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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

Spanish line advances towards France

Spanish line advances towards FranceOn 07.07.2009 the 649 m-long Sant Andreu tunnel on the 3.3 km Sant Julia de Ramis-Cornella del Terri subsection of the Madrid-Barcelona-French border high-speed ... More Information

BASF Meyco updates its company profile

BASF Meyco updates its company profileLongtime sponsor of tunnelbuilder.com BASF Meyco has updated its profile to reflect the changes to the company over recent years, and its focus on expanding ... More Information

Progress on Madrid-Castilla La Mancha-Valencia-Murcia high-speed link

Progress on Madrid-Castilla La Mancha-Valencia-Murcia high-speed linkOn 02.07.2009, the 2.2 km-long Loma de Carrascal tunnel on the 10.9 km Cuenca-Olalla subsection of the Madrid-Castilla La ... More Information

Breakthrough on Camarillas railway bypass

Breakthrough on Camarillas railway bypassAfter a 140-day drive, on 03.07.2009, TBM Nenica broke through on the longest tunnel (2,250 m) of the Camarillas railway bypass on Spain's ... More Information

CAT man for Lovat

CAT man for LovatDick Cooper, general manager of Caterpillar Global Mining Operations for the Melbourne and Burnie facilities, has taken Lovat Tunnel Equipment under his wing, succeeding Rick Lovat ... More Information

ITA sets up training foundation

ITA sets up training foundationThe goal of the ITA-CET foundation is to be the link between universities, research facilities and consultancies and all types of professionals working in the ... More Information

BarChip fibre passes ten year milestone

BarChip fibre passes ten year milestoneBarChip is a highly engineered synthetic fibre produced by Elasto-Plastic Concrete (Europe) Ltd that has been developed to meet the toughest demands of the ... More Information

Robbins HP TBMs bore water tunnels in Andhra Pradesh

Robbins HP TBMs bore water tunnels in Andhra PradeshOn 24.06.2009 a 10.0 m High Performance (HP) Robbins Double Shield started to bore under the Nagarjuna Sagar National Park, the second tunnel of ... More Information

Singapore LTA awards two DTL2 stations to Sembawang

Singapore LTA awards two DTL2 stations to SembawangSembawang Engineers and Constructors, part of the Punj Lloyd group, has pocketed the EUR186 million contract for Botanic Gardens and Stevens ... More Information

Robbins HP TBMs bore water tunnels in Andhra Pradesh

Robbins HP TBMs bore water tunnels in Andhra Pradesh Minister for Major Irrigation Ponnala Lakshmaiah formally launched the drilling of the second tunnel of the Pula Subbaiah Veligonda project in ... More Information

GIA wins in small section Slovakian tunnel

GIA wins in small section Slovakian tunnelA complete line-up of GIA tunnelling equipment comprising two locomotives, four shuttle cars, and a crawler-mounted 9HR/B Haggloader were used by Skanska BS ... More Information

Simple wireless security

Simple wireless securityPrevention of unauthorised entry into tunnelling sites has never been more important to protect both personnel and equipment as well as the general public from site ... More Information

Zurich western bypass open to traffic

Zurich western bypass open to traffic The A3 western bypass in Zurich, including the Uetliberg Tunnel (2 x 4,430 m) and the Aescher tunnel (2,176 m, 2,142 m), opened to traffic on 04.05.2009. The ... More Information

Monte Grosso and Vispa tunnels open in Savona province

Monte Grosso and Vispa tunnels open in Savona provinceThe third lot of the ex SS 29 Colle di Cadibona bypass from km 133 to km 138.150, including the Big Mountain (1,480 m) and Vispa (480 m) ... More Information

BASF launches "Expanding Horizons" campaign for underground construction

BASF launches "Expanding Horizons" campaign for underground constructionAll underground solutions to be marketed under MEYCO brand. click here 25/09. More Information

Tunnel advance control system

Tunnel advance control systemOur good friend Uli Ramminger from tacs has issued his June, 2009 newsletter in time for RETC at Las Vegas, where he is exhibiting the latest tacs guidance equipment. To ... More Information

Modern tunnel guidance system

Modern tunnel guidance systemPPS guidance systems are designed specifically for TBMs and roadheaders, giving the operator all of the necessary information to keep his machine on course and to return ... More Information

Normet: Best year ever in 2008

Normet: Best year ever in 2008For Normet Group, one of the worldwide leading manufacturers of mining and tunnelling machinery, 2008 was the best year in its history. Its turnover reached 107 million ... More Information

Early breakthrough at Gotthard base tunnel

Early breakthrough at Gotthard base tunnelThe TBM Gabi I started driving southwards from Erstfeld on 4.12.2007. Some eighteen months later, and half a year earlier than planned, it reached its ... More Information

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

Tunnelling News

Howard's approved budgets include $44.9M for Ellicott City tunnel

The Howard County Council has approved a $2.4 billion operating budget for fiscal 2025, along with a $413 million capital construction budget that ... More Information

DC Water Breaks Ground On Potomac River Tunnel Project

DC Water on May 21 hosted a groundbreaking ceremony to officially commence construction activities for the Potomac River Tunnel Project... More Information

Silvertown Tunnel portal connections completed

A complete transformation of the tunnel shape was needed to connect the circular tunnel boring machine (TBM) constructed ... More Information

The $4BN Tunnel to Save Stockholm - The B1M

Above: A tunnel entrance under construction. When it completes in 2030, the $4BN project will be one of the longest road tunnel systems in the world. More Information

OHLA awarded the Gjønnes tunnel in Norway for nearly 160 million euros

The Norwegian Public Roads Administration (Statens Vegvesen) has awarded the company the design and construction of the Gjønnes tunnel for 156 ... More Information

Utilities tunnel dug through 'challenging' ground conditions under River Tees

Main contractor Farrans Construction worked with specialist contractor Joseph Gallagher to construct the tunnel. During its five weeks of tunnelling ... More Information

China develops world's first boring and blasting machine

In a groundbreaking development, the world's first boring and blasting machine, jointly developed by Tsinghua University and China Railway Science and Industry Group, has successfully ... More Information

Tunnel boring machine wedged in hard rock, leaving Snowy 2.0 hydropower project with new issues

Tunnelling problems are plaguing the $12 billion Snowy 2.0 hydropower project, with a boring machine previously bogged in soft ground now wedged in ... More Information

Construction Complete On New High-Speed Rail Tunnel

Inside the completed Desheng Tunnel, and inset, a Chinese high-speed train. Work on the project is now complete. © China ... More Information

DC Water Breaks Ground on Potomac River Tunnel Project

The Project consists of a large-diameter deep sewer tunnel, diversion facilities, drop shafts, and support structures to capture flows from existing ... More Information

Morocco’s proposed $13 billion underwater tunnel to connect Europe to Africa by 2030s

An historic intercontinental rail link is aiming to link Europe to Morocco with an ambitious underwater tunnel. The Moroccan National Company for Strait Studies (SNED) announced last ... More Information

Government set to fund £1bn final HS2 London tunnel drive

The project was halted as part of Prime Minister Rishi Sunak’s £6.5bn cost-cutting plan announced last October. This involved axing phase 2 to Manchester and finding a private investor ... More Information

HS2 Project Update, May 2024

Our Victorian railways have carried us successfully through history, but with passenger numbers continuing to rise, investing in new, modern railway lines like HS2 is the key to meet the ... More Information

PM inaugurates breakthrough of Sunkoshi Marin Diversion tunnel

A breakthrough of the Sunkoshi Marin Diversion Multi-purpose Project tunnel has been made... More Information

Toronto's Eglinton Crosstown extension moves closer to tunnelling completion

The project is being delivered by Infrastructure Ontario and Metrolinx. West End Connectors was awarded the C$729M (£425M) contract to design, build ... More Information

_Fehmarnbelt tunnel program hits major milestone

DEME Group said that the Fehmarnbelt tunnel project, one of Europe's largest infrastructure projects, has achieved a significant milestone with ... More Information

The incredbile new £12bn mega-tunnel that could end traffic chaos in world famous city

Construction on the £12.63 billion mega-tunnel has already begun and it is expected to be open in 2035. · Animation for The Hudson River Tunnel project. More Information

Great Lakes Tunnel Project makes progress

Ready to move forward. Enbridge is preparing to begin tunnel construction as soon as possible, following receipt of environmental permits ... More Information

Hudson Tunnel Project is expected to create 95,000 jobs

The report is based on research done on behalf of the Gateway Development Commission. “The Hudson Tunnel Project is the most pressing infrastructure ... More Information

The $2.8BN Megaproject Dividing London

London is building a controversial new tunnel under the River Thames. Head to https://brilliant.org/TheB1M/ for a 30-day free trial + the first 200 people will receive 20% off their ... More Information

Namma Metro: Underground tunnel work on Pink Line 95% complete

This underground portion includes the ambitious task of constructing 20.992 km of twin tunnels. Progress is also underway on the construction of 18 ... More Information

How an ancient water tunnel design is cooling 21st-century streets

In Seville, 3,000-year-old underground technology is being transformed in modern day air-conditioning. An aqueduct at the unopened CartujaQanat pilot ... More Information

Frederick Douglass Tunnel Program B&P Tunnel Replacement Project

Project Description: Proposed utility and roadway relocations include civil work to support the construction of Amtrak's Frederick Douglass Tunnel. More Information

Fehmarnbelt | Purpose-built vessel arrives to line tunnel trench with gravel 'cushion'

The Fehmarnbelt Fixed Link is a new road and rail tunnel being constructed between Denmark and Germany. It will comprise 89 precast concrete ... More Information

Successful Breakthrough of Gudauri Tunnel in Georgia's North-South Corridor KK Highway Project

KAZBEGI, Georgia, April 23, 2024--The 10-kilometer LOT1 Section is constructed by China Railway Tunnel Group Co., Ltd., of which the Gudauri ... More Information

Construction of Shinku La Tunnel to bolster all-weather connectivity in Ladakh Rising Kashmir

Leh, Apr 21: Member of Parliament from Ladakh, Jamyang Tsering Namgyal, announced that work on the strategically vital Shinku La Tunnel is set to ... More Information

Tunneling works for key Davao bypass road seen completed this year

The Davao City Bypass Construction Project is among the 14 foreign-assisted infrastructure projects approved by the National Economic Development ... More Information

Hamptons Subway Cuts Ribbon on New Foxwoods Tunnel

Hamptons Subway, with U.S. Transportation Secretary Pete Buttigieg, cut the ribbon to begin construction of the new tunnel from Sag Harbor to ... More Information

_TBM quartet tackles differing geology on twin bore tunnel under London

All four tunnel boring machines are now working on HS2's Northholt tunnel, which is divided into two geologically differing sections. More Information

CRCHI video

New CRCHI video for world leading underground equipment - Technology innovates the world... More Information

Deer Creek update

Exciting update from the Deer Creek project team! The Wasatch Worm is almost in the ground and will be ready to start tunneling this week. Over the next few months, it will be devouring a ... More Information

Stonehenge tunnel: Underground cabling installed, while other enabling works paused

The scheme, which involves the construction of a new 12.8km two-lane dual carriageway with a 3.2km tunnel under the Unesco World Heritage Site, was ... More Information

Nepal's first transport tunnel being built with Japanese assistance

Nepal and Japan signed the contract for construction of the tunnel on September 23, 2019, while the commencement started on November 14, 2019. More ... More Information

Cowi selected as technical advisor on world's first ever ship tunnel proposed in Norway

Construction is currently estimated to begin next year. The objective of the Stad Ship Tunnel project is to improve the navigability and safety of ... More Information

How Arnold Dix became a Himalayan hero after rescuing 41 workers from Indian tunnel collapse

Arnold Dix slid his hand into a gap in the rock at the entrance to a tunnel where 41 men were trapped alive, put his back against the cold stone and listened, and felt, and listened some ... More Information

Central Interceptor Tunnel Boring Machine

Watercare Services Limited’s Central Interceptor Tunnel Boring Machine, Hiwa-i-te-Rangi, has achieved a significant milestone, reaching 10,000m (10 kilometres) since leaving Māngere in ... More Information

New tunnelling machine joins three others digging high-speed line under London

Construction of the new HS2 line has hit another major milestone with the launch of the fourth – and final – machine being used to build the giant Northolt Tunnel beneath the capital... More Information

Lower Thames Crossing planning decision moves a step closer

On 21 March, the Planning Inspectorate confirmed that the Examining Authority has sent their recommendation report on the Lower Thames Crossing Development Consent Order (DCO) application ... More Information

AECOM-Jacobs JV signs on to $6B Amtrak tunnel job

Amtrak is gearing up to dig deep in Baltimore. The railroad company selected ADVANCE, a joint venture between Dallas-based infrastructure firms AECOM and Jacobs, to serve as the delivery ... More Information