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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

Aker Wirth inclined TBM for Switzerland

Aker Wirth inclined TBM for SwitzerlandThe Limmern access tunnel at Tierfehd in the Swiss canton of Glarus has a diameter of 8.03 m and will rise at a constant gradient of 24% from 800 m ASL to ... More Information

Limerick tunnel opens to traffic

Limerick tunnel opens to trafficThe Limerick southern bypass is now complete, and opened to traffic last week when the 900 m-long immersed tube tunnel beneath the River Shannon was inaugurated. The ... More Information

More Google translations for tunnelbuilder

More Google translations for tunnelbuilderSpanish, Italian and Chinese have been added to our range of Google translations of tunnelbuilder.com and Newsfeed, making a total of 10 languages now ... More Information

Putzmeister worldwide market presence

Putzmeister worldwide market presencePutzmeister supplies the construction, mining and tunnelling industries with concrete, mortar and solids pumps and high-pressure cleaners in systems developed, ... More Information

Toronto opts for foot tunnel to airport

Toronto opts for foot tunnel to airportToronto Port Authority will start work in 2011 on the EUR33.5 million pedestrian tunnel beneath the Western Channel linking the Western Gap ferry docks at the ... More Information

New Robbins support system working at Qinling

New Robbins support system working at QinlingThe 16.6 km-long West Qinling rail tunnels will pass nearly 1.5 km beneath the mountain peaks, necessitating a complete rethink of the TBM support ... More Information

Happy holidays to all our readers!

Happy holidays to all our readers!All at tunnelbuilder wish you a great holiday! This year, more than ever, you have earned it! The industry has survived the recession in great shape, a tribute to ... More Information

Swedvent introduces new quiet fans

Swedvent introduces new quiet fansA new generation of Swedvent ventilation fans and ducting for tunnel construction has been announced by the Swedish manufacturer. Design changes have resulted in ... More Information

Lucerne bypass in design

Lucerne bypass in designThe Federal Council recently added the Lucerne bypass project to Module 3 of its programme to improve capacity on the road network. The design will be studied in depth and ... More Information

Work starts on India's longest road tunnel

Work starts on India's longest road tunnelWork on India's 8.8 km-long Rohtang tunnel began end-June, 2010 with completion scheduled in 2015, a duration of 63 months. Ms/SMEC International Pvt Ltd ... More Information

Ourense-Vigo AV line project approved

Ourense-Vigo AV line project approvedOption 3 of the feasibility study for the 54.6 km Ourense-Vigo high-speed line has been approved in which an 18 km-long central tunnel will be required from the ... More Information

Sarria tunnel excavation completed

Sarria tunnel excavation completedThe 3,118 m-long Sarria tunnel on the 4.96 km Sarria de Ter-Sant Julia de Ramis subsection of the Madrid-Barcelona-French border high-speed railway was completed on ... More Information

East Side Access moves ahead

East Side Access moves aheadA milestone on the long awaited East Side Access beneath the East River between Manhattan and Queens boroughs in New York was reached when a Robbins main beam TBM ... More Information

Specialized treatment plants from Fraccaroli & Balzan

Specialized treatment plants from Fraccaroli & Balzan For more than 40 years Italian manufacturer Fraccaroli & Balzan has been a world leader in providing wastewater treatment plants and mud ... More Information

New credit facility for Athens Metro extension

New credit facility for Athens Metro extensionOn 17.06.2010 Attiko Metro S.A. and European Investment Bank (EIB) signed an agreement covering a new credit facility of EUR150 million for design, ... More Information

Mühlhäuser launches customer-friendly website

Mühlhäuser launches customer-friendly websiteLong-time tunnelbuilder client Mühlhäuser has a new home page designed to provide information needed by customers in their project planning. Product ... More Information

NZ Transport Agency seeks registrants for Auckland job

NZ Transport Agency seeks registrants for Auckland jobRegistrations of interest are sought, at the latest by 21st July 2010, from suitably qualified and experienced consortia to deliver the design ... More Information

Book early for Hong Kong Tunnel Design & Construction conference!

Book early for Hong Kong Tunnel Design & Construction conference!Tunnel Design & Construction Northeast Asia takes place at Harbour Grand, Hong Kong 24-25 November, 2010. Register before 13 ... More Information

Largest Robbins TBM winning at Niagara

Largest Robbins TBM winning at NiagaraThe 14.4 m-diameter Robbins hardrock TBM is now two-thirds along the challenging alignment at Niagara, having broken a few records in between times. Contractor ... More Information

North American Tunneling show underway in Portland

North American Tunneling show underway in PortlandThe conference and exhibition organized by UCA of SME for Portland, Oregon started today at the Marriott Waterfront and will continue until ... More Information

New video detection management system from Traficon

New video detection management system from TraficonTraficon Flux collects traffic data, alarms and video images generated by video detectors in tunnels and on the open road, providing an interface ... More Information

First section of Gautrain Rapid Rail Link opens for World Cup

First section of Gautrain Rapid Rail Link opens for World Cup The first section of the 160 km/h Gautrain Rapid Rail Link, between Sandton Station and the OR Tambo International Airport in ... More Information

New heavy duty rock drills from Atlas Copco

New heavy duty rock drills from Atlas CopcoAtlas Copco has launched three heavy duty versions of its popular 1800-series hydraulic rock drill intended for face drilling in tough underground mining ... More Information

Breakthrough at Sellero tunnel on SS 42 in Brescia

Breakthrough at Sellero tunnel on SS 42 in BresciaSellero tunnel broke through on 18.06.2010 as part of the refurbishment work on the SS 42 Tonale-Mendola for the completion of the ... More Information

Madrid-Barcelona-French border high-speed railway

Madrid-Barcelona-French border high-speed railwayOn 17.06.2010 the TBM Gerundi completed the first 480 m of the 3.6 km-long Girona section on the Madrid-Barcelona-French border high-speed railway. ... More Information

Tunnel Design & Construction Europe

Tunnel Design & Construction EuropeThe Tunnel Design & Construction Europe conference to be held in Zurich, Switzerland 25th-28th October 2010 will bring together international industry ... More Information

Tunnel Design & Construction Europe

Tunnel Design & Construction EuropeInternational conference scheduled for Zurich, Switzerland 25-28th October 2010. Early birds can register by 25th June 2010 and get up to EUR465 off standard ... More Information

Hits and misses

Hits and missesTen years ago, when Internet advertising was in its infancy and mega-hits were the order of the day, we started to see a variation between hits and visits. In short, hits were running ... More Information

EN12101-3 certification for large Flakt Woods JM axial fans

EN12101-3 certification for large Flakt Woods JM axial fansFlakt Woods has achieved EN12101-3 certification for 400 degrees C for 2 hours (F400) on its range of large axial fans up to 2.8 m-diameter ... More Information

Meet Babendererde Engineers at NAT in Portland

Meet Babendererde Engineers at NAT in Portland Babendererde Engineers is an independent engineering company specializing in underground tunneling. Together with the sister company in ... More Information

Normet increases production capacity in Finland

Normet increases production capacity in FinlandNormet has extended and modernized its factory at Iisalmi, Finland, signalling its recovery from the recent economic downturn in mining and tunnelling ... More Information

Herrenknecht giant EPB for Italy

Herrenknecht giant EPB for ItalyThe largest TBM ever built, a 15.55 m-diameter Herrenknecht EPB, will be used on the extension of the A1 highway between Bologna and Florence in 2011. Read the press ... More Information

Success at Brightwater conveyance tunnel in Seattle, WA

Success at Brightwater conveyance tunnel in Seattle, WAThe JV JCT (Jay Dee Contractors/Frank Coluccio Construction/Taisei Corporation) has announced that their EPB TBM is stopped just short of the ... More Information

Cooling the Tube in London

Cooling the Tube in LondonFlakt Woods has been commissioned to produce a mix of bespoke ventilation products to help improve the airflow on station concourses and in tunnels on the London Tube. For ... More Information

See you at Intertunnel in Torino!

See you at Intertunnel in Torino!The tunnelbuilder team will be at Intertunnel in Torino, Italy on June 8-10 this week, so look out for us! We will be visiting our clients to ensure they are getting ... More Information

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Tunnelling News

IN MEMORIAM - OLIVIER VION (1962-2024)

Through the past decades, the energy and foresight to lead the management of the ITA International Tunnelling and Underground Space Association has been in the hands of Olivier Vion, a man ... More Information

Amtrak awards construction contract for East River Tunnel rehabilitation

The $1.6 billion project calls for demolishing all existing tunnel systems down to the liner, then restoring both tubes. During the project, one tube ... More Information

Strabag in €110 million deal to equip transalpine tunnel

Austrian contractor Strabag has won a €110 million (US$120 million) to equip a transalpine tunnel linking Austria and Slovenia... More Information

19 tunnel boring machines for Manila subway set

A close-up of the tunnel boring machine head, with a diameter of 6.9 meters. ... The first cutter head of the first tunnel boring machine (TBM), named ... More Information

$16 billion Gateway Tunnel Project gets federal funding boost after years of delays

The $16.1 billion project includes a new rail tunnel linking New York and New Jersey — and is set to be open by 2035 ... More Information

Preferred bidder announced for second tunnelling contract

The global consortium of WeBuild S.p.A, GS Engineering and Construction Australia and Bouygues Construction ... Tunnel Project, North East Link ... More Information

Bechtel Picked as CM for $12.7B Single-bore BART Extension

Officials with the VTA are aiming to begin major construction and tunnelling for the $12.7-billion BART Silicon Valley Phase II Extension Project next ... More Information

Stonehenge could be put on world heritage danger list over tunnel plan

The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recommended that Stonehenge be listed as ‘World Heritage in Danger’ due to the A303 upgrade scheme and is ... More Information

World’s longest railway tunnel to reopen after a year

The tunnel closed on 10th August last year following the derailment of a freight train, and SBB has since been pushing ahead with repair work... More Information

Afcons Infrastructure Wins Bid for Thane Tunnel Project

Afcons Infrastructure secures the L1 bid for a tunnel project in Thane, marking a significant milestone in infrastructure development. More Information

Kolkata Metro: D-Wall's Construction Work At Victoria Metro Station Is Advancing Swiftly

For the tunnelling work of the stretch from the Khidderpore to Park Street stretch of this Corridor, two Tunnel Boring Machines (TBM) will be deployed ... More Information

K2D Skøyen – Vækerø

Implenia has been awarded the contract for section K2D Skøyen - Vækerø, which is part of the entire Fornebu line that will be completed in 2030... More Information

Massey Tunnel replacement project hits design-build proposal stage

Tunnel replacement project has finally hit the design-and-build proposal stage. The Transportation Ministry announced Wednesday that three bid ... More Information

Barhale wins £36m East London sewer remediation

Thames Water has appointed Barhale to deliver essential remediation works on a Victorian gravity sewer as it passes above the Jubilee Line and Docklands Light Railway in East London... More Information

Reaping Rewards From Continuous Innovation

In boring underground tunnels for Malaysia's MRTs, Gamuda developed the world's first autonomous tunnel boring machine (A-TBM), utilizing in-house ... More Information

5 of the longest tunnels in the world and how they were built

Since the invention of the tunnel boring machine in 1853, engineers have used advanced technology to drill, blast, and bore into the earth. From ... More Information

Femern - inauguration of the first tunnel element

We are pleased to announce that H.M. King Frederik X will take part in the inauguration of the first tunnel element on the construction site on 17 June. H.M. King Frederik X will arrive at ... More Information

HOCHTIEF-MURPHY Joint Venture (HMJV)

A busy first half of the year on the HOCHTIEF-MURPHY Joint Venture (HMJV) Package 5 Headhouses & M&E contract on National Grid’s LPT Phase 2... More Information

Tesla Cybertruck escorts Boring Co's Prufrock-3 tunnel boring machine

The Boring Company's Prufrock-3 tunnel boring machine (TBM) recently completed a tunnel to Giga Texas, and in true Elon Musk fashion, ... More Information

Kazakhstan’s First Automobile Tunnel and Largest Bridge to be Completed this Year

As reported by the Kazakhstan’s Ministry of Transport, Kazakhstan’s first automobile tunnel through the Shakpak Baba Pass and the country’s largest bridge over the Bukhtarma Reservoir ... More Information

HRBT Expansion Project hits big milestone, could be on track for early completion

The tunnel boring machine, known as Mary ... construction of our two new bored tunnels,” said Project Director Ryan Banas... More Information

TBMs Pass Factory Test For Lesotho Highlands Water Project

A team of engineers and tunnel experts from the Lesotho Highlands Development Authority (LHDA) together with consultants and contractors working on the Polihali transfer tunnel recently ... More Information

Royal Cargo opts for Goldhofer heavy transport equipment

It has also been in action moving tunnel boring machines (TBM) for the Metro Manila Subway project ... machine part posed a significant challenge due ... More Information

Tunnel breakthrough on NI Water's £7.8M Portadown wastewater project

The tunnel boring machine excavated roughly 1,000m3 of material, which would have risen to 8,000m3 of spoil with a more traditional open-cut method. More Information

The Boring Company announces Cybertunnel at Tesla Texas HQ

In January, the company's latest tunnel boring machine (TBM), Prufrock 3, was first spotted near Tesla's Giga Texas. Prufrock-3 has ... More Information

How do you build tunnels and bridges underwater?

Underground construction usually uses powerful tunnel-boring machines to excavate soil directly. This machine is often called a mole for a reason. More Information

Five Huge New Construction Projects Coming To The US

A spokesperson for the project told Newsweek: "The Hudson Tunnel Project is a generational investment that is expected to create 95,000 new jobs and ... More Information

Chennai Metro Corridor 3: Adyar River Tunnel Work Hampered By Geological Setbacks

For the stretch between Greenways Road and Adyar, CMRL engaged two TBMs, 'Kauvery' and 'Adyar.' These machines were launched from Greenways Road ... More Information

French and Danish firms to build Valby 'cloudburst tunnel'

The underground tunnel will be 2,380m long and will be constructed as a drilled tunnel with an internal diameter of 3.4m. The tunnel will have the ... More Information

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