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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

DMRC achieves major construction milestone

In November 2022 the Delhi Metro Rail Corporation (DMRC) achieved a major construction milestone in Phase 4. They completed tunnelling work between Krishna Park Extension and Keshopur on the ... More Information

Hiwa-i-te-Rangi has completed Manukau harbour crossing in Auckand

The 5.4m diameter TBM Hiwa-i-te-Rangi arrived at the 25m deep Pump Station 23 shaft in Hillsborough (Auckland) on 6th December. The TBM had left the southern shore of the Manukau in September ... More Information

The winners of the 8th edition of ITA Tunnelling Awards

The 8th edition of the ITA Tunnelling and Underground Space Awards was held online on the 8th December 2023. The winners in each category are: MAJOR PROJECT OF THE YEAR - Purple line ... More Information

Terzo Valico dei Giovi-Genoa Junction Combined Project - New breakthough in Valico tunnel

On the 04/12/2022 - celebrating Saint Barbara the patron saint of miners and tunnellers - there was a breakthrough between Polcevera and Cravasco work site in the Valico tunnel (odd track). This ... More Information

Feds Clear the Way for VTA to Pursue Billions More in Funding for BART Silicon Valley Extension

The Santa Clara Valley Transportation Authority (VTA) just received authority to pursue federal funding for up to 50% of the cost of Phase II of the BART Silicon Valley Extension Project. The ... More Information

Lower Thames Crossing plans accepted for examination

Earlier this week, the Government’s independent planning authority, the Planning Inspectorate, confirmed it has accepted National Highway’s application for a Development Consent Order ... More Information

Grand Paris Express - Updates

Line 17 - On Monday 14th November at 5 pm the TBM Dorine - 120 m long and weighing over 1,000 t – brokethrough at Line 17’s Rolland manufact in Le Bourget at a depth of 26 m, ... More Information

HS2 celebrates launch of TBM for second tunnel bore under Long Itchington Wood UK

Press release - HS2 Ltd’s 125 metre-long ‘Dorothy’ tunnel boring machine has launched for her second one-mile tunnel bore under Long Itchington Wood in Warwickshire, marking the ... More Information

New innovative machine the WallEater now available from 4STREETS Srl

There has been great excitement recently at the 4STREETS Srl office, due to the fact that 4machines Srl has delivered an innovative new machine called the WallEater. It is equipped ... More Information

The Lower Olentangy Tunnel project in the city of Columbus is moving forward

In November 2022 the Herrenknechkt TBM - value EUR10.63 million (USD11 million) - that was shipped from Germany has now been moved to the construction site on the Olentangy River Road in the city of ... More Information

Approved by Fire Brigade - Turin's metro line 2 project

The Provincial Fire Brigade Command approved, on 21 November, the final design of the Rebaudengo-Polytechnic section of the metro Line 2 in Turin. The project represents the "first ... More Information

Tseung Kwan O-Lam Tin Tunnel and Cross Bay Link, Tseung Kwan O in Hong Kong opens soon

The Tseung Kwan O-Lam Tin Tunnel (TKO-LTT) and the Cross Bay Link, Tseung Kwan O (CBL) will be commissioned on December 11 (Sunday) to improve the transport network and facilitate the commuting ... More Information

The HRBT Expansion Project - Making Headway with the Headwall

The massive east headwall in the South Island launch shaft is now complete, and the 14 m (46-foot) external ring at the start of the new tunnel was recently bolted onto the headwall. ... More Information

Updated specifications for the northern extension of Line 3 of the Brussels metro

On 14 October 2022, Beliris published a special specification for the civil engineering works for the northward extension of the Brussels metro Line 3. The tenders are expected in the first quarter ... More Information

Supplier conference for the construction of Stad Ship Tunnel

The Norwegian Government's budget in 2023 confirmed EUR 7.23 million (NOK 76 million) was set aside for the Stad ship tunnel. After the Storting (Norwegian Parliament) approved the construction and ... More Information

Robbins Double Shield Launches in Nepal

Second Project Underway for Record-Setting TBM - In October 2022, China Overseas Engineering Group Co. Ltd and China Railway No. 2 Engineering Group Co Ltd launched a 6.4 m diameter Robbins Double ... More Information

Milan M4 update

On Saturday 26th November the Municipality of Milan and Webuild will inaugurate the first 5.4 km of the new M4 line (Blue), connecting Linate airport with Dateo, one of the 6 interchanges of ... More Information

Silvertown tunnel update

Riverlinx’s TBM Jill has now bored more than 210m and installed 102 rings and now it has started tunnelling under the river Thames towards North Greenwich! Once the TBM reaches the Greenwich ... More Information

Registration for the 8th edition of the ITA Tunnelling Awards is open!

Since 2015, the international competition the ITA Tunnelling and Underground Space Awards seeks and rewards the most ground-breaking innovation and outstanding projects in tunnelling and ... More Information

Construction update on the Eglinton Crosstown West Extension

In the last six months Renny, the first TBM to start tunnelling between Renforth Drive and Scarlett Road for the contractor West End Connectors Construction (WECC) has tunnelled 1.9 km, while Rexy, ... More Information

Inter-prefecture decree declaring the LNPCA Phases 1 & 2 project of public utility

On Thursday 13 October 2022 the Prefect of the Provence-Alpes-Côte d'Azur and Bouches-du-Rhône Region, the Prefect of Var and the Prefect of the Alpes-Maritimes signed the ... More Information

Independent Study Confirms VTA Plans for a Single Bore Tunnel

An independent study by world renowned tunnelling experts, confirms the Valley Transportation Authority’s single bore tunnel design is the right approach to deliver the BART Silicon Valley ... More Information

Robbins TBM Launches in Nepal

On October 14, 2022 China Overseas Engineering Group Co. Ltd and China Railway N. 2 Engineering Group Co Ltd launched a 6.4 m diameter Robbins Double Shield TBM. The TBM will bore the 13.1 km ... More Information

First section of CRL track laid

Press release - After the final tunnelling breakthrough last month, the Link Alliance team has completed the first section of railway track from Te Waihorotiu Station (Aotea) to Waitemata Station ... More Information

Construction begins on the Davao City Bypass‘s tunnel in the Philippines

The Philippines's Department of Public Works and Highways (DPWH) is going to accelerate the construction of the twin-tube 2.3km- length and 10 m-diameter mountain road tunnel in the central portion ... More Information

The City of Helsingborg requests private sector solutions for a permanent link between Helsingborg and Helsingor

The City of Helsingborg issued an RFI (Request for Information) to examine how the private sector would build a permanent link between Helsingborg and Helsingor. The project will ... More Information

Three TERRATEC EPBMS delivered for Ninth Bangkok Water Supply Tunnel

A total of three new TERRATEC TBMs will take part in the Metropolitan Waterworks Authority’s Ninth Bangkok Water Supply Improvement project in Thailand. TERRATEC celebrated the ... More Information

CRCHI Showcases Its Comprehensive Solution of Underground Engineering Equipment at BAUMA 2022

Press release - The 33rd Edition of the World's Leading Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, Construction Vehicles and Construction Equipment (bauma ... More Information

Route decision for E6 Gyllan – Kvål

On 25th October the municipal council in Melhus municipality gave the go ahead with routes 1.1A with 100 km/h and option 2.1 with the 6km Homyrkam tunnel for the new E6 from Gyllan to Kval. ... More Information

The second of HS2's TBM sets off underneath the capital

On 27 October 2022 HS2 Ltd launched their fifth TBM Caroline, that will be constructing tunnels for the HS2 railway through London. HS2’s first London TBM Sushila - started on the 06 October ... More Information

RRTS corridor witnesses first tunnel breakthrough in Meerut

On the 22/10/2022 the 90m-long TBM EPB S90 (Sudarshan 8.3) completed the first 750 m long tunnel to the Begumpul station in Meerut on the Delhi-Ghaziabad-Meerut RRTS corridor. The tunnel has been ... More Information

Suburban Rail Loop East project - updates

Construction of SRL East between Cheltenham and Box Hill is now underway. SRL East will deliver 26km of twin tunnels and 6 brand new underground stations and quicker journeys between major ... More Information

First tunnel boring machines arrive for Sydney Metro West

The first two TBMs have arrived for the Sydney Metro West project, ready to start construction on the new 24-km tunnels which will connect Greater Parramatta to the Sydney CBD. The two ... More Information

WTC2023| Full Paper Submission - Deadline Extended

This is your last chance to submit your work! Due to the overwhelming requests of many authors, the organizing committee has decided to extend the paper submission deadline until October 31st. We ... 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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