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Vietnam’s High-Speed Railway Project: A Leap Toward Modern Connectivity

Vietnam is embarking on an ambitious journey to revolutionize its transportation system through the development of a comprehensive High-Speed Railway (HSR) project. This multi-part initiative will ... More Information

CRCHI TBM Exported to Switzerland Begins Operations

On September 29th, at the Ingenbohl construction site, approximately 70 kilometers from Zurich, Switzerland, a new double-shield hard Tunnel Boring Machine (TBM), designed and manufactured by China ... More Information

Lower Thames Crossing - Government extends planning deadline

On Monday 7 October, the Secretary of State for Transport announced a new deadline for Government to make a decision on the Lower Thames Crossing Development Consent Order (DCO) application, the ... More Information

A38 Saltash Tunnel technology upgrade

Press Release - Work to start in late November 2024 - We’re working with local stakeholders including the MP, councils, Derriford Hospital, Network Rail and GWR, as well as our construction ... More Information

Arrival of the First TBM for Lot 1A of the Battipaglia-Romagnano Section on the Salerno-Reggio Calabria High-Speed Line

The first of four tunnel boring machines (TBMs) designated for the excavation of tunnels in the Battipaglia-Romagnano section (Lot 1A) of the Salerno-Reggio Calabria high-speed rail line has arrived ... More Information

South Australia - Double down the TBMs purchase for River Torrens to Darlington (T2D) Project

On 29/09/2024 the South Australian Government and the T2D Alliance have formally sealed a contract to purchase three initial TBMs from world-leading manufacturer Herrenknecht. Infrastructure and ... More Information

TERRATEC achieves another successful TBM breakthrough

TERRATEC TBM S81B celebrated its first tunnel breakthrough at Otteri Station for the 116.1 km Chennai Metro Rail Phase-II Corridor 3 project in India. TERRATEC, a leading provider of tunnel boring ... More Information

Suburban Rail Loop (SRL) East - TBMs on the way

The first 4 TBMs, manufactured by Herrenknecht, for SRL East will begin arriving on site next year. The TBMs will be in the ground in 2026 and they will drill 16kms of twin tunnels between ... More Information

Switzerland - Federal Council Approves Final 3.5 km Section of the N28 in Prättigau

On September 13, 2024, the Swiss Federal Council approved the construction of the final 3.5 km stretch of the N28 between the Fideris/Jenaz and Küblis/Dalvazza junctions. The current road is ... More Information

France - Toulouse Metro Updates

Line B - At the end of August 2024, the consortium Bessac, Soletanche Bachy, GTM Sud-Ouest TP GC with the TBM Clemence Isaure - 30m long and 5,28m in diameter - completed the second ... More Information

BBT - First breakthrough in the main Brenner Base tunnel in Austrian area

The ceremony has been held for the last breakthrough of the first main tunnel in the Austrian territory of the Brenner Base Tunnel. The breakthrough is at the Sill Gorge site, between lots H21 Sill ... More Information

Announced the shortlist for the ITA Tunnelling Awards 2024!

The ITA-Aites judges selected the ITA Tunnelling Awards 2024 finalists from an outstanding pool of entries - over 100 applications from 19 countries! The finalists in the 7 categories have been ... More Information

CRCHI TBM Ready for Romania

On September 12, a 6.35m diameter TBM passed its FAT at CRCHI’s second industrial park in Changsha. It will now be shipped to Cluj-Napoca, Romania, where it will be used in the construction of ... More Information

BBT - Launch of the Wilma and Olga TBMs

The launch of the Wilma and Olga TBMs will take place on Wednesday 18th September 2024 at the BBT H53 Pfons-Brenner construction site. The first components of the two TBMs - after ... More Information

Norway - Stad ship tunnel out for tender in October

Before the Norwegian Coastal Administration can issue the tender for the construction of Stad ship tunnel, all regulatory plans related to the ship tunnel must be approved. The Stad City Council ... More Information

New Zealand - TBM Hiwa-i-te-Rangi passes three quarter mark for Central Interceptor tunnel

On 11th September the TBM Hiwa-i-te-Rangi broke through into the 30-m deep shaft at the Western Springs site. The TBM Had tunnelled a little over 13km and installing over 8100 segment ... More Information

India - Breakthrough on Namma Underground metro, Pink line, in Bangalore

The Namma Metro’s TBM Tunga S-839 B - after tunnelling 936.6 m between Kadugondanahalli Station to Nagawara Station’s South Cut & Cover Shaft – broke through on 04th ... More Information

Excavation of the northern tube of the Bjonnas twin-tube tunnel in Norway completed

Eiffage Genie Civil on Wednesday, August 28th at 4:30 PM - after 18 months of intensive excavation - achieved the first breakthrough in the Bjonnas tunnel (2540 m) on the E18 Langangen - ... More Information

United States - GDC board authorizes EUR3.43 bn (USD3.8 bn) grant agreement to fund the Hudson Tunnel Project

On August 28, 2024 the Gateway Development Commission (GDC) Board authorized GDC to enter into a final agreement in September with the Federal Railroad Administration (FRA) for a EUR3.43 bn (USD3.8 ... More Information

TERRATEC TBMs are delivering for Mumbai Sewage Disposal Project

TERRATEC 3.85m diameter Rock Slurry TBM has its first breakthrough in Malad West for Mumbai city’s 5.8 km Sewage Disposal Project-Stage II, PST-1 in India. TERRATEC celebrates the first ... More Information

HS2’s tunnelling into Birmingham reaches halfway point

The construction of HS2’s gateway to Birmingham takes a leap forward as the huge 125-m-long TBM digging the first bore of the Bromford tunnel reaches the halfway point. The 1,600 t ... More Information

Italy/Sicily – Approved access ramp to the evacuation tunnel section, on the Ogliastrillo-Castelbuono

On 3 September 2024 - following the positive conclusion of the Service Conference convened in March 2023 - the definitive project (PD) of the proposed variant for the Cefalù stop - Access ... More Information

Chile - Breakthrough under Parque Araucano for metro Line 7 in Santiago

On the morning of Tuesday, August 13, 2024, representatives of the Ministry of Transport and Telecommunications and the Santiago Metro attended the breakthrough of the future metro Line 7 of ... More Information

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park

Sydney Metro West Mega Machines Touchdown at Sydney Olympic Park The construction work to deliver the 24-km new Sydney Metro West railway power ahead. The mega project has recently achieved a slew ... More Information

Spotlight on Scandinavian Infrastructure: A Massive Opportunity on the Horizon

Press release - The Norwegian Public Roads Administration has announced a landmark project—the construction of the E134 Oslofjord connection, Stage 2. With a contract value estimated at NOK ... More Information

Snowy 2.0 confirms 4th TBM

A new tunnel boring machine will be deployed to help keep Snowy 2.0 on its delivery timeline, subject to approval by the NSW Department of Planning, Housing and Infrastructure. New ground testing ... More Information

Registration for WTC2025 is now open

The registration for the World Tunnel Congress 2025 in Stockholm is now open. In less than a year, WTC2025 will take place at Stockholmsmässan in Stockholm. Join WTC2025 to connect with ... More Information

TBM breaks ground in Watsonia for North East Link

The first of two massive TBMs - 90 m long, 15.6 m high, and 4000 t weight - has begun digging the 6.5 km twin road tunnels between Watsonia and Bulleen that will take 15,000 trucks off local roads ... More Information

Reusing dirt and rock as we build the North East Link tunnels

The TBM involved in the construction of the 6.5km North East Link road tunnels will excavate around 5 million tonnes of very deep underground dirt and rock: natural material that can be ... More Information

Breakthrough on Two Lines and First Connecting Passage of the Guangzhou Haizhu Bay Tunnel

Press release - On July 15th, the Guangzhou Haizhu Bay Tunnel project achieved a significant milestone with the successful breakthrough of both tunnel lines. This project marks the construction of ... More Information

Join Mapei’s Underground Technology Team for an Exciting Event at Our Mapei World London City Showroom

📅 Date: [Thursday 22nd AUGUST] 🕒 Time: [2 PM- 6 PM] 📍 Location: [Mapei World London City Showroom, 6 Great Sutton Street, London, EC1V ... More Information

PRESS RELEASE - We’re half way there! HS2’s Northolt Tunnel under the capital is 50% complete

Quartet of tunnelling machines boring the Northolt Tunnel between West Ruislip and Old Oak Common station have built half of the tunnel New video and images shows the unstoppable momentum of the ... More Information

TBM Ida completes 4 Km of the westbound tube of the Brenner Base Tunnel, H41 Lot

On 22 July, the TBM Ida celebrated the excavation of the first 4 km - out of its total 8.4 km - of the westbound line tunnel to the south at the Austrian H41 Sill-Pfons Gorge construction site. The ... More Information

TERRATEC Open TBM successfully breaks through on Mumbai's Ambitious Water Transfer Tunnel

TERRATEC celebrated a significant milestone in Mumbai’s ongoing water infrastructure development with the breakthrough of a 3.2m diameter Open TBM used by Contractor Soma Enterprise Limited on ... More Information

FAT passed for TBM 1412 to be involved in Palermo-Catania Railway Lot 1+2

The TBM 1412, an EPB with a diameter of 9.48 m, set to excavate Fiumetorto - Lercara Diramazione section (Lot 1+2), as part of the Palermo-Catania-Messina railway line project, has successfully ... More Information

Changsha Xiangya Road River-crossing Tunnel Is Opened to Traffic

On July 5th, Changsha Xiangya Road river-crossing tunnel was opened to traffic. The tunnel is the largest diameter shield machine tunnel in Hunan Province, China. The opening of the tunnel will ... 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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