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Final week to register for HS2’s biggest ever supply chain event

With just two weeks to go until its biggest ever ‘Meet the Contractor’ event launches, High Speed Two (HS2) Ltd is making a final call for UK businesses to register their ... More Information

Sela Pass 'Main' Tunnel Completed

On the 14/10/2021 Defence Minister  Rajnath Singh,  carried out the last blast of the main 1555m long Sela tunnel (T2) at a ceremony in the West Kameng District of Arunachal Pradesh. ... More Information

Cross River Rail Roadheaders break through ahead of schedule

Two 115-tonne roadheaders recently broke through into the cavern of the future Boggo Road station two months ahead of schedule, marking yet another significant milestone for the transformational ... More Information

HS2’s first Midlands tunnelling machine name unveiled

HS2’s first Midlands tunnelling machine name unveiled

The name of HS2’s first TBM on the northern section of Phase One has been unveiled. During a ceremony on the construction site, which is managed by HS2 joint venture Balfour Beatty VINCI, the ... More Information

TBM naming contests for Eglinton Crosstown West and Scarborough Subway Extensions TBMs

On 19/10/2021 Metrolinx introduced their naming contest for the 3 giant machines that will dig the tunnels for the Eglinton Crosstown West Extension and Scarborough Subway Extension in the Greater ... More Information

Latest News from Grand Paris Express Project

Latest News from Grand Paris Express Project

Line 15 East  - Over night between the 6th and 7th of October, the head of TBM Sarah (almost 150 t) was transferred from the Finot structure in Saint-Ouen to the Agnes shaft in Aubervilliers, ... More Information

Local Precast factory launched for Snowy 2.0

Over the weekend Snowy Hydro and the principal contractor and factory operator Future Generation Joint Venture officially launched the new Snowy 2.0 precast factory in Cooma, where 130,000 concrete ... More Information

Breakthrough! Karangahape welcomes Dame Whina Cooper

Breakthrough!  Karangahape welcomes Dame Whina Cooper

On the 17/10/2021 Auckland’s City Rail Link (CRL) celebrated a mighty milestone with its TBM Dame Whina Cooper, breaking through 32 m below ground into the Karangahape Station construction ... More Information

Grand Paris Express - End of the tunnel for TBM Aby!

Grand Paris Express - End of the tunnel for TBM Aby!

TBM Aby has broken through at the Villejuif Louis-Aragon station on Line 15 South.  The TBM - that last March crossed the Vitry Centre Station - completed the 4.3km tunnel from the Arrighi ... More Information

TBM breakthrough on the Kemano hydropower project

A TBM has broken through to complete its journey for Rio Tinto’s Kemano T2 hydropower project in British Columbia. The Kemano T2 Project has completed a second tunnel to carry water into ... More Information

Women in Tunneling Happy Hour: Digging Deeper

Women in Tunneling Happy Hour: Digging Deeper

UCA Women In Tunneling (WIT) invites you to join in conversation with some of the remarkable women in tunneling. Pour your favourite beverage and connect on Thursday, October 21st at 6:00 pm ET. ... More Information

Grand Paris Express –Line 18

On the 16/10/2021 an open day will be held from 6 p.m. to 11 p.m. for the launch of a new TBM for Line 18. This will be the second TBM  for Line 18, whose name will be revealed during the site ... More Information

Second Main Line in Munich - Planning documents for the eastern section are now available

Second Main Line in Munich - Planning documents for the eastern section are now available

The planning approval documents for the construction of the eastern section (PFA 3 East) between the western bank of the Isar and Leuchtenbergring  station, from km 107.853 to km 110.711, of ... More Information

iPS - Safety in tunnels and excavation

iPS - Safety in tunnels and excavation

Tunnelling is essential underground construction that creates tunnels in many different applications for the benefit of the community. Did you know there are many safety hazards and risks involved ... More Information

BCL - Breakthrough for TBM Olga

BCL - Breakthrough for TBM Olga

On 08/10/2021 the TBM Olga - diameter 6 m  - completed the right running  single-track tunnel – 500 m long - between the Kashirskaya station and the transition chamber at the Klenovy ... More Information

T & M Specialists now in Canada

T & M Specialists now in Canada

T&M Specialists Canada now offers a full range of tunnelling and mining specialist services throughout North America.   As Hong Kong based T&M Specialists nears 10 years ... More Information

CEAR introduces their pressurized and ventilated containerized substation – ATEX certified

CEAR introduces their pressurized and ventilated containerized substation – ATEX certified

Press release - Costruzioni Elettrotecniche CEAR is proud to introduce to the market the ATEX certified pressurized and ventilated containerized substation, that is suitable for Hazardous Area ... More Information

Second Narrows Water Supply Tunnel - Canada

Second Narrows Water Supply Tunnel - Canada

On the 04/10/2021 the joint venture  between Aecon (40%) /Traylor Bros Inc. (60%) completed for Metro Vancouver excavation of the Second Narrows Water Supply Tunnel, located in North Vancouver, ... More Information

West Connex - M4-M5 Link Tunnelling update

West Connex - M4-M5 Link Tunnelling update

Construction work on the M4-M5 Link Tunnels Project  - part of WestConnex - the Australia’s largest road infrastructure project - restarted from  31 July 2021, undertaken 24 hours a ... More Information

Epiroc - Collaboration to develop an electric trolley truck system for underground mining

Epiroc, Boliden and ABB recently entered a joint collaboration to develop an electric trolley truck system for underground mining. This development project will lower CO2 emissions, improve work ... More Information

Tunnel Skills - Tunnel Vision

TunnelSkills – the national specialist training forum for the UK tunnelling industry – specialises in the application of immersive learning and new technology to improve training, ... More Information

1000th ring completed on Tideways Greenwich Connection Tunnel

The 1000th ring has been installed on the Greenwich Connection Tunnel by TBM Annie. The TBM is now 1.5km into the journey to Chambers Wharf in Bermondsey, where the Greenwich Connection ... More Information

Clearwater Project - TBM Rachel Launched

Clearwater Project - TBM Rachel Launched

On 28/09/2021  TBM Rachel started its journey towards Royal Palm Beach for the Clearwater Project: at first, she’ll go slowly while systems are tested, but soon she’ll pick up speed ... More Information

Snowy 2.0 Project Updates

Snowy 2.0 Project Updates

Following a brief pause in July to install the remaining gantries and connect the conveyor belt, Lady Eileen - the first TBM to start tunnelling - is now more than 160 m into the mountain. By ... More Information

The TBM in Swinoujscie reaches Wolin Island

The TBM in Swinoujscie reaches Wolin Island

On 19/09/2021 TBM Wyspiarka, which started the Swinoujscie tunnel construction in March this year, broke through the wall of the receiving chamber - 35 m long, 19 m wide and 18 m high - on ... More Information

Press release - Tunnel progress as HS2 completes first mile under the Chilterns

The first enormous 2,000 tonne tunnelling machine passed the one mile mark this week during the construction of the first tunnels for HS2 - Britain’s new high speed rail link between London, ... More Information

Mapei - Concrete restoration and waterproofing systems on existing tunnels

Mapei - Concrete restoration and waterproofing systems on existing tunnels

Maintenance of underground infrastructure is one of the most important issues for the construction market. Nowadays, maintenance includes priority activities, in order to maintain the value of ... More Information

Gotthard Road Tunnel update

On the 29/09/2021 in Goeschenen and Airolo the works for the second tube of the Gotthard motorway tunnel were officially opened. This was a symbolic ceremony, because the original celebration was ... More Information

hyperTunnel – tunnelling reimagined

hyperTunnel – tunnelling reimagined

Innovation born out of necessity: the launch of hyperTunnel will see tunnels built completely differently in future, for huge global societal benefit. hyperTunnel is a new British tunnelling ... More Information

Factory Acceptance Ceremony for STRABAG’s 12m EPB TBM

Factory Acceptance Ceremony for STRABAG’s 12m EPB TBM

The Factory Acceptance Ceremony for STRABAG’s 12m EPB TBM took place yesterday at the Herrenknecht AG workshop in Schwanau, Germany. The TBM will tunnel the Metrolinx & Infrastructure ... More Information

Tianxi Expressway - Weilan Tunnel Completed

On 17/09/2021 the Weilan Tunnel part of the Guangxi Tianxi Expressway project invested in and constructed by Energy China Gezhouba Group successfully achieved a full-scale break ... More Information

Brenner Base Tunnel - Update of Total Project Costs

On the 07/09/2021, after the approval of the updated construction programme, approval was also obtained for the total costs of the BBT project, which had been updated to take the following issues ... More Information

Third breakthrough for Suki Kinari hydropower project in Pakistan

Third breakthrough for Suki Kinari hydropower project in Pakistan

On the 25/09/2021 a ceremony was held to celebrate the third breakthrough of headrace tunnel for the 884 MW Suki Kinari Hydropower Project. The project  has been under construction since 2017 ... More Information

STRATA Worldwide launches new website

STRATA Worldwide launches new website

From their early beginnings in underground coal mining roof support, STRATA has evolved into a leading global provider of advanced products and technologies in multiple industries. “Our ... More Information

Namma Metro - TBM URJA Tunnel Breakthrough at Shivajinagar metro station

On 22/09/21 Urja, the first TBM for the Namma Metro's Reach 6 line made a breakthrough at Shivajinagar, after completing the north bound tunnel of 855 m from Cantonment to Shivajinagar stations: ... More Information

MineARCs - Chamber Commissioning & Everything You Need To Know About It

MineARCs - Chamber Commissioning & Everything You Need To Know About It

Purchasing a MineARC chamber is an investment in ensuring that your crew are safe in the event of a disaster, but simply purchasing a chamber is only the first step in this process. A big part of ... More Information

Tunnelling News

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

China's first vertical large model for tunnel, underground space sector released

The project which is in the Guangdong-Hong Kong-Macao Greater Bay Area. The model helps make tunnel construction safer, higher-quality, more efficient and ... More Information

BMC Begins Major Water Supply Upgrade Mumbai

The project commenced in 2023 and has adopted tunnel boring machine (TBM) technology to minimise surface disruptions in crowded neighbourhoods. Of ... More Information

Slurry tunnel boring machines to be deployed for Bengaluru Twin Tunnel Road Project

B-SMILE opts for slurry TBMs over hard rock TBMs for Twin Tunnel Road project in Bengaluru due to mixed terrain... More Information

Tunnel along railway linking Shenzhen and Shanwei special cooperation zone under construction

Technicians check a tunnel boring machine (TBM) at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug ... More Information

Construction staging area approved for Nashville's airport tunnel project

The Music City Loop will be a 10 mile tunnel connecting downtown Nashville to the Nashville International Airport (BNA)... More Information

Zojila tunnel deadline pushed to 2028: Here's why Asia's longest tunnel project is delayed

Zojila Tunnel Latest Update: On completion, the project will not only play an important role in the country's infrastructure development but also ... More Information

W.A. Rasic Construction Awarded Major Subcontract on Dragados' $630M Effluent Outfall

The tunnel project is a critical component of Southern California's long-term infrastructure resilience strategy. The project directly supports the ... More Information

VDOT gives HRBT expansion update

Construction on the Hampton Roads Bridge-Tunnel Expansion Project hit key milestones as tunneling progresses and traffic shifts to new lanes. More Information

HS2 lifts third TBM following 3.4-mile journey

HS2 Ltd has lifted Tunnel Boring Machine Emily's 9.11-metre diameter cutterhead, front and middle shield, weighing 880 tonnes, from below the ... More Information

Musk's Boring Company unveils Music City Loop tunnel project for Nashville

The big picture: The project has an ambitious timeline of completing the 10-mile route in less than two years. The tunnel would move vehicles at warp ... More Information

Progress Update on East Dallas Tunnel Project to Address Flooding Problems

With so much rainfall throughout the metroplex, NBC 5 wanted an update on a project expected to mitigate flooding in East Dallas... More Information