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Istanbul Strait road tunnel

Tunnel boring under the Bosphorus as part of the Eurasia Tunnel Project (Istanbul Strait Road Tunnel) began on 19.04.2014 with a ceremony at Haydarpasa construction site. The 3,300 t TBM has been ... More Information

Marieholm tunnel

On 04.06.2014 the Swedish road and railway authority Trafikverket signed with the JV Zueblin/Boskalis the design and build contract for the Marieholm tunnel project. The tunnel, 30 m-wide and 10 ... More Information

More Terratec orders

Asia-Pacific based manufacturer Terratec has announced details of TBM sales to Turkey and Laos, significantly expanding the company’s current geographic spread. Read the press release and ... More Information

Central Subway Robbins TBM holes out

The first of two Robbins TBMs working on San Francisco Central Subway has holed out. Read the blog and visit www.robbinstbm.com. 23/14. More Information

Ground conditioning for EPB TBMs Webinar

The Robbins Company is hosting a complimentary hour-long web seminar on 18th June, 2014 at which experts from Robbins, BASF and Mapei will discuss available ground conditioning techniques and ... More Information

Geodata moves up

Geodata Group, based in Leoben, Austria has stepped up to sponsor our flagship website tunnelbuilder.com. A tunnelbuilder client for many years, Geodata has grown along with the tunnelling industry. ... More Information

Australian meeting registration

Time to register for the Australian Tunnelling Conference taking place in Sydney 17-19 September, 2014. Click here for list of papers and online registration, or visit www.ausimm.com. 22/14. More Information

Nova Subida da Serra

The Nova Subida da Serra (NSS) in Brazil comprises five lots and involves a new 20 km-long road section for which 15 km of the existing BR-040 will be doubled and a 4,640 m tunnel at Petropolis will ... More Information

Mesaimeer tunnel underway

The construction of Mesaimeer tunnel in Qatar started on 20.05.2014 and will be complete by early 2017. The Mesaimeer tunnel for surface and ground water is one of the key drainage projects within ... More Information

Bolzano ring road alignment

On 26.05.2014 the provincial government approved the technical characteristics of the future Bolzano ring road alignment in Italy. The construction of the EUR368million project will be divided into ... More Information

Peshraw nears completion

In March this year lighting, ventilation, security, and surveillance for Peshraw tunnel (2390 m) under Mount Azmar, Sulaymaniyah city, Iraq, Kurdistan Region, were tested, and installation and ... More Information

China President visits CREG

President Xi Jinping has visited the CREG TBM assembly factory in Zhengzhou. More Information

Call for Papers for IWMA

The 14th International Water Mist Conference, Istanbul, 22-23 October 2014, will be of interest to those responsible for selecting fire protection as well as researchers/scientists who wish to be ... More Information

Deep driller required for Chile

International recruitment specialist iPS has posted a vacancy for a Spanish-speaking vertical drilling supervisor for a 6 m-diameter water shaft in Chile. Read the details below and contact ... More Information

CREG giant boxjack underway

TBM manufacturer CREG has supplied the world’s largest rectangular boxjacking EPB machine to a project in Zhengzhou, China. Read the press release and visit www.crectbm.com. Contact ... More Information

Repairing the SR99 TBM

Seattle Tunnel Partners, WSDOT’s contractor for the SR 99 tunnel project, has started building the circular pit to access and repair their TBM. Rigs have begun work to install the 75 piles ... More Information

Robbins OFTA success in Ohio

A Robbins Double Shield TBM broke through at the Black River Tunnel Project on 29.04.2014 in Lorain, OH. The 1.7 km-long EPA-mandated tunnel will prevent heavy rains from triggering sewage overflows ... More Information

Albula dualling approved

The license has been approved for the construction of the new Albula rail tunnel on the Thusis-Tirano section, part of the UNESCO World Heritage Site since 2008. The existing Albula tunnel, opened ... More Information

Samoter International Innovation Award

The companies CIFA, Gei-Impianti, Mantovani Benne Mbi, MB Spa, Nord-lock and Venieri Spa have each secured a Samoter 2014 International Innovation Award. The prize is awarded to manufacturers who ... More Information

Success at Samoter

The triennial Samoter exhibition is underway in Verona, Italy at a time when sales of construction machinery are increasing by 20 percent year on year, signalling an end to the recession in the ... More Information

Twenty years of Channel Tunnel

As the Channel Tunnel celebrates the 20th anniversary of its inauguration, CBE Group reflects upon its own origins in 1987 as supplier of concrete segment manufacturing facilities for Sangatte at ... More Information

Welcome to Brazil

ES Rubber, producers of segment gaskets and fixings, is entering the South American market and invites all tunnelbuilder readers to visit their stand number 40/41 at WTC Brazil 09-15.05.2014. Click ... More Information

Robbins’ triumph at Pahang Selangor

Three Robbins 5.23 m-diameter main beam TBMs with continuous conveyor systems have completed the 44.6 km-long Pahang Selangor raw water tunnel in Malaysia. First use outside Japan of a fast setting, ... More Information

tunnelbuilder leads the way

As the recession lifts in the US and Europe, tunnelbuilder readership is growing rapidly, indicating over 1 million visits for 2014. During March, tunnelbuilder.com alone registered 25,027 unique ... More Information

Greater accuracy from Sandvik

Sandvik TCAD+ is an aiming tool designed for accurately executing pre-designed drilling plans. It features face drilling, long hole drilling and bolting hole plans on the drillrig screen. ... More Information

Victoria through into Whitechapel tunnels

On 04.04.2014, 150 m-long TBM Victoria broke through into Whitechapel tunnels to reach the 32 km (over 75 percent) of Crossrail tunnelling completed. Victoria began the drive at Limmo Peninsula in ... More Information

Crossrail TBM moved to Limmo

Two months after completing her 2.7 km tunnel drive from Pudding Mill Lane to one of Europe’s largest mined caverns at Stepney Green, the TBM Jessica made a 5 km journey to her next launch ... More Information

Top people wanted for Doha

International employment consultants iPS have started their recruitment drive for Doha Metro project in Qatar by posting six top management and engineering vacancies. For all positions we are ... More Information

NFM TBM for Riyadh

NFM Technologies of France will supply a 10.16 m-diameter TBM to excavate the 6 km-long underground section of the proposed Metro Riyadh Line 3 in Saudi Arabia. Read the press release and visit ... More Information

CEAR – Compact electricity for tunnels

Electricity feeds to key equipment such as TBM and utilities is a focus of attention at construction sites, to ensure continuity of excavation and production. The necessary switchgear and MV/LV ... More Information

Tunnel expo for Turkey

The first Tunnel Expo Turkey will be held in Istanbul, Turkey from 28-31st August, 2014 sponsored by the Turkish Tunnelling Society. For more visit www.tunnelexpoturkey.com and www.tunelder.org. ... More Information

Malpensa rail link

The railway project to connect Terminal 1 and Terminal 2 of Malpensa Airport in Italy will cost EUR115 milllion, funded by Regione Lombardia (EUR31 million), Government (EUR45 million), EU (EUR23 ... More Information

SaMoTer for Verona

The triennial earthmoving and building exhibition takes place once again at Veronafiere, Verona, Italy from 8-11th May, 2014. Co-located with Asphaltica, SaMoTer has a complete section devoted to ... More Information

Early start for Riyadh metro

On 03.04.2014 construction of Riyadh metro system commenced with excavation of F G1 station, at King Khaled International Airport, two months ahead of schedule. The project will build line 4, ... More Information

Fehmarnbelt tenders

Femern A/S has received 17 tenders from nine major international contractors prequalified for the four major construction contracts for the fixed link across the Fehmarnbelt. Some of the consortia ... More Information

Breakthrough in Cesana tunnel on SS 24

On 01.04.2014 breakthrough was achieved at the1,840 m-long Cesana tunnel, part of the EUR131 million upgrading project of trunk road SS 24 Monginevro, section Cesana-Claviere. Work was interrupted ... 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

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