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High speed from Madrid to the Atlantic

High speed from Madrid to the AtlanticThe 87.1 km-long section from Ourense to Santiago de Compostela on the Madrid-Galicia electrified high-speed line is European standard, double track. It passes ... More Information

Abu Dhabi by 2030

Abu Dhabi by 2030The Capital City District, currently under planning for the Emirate of Abu Dhabi in the UAE, will house 350,000 people and provide 150,000 jobs. An integrated, high capacity transit ... More Information

Italian tunnel upgrades announced

Italian tunnel upgrades announced Autostrade per l'Italia Spa has announced the awards of contracts to upgrade installations in 50 tunnels on the A1 and A7 motorways out of Milano. Click here. 09/09. More Information

Excavation of Stafelter tunnel starts in Luxembourg

Excavation of Stafelter tunnel starts in Luxembourg Excavation of the 1.85 km-long twin tube Stafelter tunnel on the A7 Route du Nord began at the south portal on 18.02.2009. The tunnel, 200 m of ... More Information

Recession lessons (10)

Recession lessons (10)"Longterm, American business is a very good place to be, but sometimes the machine gets gummed up, and people get afraid. Fear is contagious: it takes five minutes to become ... More Information

Italian tunnel upgrades announced

Italian tunnel upgrades announced Autostrade per l'Italia Spa has announced the awards of contracts to upgrade installations in 50 tunnels on the A1 and A7 motorways out of Milano. Medi Impianti ... More Information

North American update

North American updateThe proposed replacement of the Alaskan Way viaduct in downtown Seattle with a 3.2 km-long bored double-deck road tunnel is symptomatic of the current trend in North America to ... More Information

Work starts in Laives tunnel

Work starts in Laives tunnelWork started on 10.02.2009 at the northern portal of the new 2,882 m-long, Laives tunnel in Trentino Alto Adige, Italy, which is part of the ring road between Bronzolo ... More Information

Robbins TBM designed to reduce diameter

Robbins TBM designed to reduce diameterThe Robbins main beam TBM employed at Akkoy II hydro project in northeast Turkey will bore a 6.7 km-long headrace at 4.8 m-diameter before downsizing to 4.0 ... More Information

New BASF excluder grease for TBMs

New BASF excluder grease for TBMsBASF Construction Chemicals has set up a dedicated production plant for main bearing sealing greases for the current generation of large, fast TBMs. Read the full ... More Information

Herrenknecht threesome for Mexico City

Herrenknecht threesome for Mexico CityHerrenknecht is providing three EPBs for the Mexico City Eastern Wastewater Tunnel, which will have a total length of 60 km at depths of up to 200 m. The first ... More Information

North American update

North American updateThe proposed replacement of the Alaskan Way viaduct in downtown Seattle with a 3.2 km-long bored double-deck road tunnel is symptomatic of the current trend in North America to ... More Information

Almaty metro line 1 to open in 2009

Almaty metro line 1 to open in 2009Line 1 of Almaty metro in Kazakhstan has been a long time coming. Started in 1988, some 7 km of tunnel were bored, only to be abandoned when cash ran out. A new ... More Information

Martin Herrenknecht becomes first European Mole

Martin Herrenknecht becomes first European MoleThe Moles Award 2009 has gone to Dr Martin Herrenknecht for his extraordinary service to the heavy construction industry, and in particular for his ... More Information

Update your shows diary with tunnelbuilder!

Update your shows diary with tunnelbuilder!Our Professional Tunnellers Diary, accessed through the front page button above, is continuously updated. Right now you will find contact details for 28 ... More Information

SELI success in southeast Europe

SELI success in southeast EuropeItalian contractor SELI has been active in Turkey and Greece, with TBMs in the ground in both countries.In December 2008, SELI commissioned to ILCI the new 4.88 ... More Information

Thermal Ceramics wins Bjorvika fireproofing contract

Thermal Ceramics wins Bjorvika fireproof lining contractSome 675 m of the centre section of Bjorvika tunnel comprises six immersed tube elements containing three traffic lanes in each direction. ... More Information

Recession lessons (9)

Recession lessons (9)"After 21 years of experience in the design, production and commissioning of high-tech equipment, the expertise and know-how of our teams is recognized both on the national and ... More Information

Shenzhen metro line 3 progress

Shenzhen metro line 3 progressA trio of NFM Technologies 6.28 m-diameter EPBs has begun excavation of metro line 3 tunnels in Shenzhen, China. The first machine got underway on 14.10.2008 driving ... More Information

Robit Rocktools lead the way!

Robit Rocktools lead the way!We are particularly pleased to announce that Robit Rocktools of Finland is our first new client for 2009. For around 25 years, Robit has been providing high quality rock ... More Information

Recession lessons (8)

Recession lessons (8)"Despondency and constant negativism, attitudes which unfortunately abound today, are not recipes which are of much use to us in the future. Providing young and ambitious junior ... More Information

Marioff milestones

Marioff milestonesFrom its base in Vantaa, Finland Marioff produces its innovative HI-FOG® water mist fire protection systems for use in every corner of the Earth. Each system is tailored to the ... More Information

Update on Australia and New Zealand

Update on Australia and New ZealandAmongst major projects completed by end-2008 in Australia are the Gold Coast desalination plant with 2 x 3.4 m x 1.5 km outfalls bored by 2 off Herrenknecht TBMs ... More Information

Thermal Ceramics wins Bjorvika fireproof lining contract

Thermal Ceramics wins Bjorvika fireproof lining contractThe tender for fire protection at Bjorvika road tunnel in Oslo, see tunnelbuilder archive no/56, has been awarded to IFS, the official ... More Information

Update on Australia and New Zealand

Update on Australia and New ZealandThe Brisbane Airport Link feasibility study has been completed, and a jv of Thiess, John Holland, Macquarie has been selected as preferred contractor. And the ... More Information

Poyry awarded Polish railway engineering contracts

Poyry awarded Polish railway engineering contractsPöyry has been awarded a EUR8.9 million engineering contract by PKP Polskie Linie Kolejowe SA for detail design and tender documentation for the ... More Information

Recession lessons (7)

Recession lessons (7)Don't be fooled by imitators! There is only one tunnelbuilder, and the only way to benefit from our 2,000+ readers/day is to promote your company at our websites. That way, ... More Information

Recession lessons (6)

Recession lessons (6)"We need to remake the banking system to better reflect the needs of business. They cannot simply go back to a reliance on mortgage lending." Edmund Phelps, Columbia University, ... More Information

STEC launches its own large-diameter slurry shield

STEC launches its own large-diameter slurry shieldShanghai Tunnel Engineering Company (STEC) has announced the launch on 26.12.2008 of its in-house designed and built 11.22 m-diameter slurry shield. ... More Information

Ganzstein closes Semmering gap

Ganzstein closes Semmering gapCompletion of the second 2.1 km-long tube at Ganzstein on the S6 Semmering Expressway will provide the final link on the motorway route between Lower Austria and ... More Information

Happy New Year for 2009!

Happy New Year for 2009!When we look back on 2008, we can be thankful that we work in the tunnelling industry, possibly the only part of the construction sector that is still largely intact. The ... More Information

Mont Sion tunnel opens to traffic

Mont Sion tunnel opens to trafficThe north stretch of the A41 highway between Villy-le-Pelloux/Saint-Martin-Bellevue and Saint-Julien-en-Genevois in the Upper Savoy region of the French Alps, ... More Information

VMT consolidates success in China

VMT consolidates success in ChinaHaving operated in China since 2006 as a service company supporting its TBM guidance systems, VMT has now achieved the official status of a Trading Company. So, ... More Information

Palazzoli seeks commercial partner for Norway

Palazzoli seeks commercial partner for NorwayPalazzoli, a leading European industrial electrical equipment manufacturer with increasing activity in road and railway tunnels, is seeking a ... More Information

California high speed rail programme management

California high speed rail programme managementThe proposed USD40 billion (US$1 = EUR0.72), 1,290 km-long California high speed rail system will serve San Franciso, Los Angeles and San Diego, with ... More Information

Recession lessons (5)

Recession lessons (5)"Just because we have a US$15 billion (US$1 = EUR0.72) budget deficit does not mean we should not have a high speed rail system. California should show leadership, and show the ... More Information

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Tunnelling News

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

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