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Bilbao Metro Line 3 Txurdinaga-Casco Viejo alignment

Bilbao Metro Line 3 Txurdinaga-Casco Viejo alignmentFrom the beginning of the stretch (km 3+400 to km.4+350) the design consists of a double-track tunnel 950 m long of 58 m2 in cross section. In the ... More Information

Line 3 for Bilbao metro

Line 3 for Bilbao metro The Txurdinaga-Casco Vejo section of Bilbao metro Line 3 More Information

Four tenders closing this week

Four tenders closing this weekAt this time of year, when tenders are thin on the ground as the system recovers from the northern hemisphere holiday season, every little counts. Our Live Bids section ... More Information

Innotrans 2010 opens in Berlin

Innotrans 2010 opens in BerlinToday sees the opening of the largest rail transport technology show to be held in Berlin. Innotrans 2010 features 2,242 exhibitors from 45 countries, and takes up the ... More Information

STUVA praise for transport tunnels

STUVA praise for transport tunnelsDr Roland Leucker, head of STUVA, observed at the opening press conference at Innotrans in Berlin that tunnels help to relieve the volume of traffic and improve the ... More Information

TAM and Normet acquire total control of TAM India

TAM and Normet acquire total control of TAM IndiaNormet and TAM have taken a further step towards their goal of total solutions provider for the construction sector by acquiring the remaining 50% of ... More Information

International Tunnelling Awards deadline extended

International Tunnelling Awards deadline extendedThe inaugural international tunnelling awards presentations take place in London on Wednesday, 8th December, 2010. Nominations are invited in ... More Information

Robbins enters slurry TBM market in China

Robbins enters slurry TBM market in ChinaThe Robbins Company will supply a 6.26 m-diameter slurry TBM to excavate the 2.7 km-long Zhanjiang Bay cross-sea tunnel that will carry fresh water to the ... More Information

Experienced TBM Operators and TBM Electricians urgently required

Experienced TBM Operators and TBM Electricians urgently required IPS is seeking experienced TBM Operators and TBM electricians for new contracts in Europe, starting as soon as possible. Contact ... More Information

Global Tunnel Conference-China 2010

Global Tunnel Conference-China 2010November 17-18 sees the Global Tunnel Conference-China event revisiting Beijing. The conference theme is based on new technologies, new equipment and new methods ... More Information

ES Rubber Industries for tailor-made sealing solutions

ES Rubber Industries for tailor-made sealing solutions ES Rubber offers the tunnelling industry tailor-made gasket solutions adjusted to specific projects. Together with Dr Werner Grabe with more ... More Information

Singapore Downtown alignment fixed

Singapore Downtown alignment fixedThe alignment of the third stage of the Downtown line connecting eastern suburbs of Singapore to Marina Bay has been revealed as 2 km longer than expected. The new ... More Information

Atkins to acquire PBSJ Corporation

Atkins to acquire PBSJ CorporationWS Atkins, the 11th largest design firm in the world, is to acquire PBSJ Corporation in an all-cash transaction, subject to regulatory and shareholder approvals. ... More Information

2010 TBM conference in London

2010 TBM conference in LondonThe TBM conference takes place on 28-29th October, 2010 at One Great George Street in the centre of London. An international team of prominent experts will discuss ... More Information

Crossrail qualification shortlists announced

Crossrail qualification shortlists announcedFor Contract 315, Connaught Tunnel, Crossrail has short-listed Vinci Construction, Hochtief-Murphy JV, BAM Nuttall, and VolkerFitzpatrick Barhale JV. For ... More Information

Thu Thiem immersed section complete

Thu Thiem immersed section completeObayashi has completed the immersed tube section of the 1.49 km-long Thu Thiem tunnel beneath the Saigon river on the east-west highway in Ho Chi Minh City. Each ... More Information

Chile mine rescue hole underway

Chile mine rescue hole underwayA Strata 950 raise borer capable of reaming up to 6 m-diameter holes over lengths of up to 1 km is drilling a 38 cm-diameter pilot hole some 702 m to a safe holing ... More Information

Melbourne desalination ant tunnels underway

Melbourne desalination plant tunnels underwayTwo Herrenknecht 4.8 m-diameter TBMs equipped with VMT guidance systems are at work on the fourth, and largest, desalination plant to be built in ... More Information

Normet global spares depot opens in Netherlands

Normet global spares depot opens in NetherlandsNormet Life Time Care has opened its global distribution centre for spare parts in Maarssen, The Netherlands with the objective of speeding deliveries ... More Information

City of Austin pre-bid meeting

City of Austin pre-bid meetingAll companies interested in bidding on the Waller Creek flood control tunnel and shafts project are invited to attend a vendor conference at 10.30h on 22.09.2010 in ... More Information

Shetlands tunnel manager appointment

Shetlands tunnel manager appointmentThe Shetland Islands Council in the north of Scotland is appointing a senior manager to oversee plans for four subsea tunnels over the next 20 years. The islands ... More Information

Sruwaddacon Bay tunnel alignment moved

Sruwaddacon Bay tunnel alignment movedShell has realigned the route of the proposed Corrib gas pipeline in County Mayo in order to avoid homes in the locality, and will reduce the gas pressure in ... More Information

Thames Water invites qualification

Thames Water invites qualificationThames Water Utilities Ltd is inviting organizations to qualify for its UK construction, operational and service registers, which form the basis for contract awards ... More Information

Tunnel Design & Construction comes to Switzerland

Tunnel Design & Construction comes to SwitzerlandThe inaugural Tunnel Design & Construction Europe conference tales place at the Crowne Plaza Zurich on October 25-28, 2010 following ... More Information

Catalogue of notable tunnel failures

Catalogue of notable tunnel failuresThe Civil Engineering and Development Department of Hong Kong SAR has updated its comprehensive catalogue of reported tunnel failures between 1964 and end-2008. ... More Information

Rosedale outfall commissioned

Rosedale outfall commissionedMcConnell Dowell contractors have commissioned the 3 km-long wastewater tunnel from Rosedale WWT plant to Wairangi Bay in Auckland, NZ. The 3.3 m-diameter Lovat RME131SE ... More Information

TBM tunnelling underway at Brisbane Airport Link

TBM tunnelling underway at Brisbane Airport LinkBoth Herrenknecht 12.45 m-diameter EPBs are now underway at the Airport Link tunnels in Brisbane, Australia. Starting from Clayfield in a westerly ... More Information

Bangalore Metro Rail tunnelling to start soon

Bangalore Metro Rail tunnelling to start soonWork has started on ramps and utilities diversion for the 3.4 km-long East-West underground section of Metro Rail alignment from MG Road to the Leprosy ... More Information

Self compacting concrete moulds from CBE

Self compacting concrete moulds from CBECBE Group has developed a unique method of segment production without vibration. During casting, the mould is inclined and self compacting concrete is ... More Information

CBE sponsors tunnelbuilder.com

CBE sponsors tunnelbuilder.comFrench group CBE, led by engineer Didier Lefebvre since 2005, has grown to208 employees at two major locations in Saint Avertin and L’Ile Bouchard, serving 30 ... More Information

Hindhead tunnel drivethrough

Hindhead tunnel drivethroughTen years after being let as a design/build contract, the 1.6 km-long twin tube A3 Hindhead tunnel in southeast England is set to open in summer, 2011. A ministerial ... More Information

Irish Rail names DART shortlist

Irish Rail names DART shortlistPrequalified construction consortia for Dublin's EUR2.5 billion DART underground railway have been named as BBI (Balfour Beatty Capital, BAM PPP Investments Ireland, ... More Information

EuroTAP reports on safety compliance failures in road tunnels

EuroTAP reports on safety compliance failures in road tunnelsRecent inspection of 26 tunnels in 13 countries under the European Tunnel Assessment Programme has revealed that almost 40% missed the ... More Information

Boomer arrives in style

Boomer arrives in styleRefurbishment of the Linth-Limmern hydro station is setting new standards in equipment design and delivery. Construction will take 250 workers nearly five years to complete ... More Information

International tunnel forum at InnoTrans 2010

International tunnel forum at InnoTrans 2010The international tunnel forum takes place 22-23 September, 2010 at InnoTrans, the transport technology meeting in Messe Muenchen, parallel with product ... More Information

Recovery Act funds Doyle Drive replacement

Recovery Act funds Doyle Drive replacementExcavation started this week on the first of four tunnels forming part of the Doyle Drive Replacement Project on the southwest connection to the Golden Gate ... More Information

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Tunnelling News

New game-changing tunnel boring, reef cutting 'meeting and beating' all expectations

UG2 reef at Bokoni is the target of the twin mobile tunnel boring and narrow reef cutter. Tunnelling will be done with the mobile tunnel borer for ... More Information

Mota-Engil CEO confirms winning bid for Santos-Guaruja tunnel

The company's subsidiary, Mota-Engil, has won the tender for the construction and operation of Brazil's first underwater tunnel, connecting the ... More Information

Metro Vancouver Utility Nearing Finish of $288M Annacis Water Tunnel

“Resilience is at the heart of this project,” said Nedim Alca, COWI's North America market director. “What makes this milestone so significant is not ... More Information

Fehmarnbelt: Danish tunnel portal nears completion

The work on the entrance to the Fehmarnbelt tunnel at Rødbyhavn on Lolland is almost complete. photo courtesy of The Fehmarnbelt Project. More Information

Final decision on airport tunnel 'now or never'

Alderman Jim Stevenson and City administrators are making a dramatic last push for the airport tunnel before construction on the new north/south ... More Information

Athens Metro Line 4 works to finish by 2029

The construction of Athens Metro Line 4 is progressing steadily, with the entire project ... Tunnel mistakenly excavated in Athens metro project. More Information

First trains on track to run through Metro Tunnel within three months

Melbourne's $15.5 billion Metro Tunnel could be switched on in as little as three months as construction wraps up at two CBD stations and trains ... More Information

Petersburg crews to begin tunnel project in response to ongoing flooding, damage - WRIC

As ongoing water issues have caused significant damage to infrastructure around Petersburg, the Old Towne neighborhood ... More Information

Intelligent optimization framework for tunnel construction

Tunnel construction forms the foundation of railway development and is essential for ensuring route continuity and operational efficiency. However, ... More Information

São Paulo positions TBM for next phase of Line 2-Green

A major milestone was reached on Monday (1 September) with the lowering of the cutter head of the tunnel boring machine (TBM) Cora Coralina... More Information

The 700-ton machine that'll dig NYC's Second Avenue subway extension

NYC has a new tunnel boring machine in its toolbox for the expansion of the line under 2nd ave. If you've never seen some BIG earth moving machines, ... More Information

Light at the end of the tunnel showing for Mount Washington transit project

The project is expected to be completed in October. New tracks finally emerge from the Mount Washington Transit Tunnel as a part of Pittsburgh ... More Information

Davao City Bypass South Tunnel hits breakthrough towards improved connectivity

The Construction Project with the ceremonial breakthrough of the southbound tunnel, marking the complete excavation from opposite ends of the ... More Information

Which companies are bidding for the US$2.3bn highway and tunnel contracts in Brazil?

The project in Brazil, as it will be the country's first underwater tunnel,” the person added. The project involves construction of a 1.5km tunnel ... More Information

US Northeast Rail Corridor Gets a Major Makeover with Tunnel and Bridge Replacements

This project is designed to replace tunnels severely damaged by Superstorm Sandy, ensuring smoother and more reliable service for Amtrak, NJ Transit, ... More Information

DPWH, JICA celebrate breakthrough of Southbound Tunnel in Davao Bypass

The event marked the successful connection of the tunnel's north and south ends. The ... More Information

Jacobs joins Ramboll on Marselis road tunnel project in Denmark

Danish Road Directorate senior project manager Michael Schmidt Vosgerau said: “It is a complex task to build a tunnel on one of the busiest access ... More Information

Planning continues for Midway Tunnel, Safe Streets for All projects

The Midway Tunnel project is a $13.4 million plan ... construction of a new overpass bridge and pedestrian and bicycle walkway above the tunnel. More Information

Four million tons of clay moved in HS2 excavation

Construction on HS2's second-longest tunnel started in October 2022. The rotating cutters cut away clay and other material at a rate of about 50ft ... More Information

Jacobs Has Design-CM Role on $640M Denmark Tunnel, With Ramboll as Key Consultant

Set to begin construction in 2028, Marselis Tunnel project is core component of the country's 10-year Infrastructure Plan 2035. By Emell D. Adolphus. More Information

Elon Musk's $760,000,000 plan to build underground tunnels beneath Houston, Texas

Elon Musk's next big construction plan from The Boring Company could build $760000 worth of tunnels beneath Houston to help with flooding... More Information

Kerala Moves Closer To Vizhinjam–Balaramapuram Tunnel Rail Project

The Kerala government is preparing to invite bids next month for the tunnel rail project linking Vizhinjam International Seaport with ... More Information

Norway's Ship Tunnel Project Under Threat as Costs Rise

New cost estimates suggest the ambitious project will far exceed its approved budget, raising questions about whether it will ever be built. More Information

Davao City Bypass southbound tunnel nears breakthrough

The Department of Public Works and Highways (DPWH) announced that the southbound tunnel of the Davao City Bypass Construction Project (DCBCP) is ... More Information

CA should pursue better alternatives to the costly Delta Tunnel Project Stocktonia

Governor Gavin Newsom is attempting to fast-track the construction of a massive, budget-busting water tunnel through the Delta to ship freshwater to ... More Information

Physical Origins of Shear Strength Fluctuations in Fault Gouges

Fault gouge is rock texture within fault zones that may include rock fragments (RF) and foliated structures. Previous studies have primarily focused on remould soils, the natural structure ... More Information

Webuild expands its role in high-speed rail projects

Four modern tunnel boring machines will be deployed to ensure precision and safety in complex geological conditions. Once completed, the old single- ... More Information

Hudson Tunnel Project advances as tunnel boring machines near completion

The Hudson Tunnel Project hit a key milestone as massive tunnel boring machines near completion, with delivery set for November. More Information

Nagdhunga tunnel in final stages of construction

If we look at the history of road construction and development in Nepal, there are various records of road construction starting from the Rana period. According to articles published in ... More Information

Boring of tunnel across Yellow River completed in China's Shandong

Constructed by using a "Shanhe" shield machine with a 17.5-meter excavation diameter, this double-deck, two-way, six-lane tunnel stands as the world's ... More Information

The £1.6bn plan for world's deepest underwater road tunnel leaving 'no room for error'

Opening of Rogfast tunnel under construction. The Rogfast tunnel will be the longest and deepest undersea road tunnel on Earth. (Image: SKANSA). A ... More Information

Tunnelling complete on NSW's Coffs Harbour bypass project

Tunnelling has been completed on the A$2.2bn (£1.1bn) Coffs Harbour bypass project in New South Wales, Australia, with the excavation of the third ... More Information

Veidekke acquires tunnel construction contract for Gothenburg's West Link Project

Veidekke has received a contract from the Swedish Transport Administration to build the Stora Hamnkanalen tunnel, a component of the West Link ... More Information

German Rail completes construction of Rastatt Tunnel

GERMAN Rail (DB) has completed civil works on the new 4270m twin-bore Rastatt Tunnel, a major component of the project to widen to four tracks the ... More Information

Final contracts signed for Eastern Freeway transformation

A huge amount of work is underway to build North East Link and upgrade the freeways – two tunnel boring machines are digging deep under Rosanna ... More Information

Progress on Sydney pipeline duplication

Bouygues Construction Australia and Rob Carr have launched a tunnel boring machine (TBM) on Sydney Water's Thornleigh pipeline duplication ... More Information

The latest plan to connect BART to downtown San Jose: One tunnel rather than two

When BART and Santa Clara Valley Transportation Authority first discussed plans to send trains rolling under downtown San Jose, transit officials contemplated a design with two tunnels ... More Information

Nashville Tesla tunnel: Here's when construction could start on the Music City Loop

Elon Musk's The Boring Company is currently in the design phase of constructing a tunnel connecting downtown Nashville to the Nashville ... More Information

World's longest underwater 'mega tunnel' to cost $46 billion but will halve 21-hour drive

Oddvar Kaarmo, the Rogfast project manager, cited additional motivation for the tunnel's construction: "The port at Mortavika is quite exposed and ... More Information