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iBBT Project

On 12.09.2014 was held the final conference of the three-year Interreg Italy-Austria IBBT project on flooring, lining and innovative lighting for tunnels. The project, co-funded Interreg IV ... More Information

Reno-Alps corridor news

Reno-Alps corridor news

On 18.09.2014 the 4th International Corridor Reno-Alps Conference was held in Genoa, Italy. The Swiss Confederation aims to transfer freight from road to rail through the Lotschberg (opened in ... More Information

Power on the Fehmarnbelt link

Power on the Fehmarnbelt link

The 18 km-long Fehmarnbelt tunnel with its electrified rail operation and a fully lit road tunnel requires the security of an uninterrupted power supply. It will have its own, major substation at ... More Information

Complimentary Robbins Web Seminar on Field Experience

Complimentary Robbins Web Seminar on Field Experience

The latest in the Robbins Webinar series is entitled Lessons Learned from the Field: the Greatest Challenges in TBM Tunnelling. The discussion is scheduled for one hour on Tuesday, 30th September ... More Information

Over 900 items for Caorso auction

Over 900 items for Caorso auction

Ritchie Bros next auction in Caorso, Italy is on Thursday 2nd October, 2014. Over 900 items are currently included in the inventory, and more will be added in the coming weeks. This wide variety of ... More Information

Biel bypass go-ahead

Biel bypass go-ahead

The Federal Council of Berne, capital of Switzerland, has approved construction of the western branch of Biel bypass, including the junction to the right bank of Lake Biel (port tunnel) and ... More Information

Expotunnel for Bologna

Expotunnel for Bologna

ExpoTunnel is dedicated to the world of tunnelling, drilling, mining, underground construction and research. Following a successful first show in 2013, the second edition will take place in Bologna, ... More Information

Australian conference imminent

Australian conference imminent

The 15th triennial Australian Tunnelling Conference takes place in Sydney 17-19th September, with more than 80 technical papers due for presentation. ES Rubber, the manufacturer and international ... More Information

London power tunnels update

Contractors Costain Skanska JV recently completed the 3.4 km-long stretch of tunnel under the River Thames between Wandsworth and Earls Court using TBM Evelyn. This involved the twin challenges of ... More Information

Coguaro4 underground mixer

Coguaro4 underground mixer

An underground concrete machinery open house dedicated to tunnelling machines was held in July at CIFA headquarters in Senago (MI). On the CIFA test field, which was set up for the occasion, ... More Information

Approval for wider Eppenberg

Datec has approved the FFS project for the widening to four tracks of the Olten–Aarau rail section, including the new 3 km-long Eppenberg tunnel. Work starts on the tunnel next spring. Value ... More Information

Opportunities at Qatar Rail

Middle East Rail convention takes place in Dubai 17-18 March, 2015. The CEO of Qatar Rail has given an overview of the 14-year plan for the construction of Qatar Metro’s complex tunnel design ... More Information

Terratec TBM ready for Istanbul

Terratec TBM ready for Istanbul

Terratec has handed over a factory tested, customized 6.56 m-diameter EPB with versatile electric drive cutterhead designed to excavate the mixed geology along the alignment of Istanbul metro in ... More Information

Huge CBE moulds for Wuhan

Huge CBE moulds for Wuhan

French supplier CBE Group will provide 30 segment moulds for a 15.2 m external diameter combined road-subway tunnel in Wuhan, China. Read the press release and visit www.cbe-tunnels.com. CBE ... More Information

Turkey motorway financing

The EUR457 million financing agreement for Phase 2A of the Gebze-Orhangazi-Izmir motorway in Turkey has been signed. This section includes the bi-tube Selcukgazi tunnel, length 1,037 m. Overall, the ... More Information

Transjura A16 section opened

A 9 km-long stretch of A16 motorway between Bure and Porrentruy was inaugurated and opened to traffic on 21.08.2014. The last link of the A16 connecting the canton of Jura with France, this highway ... More Information

Submission deadline extended

The deadline to submit abstracts for the WTC 2015 in Dubrovnik, Croatia from 22 to 28 May 2015 has been extended to September 15th. Visit http://wtc15.com. 36/14. More Information

Schoema at Innotrans

Schoema at Innotrans

German specialist locomotive and rolling stock manufacturer Schoema will be presenting new technology at Innotrans 2014 in Berlin, September 23-26th. Don’t miss their exhibition stand, and ... More Information

BTS conference registration

BTS 2014 takes place at the QE 2 Centre in London on 23-24th September. Free online registration is available. Accompanied by “a very well attended exhibition, with many key people from the UK and international tunnelling sectors”. 33/14. More Information

TBM renaissance in Norway

TBM renaissance in Norway

A Robbins 7.2 m-diameter main beam TBM is at work on the Rossaga hydro project in Norway, the first Norwegian tunnel to be mechanically bored in 22 years. Watch the six-minute video and visit ... More Information

Terratec double in Delhi

Terratec double in Delhi

The first two of a scheduled 18 breakthroughs of Terratec TBMs have been accomplished on the CC-07 and CC-24 projects at New Delhi Metro Phase-III. Read the press release and visit ... More Information

Putzmeister at Expomina, Peru

Expomina 2014 takes place in Lima, Peru on 10-12th September. Putzmeister will be there on Stand E01 showing its 5 cu m capacity Mixkret 5 mixer/carrier designed for underground applications. Read ... More Information

City Rail Link update

City Rail Link update

New Zealand’s City Rail Link (CRL) will be built in two 3.4 km-long, twin tunnels up to 42 m below the city centre of Auckland. It will extend the existing rail line underground through ... More Information

Palermo railway ring

Palermo railway ring

On 23.07.2014 Tecnis SpA (Catania) began work on Lot 1 of the railway ring in Palermo. Value of the project is EUR152 million, with EUR28 million coming from EU funds. The Giachery-Politeama section ... More Information

Palermo-Messina progress

On 17.07.2014 breakout was achieved at the Palermo end of the 4,127 m-long Monte Poggio Maria tunnel, part of the dualling of the 19.7 km Fiumetorto-Cefalu Ogliastrillo section on the ... More Information

Power your business with tunnelbuilder

As the good times start to roll again in the US and Europe, tunnelbuilder readership is growing rapidly, currently averaging 71,493 visits/month for 2014. Our weekly newsletter garners 10,666 ... More Information

Atkins to lead Doha metro

UK-based design, engineering and consulting firm WS Atkins has been awarded the EUR100 million contract as lead designer for Doha metro Gold Line in Qatar. Visit ... More Information

Top award for Lok Home of Robbins

Once a year, the Underground Construction Association honours a person who has made major contributions to the tunnelling industry throughout their career. Lok Home is the exceptionally deserving ... More Information

Merano northwest bypass

Merano northwest bypass

On 22.07.2014 Bozen Province in Italy approved the definitive alignment of Merano northwest bypass – Lot 2. Tender is expected in 2016, start of work in 2017. Lot 2 will be mainly underground ... More Information

Rishikesh-Karanprayag railway

RNVL is implementing the 125.09 km-long rail project in the Garhwal region in Uttarakhand with a preliminary cost of EUR530 million. The rail project passes through Dehradun, Tehri, Pauri and ... More Information

Breakthrough at the Kargi HEPP

A Robbins double shield TBM broke through on 05.07.2014 in Turkey at the Kargi HEPP. The machine made it through fault zones and squeezing ground, ultimately excavating over 700 m/month. Click ... More Information

First Northgate Link TBM launches

The first of two TBMs that will dig new twin light rail tunnels from the Northgate neighbourhood in Seattle to the University of Washington began mining on 09.07.2014.  The TBM will mine ... More Information

Basel east ring road, new variant

Basel east ring road, new variant

The Federal Roads Office has drawn up, and discussed with the cantons, a new variant involving the construction of a tunnel under the Rhine between Birsfelden and the North Ring Road branch Wiese to ... More Information

WTC2015 – Deadline Abstracts

WTC 2015 will take place on May 22-28, 2015 at Lacroma Valamar Congress Center, Dubrovnik, Croatia. Deadline for abstract submission: July 31, 2014. Visit http://wtc15.com/forms/call-for-papers. ... More Information

Terratec micro impresses

Terratec micro impresses

A Terratec MTBM working in Bangkok, Thailand has completed a 380 m-long drive of 1.8 m-ID pipejacked tunnel in just 23 days. Key to this successful operation was the high performance of the ... More Information

Australasian conference papers

The 15th Australasian Tunnelling Conference entitled “Underground Space – Solutions for the Future” takes place in Sydney on 17-19th September, 2014. Click here for online ... 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