Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

Bertha exits the access pit

Bertha, the SR 99 TBM, is now tunneling in Seattle soil after breaking through the access pit wall on the 06.01.2016. Seattle Tunnel Partners has mined more than 22 m and installed 12 concrete ... More Information

Angren-Pop Railway Line

Uzbekiston Temir Yullari the Uzbekistan Railway Company, will shortly open their new123.1 km  electrified railway line between Agren in the Tashkent region and Pap in the Namangan region. ... More Information

ITA COSUF - Press Release

ITA COSUF - Press Release

4th European Forum of Road Tunnel Safety Officers - High Quality Meeting of Specialists in Rotterdam (The Netherlands) from 9th to 10th March 2016. There is a great demand of high quality knowledge ... More Information

Terratec TBM breaks through in Istanbul metro

Terratec TBM breaks through in Istanbul metro

Terratec is pleased to announce that its EPB TBM designated as S42 holed through on Friday, the 4th of December 2015 in Istanbul after completing the first half of its proposed run from Yenimahalle ... More Information

Terratec delivers two new micro-tunnelling systems

Terratec delivers two new micro-tunnelling systems

On 15th December 2015 TERRATEC successfully completed the Factory Acceptance Tests of two new Micro-tunnelling Systems in its facilities in Thailand for the MRTA Green Line (North) ... More Information

La Quercia-Aglio section Highway A1 now open

On  the 23.12.2015 the Sparvo tunnel had its opening ceremony. It is part of the 32km La Quercia - Aglio section of the Apennine Road Bypass to Highway A1. In this section motorists will be ... More Information

Belchen renovation tunnel – TBM will be launched next February

Belchen renovation tunnel – TBM will be launched next February

The cutter head for the front of the Herrenknecht single shield TBM was fitted on 11th November 2015. The TBM which is 13.97 m in diameter, 2000 ton in weight and has a length of 75 m will start ... More Information

WTC 2016 – Technical papers

The 2016 World Tunnel Congress will be held on 22-28  April 2016 in San Francisco, California. With as many as 600 unique technical presentations, short courses and breakout sessions visitors ... More Information

geoSURE from Sandvik turns drill rig into analyzer

geoSURE from Sandvik turns drill rig into analyzer

Sandvik Construction is adding a revolutionary rig-integrated, high precision, online rock mass analysis and visualization system to its existing offering for tunneling process optimization – ... More Information

Røssåga Main Beam sets Norwegian Milestone

Røssåga Main Beam sets Norwegian Milestone

Robbins Machine is the first TBM to break through in Two Decades. A crowd of crew members gathered to celebrate in front of a newly emerged hard rock TBM on December 10, 2015 in northern Norway, ... More Information

Midtown Tunnel - Two construction milestones achieved

In December the Midtown Tunnel’s tide gate was installed to protect the new tunnel from severe weather impacts, and the final bulkhead was removed between the Norfolk approach and Element ... More Information

A Historic Moment for TBM in Norway!

A Historic Moment for TBM in Norway!

The first Norwegian TBM to break through in over 20 years happened on December 10, 2015 at the Rossaga Hydroelectric Project. The TBM, nicknamed "Iron-Erna", is the first TBM used in Norway since ... More Information

ES Rubber - Tunnel Metro Guadalajara Line 3

ES Rubber - Tunnel Metro Guadalajara Line 3

In the Mexican state of Jalisco, the 5.5 km central section of the Guadalajara metro’s new Line 3, between La Normal and Plaza de la Bandera stations, will be driven by a TBM EPB for almost 4 ... More Information

Metro Guadalajara Line 3

In 2014 the Mexican Ministry of Communication and Transportation (SCT- Secretaría de Telecomunicaciones y Transportes) awarded Sener the Guadalajara metro’s new Line 3 project. Sener ... More Information

Sections of the SR 99 tunnel built without Bertha

Approximately 20 percent of the SR 99 tunnel was designed to be built without Bertha, the SR 99 TBM. Seattle Tunnel Partners had bored more than 305 m of tunnel before they stopped to repair Bertha. ... More Information

Normet new tunnel equipment launch

Normet new tunnel equipment launch

Normet has launched its new M and L-Series underground mining and tunnelling equipment offering with the European Stage IV/U.S. EPA Tier 4 Final power train technology (“Tier 4F”) based ... More Information

WTC 2016

The 2016 World Tunnel Congress will be held on April 22-28, 2016 in San Francisco. WTC returns to the United States for the first time in 19 years. Exhibitors can register using the registration ... More Information

Hallandsas tunnels officially open

Hallandsas tunnels officially open

The railway tunnels through Hallandsas, in southwestern Sweden, were officially opened on 08.12.2015. The tunnels are the country’s most important railway infrastructure project in 40 years. ... More Information

Breakthrough of the Shatin to Central Link Hin Keng to Kai Tak Tunnel

Breakthrough of the Shatin to Central Link Hin Keng to Kai Tak Tunnel

On the 11.11.2015 the final blast underneath Lion Rock, finished the 2.4 km  tunnel stretch from Hin Keng to Kai Tak for the Shatin to Central Link (SCL) Project. 60% of the tunnel excavation ... More Information

Six offers for Lot Mules 2-3 of the Brenner Base Tunnel

BBT received tenders from the following 6 groups for the construction of Brenner Base Tunnel, Lot Mules 2-3: Astaldi SpA, Ghella SpA, Oberosler Cav Pietro SpA, Cogeis SpA, PAC SpA; ... More Information

Customers at forefront of drill rig remote screen development

Customers at forefront of drill rig remote screen development

In 2014 Sandvik introduced a completely new radio remote controlled drill rig to its surface top hammer drill rig offering, the Dino DC400Ri. The concept of this new drill rig drew extensively on ... More Information

Watch Robbins latest video!

Watch Robbins latest video!

See Robbins TBMs in a New Light - From Onsite Assembly to the first Breakthrough, watch EPB Tunneling at North Link Evolve.  Watch Robbins latest video which documents the Onsite First Time ... More Information

ITA Tunnelling Awards 2015

On the 19th November 2015, 24 projects and their representatives, along with 8 engineers, 5 engineering companies and 5 contractors who were all candidates for this years ITA Tunnelling Awards in ... More Information

A.S.T. Bochum on tunnelbuilder!

A.S.T. Bochum on tunnelbuilder!

Tunnelbuilder is pleased to announce that A.S.T. Bochum of Germany has become a new advertiser on our website. A.S.T. Bochum is your specialised supplier for all Tunnelling, Microtunnelling as ... More Information

Mühlhäuser enters Tunnel Boring Machine Business

 Mühlhäuser enters Tunnel Boring Machine Business

Zürich / Lyon, 13.11.2015: NFM Technologies and MÜHLHÄUSER have signed an exclusive agreement whereby Mühlhäuser will represent NFM Tunnel Boring Machines (TBMs) with ... More Information

South Tyrol – Castelbello/Colsano ring road

The detailed design of the Castelbello and Colsano ring road has been approved for the SS 38 in Stelvio. The tender is about the construction phase and will be reviewed in 2017, the value will be ... More Information

Updates on Wendlingen - Ulm line

Updates on Wendlingen - Ulm line

Wendlingen-Ulm Line Steinbuehl Tunnel On 06.11.2015 at the Todsburg portal the breakthrough took place of the 4847 m long Steinbuehl tunnel. This was originally expected in the spring of 2016 ... More Information

ES Rubber gaskets used for Koralm tunnel

 ES Rubber gaskets used for Koralm tunnel

As part of the Koralm tunnel (lot KAT 3) two tunnels, which are 5.9 km long and with a 9.5 m external diameter, will be driven by a bi-modal TBM and will be lined with about 45,000 segments ... More Information

Melbourne Metro Rail Project

Melbourne Metro Rail Project

On 19.11.2015 the government announced the EUR6.08-7.43 billion (AUD9-11 billion) Melbourne Metro project in Australia can be procured as an availability based Public Private Partnership (PPP) ... More Information

Shieldhall tunnel

Shieldhall tunnel

Scottish Water reached a key milestone in the construction of the Shieldhall Tunnel in Glasgow. Bachy Soletanche, the UK company contracted last June by the JV VINCI Construction Grands Projets and ... More Information

Underground Construction Prague 2016 - Registration

The on-line registration has now opened the for the 2016 Underground Construction conference that will be held in Prague from 23.05.2016 to 25.05.2016. To register please visit the website ... More Information

Breakthrough of Line 3 of Riyadh's Metro

A ceremony was held for the breakthrough of  Line 3 of Riyadh's Metro, it is the longest part of the network at 40.7 km. The line runs from the west near the Jeddah Expressway and ends in the ... More Information

New record set by SELI on the Doha Metro Gold Line

New record set by SELI on the Doha Metro Gold Line

On 08.11.2015 Seli Overseas broke through at Al Wabb Station on the Doha Metro Gold Line and set a new production record for the line with 625 m excavated in one month. Seli Overseas subcontract ... More Information

STUVA-Expo 2015

STUVA-Expo 2015

STUVA-Expo 2015 - these 164 exhibitors are prepared for your visit! 3D Mapping Solutions GmbH, A.S.T. Bochum GmbH, AB Alvenius Industrier, ACO Tiefbau Vertrieb GmbH, ADCOS NV, Adolf Würth GmbH ... More Information

Metro Line 1 at Turin

A TBM, built in Germany by Herrenknecht, will be assembled and lowered in the metro station ready to dig and build a tunnel under Nizza Street, first towards Moncalieri and then towards Lingotto for ... More Information

Third light rail tunnel segment for Northgate Link extension completed

On 06/11/2015 the TBM Brenda reached the future station of the extension of the U District Northgate Link to Seattle, completing the third segment of the twin 3.5-mile tunnels being mined by JCM ... More Information

Tunnelling News

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

Potomac River Tunnel: Tunnel Forum Meeting

The Potomac River Tunnel project team will provide overviews of the project and the Combined Sewer Overflow (CSO) 022 Construction Site located at ... More Information

Valley Water District to vote on an additional $9.69 million for Delta Tunnel

Tunnel Boring Machines would launch in both directions from each launch shaft site. ... Tunnel opponents weren't impressed with the 'refined' tunnel ... More Information

The Moles Present 2025 Outstanding Achievement Awards

Paul C. Schmall and Anthony J. Binsfeld received the Outstanding Achievement Awards by The Moles, a National Heavy Construction Industry Professional ... More Information

Silvertown Tunnel opening confirmed for April

The tunnel boring machine (TBM), Jill (named after Jill Viner ... bore the second tunnel back towards Newham - a UK engineering first. More Information