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HS2 reaches halfway point on key ‘green tunnel’

Press Release - Construction of the 700-metre-long HS2 Burton Green ‘green tunnel’ is now 50% complete, with 150 people supporting the build process The last year has seen completion of ... More Information

Norway - Stad ship tunnel out for tender on December 1st

The Norwegian Coastal Administration (NCA) plans to announce the tender for the Stad ship tunnel construction on December 1st 2024. The regulatory plans were completed at the end of October. NCA ... More Information

First TBM Debohra breakthrough for the U2 metro line in Vienna

First TBM Debohra breakthrough for the U2 metro line in Vienna

On 6th November TBM Debohra - length 127 m and weight 1,300 t -  has reached an important milestone for the U2 metro line in Vienna: after 240 m of underground work from Matzleinsdorfer Platz, ... More Information

Public comment period on Ballard Link Extension in United States, deadline December 9

Sound Transit has started the National Environmental Policy Act (NEPA) scoping process for the Ballard Link Extension. The extension will add 12.39 km (7.7 miles) of light rail service with ... More Information

Final breakthrough for the Rante tunnel on the Ourense LAV bypass

On November 8, 2024, Adif AV celebrated the completion of the Rante tunnel excavation on the new Tabodela-Seixalbo route, part of Spain's high-speed rail (LAV) network. This 3.4-km tunnel, built ... More Information

Snowy 2.0 Project – New milestone for TBM Lady Eileen Hudson

Snowy 2.0 Project – New milestone for TBM Lady Eileen Hudson

The Snowy 2.0 pumped-hydro megaproject has marked a significant milestone, with one of three TBMs, Lady Eileen Hudson, now two-thirds of the way through its second tunnel excavation. The TBM is ... More Information

Record Rewritten! Largest-Diameter Shield Machine "Jianghai" comes off production line in China

Record Rewritten! Largest-Diameter Shield Machine "Jianghai" comes off production line in China

On October 31, a ground breaking shield machine with an excavation diameter of 16.64 meters—the largest Chinese made —rolled off the production line in Changsha, Hunan. This machine will ... More Information

A New Generation of ECO Soil Conditioning Products Reduces Water Use in EPB-TBM Tunnelling

A New Generation of ECO Soil Conditioning Products Reduces Water Use in EPB-TBM Tunnelling

Tunnel excavation using EPB-TBMs has achieved remarkable productivity due to advancements in TBM design, highly effective soil conditioning products, improved backfilling grout techniques, and more. ... More Information

TERRATEC EPBM advances Bangkok Water Supply Project

TERRATEC EPBM advances Bangkok Water Supply Project

In early October, a TERRATEC 4.8m diameter Earth Pressure Balance Tunnel Boring Machine (EPBM) was lowered into place for the Metropolitan Waterworks Authority’s Ninth Bangkok Water Supply ... More Information

Renewed funding for HS2 project

Press release - In the latest 2024 UK budget, Chancellor Rachel Reeves has allocated renewed funding for the HS2 project, specifically prioritizing the development of its tunnel network. This ... More Information

Spain – Consideration of Reopening the Somport Railway Tunnel in Huesca

On September 26th , the Spanish Ministry of Transport and Sustainable Mobility initiated the public consultation process for the Information Study on reopening the Somport railway tunnel in Huesca, ... More Information

Norway - Completion of the Bjonnas Twin-Tube Tunnel

On October 4, the final excavation phase of the Bjonnas Tunnel using the NATM (New Austrian Tunneling Method) was successfully completed! Crews excavated nearly 450,000 cubic meters of rock, some of ... More Information

Spain - Grant for Expansion and Upgrades to the Belate and Almandoz Tunnels on the N-121-A

On October 22, the Spanish Council of Ministers, following a proposal from the Ministry of Transport and Sustainable Mobility, approved a Royal Decree authorizing a direct grant of EUR 40 million to ... More Information

Tutor Perini Subsidiary Secures $1.1 Billion Contract for New York's Vital Water Tunnel Project

Frontier-Kemper Constructors, an Indiana-based construction company and subsidiary of Tutor Perini, has been awarded a $1.1 billion contract by the New York City Department of Environmental ... More Information

Snowy 2.0 Project – tunnel breakthrough!

On October 14th, a significant achievement was made in the Snowy 2.0 project with the breakthrough of the 216-meter tunnel connecting the water intake at the upper Tantangara reservoir to the gate ... More Information

Gates open on London's New super sewer heralding new era for the Thames

Gates open on London's New super sewer heralding new era for the Thames

Press release -  London’s super sewer, designed to protect the River Thames from sewage pollution well into the future, has now been turned on. In May 2024, the new 25km super sewer was ... More Information

Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

 Final Tunnel Boring Machine Launches as Sydney Metro West Reaches Major Milestones

On October 16, 2024, tunnel boring machine (TBM) Ruby began its journey to carve out the final section of the Sydney Metro West project, marking a significant step for this city-shaping ... More Information

First Train Enters Cross River Rail Tunnel for Critical Testing

On October 18, 2024, a significant milestone was reached for the Cross River Rail project as a test train entered one of the project’s twin tunnels and arrived at a new underground station ... More Information

United States - TBM Mary restarted for HRBT project

United States - TBM Mary restarted for HRBT project

The TBM - six months to the day since it broke through the headwall at HRBT North Island - is on the move again. Mary began boring a twin eastbound towards Norfolk shortly after 17th October ... More Information

Turin/Lyon – Updates October

RFI - Turin-Lyon: legality protocol signed for the construction of the Italian section On 18 October 2024, the Legality Protocol was signed between the Prefecture of Turin, Rete Ferroviaria ... More Information

Italy/Tuscany - Voting is open for the name of the second TBM of the High-Speed Railway Bypass in Florence

From October 15th until October 28th, you can vote to choose between the four possible names - Marika, Toscana, Bianca and Viola - of the TBM that will excavate the second tunnel, (the odd track), ... More Information

Turin Metro Line 2: A Major Opportunity for the Local Economy

Turin Metro Line 2: A Major Opportunity for the Local Economy

On September 30, 2024, more than 150 companies from the Piedmont region, along with several major international firms, attended the conference "Opportunities for the Local Economy," focused on the ... More Information

Milan Expands Metro System with Completion of Line 4’s Final Stretch

Milan Expands Metro System with Completion of Line 4’s Final Stretch

On October 12, 2024, Milan celebrated the inauguration of the final section of its Line 4, also known as the Blue Line, connecting San Babila to San Cristoforo. This stretch, which adds 13 new ... More Information

Key Developments in the $16 Billion Hudson River Tunnel Project

Key Developments in the $16 Billion Hudson River Tunnel Project

The Hudson Tunnel Project, a $16.1 billion initiative, is making significant progress in enhancing rail links between New Jersey and New York City. As part of the larger Gateway Program, this ... More Information

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

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

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

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

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 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

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