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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

Lyon metro Line B extension starts

Lyon metro Line B extension startsOn 09.07.2009 the 1.7 km extension of Line B of the Lyon metro from Gerland to Oullins, with a crossing of the Rhone river, got underway. A 9.5 m diameter TBM will ... More Information

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Tunnelling News

NHAI connects Tunnel No. 4 on Shimla bypass

NHAI PIU Shimla Project Director Anand Kumar, Bharat Construction ... The tunnel was constructed using the New Austrian Tunnelling Method (NATM) ... More Information

Mumbai-Ahmedabad Bullet Train Update: Palghar Tunnel Breakthrough Achieved

NHSRCL Bullet Train Project | India First Bullet Train Update: Last year, the Ministry of Railways achieved a breakthrough in the construction of ... More Information

Main tunnel works connecting future Changi Airport T5 to existing T2 completed

Main tunnel works connecting the future Terminal 5 to the existing Terminal 2 are completed, as the Changi East development gathers pace... More Information

Testing completed on Hudson River Tunnel boring machines

The project calls for construction of 9 miles of passenger-rail track between New York ... More Information

World's longest motorway tunnel finally opens in £3BILLION project

The Tianshan Shengli (Victory) Tunnel, located in the Tianshan Mountains of Xinjiang, China, measures some 22 kilometres – roughly 13.75 miles – and ... More Information

Cross-river tunnel of Nanjing Metro Line 4 Phase II completes tunneling

This photo taken on Dec. 27, 2025 shows the rear of the "Xinzhengcheng" tunnel boring machine at the construction site of Nanjing Metro Line 4 ... More Information

Tunnels Design and Construction Market is Going to Boom

HTF Market Intelligence projects that the global Tunnels Design and Construction market will expand at a compound annual growth rate (CAGR) of 6.80% from 2025 to 2032, from 72 Billion in ... More Information

Longest tunnel in the world costing £7billion will connect 3 European cities

The Brenner Base Tunnel is currently under construction and will connect the countries of Austria and Italy. The impressive tunnel, which is set ... More Information

Georgian Officials Mark Completion of Railway Modernization, Hoping to Boost Transit

The works also included the construction of the 8,300-meter dual-tube tunnel near Kvishkheti, 10 bridges, six tunnels, and around 100 engineering ... More Information

Israeli municipality approves budget for new tunnel project south of Jerusalem

The Jerusalem Governorate said that the project aims to connect the Har Homa settlement, built on Jabal Abu Ghneim land, to the Begin bypass road near ... More Information

Megaprojects Under Construction Around World In 2026

Described as the largest road tunnel in the U.K., the Lower Thames Crossing will link Tilbury in Essex via a tunnel underneath the Thames with ... More Information

Delhi Metro expansion: Cabinet approved Rs 12,015 crore project

The project, planned over a construction timeline of three years, will be executed largely underground using tunnel boring machines to minimise ... More Information

World's Longest Expressway Tunnel to Open, Linking North and South Xinjiang

Engineers used innovative methods and specially designed machines called tunnel boring machines (TBMs) to dig through hard rock faster and safer than ... More Information

The huge £21bn mega-tunnel that goes right through the middle of a mountain

Huge boring machines will create a 57.5km (35.7mile) tunnel through the Alps to connect French and Italian high-speed rail networks and link Lyon ... More Information

Rome digs deep for railway that burrows beneath the Colosseum

Tunnellers used lasers to check whether ancient columns at the nearby Forum were not wobbling as their 300ft long tunnel boring machine churned ... More Information

World’s largest-diameter high-speed railway shield tunneling machine reaches milestone

The world's largest-diameter high-speed railway shield tunneling machine independently developed by China, “Linghang,” for the Chongming-Taizhou ... More Information

Third circuit on £1bn London Power Tunnels 2 project energised

Electricity has begun flowing through a new section of National Grid's London Power Tunnels 2 (LPT2) project after the energisation of a ... More Information

Westmead metro station cavern formwork the biggest in the southern hemisphere

Crews are now retrieving the 1,200-tonne Tunnel Boring Machines (TBMs) that arrived beneath Westmead in September and October, lifting each machine ... More Information

Webuild: excavation begins on three tunnels for Salerno-Reggio Calabria HS/HC Railway

All four TBMs planned for Lot 1A Battipaglia–Romagnano section are operational with launch of latest three Joining TBM Partenope, already active, are Leucosia and Ligea, whose names were ... More Information

SELI Overseas: 75 Years of Tunneling with TBMs

From Channel Tunnel to the Brenner Tunnel: When Tunneling Is Synonymous with Innovation ... SELI TBM at work on the construction site... More Information

Road realignment is major step for HS2, says firm

HS2 Ltd A view of the realigned B4525 on an overcast day. · HS2 Ltd An aerial view of the construction of Greatworth tunnel showing major earthworks ... More Information

Amtrak has made real progress in East River Tunnel rehabilitation

The tunnel has been stripped down to the concrete liner. Westbrook was told the project isn't just about modernizing and replacing what was, but also ... More Information

Madrid invests EUR 123 million in new metro stations on Line 11

TBM Mayrit enters into action in 2026 · November 2025 – February 2026: assembly of the tunnel boring machine in Comillas Park (Carabanchel district) ... Facebook Twitter Flag as ... More Information

Jerusalem Light Rail Construction Advances Ahead of Major Tunnel Work

Local reporting on city project materials notes that “the plan calls for a 2-km underground tunnel to be built beneath the city center, including ... More Information

Why and how the Civil Works Alliance changed Sizewell C tunnel designs from Hinkley Point C

Ground conditions around Sizewell C have required intense collaboration between the project’s contractors alliance to come up with new outfall and intake tunnel design solutions... More Information

AI planning of the first railway tunnel through challenging terrain

AI plans first rail tunnel through tough terrain. Artificial Intelligence China Uses AI for the Construction of Railway Tunnels. 2025-12-08 ... More Information

Will Tunneling Projects Be The Next Big Thing For Mumbai's Public Transport?

During the interview, she also called tunnel boring machines the safest and one of the most efficient ways of doing tunelling. "Only the place of the ... More Information

Chipolbrok vessels deliver tunnel boring machines to Sydney and mineral bulk to Peru

Chipolbrok delivers TBMs for Sydney Metro on Chipolbrok Star and loads 29000t minerals in Peru on Taixing, showcasing fleet versatility... More Information

How Seequent's software solutions help to manage tunnelling data

The second phase of Singapore's Cross Island Line (CRL) metro project is under way, assisted by a suite of software from Seequent. Singapore's CRL is ... More Information

Muography to Transform Tunnel Safety Monitoring

Underwater bridge tunnels have become vital arteries for cities, enabling smooth vehicular passage beneath rivers, bays, and inland waterways. More than 200 of these structures operate ... More Information

10 longest tunnels in the world that reshaped global transportation

Modern tunnel construction involves sophisticated techniques, including tunnel boring machines and advanced geological surveying. The project ... More Information

Čučković: Construction of the tunnel boring machine for the Belgrade Metro in final phase

It is a good thing that we, for example, acquired these tunnel boring machines at a lower price than other countries... More Information

Serbia plans to borrow 2.5 billion EUR in 2026 for the construction of the Belgrade metro

It is also stated that two TBMs (tunnel boring machines), the so-called moles, have already been ordered and are expected to be delivered to ... More Information

VSM starts operation at Tilbury

The pioneering Vertical Shaft Sinking Machine (VSM) from Herrenknecht, named “Verena”, after Verena Holmes, a pioneering British mechanical ... More Information

Metrolinx reveals names of Ontario Line tunnel boring machines

Following a contest, Metrolinx has officially named its two massive tunnel boring machines Libby and Corkie... More Information

Montreal blue line metro tunnel boring machine has arrived, time to dig

It's basically building the backbone of the blue line extension,” said project chief Maha Clour, pointing out that crews have reached the bottom of ... More Information

Norway Unveils The World's Longest Road Tunnel In A Majestic Engineering Marvel

The construction cost broke down to about 38,000 NOK (roughly £3,500) per meter, an impressive figure considering the complexity and scale of the ... More Information

Sydney Metro West construction captured on video ahead of 2032 opening

Two giant tunnel boring machines have made their way through the deepest section of Darling Harbour as part of works on the new Metro West. More Information

Bengaluru's ₹18,000-crore tunnel road project inches closer as four major firms submit bids

Four firms bid for Bengaluru's ₹18000 crore tunnel project linking Hebbal to Silk Board, expected to ease city traffic by 2029 under a 34-year ... More Information