Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive - News

Featured News

Putzmeister customized shotcrete solutions

Putzmeister customized shotcrete solutionsWith concrete spraying reaches of up to 17 m and capacities up to 30 cu m/h, little wonder that Putzmeister machines are a common sight in the world's ... More Information

Aker Wirth TBMs for Koralm

Aker Wirth TBMs for KoralmAker Wirth will supply contractor Strabag AG with a pair of 9.93 m-diameter telescopic shield TBMs for the 20 km-long KAT 2 section of the 32.5 km-long Koralm tunnel on the ... More Information

Mine Radio Systems at Big Event

Mine Radio Systems at Big EventMRS will be presenting its Centrian Ethernet over leaky feeder solution at this year's Big Event in Timmins, Ontario on 18-19th May. The system provides integrated ... More Information

Tunnels and ITS symposium

Tunnels and ITS symposiumTunnels are currently the main application for ITS, intelligent transport systems. A new symposium scheduled for June 15-16th in Bergen, Norway will discuss the development ... More Information

Inaugural Expomatec fair for Madrid

Inaugural Expomatec fair for MadridExpomatec, the Spanish infrastructure, civil works, extraction and mining machinery fair, takes place 24-28th May at Feria de Madrid. This, the first in a series ... More Information

BASF additives aid concrete set at Limberg II

BASF additives aid concrete set at Limberg IIThe Limberg II hydro generating station in the Hohe Tauern high mountain range of Austria features two huge rock caverns with associated tunnel system. ... More Information

Follow the money in Brussels

Follow the money in BrusselsThe TEN-T info day on 29.06.2011 in Brussels will present the priorities for the EU transport calls for rail, river and motorway construction. Participants will be ... More Information

Early TBM completion at Lyon metro Line B

Early TBM completion at Lyon metro Line BOn 23.04.2011 Herrenknecht TBM Agata at Lyon metro Line B reached its exit shaft, some two months ahead of schedule. 300 m of the alignment is beneath the ... More Information

Unique Robbins hybrid EPB away at Sleemanbad

Unique Robbins hybrid EPB away at SleemanbadOn-site first time assembly of a 10 m-diameter hybrid EPB has been completed at the 12 km-long Sleemanbad carrier canal in Madhya Pradesh, India. The ... More Information

GIA upgrades underground cable bolter

GIA upgrades underground cable bolterThe latest mechanized grouting and cable insertion system (MEGSIS) from Swedish manufacturer GIA offers a guillotine effect cable cutter, improved piston pump ... More Information

Breakthrough for Almendral tunnel

Breakthrough for Almendral tunnel On 07.04.2011 excavation was completed on the 1.1 km-long single-tube, twin track Almendral tunnel, the major feature of the 1.67 km-long Barranco de ... More Information

Girona II tunnel excavation started

Girona II tunnel excavation startedOn 06.04.2011 the TBM Gerunda started excavation of Girona II tunnel on the Madrid-Barcelona-French border high-speed line. It will drive 1,565 m from the new ... More Information

Live bids sets record

Live bids sets recordMore than three dozen live bids are currently listed at tunnelbuilder, the largest number since this unique service was inaugurated three years ago. Live bids allows readers to ... More Information

Robbins EPB scores New Record in Zhengzhou

Robbins EPB scores New Record in ZhengzhouIn the Chinese city of Zhengzhou, soft ground tunnelling has made a speedy entrance. One of two 6.3 m-diameter Robbins EPBs at Zhengzhou metro Line 1 has ... More Information

Belgrade interceptor personnel contract renewed

Belgrade interceptor personnel contract renewediPS Personnel, who supplied a core of experienced tunnellers to assist in management and training at the Belgrade interceptor project in Serbia, have ... More Information

Espoo metro extension funded

Espoo metro extension funded On 01.04.2011 Lansimetro of Finland signed a 30 year loan agreement with the European Investment Bank (EIB) and the Nordic Investment Bank (NIB) to fund the EUR800 ... More Information

North-end excavation of Udaliatz underway

North-end excavation of Udaliatz underwayOn 18.03.2011 excavation started from the north end of the twin track Udalaitz tunnel on the Mondragon-Elorrio section on the new Vitoria-Bilbao-San ... More Information

Himalayan headrace excavation commenced

Himalayan headrace excavation commencedThe specially designed 6.18 m-diameter Seli DSU TBM has completed its first run in the Kishanganga tunnel project. The TBM, designed to bore through difficult ... More Information

Steel fixers and carpenters required

Steel fixers and carpenters requiredIPS has an urgent requirement for experienced and qualified construction workers for a two year contract in the south of England starting in two weeks time. If ... More Information

Bressanone ring road opening in South Tyrol

Bressanone ring road opening in South Tyrol On 16.04.2011 the first lot of the Bressanone and Varna ring road will be inaugurated, two days before its official opening to traffic. The new 4.7 ... More Information

Herrenknecht micros win in Warsaw

Herrenknecht micros win in WarsawA pair of Herrenknecht AVND micro machines has completed 16 difficult drives totalling 5.86 km for the new Warsaw wastewater treatment system. Pipe jacking up to 36 ... More Information

Intertunnel 2012 back in Turin

Intertunnel 2012 back in TurinWith two of the biggest cross-border tunnelling projects in the offing on the Lyon-Turin and Brenner lines, Italy is underpinning its position as Europe's ... More Information

RETC for San Francisco

RETC for San FranciscoThe biennial Rapid Excavation & Tunneling Conference takes place June 19-22nd, 2011 at the Marriott Marquis in San Francisco, CA. Field trips to New Irvington tunnel and ... More Information

Koralm tunnel gets underway

Koralm tunnel gets underwayOn 28.03.2011 government officials and provincial governors of Styria and Carinthia attended the groundbreaking ceremony for construction of lot KAT 1, a 20 km-long ... More Information

Daetwyler for reliable sealing systems

Daetwyler for reliable sealing systemsDaetwyler is a leading provider of engineered rubber profiles used in the sealing of tunnels, offering a wide range of reliable gaskets designed to match ... More Information

Shotcrete 2012 - call for papers

Shotcrete 2012 - call for papers The Shotcrete 2012 conference and exhibition is scheduled for the Alpbach Conference Centre, Tyrol, Austria from 12.01.2012 to 13.01.2012. Main language will be ... More Information

Herrenknecht celebrates Gotthard completion

Herrenknecht celebrates Gotthard completionWhen 9.43 m-diameter Herrenknecht gripper TBM Heidi mined the last few metres of rock in the west tube of the Gotthard base tunnel between Faido and ... More Information

Fastest marine rail tunnel

Fastest marine rail tunnel The 10.8 km-long Shiziyang tunnel crossing the Pearl River estuary in south China's Guangdong province is designed for trains travelling at 350 km/h. Apart from being the ... More Information

Robbins Double Shield sees the light in Sochi

Robbins Double Shield sees the light in SochiIn early March 2011, the 6.2 m-diameter Robbins Double Shield TBM crossed the finish line in Sochi, Russia. The machine completed a 4.5 km-long section ... More Information

BASF expands in Norway

BASF expands in NorwayBASF is investing EUR1 million in a new production plant for alkali-free accelerators at Granerud, Norway. The product, launched in 2010, increases the early strength of the ... More Information

Job opportunities in Central America

Job opportunities in Central AmericaiPS has the following vacancies in Central America for a highway construction project using drill/blast techniques. Contract duration is expected to be a minimum ... More Information

Gotthard base tunnel final breakthrough

Gotthard base tunnel final breakthroughOn 23.03.2011 at 12.20 pm miners excavated the last few metres of rock in the west tube of the Gotthard base tunnel between Faido and Sedrun. Coming some five ... More Information

Geodata - turning data into information

Geodata - turning data into informationThe GEODATA group supplies integrated, IT-based solutions and services for monitoring, engineering surveying and information technology. Backed by 20 years of ... More Information

Extension of line B of Lyon metro

Extension of line B of Lyon metroOn 02.03.2011 Herrenknecht TBM Agata entered the future Oullins station of the extension of Line B of Lyon metro. The event signalled completion of excavation of the ... More Information

Excavation starts on Avraysa tunnel beneath Bosphorus

Excavation starts on Avraysa tunnel beneath Bosphorus On 26.02.2011 Turkish Prime Minister Recep Tayyip Erdogan attended the groundbreaking ceremony of the 5.4 km-long, double-deck Avraysa tunnel ... More Information

Fiasco breakthrough in Calabria

Fiasco breakthrough in CalabriaOn 23.02.2011 tunnelling subcontractor Cipa SpA broke through in the Fiasco road tunnel (521 m, 482 m), lot DG21 on the SS106 Jonica in Calabria, Italy bringing the ... More Information

Page:

Tunnelling News

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

Progress update on the Tunnel Boring Machine for National Grid

Following its launch in May this year, Buddug, the Eryri VIP tunnel boring machine (TBM) is making good progress digging the tunnel which will ... More Information

Mumbai-Ahmedabad Bullet Train Project Clears Major Hurdle

After months of delay, the tunnel-boring machine stuck in China is being shipped to India, clearing the path for underground construction of the ... More Information

Bright lights: This Las Vegas tunnel is getting a major upgrade

Construction is underway on Desert Inn Road between Paradise Road and Joe W Brown Drive as part of a $9.2 million improvement project on Friday, ... More Information

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone

Panama Canal Tunnel Boring Machine Crosses Under the Canal, Marking a Milestone on Metro Line 3. Auto-dubbed. 398 views · 6 hours ago ...more ... More Information

Major breakthrough achieved in Mumbai-Ahmedabad bullet train tunnel construction

Mumbai: A breakthrough was achieved for a 4.88 km-long tunnel between Shilphata and Ghansoli for the... More Information

New Austrian tunnelling method achieves milestone breakthrough in BKC-Shillphata undersea tunnel project

In a significant milestone for the ambitious undersea tunnel project between BKC and Shillphata, g Method (NATM) has ... More Information

World's Longest Railway Connection Makes Construction Breakthrough

The Brenner Base Tunnel, built deep beneath the Alps, is set to reshape freight and passenger transport across Europe... More Information

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