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Aurelia road to Savona

The 188 m-long Grana tunnel on the 5 km-long new Aurelia road section from Albisola to Savona in Italy has been completed using conventional methods. Meantime, TBM excavation of the 530 m-long Basci ... More Information

TBM Elaine at Rennes

TBM Elaine at Rennes

On 19.12.2014 TBM Elaine was named for excavation of an 8 km-long tunnel for the 13 km-long metro Line B in Rennes. The line, which will serve 15 stations and connect the southwestern and ... More Information

Waterview TBM resumes

In New Zealand, the huge Waterview TBM has been successfully turned and on 17.12.2014 resumed tunnelling, heading south on the second of the motorway tunnels. The machine will advance far enough to ... More Information

Atlas Copco rigs relaunch

The Boomer M-series drillrigs, the medium sized single and twin boom rigs favoured by tunnellers, have been the subject of a major upgrade. Read the press release and contact ... More Information

Evergreen line

The construction for the Evergreen line includes a 2 km-long bored tunnel with tunnel portals located in Port Moody and Coquitlam, Canada. The tunnel is being constructed with a 10 m-diameter TBM, ... More Information

Breakthrough under Lake Mead

Breakthrough under Lake Mead

On 10.12.2014 the hybrid TBM launched in 2011 holed the 4.5 km-long tunnel beneath the bed of Lake Mead. The project involves the construction of a system for collecting and transporting the waters ... More Information

Hydraulic design engineer wanted

Hydraulic design engineer wanted

International tunnelling recruitment specialist iPS is seeking a design engineer for heavy hydraulic systems to be located in France on a permanent basis, starting Q1/2015. See below for more ... More Information

Milestone for NY subway

The construction of the 86th Street Station cavern of the Second Avenue Subway in New York has been completed this week. Work began in August of 2011. This project, valued at EUR272 million ... More Information

A toast to our followers!

The management and staff at tunnelbuilder ltd send greetings and good wishes to all our readers and clients around the world at this festive time. While the international financial news has not ... More Information

Muhlhauser acquires Obermann

Muhlhauser acquires Obermann

Obermann becomes the first acquisition in the 100-year history of Muhlhauser, the Germany-based global market leader in tunnelling logistics. Read the press release and visit www.khmte.com. ... More Information

Terratec TBM for Laos

Terratec TBM for Laos

Terratec, after a successful test on 06.12.2014, has delivered a new Double Shield TBM to Seli Overseas S.p.A. of Italy, the tunnelling subcontractor for the Xe-Pian Xe-Namnoy Hydropower Project, ... More Information

Robust Robbins EPB for Seattle

Robust Robbins EPB for Seattle

On 17.11.2014 the 6.65 m-diameter Robbins TBM EPB began its journey south into the city of Seattle, Washington, USA. The machine, for contractor JCM North Link LLC (a JV of Jay Dee, Coluccio, and ... More Information

Sydney’s WestConnex motorway

Sydney’s WestConnex motorway

The WestConnex motorway is an EUR7.41 billion, 33 km continuous motorway which links Sydney’s west and south-west with the CBD (Central Business District), Sydney Airport and Port Botany ... More Information

Tunnelling/pipejacking engineers wanted

International recruitment specialist iPS is seeking engineers to fill a range of positions on a project commencing early next year in Melbourne, Australia. Click below for more, and visit ... More Information

Robbins webinars on record

Robbins webinars on record

Robbins have completed their very successful webinar series for 2014 and are making recordings available to tunnelbuilder readers until the end of the year. Click here for access and visit ... More Information

New Putzmeister scissor lift

New Putzmeister scissor lift

Putzmeister has announced Minelift 4 scissor lift platform with lifting height 4 m and 4 t load capacity for underground use. The machine is suited to both personnel and equipment lifting. Read the ... More Information

Six tunnels under Suez Canal

The EUR6.58 billion New Suez Canal Project features a new 72 km-length parallel branch of the 190 km-long Suez Canal from Deversoir to al-Balah which will cost EUR3.22 billion and six new tunnels to ... More Information

Intertunnel Russia

Intertunnel Russia

Intertunnel 2015, the 7th edition of the International Tunnelling Exhibition, will take place at the VDNKh in Moscow from 27 to 29 April, 2015. In a country as vast as Russia, tunnels are playing ... More Information

Opportunities at Fehmarnbelt tunnel

Another opportunity will occur for sub-contractors when Femern A/S offers two more major contracts in December, 2014. These concern the electrical and mechanical installations to be fitted inside ... More Information

Normet new generation

Normet new generation

Normet is introducing its latest generation of underground equipment at Bauma China in Shanghai. Apart from being endowed with improved overall ergonomics, the new machines are ready for Industrial ... More Information

Erbil to Haji Omaran

The Ministry of Housing and Reconstruction (MOHR) is building a dual carriageway connecting Erbil to Haji Omaran in Kurdistan, Iraq. The project comprises two main sections. The first 8.822 km ... More Information

Big auction in Caorso

Big auction in Caorso

Ritchie Bros’ upcoming auction in Caorso, Italy on 04.12.2014 currently features more than 1,400 heavy equipment items, tractors and trucks. All items will be sold to the highest bidders on ... More Information

Breakthrough in Paci tunnel

Breakthrough in Paci tunnel

On 06.11.2014, construction of the 1.7 km-long Paci tunnel was completed on the southbound carriageway of Italy’s A3 motorway, between Scilla and Campo Calabro. It is the longest tunnel among ... More Information

Managers sought by iPS

International recruitment specialist iPS is seeking qualified and experienced managers to fill the following tunnelling vacancies: 00542 Planning manager ... More Information

Montenegro highway financed

Montenegro highway financed

On 30.10.2014 the loan agreement was signed between Montenegro and the Chinese Exim Bank on financing construction of the first 41 km-long section Smokovac-Uvce-Matesevo of the 169.2 km-long ... More Information

Frejus tunnel holed

Frejus tunnel holed

On 17.11.2014 the TBM completed the 12,878 m emergency tunnel parallel to the existing Frejus tunnel (T4) and arrived at Bardonecchia, Italy, where it will be dismantled during the next three ... More Information

APAC conference

APAC tunnels and bridges conference will take place in Kuala Lumpur, Malaysia 15-16th April, 2015. Click for conference agenda. More from roohi.taragi@fleminggulf.com. 47/14. More Information

Ritchie Bros’ Caorso auction

Ritchie Bros’ Caorso auction

Ritchie Bros will hold an unreserved public auction of plant and equipment at their premises in Caorso, Italy on 04.12.2014, where some 900 plant items will be for sale. Click here and visit ... More Information

Guidance systems news from PPS

Guidance systems news from PPS

At Poltinger Precision Systems we strive every day to improve both ourselves, and our products. To suit our customers’ needs, and to implement their ideas for an even better PPS Guidance ... More Information

Val di Sambro holing

Val di Sambro holing

On 08.11.2014 breakthrough was achieved on the 3.9 km-long Val di Sambro tunnel on A1, between Firenze and Bologna. The contract was awarded to the JV Vianini Lavori/Toto/Profacta. Click it/21 ... More Information

Milan M4 metro update

On 11.11.2014 the final breakthrough in the first tunnel of Milan's M4 metro occurred at the Forlanini FS site. Excavations began last April, and to date 65 percent of the contract for the ... More Information

Meyco Versa launch

Atlas Copco has introduced its Meyco Versa mobile shotcreting unit suited to mid-size tunnels. Read the press release and contact michael.seitz@ch.atlascopco.com. 46/14 More Information

TBM turnaround at Waterview

TBM turnaround at Waterview

On 29.09.2014 the TBM Alice completed the southbound tube of the 2.4 km Waterview tunnels from Owairaka to Waterview. The tunnels will connect Auckland's Southwestern and Northwestern motorways. At ... More Information

Acimex segment handling at Riyadh metro

French manufacturer Acimex supplies vacuum devices for the handling of precast concrete segments in tunnels. Acimex vacuum erector and segment trolley will be used in the 10.16 m-diameter EPB ... More Information

Crossrail progress

Crossrail progress

On 20.10.2014 TBM Ellie finished her journey at Victoria Dock Portal in east London, completing the 900 m drive from Limmo Peninsula, near Canning Town, to Victoria Dock Portal in just six weeks, at ... More Information

Grand St Bernard safety tunnel

Grand St Bernard safety tunnel

On 20.10.2014 construction of Grand St Bernard safety tunnel (GSS) restarted, following agreement with the old contractor JV Condotte that only 11 of 23 cross passages originally intended will be ... More Information

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