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New breakthrough in Gotthard base tunnel in Switzerland

New breakthrough in Gotthard base tunnel in SwitzerlandThe TBM Gabi I started driving southwards from Erstfeld on December 4, 2007 and eighteen months later, and half a year earlier than planned, it ... More Information

Work begins on largest US mass transit project

Work begins on largest US mass transit project Work is scheduled to begin this month on the Mass Transit Tunnel to link New Jersey with New York. The DoT has committed $3 billion to the project over ... More Information

Metroul/Systra consortium awarded Romania Metro

Metroul/Systra consortium awarded Romania MetroThe EUR9.6 million construction supervision contract for Line 5 of Bucharest metro has been awarded to the Metroul/Systra consortium. Read ... More Information

World's longest tunnel page

World's longest tunnel pageOur old friends Gunnar Lotsberg and Eugenio Merzagora have been revising and updating WLTP, our companion website, and seem to have finally nailed every operating tunnel ... More Information

New Atlas Copco long hole rock drills

New Atlas Copco long hole rock drillsAtlas Copco has launched two new versions of its well-proven COP 1838 hydraulic rock drill for underground long hole drilling applications. Read more. More Information

Austria and Italy agree Brenner tunnel construction

Austria and Italy agree Brenner tunnel construction Last week, in Rome, the transport ministers of Austria and Italy signed a definitive agreement on the construction of the 56 km-long Brenner rail ... More Information

Surplus 6.44 m-diameter TBM for sale

Surplus 6.44 m-diameter TBM for saleA 2005 vintage MHI 6.44 m-diameter EPB that has tunnelled less than 3.2 km is available in the US for immediate sale, together with trailing gear and most ... More Information

Villa Vomano-Teramo section of A24 commissioned

Villa Vomano-Teramo section of A24 commissionedThe dualling of the Villa Vomano-Teramo section of Italy's A24 Tirrano-Adriatic highway, together with the 826 m-long Carestia tunnel, was completed on ... More Information

Austria reports progress

Austria reports progressOn 24.04.2009, the 13 m-diameter TBM completed the 3,470 m rock section of the twin-track of the 4.48 km-long Jenbach tunnel (lot H8) on Unterinntalbahn. Visit tunnelbuilder ... More Information

Success assured at RETC in Las Vegas

Success assured at RETC in Las VegasMore than 100 exhibitors are listed for the upcoming RETC conference taking place at Caesars Palace in Las Vegas from 14-17th June, 2009. Included are numerous ... More Information

Lovat sells five TBMs to Sochi

Lovat sells five TBMs to SochiCanadian manufacturer Lovat is supplying five TBMs to the Sochi project on Russia's Black Sea coast to mine three service tunnels and two railway tunnels for use during ... More Information

World first - Herrenknecht EPB drives from Europe to Asia

World first - Herrenknecht EPB drives from Europe to AsiaGerman manufacturer Herrenknecht has reported the successful breakthrough of its 6.11 m-diameter EPB on the new 3.4 km-long Melen 7 water ... More Information

Recession recovery with tunnelbuilder.com!

Recession recovery with tunnelbuilder.com!Going daily at tunnelbuilder.com has already increased our readership by 6% year on year, with an average of 921 professional tunnelling engineers now ... More Information

Gautrain tunnels nearly complete

Gautrain tunnels nearly complete Gautrain has reported that more than 90% of the 15 km tunnel along the 80 km link between Tshwane and the OR Tambo International Airport has been completed. The ... More Information

Indian deal for NFM Technologies

Indian deal for NFM TechnologiesNFM Technologies has signed a Memorandum of Agreement with Indian company BEML to seal an exclusive strategic partnership with a view to becoming a principal supplier ... More Information

NFM Technologies EPBs for Beijing metro

NFM Technologies EPBs for Beijing metroDuring July and August this year NFM Technologies will supply China Railway Construction (B12) with two 6.28 m-diameter EPBs for line 10 of the Beijing metro. ... More Information

Robbins single shield TBM for Laos headrace

Robbins single shield TBM for Laos headraceItalian company CMC (Ravenna) will use a Robbins Single Shield TBM to construct the 5.5 km-long headrace tunnel for the Theun Hinboun expansion project on ... More Information

Recovery lessons (3)

Recovery lessons (3)Today, 28.04.2009, we are publishing the first tunnelling bid that has resulted directly from the measures announced by various governments to bring forward infrastructure ... More Information

Recovery lessons (2)

Recovery lessons (2)Improving road and tunnel safety in Italy The White Paper on transport policy in Italy requires a halving of road victims by 2010, as a result of which the automobile club ACI ... More Information

Work resumes on Cesana tunnel

Work resumes on Cesana tunnelItalian road agency ANAS has approved the technical variations needed to resume work at the 1,840 m-long Cesana tunnel on the SS 24 at Monginevro, in Turin province. ... More Information

Robit Rocktools at Intermat

Robit Rocktools at IntermatFinnish rock and ground tool supplier Robit is exhibiting the first models in its new NS casing advance system at this week's Intermat exhibition in Paris. NS stands for ... More Information

New factory and new products for Ilmeg

New factory and new products for IlmegIlmeg Products AB, the Swedish manufacturer of dust control systems for the rock excavation industry, has built a new factory to produce the newly developed ... More Information

Ritchie Bros. Auctioneers to sell hard rock TBM in unreserved Los Angeles auction

Ritchie Bros. Auctioneers to sell hard rock TBM in unreserved Los Angeles auctionRitchie Bros. Auctioneers, the world's largest industrial auctioneer, is selling a single shield 450 ft-long, hard ... More Information

Recovery lessons (1)

Recovery lessons (1)Colombia to host technical seminar on tunnels The Colombian Government has approved the financing of more than 70 km of new tunnels, closing gaps in the national highway network ... More Information

IPS and Albert Lederer join forces

IPS and Albert Lederer join forcesIPS has signed a cooperation agreement for tunnelling activities with Albert Lederer of EF Consult Asia PTE Ltd to bring closer together two professional companies ... More Information

Innovative tunnelling solutions from Design & Technic in Singapore

Innovative tunnelling solutions from Design & Technic in SingaporeDesign & Technic is an independent engineering, consulting and marketing partner based in Singapore. Partners include ... More Information

Rutherford for temporary electrical equipment and cables

Rutherford for temporary electrical equipment and cablesBased in New South Wales, Australia, and with strategically located companies in Italy and Singapore, Rutherford Power is well placed to ... More Information

Seville metro operational

Seville metro operational Line 1 of Seville metro opened on 02.04.2009 with 17 of 22 stations operating, from Ciudad Expo in Mairena del Aljarafe to Condequinto station at Dos Hermanas. For ... More Information

Breakthrough in New Zealand

Breakthrough in New ZealandMcConnell Dowell & Fletcher Construction JV has reported early completion of the 2,953 m-long TBM drive for the Orakei Main Sewer Hobson Diversion (OMSHD), some 17 ... More Information

VMT expands in Australia

VMT expands in AustraliaDuring the last two years, Australia has grown into one of the key markets for VMT GmbH worldwide. Huge infrastructure projects, such as the North-South Bypass Tunnel or the ... More Information

New hydro project for Bosnia Herzegovina

New hydro project for Bosnia HerzegovinaDMT, a provider of technology services based in Essen, Germany is contributing to the feasibility study for a new hydroelectric plant near Vrelo in Bosnia ... More Information

Recession lessons (12)

Recession lessons (12)On 21.05.2006 the people of Montenegro voted for independence from Serbia, and the country is now a sovereign state and member of the UN, with EU candidate status expected this ... More Information

World Tunnel Congress in Budapest

World Tunnel Congress in BudapestThe next ITA World Tunnel Congress (WTC 09), entitled Underground Space and Tunnelling: Planning with Vision, will be organized by the Hungarian Tunnelling ... More Information

Ten years of progress at tunnelbuilder.com

Ten years of progress at tunnelbuilder.com1st April, 1999. The Internet bubble had popped, first generation dot.com companies had gone bust, and magazines were looking sick. Recession was the name ... More Information

Ten years of progress at tunnelbuilder.com

Ten years of progress at tunnelbuilder.com1st April, 1999. The Internet bubble had popped, first generation dot.com companies had gone bust, and magazines were looking sick. Recession was the name ... More Information

tunnelbuilder - meet the team

tunnelbuilder - meet the teamWhether you speak English, Spanish, Italian, French, German, Portuguese, Welsh, or most other languages, we will understand you. Our people in London, Madrid, Milan, Las ... More Information

Tunnelling News

Deutsche Bahn awards contract for Munich S-Bahn project

The contract involves structural works for the expansion, including the construction of tunnels and an underground station. The Tunnel Ostbahnhof JV, ... More Information

Excavation completed on Italian side of Brenner Base Tunnel

The tunnel boring machine (TBM) named “Flavia” successfully bored through the Alps beneath the Mules 2–3 section, reaching the Austrian border. More Information

Giant tunnel borer set for Shantou Bay project

A giant tunnel boring machine has been installed for tunnelling under Shantou Bay in Shantou, South China's Guangdong province. [Photo provided to ... More Information

€0.4bn road and tunnel project in Georgia

Work is proceeding on the Kvesheti-Kobi road and tunnel scheme in Georgia. The scheme is part of a larger project, being carried out with Chinese ... More Information

Lahore to transform with Rs49 billion tunnel boring project

Pakistan, April 27 -- The federal government has approved Lahore's Rs49 billion Tunnel Boring Project, marking a major development for the city... More Information

Construction at Cleveland Hopkins International Airport

The 2,100-foot-long tunnel connects the terminal to parking facilities and the tramway leading to the RTA public rail line. During the project, two of ... More Information

AFFHOLDER AND J.F. SHEA TEAM UP ON $700 MILLION CONTRACT

The tunneling subsidiary, Affholder LLC, will lead a joint venture with J.F. Shea Construction, Inc., to build the I-35 Capital Express Central ... More Information

Factory Testing Complete on DC Water's first tunnel boring machine for the Potomac River

Mary passed all the necessary requirements and is one of two TBM's on the project. The tunnel is part of DC Water's Clean Rivers Project, to ... More Information

Work on Chennai Metro tunnel racing to a finish

The machine Flamingo, which started boring in 2023 for the tunnel linking Light House with Thirumayilai, is expected to reach the other end in ... More Information

CPK awards contract to build high-speed rail tunnel in Lodz, Poland

The tunnel, to be constructed using a tunnel boring machine (TBM), will have a ... More Information

Inside HS2: Meet London's miners working on the Northolt tunnels

We are on a tunnel boring machine (TBM) inside High Speed Two's huge Northolt tunnels. These tunnel boring machines are part of a tunnelling ... More Information

Ontario Begins Construction Of Last Tunnel Segment Of The Eglinton Crosstown West Extension

The remaining eastern portion of tunnel construction (500-meter twin tunnels) will use the sequential excavation method, with daily progress of ... More Information

Norway is building the world's longest and deepest subsea road beneath its fjords

We have subsea road tunnels which have that construction. And the new tunnel between Germany and Denmark, there they are laying down cases and put ... More Information

CERN releases report on the feasibility of a possible Future Circular Collider

The estimated cost of construction of the FCC electron–positron stage, including the tunnel and all the infrastructure, is 15 billion Swiss francs... More Information

TBM break through on Auckland's £915M wastewater megaproject completes 16.2km tunnel

Auckland's major wastewater infrastructure project, the Central Interceptor, has reached a significant milestone with the final breakthrough of ... More Information

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