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€70 Million to Rebuild Two High Speed Rail Tunnels

€70 Million to Rebuild Two High Speed Rail TunnelsThe Spanish Ministry of public works will spend €70 million -on top of the €54 million already spent- to rebuild the Montblanc and La Riba ... More Information

European Union to Strengthen Safety Rules for Road Tunnels

European Union to Strengthen Safety Rules for Road TunnelsThe transport ministers of the EU backed a directive proposal for stricter safety regulations in European tunnels, that were endorsed in a ... More Information

Weldgrip for one-stop ground and strata control

Weldgrip for one-stop ground and strata controlWeldgrip has a dedicated, purpose-built facility for the manufacture of machinery, tools and equipment for ground and strata control. Supplying a full ... More Information

Fourth Breakthrough at Lötschberg Base Tunnel

Fourth Breakthrough at Lötschberg Base TunnelAfter two years and four months, the Herrenknecht TBM which started working from Raron has completed on schedule a 10 km east tube section to the Ferden ... More Information

Hsueshan Tunnel Breaks Through

Hsueshan Tunnel Breaks ThroughTaiwan's President Chen Shui-bian, Premier Yu Shyi-kun, and Minister of transportation and communications Lin Ling-san attended the breakthrough by a Robbins TBM of the ... More Information

Hai Van Pass Tunnel Breaks Through

Hai Van Pass Tunnel Breaks ThroughA major breakthrough took place at the Hai Van tunnel on 28th October when workers on either side of the 6,247 m-long 11.9 m-wide tunnel met each other. Workers of ... More Information

First Robbins TBM for Karahnjukar - is/14

First Robbins TBM for Karahnjukar - is/14The Owner, the Consultant and Impregilo have signed off on delivery of the first of three Robbins TBMs for the Karahnjukar project in Iceland. The first TBM ... More Information

NFM Technologies to Supply Second TBM to Excavate Kazan's First Metro Line

NFM Technologies to Supply Second TBM to Excavate Kazan's First Metro LineKazmetrostroy, in charge of building Kazan's metro, has ordered a second hand TBM from NFM Technologies. This machine will ... More Information

US Department of Transport Publishes Recommendations for Bridge and Tunnel Safety

US Department of Transport Publishes Recommendations for Bridge and Tunnel SafetyThe Federal Highway Administration (FHWA) has published a report stressing that tunnels and bridges in the United ... More Information

Consultant Wanted for Major Highway Tunnel

Consultant Wanted for Major Highway TunnelA well-qualified M & E control consultant is required for the twin-tube, 18 km-long Qinling Zhongnanshan, tunnel, currently under construction as ... More Information

Tunnelling Sub-Contractor Urgently Required

Tunnelling Sub-Contractor Urgently RequiredValecha Engineering has received a design work order to commence Udaipur city's Mansi Wakal water supply project near Dewas in India, value Rs165 million. ... More Information

King Juan Carlos Inaugurates Madrid to Lleida HSL

King Juan Carlos Inaugurates Madrid to Lleida HSLKing Juan Carlos and Queen Sofia inaugurated on 10th October the Madrid to Lleida high speed line during a inaugural trip which took four hours to ... More Information

Section of A86 Tunnel in Paris Breaks Through

Section of A86 Tunnel in Paris Breaks ThroughThe Herrenknecht TBM boring the east tunnel on the A86 motorway west of Paris broke through on 14th October the first section, named VL1 and 4.5 km in ... More Information

Herrenknecht TBM to Build Martignano Tunnel in South Tyrol

Herrenknecht TBM to Build Martignano Tunnel in South TyrolA Herrenknecht hard rock single shield TBM is arriving in pieces in Trento province, Italy to drive a twin tunnel on the 4 km Martignano ... More Information

European Commission Proposes New Projects and New Funds to Dynamise Europe

European Commission Proposes New Projects and New Funds to Dynamise EuropeThe European Commission proposed on 1st October adapting the guidelines for the trans-European transport network (TEN-T) to ... More Information

Antraquip for tunnel excavation, support and specialist plant services

Antraquip for tunnel excavation, support and specialist plant servicesAntraquip Corporation offers a wide range of plant and equipment expertise in the supply, refurbishment and rebuilding of ... More Information

Dataline Tunnelling 2003 Event in Madrid

Dateline Tunnelling 2003 Event in MadridTo highlight the booming civil engineering sector, and more particularly tunnelling both at Spanish and international levels, IIR Spain organises on 28th-30th ... More Information

Code of Practice for Risk Management of Tunnel Works

Code of Practice for Risk Management of Tunnel Works The BTS has published a joint code of practice agreed with British insurers designed to promote and secure best practice for the minimization and ... More Information

Read All About It!

Read All About It!E-News Weekly from tunnelbuilder is the only weekly tunnelling market intelligence e-newsletter available from any source. This week, issue No 93 describes the punishment meted out ... More Information

World's Deepest Underground Station Mooted at Gotthard

World's Deepest Underground Station Mooted at GotthardPlans are afoot to build the world's deepest underground railway station in Switzerland, nearly one kilometre below the surface. The "Porta ... More Information

Tests to Better Understand Fire Propagation in Tunnels

Tests to Better Understand Fire Propagation in TunnelsIn recent years a number of road tunnels fires have occurred throughout Europe with catastrophic outcome. Among these are the fire in the Mont ... More Information

Second TBM Start for Line 9 in Barcelona

Second TBM Start for Line 9 in BarcelonaLlobri, this is the name of the second TBM that will drive the 44 km metro line 9 in Barcelona. The machine started to tunnel the new line between the Gorg ... More Information

Putzmeister Concrete Pumps for Lötschberg Base Tunnel

Putzmeister Concrete Pumps for Lötschberg Base TunnelPutzmeister concrete pumps and concrete wet spray machines are being used on several contract sections of the Lötschberg. Consortium Satco is ... More Information

Welcome to the Future!

Welcome to the Future!tunnelbuilder.com front page has undergone a substantial revision this week, as part of a complete upgrade of our operating software. Page presentation is now database-driven, ... More Information

Four Road Headers Now Work on Cross City Tunnel in Sydney

Four Road Headers Now Work on Cross City Tunnel in SydneyFour roadheaders are now tunnelling underneath Sydney to build the Cross City Tunnel (CCT). Since the first machine started work on 19th May, ... More Information

Dateline Underground Construction 2003

Dateline Underground Construction 2003It's high time to make travel plans for the UC 2003 conference and exhibition, which takes place at ExCeL, London on 24-25th September. ExCeL is at the old ... More Information

Busy Time for Robbins

Busy Time for RobbinsIn the US, the first of two Robbins TBMs has started on the 14km long Nancy Creek sewer tunnel in Atlanta, GA, while a Robbins 5.6 m-diameter hard rock machine at Chicago TARP ... More Information

Geokon - world-class geotechnical instrumentation

Geokon - world-class geotechnical instrumentationGeokon is the most successful designer and manufacturer of vibrating wire geotechnical instrumentation, with a line of products that is unsurpassed ... More Information

Spanish Tunnellers Rescued from Guadarrama Tunnel

Spanish Tunnellers Rescued from Guadarrama TunnelThirty-four workers have been rescued after being trapped by fire for five hours on 6th August in the Guadarrama railway tunnel under construction on ... More Information

New Concept in Lighting Control from Mayer

New Concept in Lighting Control from MayerMayer International (UK) Ltd has introduced an advanced new concept in automated light switching technology for road tunnels. Known as System-1600, it ... More Information

Muck Cars Designed by CSM Bessac Receive Innovation Award

Muck Cars Designed by CSM Bessac Receive Innovation AwardThe Roll and Rock process designed by CSM Bessac, a small-to-midsize TBM maker based near Toulouse, France has received a French construction ... More Information

Wirth Completes Shaft II in Sedrun for Gotthard Base Tunnel in Record Time

Wirth Completes Shaft II in Sedrun for Gotthard Base Tunnel in Record TimeThe breakthrough by a Wirth shaft boring machine of the tunnel floor level on 23rd June, 2003 marked another milestone at ... More Information

Crossrail Gets Green Light

Crossrail Gets Green LightThe UK government has given the go-ahead for the £10 billion Crossrail project that will link east and west London. But transport Secretary Alistair Darling has again ... More Information

Herrenknecht Reports Growth

Herrenknecht Reports GrowthHerrenknecht AG, in its 2002 Annual Report, has reported sales in excess of €300 million for the first time, consolidating its position as market leader in TBM ... More Information

Putzmeister Contribute to Building Taiwanese HSR in Record Time

Putzmeister Contribute to Building Taiwanese HSR in Record TimeA 345 km high speed railway is under construction in Taiwan between capital Taipeh and Kaohsiung in the south. Numerous Putzmeister ... More Information

Chancellor Schröder Inaugurates Germany's Longest Road Tunnel

Chancellor Schröder Inaugurates Germany's Longest Road TunnelChancellor Gerhard Schröder inaugurated on 5th July the nearly 8 km-long Rennsteig tunnel, Germany's longest road tunnel linking ... More Information

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Tunnelling News

ECRL Breakthrough: Genting Tunnel Becomes SEA's Longest Rail Tunnel

Genting Tunnel's construction used both Tunnel Boring Machines (TBM) and traditional drill-and-blast methods. The TBMs, built in China and ... More Information

Sydney tunnel factory creates 700 manufacturing jobs

The factory will support two of the largest tunnel boring machines (TBMs) in the Southern Hemisphere, set to arrive later this year. Once ... More Information

2.7 km Breakthrough Achieved in Bullet Train Tunnel

The tunnel also features a 7-kilometre undersea stretch beneath Thane Creek, a first of its kind in India. To ... More Information

Australian-first Sydney tunnel fabrication facility opens

The tunnel boring machines are expected to arrive in Sydney later this year, before being assembled deep underground below Birchgrove. They will ... More Information

ECRL Breakthrough: Genting Tunnel Becomes SEA's Longest Rail Tunnel

Genting Tunnel's construction used both Tunnel Boring Machines (TBM) and traditional drill-and-blast methods. The TBMs, built in China and ... More Information

4000-tonne machines dig arterial route under Melbourne's west

The West Gate Tunnel Project is in full swing beneath Melbourne's inner west, with tunnel boring machines (TBMs) Bella and Vida at the helm... More Information

Gotthard drilling machine gets no further - now it has to be blown up

Forced break in the Gotthard road tunnel: After 190 meters, the drilling machine working on the second tube has come to an end for the time being... More Information

Construction begins on 6 Cross Island Line Phase 2 stations

Tunnel Boring Machine measuring 12.8m in diameter. The machine will “bore through the ground only once for the construction of the tunnel which ... More Information

Tunnel boring machine returns after installing $22 million outfall

A 19.5 tonne tunnel-boring machine docked at Onehunga Wharf on Friday afternoon after successfully tunnelling the $22m Clarks Beach Outfall over ... More Information

Scarborough Subway Extension tunnelling progresses following maintenance stop

The remaining portion of the tunnel will be delivered by Scarborough Transit Connect, the development partner for the project's stations, rail and ... More Information

World's Deepest Underwater Tunnel to Have Cars Drive 16 Miles Under the Sea

Norway is building what is to become the longest and deepest road tunnel under the sea. The Rogfast project, measuring 26.7 kilometers (about 16.5 ... More Information

Tunnelling underway for National Grid’s 3.4km power tunnel in Snowdonia

The tunnel boring machine (TBM) Buddug has commenced excavation of National Grid’s 3.4km power tunnel in Wales’ Eryri National Park, otherwise known as Snowdonia. The tunnel is part of ... More Information

CPK signs contract for construction of HSR tunnel in Łódź

The contract for the construction of a 4.6 km long, 14-metre wide High-Speed Rail (HSR) tunnel will be carried out by construction company PORR. The project is valued at approximately PLN ... More Information

Underneath the busy Baltimore streets, the Howard Street Tunnel gets its makeover

A squad of construction workers descend daily under the streets of Baltimore. They labour deep down, in the semi-secret and highly restricted ... More Information

London Power Tunnels Milestone

We're thrilled to announce that our second 2.5km high-voltage circuit between Hurst and Crayford is now live. This £1 billion project is rewiring London, strengthening energy supply, and ... More Information

U.S. Tunneling Professionals Convene in Dallas at RETC 2025

The event drew approximately 1,400 people. Another highlight of the conference was the presentation of the now annual Underground Construction ... More Information

Construction of NY and NJ GatewayTunnel hits halfway mark

People are looking down at the ground from the Highline on Manhattan's West Side. Some parts of the new train tunnel structure ... More Information

Silicon Valley BART extension seeks new tunneling contractor

Silicon Valley BART extension seeks new tunneling contractor for construction. Maguire told reporters during a briefing Monday morning. He noted that VTA is trying to fill a $1.2 billion ... More Information

Tunneling In The Digital Age: Rethinking Subsurface Infrastructure

But successful construction is just the start of the journey. Underground infrastructure is a long-term investment—just look at the London Underground ... More Information

Sydney Moves Forward with Final Tunnelling for Harbour Project

Sydney prepares for the arrival of the largest TBMs in the Southern Hemisphere as the Western Harbour Tunnel project enters its final tunnelling ... More Information

Metrolinx seeks help to name 2 of its massive Ontario Line tunnel digging machines

Metrolinx is now accepting names for two of its giant tunnel boring machines (TBMs), which will be used for twin 16-metre-deep and six-kilometre-long ... More Information

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