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Lovat EPBs for Toronto-York Spadina Subway Extension

Lovat EPBs for Toronto-York Spadina Subway Extension Four Lovat 6.12 m diameter RME241SE EPBs will be utilized in the construction of the 8.6 km-long Toronto-York Spadina Subway Extension, located ... More Information

SELI signs second contract with ILCI in Turkey

SELI signs second contract with ILCI in TurkeySELI has signed a new EUR15 million contract with Turkish commissioner ILCI INSAAT SANAYI VE TICARET A.S. for construction of a 17 km-long water tunnel ... More Information

Brisbane Northern Link design progress

Brisbane Northern Link design progressThe authorities in the Australian city of Brisbane will rely on loans to finance the EUR1 billion, 4.7 km-long Northern Link tunnel project under design by SKM ... More Information

InnoTek solutions for underground

InnoTek solutions for undergroundInnoTek Srl was at the recent WTC 2009 conference to present a new series of products and solutions for underground works. Five product families have been developed ... More Information

Balfour Beatty to acquire Parsons Brinckerhoff

Balfour Beatty to acquire Parsons BrinckerhoffNew York City-based engineering consultancy Parsons Brinckerhoff is recommending shareholder approval of its acquisition by London-based infrastructure ... More Information

Herrenknecht giants cross Yangtze river

Herrenknecht giants cross Yangtze riverA pair of 14.93 m-diameter Herrenknecht Mixshield TBMs have each successfully completed 3 km of tunnelling beneath the Yangtze river at Nanjing in Jiangsu, ... More Information

New section of Sofia metro Line 1 opens

New section of Sofia metro Line 1 opensThe 2 km section Serdika - Vasil Levski National Stadium of Sofia metro Line 1 opened on 08.09.2009, connecting the region's eastern and western boroughs and ... More Information

Traficon PR

Traficon PRTraficon of Belgium has 25 years field experience in video image processing for traffic analysis, with more than 60,000 video detection sensors operational worldwide. The company has been ... More Information

Dubai Metro - longest automated driverless train system

Dubai Metro - longest automated driverless train systemA section of Dubai Metro Red Line with 10 stations opened to the public on 10th September, 2009. Although the original planned opening date was ... More Information

Sri Lanka's Uma Oya launches forty years on

Sri Lanka's Uma Oya launches forty years onThe Uma Oya project to bring water and electricity to 500,000 parched Sri Lankans was first planned as part of the 1968 Mahaweli project, which was ... More Information

Cellular concrete white papers

Cellular concrete white papersCellular Concrete LLC has issued its fourth white paper in the Smart Foam Liquid Concentrate Solution series, which assesses alternative methods available for ... More Information

Päijänne - world's longest tunnel

Päijänne - world's longest tunnelReader Juha Huovilainen juha.huovilainen@marimils.fi has updated the tunnelbuilder Hall of Fame entry for Päijänne tunnel in Finland. After 27 years as the ... More Information

Deo Ca Pass tunnel in Central Vietnam moves forward

Deo Ca Pass tunnel in Central Vietnam moves forwardThe twin tube Deo Ca Pass highway tunnel will have a total length of 5.45 km. Phu Yen and Khanh Hoa provincial administrations are supervising ... More Information

World's longest water diversion tunnel

World's longest water diversion tunnelThe 85.3 km-long, 8 m-diameter tunnel from Hengren county to Xinbin county in East Liaoning will deliver water from Dahuofang reservoir to more than 10 million ... More Information

Art and craft

Art and craftIn Ireland, Limerick County Council is advertising for artists to create permanent outdoor artwork for their ring road and tunnel, for which they will pay EUR500 to each of the five ... More Information

Safe tunnelling in urban areas

Safe tunnelling in urban areasMeyco Global Underground Construction has announced that the BASF TBM 2009 conference will take place in Singapore from 5-7th November. The emphasis will be on EPB and ... More Information

Big 5 PMV moves to Dubai Arena

Big 5 PMV moves to Dubai ArenaBig 5 PMV, the most important event for construction plant, machinery, equipment and vehicles in the Middle East, will take place from 23-26 November, 2009 in The ... More Information

Tunnel Construction Services RFQ

Tunnel Construction Services RFQNew York City Economic Development Corporation (NYCEDC) is inviting construction firms to submit a Statement of Qualifications for the provision of construction ... More Information

Recession survivors guide

Recession survivors guideOf the 14 major economies that went into recession, Japan, France and Germany have already hauled themselves out, and will progressively be followed by their peers. Most of ... More Information

Second Herrenknecht launched at Veligonda project

Second Herrenknecht launched at Veligonda projectThe 7.96 m-diameter hard rock double shield Herrenknecht TBM launched at Dornala last year on an 18.5 km water tunnel drive has been joined by a ... More Information

Big plans for Korea traffic

Big plans for Korea trafficKorea currently has 25 expressway routes totalling 3,103 km, a figure that will increase to 4,000 km by 2010 and 6,160 km by 2020. Design work will start in 2010 on a ... More Information

IWMA to meet in London

IWMA to meet in LondonThe International Water Mist Association conference is taking place at the Hilton Hotel in Paddington, London from 23.09.2009 to 24.09.2009. Sponsored by Fogtec, Tyco, Danfoss ... More Information

Tunnel waterproofing

Tunnel waterproofingTunnel waterproofing - a new level of protection Stirling Lloyd specializes in the development, manufacture and application of high-performance waterproofing and structural ... More Information

Progress on Guang-Fo line in Guangzhou

Progress on Guang-Fo line in GuangzhouThe 32.2 km-long Guang-Fo Line is part of the Chinese government's Intercity Rapid Rail Project to link nine cities in Guangdong Province by 2015, including ... More Information

Heavy going in Albania

Heavy going in AlbaniaBechtel-Enka, the US-Turkey consortium building the 57 km-long motorway between Rreshen and Kalimash, has reported its experience on the 5.5 km-long NATM twin tube tunnel at ... More Information

First section of Duplex A86 opens west of Paris

First section of Duplex A86 opens west of ParisThe first 4.5 km section of Duplex A86, between Rueil-Malmaison and the A13 motorway interchange in Vaucresson Le Chesna opened on 01.07.2009. The ... More Information

Three new lines for Dalian metro

Three new lines for Dalian metroConstruction of 58.1 km of subway lines 1, 2 and 4 commenced on 25.07.2009 at Dalian, one of the largest cities in northeast China's Liaoning Province, where a total ... More Information

Longest Indian rail tunnel progress

Longest Indian rail tunnel progressIndian Railways has almost completed the 7.5 km stretch of its 11 km Pir Panjal tunnel project in the State of Kashmir, the longest tunnel in the country (in/36). ... More Information

Sofia metro gets underway

Sofia metro gets underwayWork began in July, 2009 on the new stretch of Sofia metro line 1 to connect the Obelisk - Serdika and Vasil Levski Stadium - Mladost 1 sections, which themselves will be ... More Information

Barcelona St Just tunnel looking good

Barcelona St Just tunnel looking goodIn November, 2008, two 5.98 m-diameter double shield TBMs, one from SELI and the other from Herrenknecht, started to bore the 11.5 km-long St Just water tunnel ... More Information

Pajares twin tunnels completed

Pajares twin tunnels completedThe second tube of the 24.6 km-long Pajares twin tunnel on the high-speed railway link between Leon and Asturias in northern Spain was completed on 11.07.2009. The ... More Information

Santa Cristina bypass opens in Val Gardena

Santa Cristina bypass opens in Val GardenaThe new 1.6 km Santa Cristina bypass opened in Bozen province on 17.07.2009. Overall cost was EUR32.1 million, of which EUR4.8 million was spent on Monte ... More Information

Two more NATM tunnels completed on the Madrid-Murcia high speed line

Two more NATM tunnels completed on the Madrid-Murcia high speed lineThe single-tube, 85 sq m section, 2.2 km-long Loma del Carrascal tunnel on the 10.9 km-long Cuenca-Olalla section of the ... More Information

Mühlhäuser catalogue goes online at tunnelbuilder.com

Mühlhäuser catalogue goes online at tunnelbuilder.comOur good friends at Mühlhäuser, who have been celebrating over 100 years in the mining and tunnelling equipment business, have entrusted ... More Information

Major HATS award to Leighton Asia JV

Major HATS award to Leighton Asia JVThe design/construct contract for a 7.5 km-long drill/blast tunnelled section of Hong Kong's latest sewage conveyance system, value EUR235 million, has been ... More Information

Mike Rispin to head Normet in North America

Mike Rispin to head Normet in North AmericaNormet, the Iisalmi, Finland based provider of underground mining and tunnelling equipment and care solutions has announced the appointment of Mike Rispin ... 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