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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

Cross River Rail Project - January/February updates

WTC 2023 - Early Registration Fees deadline extended!

After many requests, the Early Registration for WTC2023 to be held at Megaron Athens International Conference Centre (MAICC) on 12 – 18 May 2023 has been extended. The new early bird deadline is ... More Information

TERRATEC TBMs - Chennai Metro Rail update

In December, TERRATEC celebrated the assembly of the third of five ordered 6.61m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) for the Chennai Metro Rail project in India. ... More Information

City Rail Link Press Release

Press release - Ngā mihi o te Tau Hou (happy New Year) from the team at City Rail Link! We’re back and ready for a busy year working on the next phase of works – fitting out the tunnels and stations ... More Information

Waterproof shotcrete with self-healing properties to repair and protect the vault of the tunnel Paradiso

Waterproof shotcrete with self-healing properties to repair and protect the vault of the tunnel Paradiso Press Release - The phenomenon of self-healing of cracks in concrete structures is a ... More Information

First blast for the Hovik tunnel on E18

Skanska Norge AS and the Norwegian Public Roads Administration started the drill&blast excavation works of the Hovik tunnel on the Strand-Ramstadsletta section of the E18 Lysaker-Ramstadsletta. In ... More Information

Works begin on the Perca bypass ready for Winter Olympics 2026

This month the construction site for the 3 km Perca ring road on the SS 49 in Val Pusteria began preparatory works. The Perca ring road will improve the viability and quality of life of the ... More Information

Tunnelling begins on Scarborough Subway Extension

TBM Diggy Scardust has officially started tunnelling for the Scarborough’s 7.8-km subway extension that will bring subway service farther north into Scarborough and accommodate as many as ... More Information

Kanpur Metro - Second breakthrough on Moti Jheel-Nayaganj underground section

On the 17/01/2023 the Joint Venture Gulermak-Sam India reached an important milestone with the breakthrough of the Terratec TBM S92. The breakthrough happened at Nayaganj Station on the 3.62 km Moti ... More Information

Sepulveda Transit Corridor project

Metro will host three community open houses - one of which will be virtual - on January 21, 24, and 26 - for the Sepulveda Transit Corridor Project, which will build a heavy rail line or monorail ... More Information

WTC2023 - Early Registration

WTC 2023 will be held in a hybrid format. It will mainly be a congress with physical attendance combined with its digital side. Physical participation is encouraged so that this congress marks the ... More Information

Norway - Stad Ship Tunnel supplier conference

To date, in relation to the Stad ship tunnel construction project, about 50 contractors and suppliers have registered for the Supplier Conference. The conference will be held in Gardermoen on the ... More Information

Update for the Lonato tunnel on the HS/HC railway line Brescia East - Verona

On Saturday 7 January 2023, the TBM Martina - diameter 10.03 m, length 150 m and weight 1,750 t - began excavation from the Campagna di Lonato site of the 4782 m second tube of the Lonato rock ... More Information

The Cairo Metro Line 4 Project

In December 2022 Eng. Sayed Farouk - CEO & Chairman of the Arab Contractors Company, visited the Cairo Metro Line 4 project to follow up on the work progress. First, there was a meeting to ... More Information

UYAK2023 Deadline Extended

On the request from authors, the full paper submission date of UYAK2023 Symposium has been extended up to January 15, 2023. The full papers of the accepted abstracts should be uploaded to the ... More Information

Normet acquires Finland-based boom systems manufacturer Rambooms and hydraulic attachments supplier Marakon

Press release - Normet has agreed to acquire Rambooms Oy, a manufacturer and supplier of rock breaker boom systems, and Marakon Oy, a supplier of hydraulic hammers and excavator attachments for the ... More Information

Undergraduates offered paid summer placements on HS2

University students who live, or study, in the Midlands are being offered the chance to join HS2’s construction partner Balfour Beatty VINCI (BBV) on an eight-week paid work placement this ... More Information

TBM named for the S19 Rzeszów Południe - Babica expressway

The name of the TBM that will drill the 2.2 km long tunnel on the S19 Rzeszów Południe - Babica expressway was recently announced as Karpatka. A selection of names were chosen by ... More Information

Romania - Last breakthrough for the Batuta tunnel

In January the excavation of the Batuta railway tunnel was completed. It is part of upgrading of the Frontiera-Curtici-Simeria railway line for trains with a maximum speed of 160 km/h. This ... More Information

Two TERRATEC EPBMS ready for Bangkok flood prevention project

Two new TERRATEC TBMs will take part in the Khlong Prem Prachakorn Drainage Tunnel Project for the Department of Drainage and Sewage Bangkok Metropolitan Administration (BMA) in Thailand. ... More Information

The Double Shield Hard Rock TBM Jasmine starts drive

On December 7th the first double shield hard rock TBM - named Jasmine after the Philippines’ national flower ‘’sampaguita’’ and imported from China - has started to ... More Information

Chengdu-Zigong High-speed Railway project - Breakthrough in the Jinxiu tunnel

Press release - On December 12th - after 14 months of boring - Jinxiu, the China’s largest EPB TBM, developed by CRCHI marked its first major breakthrough in ... More Information

TBM Lilia for Brenner Base Tunnel passes acceptance test

The first of the two TBMs for the H41 Sill Gorge-Pfons construction lot of the Brenner Base Tunnel has formally passed its acceptance test at Herrenknecht AG in Schwanau, Germany. The ... More Information

Switzerland - PoLuMe: given green light from the Federal Council

In its meeting on the 16th December 2022, the Federal Council approved the general project for the upgrading of the A2 motorway from Lugano to Mendrisio (PoLuMe). The total investment amounts to ... More Information

The HRBT Expansion Project - TBM Main Drive Installation update

Work is progressing on the reassembly and placement within cell 1 of the South Island Launch Pit of TBM Mary with her shield section already to set in place. In the next few days the team will lift ... More Information

This is how Augmented Reality digitalizes Machinery and Plant Engineering at Häny

From article by AUGMENT IT - With Augmented Reality, companies increase efficiency and quality in the inspection processes of Plants and Machines, as the case of Häny AG impressively ... More Information

Terratec TBM S88 Breaks through in Meerut

On the 15/12/2022 Sudarshan 8.1, the Terratec TBM EPB S88, reached the Meerut Central RRTS Station completing the 1823.39 m long tunnel between Bhainsali to Meerut Central Stations (Package 8). ... More Information

A CRCHI Hard Rock TBM has achieved 1000 meters per month in Peru

On December 6, the first hard rock TBM exported to South America by CRCHI created an advance rate record of more than 1000 meters per month for the construction of the San Gawang Hydropower Project ... More Information

Patna Metro Rail Project updates

The construction work on the underground section of Corridor 2 in Patna, the capital of Bihar, will soon be on a fast track as two of the four TBMs procured by the Delhi Metro Rail Corporation ... More Information

A new excavation front for the Lyon-Turin tunnel project

The Lyon-Turin base tunnel in France has now commenced excavation in Saint-Julien-Montdenis on construction site n.08 in Villard-Clément. Almost 3 km of tunnels will join the 10.5 km already ... 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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