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Purple Line Extension in Los Angeles

Purple Line Extension in Los Angeles

The Purple Line Extension Transit Project will be welcoming the last two TBMs which will join the Section 1 TBMs Elsie and Soyeon and the Section 2 TBMs Harriet and Ruth in Los Angeles. The ... More Information

Stockholm Metro update

Stockholm Metro update

Stockholm Metro to Alvsjo - Planning for the Metro between Fridhmsplan and Alvsjo, via Liljeholmen, has begun this year after an agreement was reached between the Municipality of Stockholm and ... More Information

The ITA tunnelling awards 2020 - Call for entries

The 6th edition of the ITA Tunnelling Awards will take place at the end of the year (exact place and date will be confirmed soon). For this edition, some changes are proposed in the categories with ... More Information

Normet Technologies for Sprayed Concrete Animation

Normet Technologies for Sprayed Concrete Animation

Normet Oy brings you an animation to show how to optimise the cost and quality of sprayed concrete, showing its delicate combination of different factors. See how Normet can help you improve your ... More Information

The GuardIAN Intelligence Network from MineArc

The GuardIAN Intelligence Network from MineArc

What is a GuardIAN? It is a protector. A defender. A guide. In response to industry requirements, the GuardIAN Intelligence Network has been designed to improve personnel safety, increase ... More Information

Liafjell- Olvikvatnet finished next year

Liafjell- Olvikvatnet finished next year

The Nordland County Council Bent-Joacim Bentzen assured the Liafjell - Olvikvatnet project will be completed  for autumn 2021. Construction of the new 5.5km-long stretch of the Liafjellet - ... More Information

Construction on Moscow Subways to continue

Construction on Moscow Subways to continue

Despite the set of measures to prevent the spread of coronavirus, the pace and scope of work on the construction of the Moscow's subway will not decrease. Today, active tunnelling in Moscow involves ... More Information

Press release - Forrestfield Airport Link project update

In late July 2017, TBM Grace set off from Forrestfield to Bayswater, building the tunnel that will house the Forrestfield-bound trains. On February 18 tunnel boring machine (TBM) Grace arrived at ... More Information

4 tunnelling shows postponed

NASTT’s No-Dig Show - Postponed Due to the COVID-19 response situation going on throughout the United States and Canada, the 2020 NASTT’s No-Dig Show, originally scheduled for April 5-9 ... More Information

Tunnelbuilder turns 21!

Tunnelbuilder turns 21!

Today Tunnelbuilder celebrated 21 years of providing the tunnelling community with up to date, daily information on tenders, awards and news from throughout the world. 21 years ago tunnelling ... More Information

City Rail Link tunnels - Names Shortlisted for TBM

Georgina, Margaret and Whina: these are the 3 possible names of the TBMs that will burrow under Auckland to complete the dig of the City Rail Link tunnels. The names were shortlisted from thousands ... More Information

Government decides to re-tender the remainder of the Zuidasdok project

The administrative principals (the Ministery of Infrastructure & Water Management and the municipality of Amsterdam) have decided on a different approach for the further implementation of the ... More Information

A message from MineArc

A message from MineArc

Friends of MineARC - Health and safety is what we do. Each day, over 50,000 people around the world rely on us and our products to keep them safe.  We don’t take this responsibility ... More Information

TERRATEC marks major milestone in Bangkok

TERRATEC marks major milestone in Bangkok

TERRATEC marks its latest milestone on the Orange Line metro project, in Bangkok, Thailand, with the breakthrough of the Westbound running tunnel on Contract E3 .   Recently, TERRATEC joined ... More Information

Save-the-Date: 2020 Breakthroughs in Tunnelling Short Course

The Breakthroughs in Tunnelling Short Course, the longest-running and most-attended course of its kind, marks its 13th year in 2020. The 2020 course returns to the University of Denver in Denver, ... More Information

Blog - On the Move: Robbins TBMs Around the World

Blog - On the Move: Robbins TBMs Around the World

At any given time Robbins TBMs are operating in dozens of countries around the world at all project stages. Thus far, 2020 has been no exception to the rule: From an icy visit to the world’s ... More Information

New dates for SaMoTer

New dates for the trade fairs SaMoTer and Asphaltica that are to be held in Verona Italy have been announced. The two shows are being held at Veronafiere are for the construction equipment and the ... More Information

WTC 2021 - Call for Abstracts

WTC 2021 - Call for Abstracts

The World Tunnel Conference 2021 and associated events will be held between the 14th and 20th of May 2021 at the Bella Congress Center Copenhagen. Denmark and Scandinavia will present some of the ... More Information

History made as metro tunnelling complete under Sydney Harbour

New twin metro railway tunnels deep under Sydney Harbour are complete in a historic milestone – with all tunnelling now finished on the Sydney Metro City & Southwest project. Mega boring ... More Information

A3 Kerenzerberg tunnel update

A3 Kerenzerberg tunnel update

The A3 motorway section at the Kerenzerberg tunnel in the direction of Sargans has been in operation for over 30 years. In order to ensure road safety for the coming years and long-term operation, ... More Information

RFQs Issued for Tunnelling Works on Scarborough Subway Extension and Eglinton Crosstown West Extension

Infrastructure Ontario (IO) and Metrolinx have issued two Requests for Qualifications (RFQs) for advance tunnelling work on the Scarborough Subway Extension and the Eglinton Crosstown West Extension ... More Information

Update - Kommunarskaya Line in Moscow

On the 16/03/2020 construction of the tunnel between the Mamyri and Slavic World stations began for the new Kommunarskaya metro line. Mosinzhproekt JSC is the general designer and general contractor ... More Information

Robbins webinar

If you missed the Robbins webinar, No need to worry, you can watch an on-demand recording of their event on Big Data: Technology for Efficient TBM Tunneling please click here for further ... More Information

MineArc - Custom Refuge Chamber Strengthens Safety on Small TBM

Designing a refuge chamber to fit a 4.4m diameter tunnel boring machine with limited gantry space. Learn about the custom engineering that went into building two 10-person, 24-hour TunnelSAFE refuge ... More Information

Moscow - Western Section, Big Circle Line (BCL) launches TBMs

Moscow - Western Section, Big Circle Line (BCL) launches TBMs

On 25/02/2020  two TBMs (10 m diameter)  were simultaneously launched on the western part of the Big Circle Line (BCL) in Moscow. The TBMs will be driving two double track tunnels, TBM ... More Information

First TBM reaches De Amicis Station in Milan

On the 04/03/2020 the first TBM, involved in the construction of the tunnel for the central section of the M4 line in Milan arrived at the De Amicis station. The TBM averaged 25m/day and has now ... More Information

Events postponed

The following events have been postponed -  1. The Fehmarn Link Business Conference, which should have been held at Lalandia in Rodbyhavn on March 12, has been postponed to a later date. ... More Information

LA Regional Connector Transit Project Updates

LA Regional Connector Transit Project Updates

When the Regional Connector project is completed, three Metro light rail lines — the A (Blue), E (Expo) and L (Gold) — will finally be joined together via two 1.9-mile twin tunnels ... More Information

Robbins Main Beam overcomes Obstacles in Guangxi Province

Robbins Main Beam overcomes Obstacles in Guangxi Province

Tough TBM breaks through after navigating Faults, Karst, and More - In January 2020, a Robbins 5.97 m (19.6 ft) diameter Main Beam TBM cleared its final hurdle when it broke through in Guangxi ... More Information

City Rail Link project - Tunnelling starts in 2021

The TBM for the City Rail Link project awarded to Link Alliance, a group of 7 companies ,  is due to arrive in Auckland next spring. It will bore twin tunnels under the city centre. The $13 ... More Information

TERRATEC EPBMs gear up for new Istanbul Metro line

TERRATEC EPBMs gear up for new Istanbul Metro line

Gulermak, Nurol & Makyol JV is currently completing TBM testing on-site for the new Ümraniye-Ataşehir-Göztepe line, the latest addition to Istanbul’s metro ... More Information

Breakthrough on Halkali-Istanbul Airport Metro Line

On the 29/02/2020 the TBM EPB S50 built by Terratec broke through at Arnavutkoy-1 station after excavating 1551 metres. The work is part of the new Halkali-Istanbul Airport Metro Line. The 31km-long ... More Information

Samoter 2020 Postponed until May

SaMoTer, the international construction equipment trade fair, scheduled for the  21-25 March will now be held between the 16-20 May 2020. Asphaltica, the road infrastructure event to be held ... More Information

WTC 2020 Malaysia date change

Due to the spreading Corona Virus in Asia-Pacific and  also in Europe, the organisers of the WTC 2020 in Malaysia have decided to change  the date of the  Congress as well as any and ... More Information

Australia - Farewell our mega borer friends

Australia - Farewell our mega borer friends

Press release - Four giant boring machines are leaving Sydney after finishing tunnelling under the city, delivering 30km of twin metro railway tunnels. Their massive cutterheads, each weighing 100 ... More Information

Finland to seek EU funding

The state of Finland will apply for funding from the European Commission for the planning process of the One-hour Turku-Helsinki Rail Link, of the Finland Railway, of the Espoo city rail link, to ... More Information

Tunnelling News

Čučković: Construction of the tunnel boring machine for the Belgrade Metro in final phase

It is a good thing that we, for example, acquired these tunnel boring machines at a lower price than other countries... More Information

Serbia plans to borrow 2.5 billion EUR in 2026 for the construction of the Belgrade metro

It is also stated that two TBMs (tunnel boring machines), the so-called moles, have already been ordered and are expected to be delivered to ... More Information

VSM starts operation at Tilbury

The pioneering Vertical Shaft Sinking Machine (VSM) from Herrenknecht, named “Verena”, after Verena Holmes, a pioneering British mechanical ... More Information

Metrolinx reveals names of Ontario Line tunnel boring machines

Following a contest, Metrolinx has officially named its two massive tunnel boring machines Libby and Corkie... More Information

Montreal blue line metro tunnel boring machine has arrived, time to dig

It's basically building the backbone of the blue line extension,” said project chief Maha Clour, pointing out that crews have reached the bottom of ... More Information

Norway Unveils The World's Longest Road Tunnel In A Majestic Engineering Marvel

The construction cost broke down to about 38,000 NOK (roughly £3,500) per meter, an impressive figure considering the complexity and scale of the ... More Information

Sydney Metro West construction captured on video ahead of 2032 opening

Two giant tunnel boring machines have made their way through the deepest section of Darling Harbour as part of works on the new Metro West. More Information

Bengaluru's ₹18,000-crore tunnel road project inches closer as four major firms submit bids

Four firms bid for Bengaluru's ₹18000 crore tunnel project linking Hebbal to Silk Board, expected to ease city traffic by 2029 under a 34-year ... More Information

Webuild advances Rocchetta Tunnel excavation

Upcoming construction milestones. Webuild is preparing for the next major phase on the Apice–Hirpinia section: the launch of the reinforced concrete ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Kathmandu-Tarai Expressway achieves 43.3% progress

The total length of the seven tunnels under the project is 10.979 km. ... Construction progress for the Chandram Bhir tunnel. (2,250 metres) has ... More Information

MMRDA plans 70-km underground tunnel road network across Mumbai

The project, being prepared in phases, will enhance multi-level connectivity and ease commuting. By KAILASH BABAR · Google preferences in ET Follow us ... More Information

Hong Kong: Robotics And AI Enhance Tunnel Construction

It is leveraging artificial intelligence (AI), robotics and automation to advance the Trunk Road T2 and Cha Kwo Ling Tunnel project. These ... More Information

Single-Bore Tunnel Method Chosen for BART Silicon Valley Phase II

This decision allows VTA to advance project design towards 60%, stay on a critical path to tunnel construction and meet the projected revenue service ... More Information

Boring Co. begins 'controlled blasting' for Nashville tunnel at TN capitol

The Boring Co. has started excavation work at a state-owned parking lot on Rose Parks Boulevard for the Music City Loop project Wednesday, Aug. 13, ... More Information

TBM arrives in Montreal for delayed metro extension project

A custom-built tunnel boring machine (TBM) has arrived in Canada for use on a 6km extension of the Montreal Metro... More Information

Spain Confirms Feasibility of €8.5 Billion Morocco-Europe Tunnel

The study was conducted by German company Herrenknecht, the world leader in tunnel boring machines, at the request of the Spanish government's ... More Information

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

The first tunnel boring machine will be deployed near ... Industry experts say tunnel boring machines typically advance about 50 feet per day. More Information

6 TBMs on Duty on the 27-Kilometer Line in Körfezray

Two of the six Tunnel Boring Machines (TBMs) that will serve in the first 27-kilometer phase are actively excavating tunnels, while the ... More Information

Construction on HS2's Euston tunnel will start 'fairly soon', says rail minister

Construction on the HS2 tunnel from Old Oak Common station to Euston station will start “fairly soon”, the rail minister has said... More Information

Blue Line Extension TBM Arrives at Port of Montreal

Railway Track and Structures Construction site of the future Vertières station (Pie-IX) in June 2025. Caption and photo courtesy of STM. MONTREAL - The tunnel boring machine (TBM) ... More Information

Tunnel break through milestone for Mt Messenger Bypass project

A 110 tonne excavating machine, called Hinetūparimaunga, has broken through at the northern end of the project's 235 metre-long tunnel ... More Information

$3.9 billion tunnel and bridge link for VA

Costing around $3.9 billion, the Hampton Roads Bridge-Tunnel (HRBT) upgrade Expansion project for Virginia will improve traffic flow for a key ... More Information

Extended North Tunnel Flood Mitigation Project Receives $18.2 Million in State Funding

The funding advanced by the board includes a $17.2 million loan and $1 million grant for the construction of the mile-long tunnel, which will divert ... More Information

Gateway Project faces new uncertainty amid government shutdown

Federal funding for the $16B Hudson Tunnel Project, aka Gateway, has been paused during the government shutdown, sparking political backlash. More Information

Tunnel Boring Machine Emily Passes Key Factory Test for DC Water Potomac River Tunnel Project

Tunnel boring machine (TBM), Emily. This test confirms that Emily is ready to begin excavating the southern leg of the Potomac River Tunnel — a ... More Information

Sydney Metro West achieves world-first in tunnelling technology

Sydney Metro West has achieved a world-first in tunnel construction with a Lining Erector Machine (LEM) successfully being used to line the mined ... More Information

Gateway construction continues despite Trump's claim of termination

Tutor Perini, the general contractor on the Manhattan Tunnel Project, confirmed construction activity is currently continuing as planned... More Information

Tunnelling complete for Annacis water supply project

Metro Vancouver has completed the tunnelling phase of the $450 million Annacis Water Supply Tunnel, which will complete in 2028... More Information

Santa Clara VTA confirms single tunnel plan for BART extension

With VTA now owning the tunnel boring machine, the agency assumes full responsibility for its performance, agency officials said. To manage the risk, ... More Information

Chennai: Tunnel Boring Machine Vaigai achieves breakthrough at Mandaveli Metro Station

CHENNAI: The Chennai Metro Rail Limited (CMRL) on Saturday achieved a major milestone in Phase II tunnelling works, as Tunnel Boring Machine (TBM) ... More Information

Trump 'terminates' $16 billion Hudson River tunnel project linking N.J. and N.Y.C.

President Trump said funding for the $16 billion Gateway Tunnel project is "terminated" at a press conference. New Jersey officials said they will ... More Information

$676 million underwater tunnel for India

The project is expected to cost around $676 million, with a Detailed Project Report (DPR) having now been completed. India's road transport network is ... More Information

€1.4 billion Belgian tunnel project approved

The first phase of the €1.4 billion project for Belgium’s new Limburg Noord-Zuid link has been approved. Construction should commence in 2027 on the project, which will form a section of ... More Information

Tunnel boring machine S-639B achieves breakthrough under Kanpur Metro Phase I Project

The package KNPCC-06 involves design and construction of a tunnel through TBM, cut and cover tunnel, underground ramp from Kanpur Central end of ... More Information

Lawmakers propose construction of undersea tunnel to link Luzon and Visayas

Several lawmakers from the Visayas region are proposing the construction of an underground tunnel that will serve as a permanent land connection ... More Information

Oman-UAE rail project hits major milestone with start of tunnel excavation

Tunnel excavation has begun in Oman's Al Hajar Mountains, marking a major milestone for the cross-border Oman-UAE Railway... More Information

Engineering the depths: innovative tunnelling for hydropower projects

Major schemes in Austria, China, and Germany are applying advanced underground construction techniques for hydropower projects. More Information

New tunnel, new standard: Silvertown project showcases innovation in surface protection

Originally approved in 2018, construction of the tunnel began in March 2021. In September 2023, following the completion of tunnelling works, ... More Information