins

Press release - Work to construct the 850m-long station box at HS2’s Old Oak Common station began last month as concrete frame and substructure specialist, Expanded, started on site. Expanded ... 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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