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Italy - Technical regulations for fire prevention in metropolitan railways

The Ministry of the Interior for the technical regulations for fire prevention in the design, construction and operation of metropolitan railways have published their latest guidelines. Visit ... More Information

Breakthrough in the Sachseln safety tunnel

Breakthrough in the Sachseln safety tunnel

On 19.10.2015 a veteran Robbins Main Beam (diameter 4.20 m, weight 260 t) completed the excavation of the 5,084 m-long  Sachseln safety tunnel on  the A8 motorway, in Switzerland. Works, ... More Information

Moscow Metro on a Roll!

Moscow Metro on a Roll!

This Autumn the company SMU Engeocom from Moscow completed two tunnels for the third interchange (second circle line) of the Moscow metro, using two Robbins EPB TBMs. On 24.10.2015 the TBM Victoria ... More Information

Second tunnel on Auckland’s Waterview Connection motorway completed

Second tunnel on Auckland’s Waterview Connection motorway completed

TBM Alice, one of the largest TBM's ever used in the Southern Hemisphere, completed its work on the Waterview Connection, a link in a motorway network through the city of Auckland, between the ... More Information

Final Breakthrough in Monte Poggio Maria tunnel

Final Breakthrough in Monte Poggio Maria tunnel

On 22.10.2015 Cipa SpA completed the excavation of the  railway tunnel Monte Poggio Maria.  The project is part of construction for the enlarging of the Cefalu'- Ogliastrillo section on ... More Information

FCC to construct the Toyo Tunnel in Colombia

FCC to construct the Toyo Tunnel in Colombia

FCC has been awarded the contract for the project which includes the design, construction, operation and maintenance of the Toyo tunnel in the Urabá Port (around 80 kilometres from ... More Information

Turin Line 2 approved

On 20.10.2015 the Turin City Council approved the tender design to authorize the start of tendering process for contracts to construct the city's second driverless metro line, connecting Rebaudengo ... More Information

Seli Overseas sponsors tunnelbuilder!

Seli Overseas sponsors tunnelbuilder!

Tunnelbuilder would like to welcome Seli Overseas SpA as the latest sponsor of the tunnelbuilder websites. In February last year Seli Constructions SpA partnered with Grandi Lavori Fincosit Spa ... More Information

New milestone for the red line project in Doha

New milestone for the red line project in Doha

With the breakthrough of TBM S-867 on 10.10.2015 and S-865 on 13.10.2015 at the Legtaifiya Station in Doha, Salini Impregilo, leader of the ISG joint venture, has completed 11 out of the 16 ... More Information

Chiaravagna tunnel completed

Chiaravagna tunnel completed

On 22.10.2015 Cipa Spa, along with the contractor COCIV, finished the excavation of the 278 m Chiaravagna tunnel. The tunnel is part of the new high speed, high capacity railway line ... More Information

Florence breaks through at Castle Hill

Florence breaks through at Castle Hill

On 02.10.2015 Sydney metros North West TBM number 2 Florence broke through into the site of the future Castle Hill station after a 6.5 km dig. Work began at Bella Vista in late October last year. ... More Information

Pinchat railway tunnel breakthrough

Pinchat railway tunnel breakthrough

The final wall of the 2.1 km Pinchat tunnel came down on the 10/08/201. The tunnel is 30 meters below the Route de Troinex, creating the connection between Carouge-Bachet and Val d'Arve, on the ... More Information

Fortezza-Ponte Gardena access plans filed

RFI and Italferr have completed the final design for the Fortezza-Ponte Gardena access, which is part of the Brenner Base Tunnel project and filed it at the Ministry of Infrastructure and Transport. ... More Information

Testing has begun at the Gotthard Base Tunnel

The federal office of transport has given the go ahead for testing to begin in the Gotthard Base Tunnel.  The first successful test runs began on 01/10/2015 with the first trains using ... More Information

Iran-Armenia railway construction

The construction of the Iran-Armenia railway will begin after the creation of an important cargo base. The railway will be used mainly for in-transit freights from Iran to other countries. The ... More Information

Breakthrough for SS640 at Caltanissetta tunnel

Breakthrough for SS640 at Caltanissetta tunnel

On  the 15/10/2015 C.M.C Ravenna with TBM Barbara broke through on the first part of the 4 km Caltanissetta tunnel, which is part of the 28 km-long section upgrade at the A19 ... More Information

Latest news from the Shieldhall tunnel

Latest news from the Shieldhall tunnel

The contract was awarded equally between  JV Costain and VINCI Construction Grands Projets and covers the construction of two shafts, 15 m diameter each, with a depth of 20 m, a 300 m long ... More Information

The first tunnel section of line 5 of the Riyadh Metro is complete.

The first tunnel section of line 5 of the Riyadh Metro is complete.

On 06.10.2015 FAST, the FCC-led consortium made up of Samsung, Alstom, Strukton, Freyssinet Saudi Arabia, Typsa, Atkins and Setec, finished drilling the first tunnel section of line 5 (green ... More Information

Cifa at Victoria Station – Press release

Cifa at Victoria Station – Press release

The London Underground, the oldest in the world and the largest in Europe, comprises 11 different lines and 270 stations. Of these the Victoria Line is a deep-level underground route that was ... More Information

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

Liantang/ Heung Yuen Wai Boundary Control Point at Hong Kong

On 31.08.2015 a 14 m diameter dual-mode EPB TBM was launched in Hong Kong at the north portal of the tunnel that will link the north-eastern New Territories and the Liantang border crossing in ... More Information

TERRATEC TBMs COMPLETE CC-34 PROJECT IN DELHI METRO AHEAD OF SCHEDULE

TERRATEC TBMs COMPLETE CC-34 PROJECT IN DELHI METRO AHEAD OF SCHEDULE

On 21st August 2015, the Tunnel Boring Machine S36 broke through at Palam Station, 27 days after its twin S37 did the same, completing the last drives on Contract CC-34 of Delhi Metro Phase-III. ... More Information

Dätwyler Newsletter

Dätwyler Newsletter

The latest Dätwyler Newsletter is now available with updates on all their current and future projects. Please click here. 40/15   More Information

Seattle Northgate Link Extension - Tunneling update

Seattle Northgate Link Extension - Tunneling update

Tunneling crews continue to make progress on both tunnels between the Roosevelt Station site and the U District Station site for the Northgate Link Extension in Seattle. TBM Brenda is just south of ... More Information

Setronic ARGO at Expotunnel

Setronic ARGO at Expotunnel

Setronic Verona Srl is an ISO 9001:2008 certified company, specialized in design, manufacture and after sales service for optical beam smoke and fire detectors, opacity analyzer, ... More Information

Brenner Base Tunnel - TBM begins its work

Brenner Base Tunnel - TBM begins its work

On the 26/09/2015 the ceremony was held for the launch of a TBM in at the Brenner Base Tunnel in Innsbruck, Austria. The cavern at the Ahrental end was used for assembly and launch. There were ... More Information

TBM for Grand Paris Express ready

TBM for Grand Paris Express ready

The TBM for the grand Paris Express is now ready to start. The TBM was christened Magaly on the 09.09.2015 it is the first of two TBMs that will dig the tunnel for the extension of line 14. The ... More Information

Euclid Creek Tunnel closes under budget

On 17.09.2015  the Northeast Ohio Regional Sewer District’s Board of Trustees approved the final award of the contract 238-15. This contract will close $3.6 million less than the original ... More Information

Blanka tunnel opened in Prague

Blanka tunnel opened in Prague

The 6,382 m Blanka road tunnel complex in Prague, consisting of three tunnel sections, was opened on 19.09.2015. The project is on the north-western part of the inner ring road in Prague. Click ... More Information

Robbins Main Beam ramps up at Mid-Halton Outfall Tunnel.

Robbins Main Beam ramps up at Mid-Halton Outfall Tunnel.

 On July 22, 2015, a 3.5 m (11.5 ft) Robbins Main Beam TBM began a new chapter in its storied 32-year career. Originally built for the Terror Lake project in Alaska, the veteran machine has ... More Information

Sandvik Newsletter

Sandvik Newsletter

The latest newsletter from Sandvik Construction is now online. Visit http://construction.sandvik.com/news-media/e-newsletter/september-2015/ . 39/15 More Information

Nenskra hydroelectric project

Nenskra hydroelectric project

On 16.09.2015 the ground breaking ceremony for the Nenskra hydroelectric project  was held in the mountainous northwestern Georgian region of Svaneti. The 280MW project will ensure the ... More Information

Sydney Metro Northwest tunnelling breakthroughs for TBM1, TBM3 and TBM4

Sydney Metro Northwest tunnelling breakthroughs for TBM1, TBM3 and TBM4

On 18.09.2015 TBM3 Isabelle, one of four machines excavating the 15km twin tube tunnels from Bella Vista to Epping, broke through. It’s the first Sydney Metro Northwest TBM to reach the end of ... More Information

Construction has started on the first well for NorthConnex Tunnel in Australia

On 11/09/2015  a 40 t piling rig drilled the first pile at the northern interchange at Wahroonga junction. This is for the construction of the first well for the NorthConnex tunnel in Sydney. ... More Information

Waterview near completion

Waterview near completion

The Tunnel boring machine Alice is only 332 m away from her second breakthrough for the  Waterview Connection in Auckland, New Zealand. The second tunnel which is 2.4 kilometers long is also ... More Information

DUX Machinery introduces the DUX DT-20T

DUX Machinery  introduces the DUX DT-20T

With over 45 years of experience, DUX Machinery Corporation is a Canadian manufacturer of heavy-duty underground equipment designed to meet the needs of mining and tunnelling projects worldwide. DUX ... More Information

Australian Tunnelling Conference update

The latest project updates to be discussed at the Australian Tunnelling Conference in Sydney next month “We have a fantastic program featuring a number of project updates from all over ... More Information

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