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Grand Paris Express – TBM Dorine almost ready for second departure from the Verdun shaft

Grand Paris Express – TBM Dorine almost ready for second departure from the Verdun shaft

On 30 August 2021, after 6 months of excavation at a depth of 20 m under the municipality of Bourget and the simultaneous installing of the tunnel lining, the TBM Dorine arrived at the Rolland shaft ... More Information

TERRATEC EPBM Ready for South Bangkok Cable Tunnel Project

TERRATEC EPBM Ready for South Bangkok Cable Tunnel Project

TERRATEC delivers the new 4.27m dia. EPB TBM that will be used by Contractor Nawarat Patanakarn PCL to supply the electricity in Bangkok, Thailand. TERRATEC is pleased to announce the delivery of a ... More Information

Four consortia are competing to build the Nordhavn tunnel

The Danish Road Directorate has now - after a pre-qualification - selected the four contractors who will have the opportunity to bid on the task of building the Nordhavn tunnel in Copenhagen, which ... More Information

Robbins Complimentary Webinar

Robbins Complimentary Webinar

LARGE DIAMETER XRE TBM: SUCCESS IN TURKEY & FUTURE APPLICATIONS. Can large diameter TBMs bore mixed ground efficiently? Join us as we discuss the incredible results achieved at Turkey’s ... More Information

PIARC Webinar - Road tunnels safety

On February 24th the ROAD TUNNELS SAFETY webinar will be held organised by PIARC Italy with the Italian Technical Committee "Tunnels", in collaboration with ANAS, the National Council of Engineers ... More Information

Updates from Moscow Metro Line construction

Updates from Moscow Metro Line construction

Troitskaya metro line  - The construction of the right running tunnel between the Mamyri and Bachurinskaya stations on the Troitskaya metro line has been completed. The TBM has finally ... More Information

Construction of metro Line 7 in Santiago begins

Construction of metro Line 7 in Santiago begins

On 17/02/2022  the  Chilean President of the Republic, Sebastián Piñera, together with the President of the Metro, Louis de Grange, kicked off the works with the start of the ... More Information

Romania - The Cluj-Napoca subway

Romania - The Cluj-Napoca subway

On 27/01/2022 the Romanian Minister of Transport, Sorin Grindeanu, signed a collaboration protocol for the construction of the subway in Cluj county, Cluj-Napoca and Floresti municipalities.  ... More Information

WTC 2023 Athens

The World Tunnel Congress 2023 will be held at the Megaron Athens International Conference Centre (MAICC) in Athens (Greece) from the 12th - 18th of May 2023.  The theme of WTC 2023 ... More Information

North Bristol relief sewer – a tunnelling breakthrough

The Wessex Water project to build a 5.5km tunnel for a new “super sewer” in Bristol has reached a major breakthrough.  After traveling for 19 months under the streets of Bristol, ... More Information

Corbulo tunnel updates

Corbulo tunnel updates

Now that the concrete work for the cross connections are ready, the teams are able to concentrate on the tunnel finishing, which includes barriers, emergency exit doors, cables and the installation ... More Information

Excavation begins on the Casacastalda tunnel in Italy

Excavation begins on the Casacastalda tunnel in Italy

The Joint Venture Besix (Brussels) and Donati (Rome) is doubling 3.1km of the SS 318 on behalf of the Italian Highway Authority ANAS.  At the beginning of February, one year after the start ... More Information

Australian Tunnelling Conference 2022

Australian Tunnelling Conference 2022

The 17th Australian Tunnelling Conference will be held from the 11 – 12 May 2022 at the Aerial UTS Function Centre in Sydney. As tunnels continue to provide the critical link to safer, ... More Information

Government moves ahead on replacement for Massey Tunnel

Nine contracts have been awarded for technical and engineering expertise to support the Province’s delivery of the Highway 99 Tunnel Program to replace the Massey Tunnel, which will improve ... More Information

Metrolinx to Release Ontario Line’s Draft Environmental Impact Assessment Report

The Ontario Line draft Environmental Impact Assessment Report (EIAR) will be made available for public review and comment from 07/02/2022 to 09/03/2022. The draft report describes existing ... More Information

The Yonge North Subway Extension

The Yonge North Subway Extension

The Yonge North Subway Extension (YNSE) is a long-awaited project that will bring faster transit to more people across York Region and Toronto. It will extend TTC's Line 1 (Yonge University) roughly ... More Information

Tunnelbuilder welcomes BAJAJ FIBRE TUFF

Tunnelbuilder welcomes BAJAJ FIBRE TUFF

The Bajaj Group - Nagpur is based in Nagpur, Maharashtra, India, and was incorporated in 1961. Bajaj Reinforcements LLP (ISO 9001:2008) are manufacturers of next generation "Macro Synthetic ... More Information

Major pylon removal project gets underway in Snowdonia

2022 will mark a significant milestone with the start on-site of a project to transform a nationally significant Snowdonia landscape that will ultimately remove the overhead electricity line and ... More Information

STRATA WORLDWIDE BECOMES RE-SYSTEMS’ EXCLUSIVE DISTRIBUTOR FOR GEL-TECH POLYMER RUBBER GEL TECHNOLOGY

STRATA WORLDWIDE BECOMES RE-SYSTEMS’ EXCLUSIVE DISTRIBUTOR FOR GEL-TECH POLYMER RUBBER GEL TECHNOLOGY

Press release - RE-Systems Group Americas and Strata Worldwide have signed a new distribution agreement naming Strata Worldwide the exclusive distributor of RE-Systems’ innovative Gel-Tech ... More Information

Sepulveda Transit Corridor scoping deadline approaching – share your comments by Feb. 11, 2022

Sepulveda Transit Corridor scoping deadline approaching – share your comments by Feb. 11, 2022

THE LA Metro is beginning the environmental review phase for the Sepulveda Transit Corridor project, which will build a heavy rail line or monorail between the San Fernando Valley and the Westside ... More Information

Purple Line tunnelling completed between Century City and Wilshire/Rodeo

Purple Line tunnelling completed between Century City and Wilshire/Rodeo

In January two TBMs Ruth and Harriet completed the 1.77 km (1.1 miles) tunnels between Century City and Wilshire/Rodeo station under downtown Beverly Hills  for Section 2 of the Purple (D Line) ... More Information

A submerged tunnel to be built connecting the cities of Santos and Guarujá

A submerged tunnel to be built connecting the cities of Santos and Guarujá

PPI (Investment Partnership Program) Council recommends qualification of studies for a immersed tunnel between the municipalities of Santos and Guarujá, in the state of Sao Paulo, some 80 km ... More Information

First breakthrough for the Phase 4 of Delhi MRTS

First breakthrough for the Phase 4 of Delhi MRTS

A major milestone in DMRC’s Phase 4 construction work was achieved at the end of December 2021 as the first ever tunnelling stretch of Phase-IV of Delhi MRTS was completed at Krishna Park ... More Information

News from Calgary's Green LRT line

The Green Line LRT is the largest infrastructure project in Calgary’s history, with EUR 3.44 bn (CAD4.9 bn) in unprecedented investments from the Government of Canada (33.47%), Government of ... More Information

TERRATEC secures all machines for Surat Metro Rail Project

TERRATEC secures all machines for Surat Metro Rail Project

TERRATEC delivers another EPB TBM that will be used by Gulermak-Sam India JV for the underground works on Phase I of Surat Metro Rail Project in India thus securing all the machines for Phase 1 of ... More Information

Breakthrough for the Coxwell Bypass Tunnel

On the 27/01/2022 TBM Donnie broke through into shaft NTTPT-1, completing 8,490m of the 10,339m tunnel. The construction works were awarded to the Joint Venture North Tunnel Constructors ULC ... More Information

Winning names for the Eglinton Crosstown West and Scarborough Subway Extension TBMs revealed

After thousands of votes from the community, the winning names are in for the Scarborough Subway Extension’s TBM and the two machines that will build the Eglinton Crosstown West ... More Information

Tunnelbuilder welcomes Sandvik

Tunnelbuilder welcomes Sandvik

Sandvik is a high-tech and global engineering Group with about 37,000 employees with a strong commitment to enhancing customer productivity, profitability and sustainability.  Our operations ... More Information

New dates for WTC 2022

New dates for WTC 2022

The WTC2022 Organizing Committee and the ITA announce that the WTC 2022 in Copenhagen will take place from Friday September 2 to Thursday September 8, 2022, instead of April 22 to 28 at BELLA ... More Information

TBM Breakthrough on Lima metro Line 2

TBM Breakthrough on Lima metro Line 2

On the 21/01/2022 Delia, the first TBM to excavate beneath the city of Lima (Peru) and launched in July 2021, has completed the 720-m tunnel section between San Juan de Dios (E-19) and ... More Information

Mumbai Coastal Road - 1st Breakthrough of TBM Mavala

Mumbai Coastal Road - 1st Breakthrough of TBM Mavala

At the beginning of January 2022 L&T completed the 2072 m long tunnel from Priyadarshini Park to Girgaon Chowpatty/Girgaum Chowpatty/Girgaon Chaupty. It’s the first breakthrough for the ... More Information

Geothermal system from tunnel to power visitor centre

The invitation to tender for construction of electrical and lighting installations, piping, data connection cables, control units, etc. for the visitor centre at the Turin-Lyon construction site in ... 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

Progress report for the Brenner Base Tunnel

As of January 2022, 4 main construction lots are under construction: Mules 2-3, Isarco River Underpass (Italian project area); Sill gorge, Sill gorge - Pfons (Austrian project area).  In ... More Information

Breakthrough for DTSS - Phase 2

Breakthrough for DTSS - Phase 2

On the 15/01/2022 the 2nd TBM, named Yuan Ching, with a 7.56m diameter, broke through at around 60m below ground for the Deep Tunnel Sewerage System Phase 2, Contract T-09. The TBM has completed its ... More Information

TBM for Pawtucket Tunnel Project passes FAT

TBM for Pawtucket Tunnel Project passes FAT

On the 14/01/22 the 10.3m Multi-Mode TBM, built by Herrenknecht for Narragansett Bay Commission's (USA) Pawtucket Tunnel Project, passed its Factory Acceptance Testing. The TBM - commissioned by the ... More Information

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