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Normet Group appoints new CFO

Normet Group appoints new CFOFinnish national Riku Makinen has joined Normet Group as chief financial officer, a position he will take up on 1st October, 2011. He will be based in Switzerland and ... More Information

International section of Lyon-Turin approved

International section of Lyon-Turin approvedOn 03.08.2011 Cipe approved the preliminary design of the common French-Italian section of the Lyon-Turin railway system with construction in two ... More Information

Record 40 live bids at tunnelbuilder

Record 40 live bids at tunnelbuilder0n 11.08.2011 some 40 bids were open at tunnelbuilder Live Bids. Review at your leisure. 32/11. More Information

Breakthrough for Sants-La Sagrera tunnel in Barcelona

Breakthrough for Sants-La Sagrera tunnel in BarcelonaOn the Madrid-Barcelona-French border high-speed railway line, the 11.5 m-diameter Herrenknecht TBM Barcino reached the exit shaft on 26.07.2011 ... More Information

Spanish rail tunnels start

Spanish rail tunnels startOn 13.07.2011 NATM excavation of Callosa De Segura tunnel commenced as part of the 9.8 km-long San Isidro-Orihuela section of the Madrid-Castilla La Mancha-Valencia-Murcia ... More Information

Albertia tunnels excavated using NATM

Albertia tunnels excavated using NATMOn 29.07.2011 breakthrough was achieved in the bi-tube railway tunnel Albertia (4,777 m, 4,786 m) on the Legutiano-Escoriatza section of the ... More Information

Sparvo underway on Variante di Valico in Italy

Sparvo underway on Variante di Valico in ItalyThursday 28.07.2011 saw the launch of the world's largest TBM, the Sparvo machine built by Herrenknecht. Sparvo tunnel (2,564 m northbound, 2,600 m ... More Information

Robbins TBMs progress longest direct tunnel

Robbins TBMs progress longest direct tunnelAt India's remote AMR water tunnel, on 18.06.2011, the 10.0 m-diameter Double Shield Robbins TBM at the inlet end was launched. Launch was severely delayed ... More Information

Terzo Valico high-speed line restarts

Terzo Valico high-speed line restartsA contract agreement, value EUR500 million, has been reached between RFI and Consortium COCIV, headed by Impregilo, to restart work on lot 1 of the Terzo Valico ... More Information

Robbins EPB launch at Emisor Oriente

Robbins EPB launch at Emisor Oriente Mexico City's torrential rains and their ensuing floods have fast-tracked commissioning of one Robbins EPB at the country's most critical infrastructure ... More Information

BASF seals Clem 7 tunnel

BASF seals Clem 7 tunnelBrisbane's Clem 7 tunnel is 4.8 km long with a deepest point 70 m below sea level. To save time on waterproofing, contractor LBB JV selected a spray-applied polymer membrane ... More Information

Breakthroughs at Marche-Umbria quadrilateral

Breakthroughs at Marche-Umbria quadrilateralOn 20.07.2011 breakthrough was achieved in Genga municipality on the SS76 tunnels Valtreara (846 m with 388 m in cut/cover) and Gattuccio (294.50 m with ... More Information

Rome Metro Line C section completed

Rome Metro Line C section completedOn 08.06.2011, excavation and lining of the second tube of the Giardinetti-San Giovanni section of Metro Line C in Rome was completed by Herrenknecht EPB TBM No 2 ... More Information

Girona II tunnel excavation completed

Girona II tunnel excavation completed On 07.07.2011 the TBM Gerunda completed excavation of Girona II tunnel on the Madrid-Barcelona-French border high-speed line. For more click here and es/20. ... More Information

GIA Haggloader produces zero carbon dioxide emission

GIA Haggloader produces zero carbon dioxide emissionNorwegian tunnelling contractor Haehre Entreprenor is making fast progress with reduced carbon footprint at Holsbru Kraftwerk power project near ... More Information

Winning combination of skills at SBT

Winning combination of skills at SBTThe SBT consortium was formed in 2001 to provide rental TBMs and all required support and assistance to projects throughout the world. It brought together ... More Information

Innovation rewarded at Aker Wirth

Innovation rewarded at Aker WirthCreative businesses with vision and an appreciation of pioneering ideas sometimes make it into the list of the top 100 most innovative midsize companies in Germany. ... More Information

Zogno bypass start in Lombardy

Zogno bypass start in Lombardy Construction of Zogno bypass along the ex SS 470 in Bergamo province of Italy commenced in early-July. The new single carriageway road will be 4.3 km-long and will ... More Information

El Muron tunnel excavation complete

El Muron tunnel excavation completeBreakthrough of the 1,730 m El Muron tunnel on the 3.5 km Aspe-El Carrus section on the high-speed line to the east coast in Spain's Alicante province was achieved ... More Information

Galdakao tunnel excavation underway

Galdakao tunnel excavation underwayExcavation of the 1,830 m Galdakao tunnel on the 5.4 km section Lemoa-Galdakao of Vitoria/Gasteiz-Bilbao-Donostia/San Sebastian high-speed railway along the north ... More Information

Robbins TBMs score at Qinling railway tunnel

Robbins TBMs score at Qinling railway tunnelTwo 10.2 m-diameter Robbins main beam TBMs are returning record advances in predominantly phyllite and limestone on a remote railway tunnel beneath ... More Information

Advertisers of the year

Advertisers of the yearWhile tunnelbuilder is free to web and readership driven, somebody has to pay the tab. Our advertisers, who are readers themselves, are the people to thank. Amongst these, ... More Information

ES Rubber to supply Israel high speed tunnels

ES Rubber to supply Israel high speed tunnelsThe Tel Aviv-Jerusalem high speed railway tunnel project will be built by two joint venture contractors. One comprises Pizzarotti of Italy with Shapir of ... More Information

Newsfeed keeps you up to date

Newsfeed keeps you up to dateGet your daily tunnelling news fix from tunnelbuilder by clicking on the newsfeed main menu button. Updated continuously by Google in real time, the 10 most recent TBM ... More Information

New CEO for NFM Technologies

New CEO for NFM TechnologiesAlain Deleard is the new CEO of NFM Technologies, replacing Luc Devaux. NFM Technologies, which exports 75% of its products, exceeded EUR100 million turnover in 2010. The ... More Information

Putzmeister increases worldwide customer support

Putzmeister increases worldwide customer supportPutzmeister Iberica in Madrid has set up a 24/7 technical service hotline for emergencies. A qualified technician will be available to provide ... More Information

Rabat Tunnel des Oudayas open to traffic

Rabat Tunnel des Oudayas open to trafficOudayas tunnel is part of the Bouregreg valley development project in Rabat, capital of Morocco. The new route connects the river shore and the ocean coast, ... More Information

Salvador Injections solving sealing problems

Salvador Injections solving sealing problemsFor more than 30 years Italian company Salvador Injections has been working at strengthening, consolidation and waterproofing of wall structures. Over the ... More Information

RETC underway in San Francisco

RETC underway in San FranciscoThe much-anticipated RETC biennial tunnelling event starts at the Marriott Marquis in San Francisco on Sunday 19th June, 2011. The exhibition in the Yerba Ballroom is a ... More Information

GIA Swedvent fans for China

GIA Swedvent fans for ChinaThe new generation of Swedvent fans features improved silencers filled with processed mineral wool to reduce high frequency sounds. The results are dramatic over the whole ... More Information

Saint-Oyen bypass approved

Saint-Oyen bypass approvedAnas has approved the design for the 4,403 m Etroubles and Saint-Oyen bypass on road SS 27 to the Gran San Bernardo pass in Valle d'Aosta. The project includes the ... More Information

Palude excavation holes with difficulty

Palude excavation holes with difficultyOn 18.05.2011 CMC (Ravenna) broke through the south bore of the 1,166 m Palude tunnel, Maxi lot 1 of the Quadrilatero-Marche-Umbria. Several difficulties were ... More Information

TBM progress on Barcelona drives

TBM progress on Barcelona drives On the Madrid-Barcelona-French border high-speed railway line, Herrenknecht TBM Gerunda reached the Parc de la Devesa shaft on 17.05.2011, after boring 885 m of the ... More Information

World's highest road tunnel

World's highest road tunnelOn 25.05.2011 work began on the 7 km-long Trola tunnel in south-western Sichuan province on the 2,415 km-long Sichuan-Tibet highway in China. At a maximum altitude of ... More Information

Big Robbins breaks out at Niagara

Big Robbins breaks out at Niagara The 14.4 m-diameter Robbins Main Beam TBM, the largest of its type ever produced and affectionately known as Big Becky, has broken through at Niagara. The 10.143 ... More Information

Senior engineers required for Toronto Transit expansion

Senior engineers required for Toronto Transit expansionThe Toronto Transit Commission (TTC) keeps Toronto moving with a dedication to service, safety and convenience that is unparalleled in the ... More Information

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Tunnelling News

Single-Bore Tunnel Method Chosen for BART Silicon Valley Phase II

This decision allows VTA to advance project design towards 60%, stay on a critical path to tunnel construction and meet the projected revenue service ... More Information

Boring Co. begins 'controlled blasting' for Nashville tunnel at TN capitol

The Boring Co. has started excavation work at a state-owned parking lot on Rose Parks Boulevard for the Music City Loop project Wednesday, Aug. 13, ... More Information

TBM arrives in Montreal for delayed metro extension project

A custom-built tunnel boring machine (TBM) has arrived in Canada for use on a 6km extension of the Montreal Metro... More Information

Spain Confirms Feasibility of €8.5 Billion Morocco-Europe Tunnel

The study was conducted by German company Herrenknecht, the world leader in tunnel boring machines, at the request of the Spanish government's ... More Information

TxDOT spends $748M to burrow bus-size tunnels under Central Austin

The first tunnel boring machine will be deployed near ... Industry experts say tunnel boring machines typically advance about 50 feet per day. More Information

6 TBMs on Duty on the 27-Kilometer Line in Körfezray

Two of the six Tunnel Boring Machines (TBMs) that will serve in the first 27-kilometer phase are actively excavating tunnels, while the ... More Information

Construction on HS2's Euston tunnel will start 'fairly soon', says rail minister

Construction on the HS2 tunnel from Old Oak Common station to Euston station will start “fairly soon”, the rail minister has said... More Information

Blue Line Extension TBM Arrives at Port of Montreal

Railway Track and Structures Construction site of the future Vertières station (Pie-IX) in June 2025. Caption and photo courtesy of STM. MONTREAL - The tunnel boring machine (TBM) ... More Information

Tunnel break through milestone for Mt Messenger Bypass project

A 110 tonne excavating machine, called Hinetūparimaunga, has broken through at the northern end of the project's 235 metre-long tunnel ... More Information

$3.9 billion tunnel and bridge link for VA

Costing around $3.9 billion, the Hampton Roads Bridge-Tunnel (HRBT) upgrade Expansion project for Virginia will improve traffic flow for a key ... More Information

Extended North Tunnel Flood Mitigation Project Receives $18.2 Million in State Funding

The funding advanced by the board includes a $17.2 million loan and $1 million grant for the construction of the mile-long tunnel, which will divert ... More Information

Gateway Project faces new uncertainty amid government shutdown

Federal funding for the $16B Hudson Tunnel Project, aka Gateway, has been paused during the government shutdown, sparking political backlash. More Information

Tunnel Boring Machine Emily Passes Key Factory Test for DC Water Potomac River Tunnel Project

Tunnel boring machine (TBM), Emily. This test confirms that Emily is ready to begin excavating the southern leg of the Potomac River Tunnel — a ... More Information

Sydney Metro West achieves world-first in tunnelling technology

Sydney Metro West has achieved a world-first in tunnel construction with a Lining Erector Machine (LEM) successfully being used to line the mined ... More Information

Gateway construction continues despite Trump's claim of termination

Tutor Perini, the general contractor on the Manhattan Tunnel Project, confirmed construction activity is currently continuing as planned... More Information

Tunnelling complete for Annacis water supply project

Metro Vancouver has completed the tunnelling phase of the $450 million Annacis Water Supply Tunnel, which will complete in 2028... More Information

Santa Clara VTA confirms single tunnel plan for BART extension

With VTA now owning the tunnel boring machine, the agency assumes full responsibility for its performance, agency officials said. To manage the risk, ... More Information

Chennai: Tunnel Boring Machine Vaigai achieves breakthrough at Mandaveli Metro Station

CHENNAI: The Chennai Metro Rail Limited (CMRL) on Saturday achieved a major milestone in Phase II tunnelling works, as Tunnel Boring Machine (TBM) ... More Information

Trump 'terminates' $16 billion Hudson River tunnel project linking N.J. and N.Y.C.

President Trump said funding for the $16 billion Gateway Tunnel project is "terminated" at a press conference. New Jersey officials said they will ... More Information

$676 million underwater tunnel for India

The project is expected to cost around $676 million, with a Detailed Project Report (DPR) having now been completed. India's road transport network is ... More Information

€1.4 billion Belgian tunnel project approved

The first phase of the €1.4 billion project for Belgium’s new Limburg Noord-Zuid link has been approved. Construction should commence in 2027 on the project, which will form a section of ... More Information

Tunnel boring machine S-639B achieves breakthrough under Kanpur Metro Phase I Project

The package KNPCC-06 involves design and construction of a tunnel through TBM, cut and cover tunnel, underground ramp from Kanpur Central end of ... More Information

Lawmakers propose construction of undersea tunnel to link Luzon and Visayas

Several lawmakers from the Visayas region are proposing the construction of an underground tunnel that will serve as a permanent land connection ... More Information

Oman-UAE rail project hits major milestone with start of tunnel excavation

Tunnel excavation has begun in Oman's Al Hajar Mountains, marking a major milestone for the cross-border Oman-UAE Railway... More Information

Engineering the depths: innovative tunnelling for hydropower projects

Major schemes in Austria, China, and Germany are applying advanced underground construction techniques for hydropower projects. More Information

New tunnel, new standard: Silvertown project showcases innovation in surface protection

Originally approved in 2018, construction of the tunnel began in March 2021. In September 2023, following the completion of tunnelling works, ... More Information

Metro Manila Subway Project: DOTr launches third tunnel boring machine

Dubai: The Department of Transportation (DOTr) has launched a third tunnel boring machine (TBM) for the Metro Manila Subway Project (MMSP), ... More Information

Skanska JV wraps up $450M Baltimore tunnel nearly 2 years early

A joint venture has reached substantial completion on the $450 million Howard Street Tunnel Project in Baltimore nearly two years ahead of the original completion date, according to a ... More Information

Work continues on NYC megaprojects, despite $18B federal funding pause

Contractors on two of New York City’s largest infrastructure projects will keep digging, but they might glance over their shoulders toward Washington... More Information

HS2 Chipping Warden tunnel project moves step forward

HS2 Ltd An aerial view of the HS2 tunnel construction at Chipping Warden. A road HS2 Ltd. The 1.55 mile (2.5km) Chipping Warden tunnel will be ... More Information

First of three Tunnel boring machines on way to SA as beams go up for tram overpass

The first of three tunnel boring machines that will be used to complete the northern and southern tunnels project is on its way to SA as part of a ... More Information

Chennai Metro Rail's TBMs to begin tunneling between Thiruvanmiyur and Indira Nagar

Chennai Metro Rail begins tunnelling work in challenging stretch for phase II project, facing obstacles due to hard rock... More Information

Custom lifting gantry aids TBM removal - Construction Briefing

The four TBMs excavated the 8.4 mile (14 km) Northolt Tunnel section. Two went in each way, digging a pair of tunnels from both ends towards each ... More Information

Tunnel construction begins on Barskoon — Bedel road in Issyk-Kul region

According to the project, two tunnels, 5,340 and 3,840 meters long, respectively, will be built at Sook and Ashuu-Suu passes. They will be among the ... More Information

China debuts world's mightiest centrifuge, unleashing ultra-intense gravity

China leads the way in shield tunnelling machine development · Shield machine of south line of Yellow River tunnel starts boring in Jinan · A close ... More Information

Boring Company Launches Global Operations Control Center in Bastrop, Texas

The Boring Company has officially opened its new Global Operations Control Centre in Bastrop, Texas, the tunnelling start-up announced on X... More Information

Port of Longview Lands $35.9MM Federal Loan for Rail Expansion

Active Construction on New Hudson Tunnel Project Supporting Domestic Jobs and Economic Output ... Bridges/Tunnels, Class 1, Freight, Ports, Track ... More Information

TBM Parvati Achieves Breakthrough At Kakadeo Station Of Kanpur Metro Line 2

Brief Scope: Design and Construction of TBM Tunnel, Cut and Cover Tunnel, ramp after Double Pullia, ramps in Agriculture Depot for main line and ... More Information

Howard Street tunnel reopens ahead of schedule, boosting Baltimore's freight capacity

The Howard Street Tunnel has been reopened after being out of service since February 2025.The nearly 130-year-old tunnel extends north from Camden Yards to the Mount Royal Station and is ... More Information