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Robbins TBM Miss Briella will drive the Lower Meramec Tunnel Phase 2 project

AFFHOLDER (formerly known as SAK Construction, LLC tunneling) will use the TBM named Miss Briella for the Lower Meramec Tunnel Phase 2 project, part of the Metropolitan St. Louis Sewer District. ... More Information

Tunnel segments arrive for HRBT Expansion Project

Last week the HRBT Expansion Project hit a major milestone as the first set of tunnel segments arrived by barge to the South Island from the precast plant in Cape Charles, VA. Nine (9) tunnel ... More Information

High Speed Two: Euston

Press release - The government should use the two-year pause on new construction work at HS2 Euston to develop a design that is affordable, deliverable and value for money, according to a new ... More Information

Two 15.01m Slurry TBMs for CRCHI Break through on Two Projects

Press Release - Xiangya Road river-crossing tunnel in Changsha City - On March 12th 2023, the largest slurry TBM in China’s Hunan Province broke through, which marks the completion ... More Information

Market dialogue is ongoing about how a fixed €5bn HH connection can be implemented - Denmark - Sweden

Press Release - In autumn 2022, the city of Helsingborg went out to the market with an international RFI (Request for Information) to collect proposals on how a fixed connection between Helsingborg ... More Information

WTC2024 - Call for abstracts

The 2024 World Tunnel Congress (WTC2024), the world's major tunnel and underground engineering industry congress, will be held in Shenzhen, China from 19th to 25th April 2024 with the ... More Information

Press Release - HS2 reveals final design for last of seven key Chiltern Tunnel structures

HS2 have revealed the final designs for the North Portal of the Chiltern Tunnel – the last of seven key structures for the high speed rail project’s longest tunnels. Once construction ... More Information

Second tunnel-boring machine arrives at Mount Pleasant

Press Release - Phyllis, the second of two tunnel-boring machines (TBMs) that are constructing twin tunnels for the Broadway Subway Project, broke through to the future Mount Pleasant Station early ... More Information

TELT on track for next tender phase!

On April 20 in Brussels , TELT will outline what it needs for the last operational phase (rail and technological equipment) for the Mont Cenis base tunnel, which is an essential part of the ... More Information

4th Tunnel Breakthrough in Meerut

4th Tunnel Breakthrough in Meerut The Delhi-Ghaziabad-Meerut RRTS corridor witnessed its fourth successful tunnel breakthrough in Meerut. On the 17th March 2023 the TBM Sudarshan 8.3 ... More Information

World Tunnel Congress 2023: Tunnelling in Greece, a culture of underground activities across history

Tunnelling illustrates the progress of a society and, in particular, the great technical and economic power of certain civilisations. The host country of the WTC, Greece, is a prime example with ... More Information

What's new at Geofluid 2023?

Press release - The latest Geofluid show is scheduled for Sept. 13-16, 2023 in Piacenza Italy and will be relaunching an exhibition area dedicated to contaminated site remediation activities and ... More Information

HS2 update

The UK government has announced a two-year delay to the construction of sections of HS2, the high-speed railway connecting London and the West Midlands, citing increased project costs and ... More Information

Switzerland - 2km tunnel for a new train-tram line from Lugano

The Federal Office of Transport (FOT) has issued the building permit for the new tram-train line that will connect Lugano to Ponte Tresa and Manno. This project is the first stage for a modern ... More Information

Press Release - Government commits to Lower Thames Crossing whilst construction slowed down by two years

In a Ministerial Statement, the Government set out its plans for the transport network, to drive growth across the country while managing the pressures of inflation. As part of the Ministerial ... More Information

TBM Ida will drive the west main Brenner Base Tunnel

On the 14/02/2023 the official inspection of the second TBM for the H41 Sill Gorge-Pfons construction lot of the Brenner Base Tunnel took place at Herrenknecht AG in Schwanau (D). The ... More Information

Sweden's largest infrastructure project with €80 billion to be invested over the next 10 years

Press release - Sweden's largest infrastructure project - First trains on Ostlänken in 2033 The eastern link between Södertälje and Linköping is to be completed in 2035. In ... More Information

Tunnelling on the Eglinton Crosstown West Extension reaches halfway mark

Last week the Eglinton Crosstown West Extension reached another milestone: Renny, the first TBM to start tunnelling passed the halfway point, digging over 3 km of the roughly 6 km ... More Information

WTC2023 | Historical Underground Visits - Athens Underground

Join us on Saturday, May 13th for a once-in-a-lifetime opportunity to explore the historical underground constructions of Athens. Discover the hidden secrets of the city as we visit the Memorial ... More Information

Gamuda Wins Major Transport Project in Australia

Press release - Gamuda Australia has been awarded a major transport project by the NSW Government, the Sydney Metro West – Western Tunnelling Package. In a consortium with Laing ... More Information

Press release - First bore of Silvertown Tunnel completes

Jill, the Tunnel Boring Machine (TBM) delivering the Silvertown Tunnel in east London, has reached the rotation chamber in the Greenwich site, completing the tunnelling of the first bore. The ... More Information

UYAK2023 postponed from March to June 2023

Due to the devastating earthquakes in Turkey UYAK2023, the 5th International Underground Excavations Symposium and Exhibition has been postponed to June 5-6-7, 2023. The other key dates that have ... More Information

TBM Vida breaks through on the West Gate Tunnel Project 

The first of two giant TBMs has broken through on the West Gate Tunnel Project, marking the completion of excavation on the 2.8 km first tube of twin tunnels under Yarraville - a Melbourne suburb ... More Information

Press release - Atkins appointed to design €9.5bn Dublin MetroLink project

Atkins has been appointed to the design for the advance works programme of Dublin’s £8.4bn (€9.5bn) MetroLink project. The scheme, given the green light in July of last year, ... More Information

CRCHI - Slurry TBM "Channel Express" Launched for the Construction of Water Supply Tunnels in Singapore

Press Release:- On February 1st, the "Channel Express", a Slurry TBM that was manufactured and shipped by CRCHI to Singapore was launched successfully following a ceremony. The TBM had been ... More Information

Australasian Tunnelling Conference 2023

The 18th Australasian Tunnelling will be hosted by the NZTS in Auckland, Aotearoa New Zealand between the 5th and 8th November 2023. With an overarching focus on Trends and Transitions in ... More Information

CEAR’s R&D updates for its MV Junction boxes

Press Release - Cear’s R&D dept. is always improving the technical performances of its products and specifically for its MV Juction and Distribution boxes. We recently received approval ... More Information

BBT - Segments production started for lot H41 Sill Gorge-Pfons

The main part of tunnels in lot H41 Gola del Sill-Pfons will be driven by two TBMs. The machines - during their tunnelling - will install the rings, composed of prefabricated concrete ... More Information

Strata Worldwide Celebrates 30 Years in Business

The global safety company looks back on accomplishments and looks forward to providing continued support for their industries around the globe. ATLANTA, GEORGIA - January 30, 2023 - Strata ... More Information

Work begins on the Dehesa del Terzuelo tunnel construction on the High Speed Line to Extremadura

Press Release - Adif Alta Velocidad has moved significantly forward in the construction of the 69km second section of the 437km High Speed Line Madrid-Extremadura. This will link Talayuela and ... More Information

Major breakthrough for Broadway Subway Project

A first major milestone has been reached by the Acciona Ghella Joint Venture on the Broadway Subway Project. Elsie, the first of two 150-m-long TBMs that began excavating for the Broadway Subway ... More Information

Switzerland - construction update for Isla Bella tunnel on A13

Press release - On January 26, 2023 the patron saint Santa Barbara blessing was given so construction could begin for the safety tunnel for the Isla Bella tunnel. The tunnelling works will be ... More Information

CRCHI Showcases the overall solution for underground engineering equipment at bauma CONEXPO INDIA 2023

The 6th International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines and Construction Vehicles (bauma CONEXPO INDIA 2023) kicked off on January 31, 2023. China ... More Information

Cross River Rail Project - January/February updates

Teams have now completed Woolloongabba - Albert Street and Boggo Road - Woolloongabba sections in both directions, Roma Street to the Northern Portal 1.2 km in the upline and 750 m in the ... More Information

HS2 celebrates as longest tunnels reach halfway point under the Chilterns

On 01 February HS2 Ltd confirmed that Florence and Cecilia, the two giant TBMs driving the HS2 high speed rail project’s longest tunnels, have passed the halfway point of the 16 km (10 ... More Information

State of California Awards EUR344 (USD375 million) for VTA’s BART Project

On 31/01/2023 the State of California awarded EUR344 million (USD375 million) to the Santa Clara Valley Transportation Authority (VTA) for its BART extension into Downtown San Jose and Santa ... More Information

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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

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