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Innovation in the construction of underground works

During ExpoTunnel, on October 23-24, the SIG - Italian Tunnelling Society has organized the international conference Innovation in the construction of underground works. Among the speeches on 23 ... More Information

Thimphu-Wangdue feasibility

The Thimphu-Wangdue road is classified as the primary national highway in Bhutan. Except for an undefined weak zone near the portal at Nabisa, the 10.5 km-long road tunnel road Yusipang in Thimphu ... More Information

Breakthrough in Bhutan

Excavation of the headrace tunnel from adit 1 to the de-silting chamber has been completed at Punatshangchhu-II HEP in Bhutan. The de-silting chamber helps clean up the raw water between intake and ... More Information

Invitation to Expotunnel

Invitation to Expotunnel

Expotunnel will be in Bologna, Italy from 23 to 25 October 2014, where tunnelbuilder team welcomes you to our stand D2-E1 in Hall 19. Fill out the registration form and you'll receive by email ... More Information

Caltanissetta in Sicily.

Caltanissetta in Sicily.

By 28.09.2014 EPB TBM Barbara (diameter 15.08 m, length 115 m) owned by consortium Empedocle 2, comprising CMC (leader), Tecnis and CCC, reached the 1 km mark driving the Caltanissetta tunnel on SS ... More Information

Bjornabakkane start

Bjornabakkane start

Metrostav and Havnen Anlegg have started drill/blast construction of the 1,565 m-long Bjornabakkane tunnel in Central Norway. The tunnel, commissioned by Statens vegvesen, will provide avalanche ... More Information

Northgate Link Extension update

Northgate Link Extension update

Northgate Link Extension will connect the Northgate, Roosevelt and U District neighborhoods to downtown Seattle, US and the airport. A second TBM is beginning its 5.79 km journey from the Maple ... More Information

Robbins TBM in Queensland coalmine

Robbins TBM in Queensland coalmine

In August, 2014 major progress was made at a coalmine in Queensland, Australia when a specialized Robbins Dual Mode EPB/Rock TBM was successfully rolled out after completing the first of two access ... More Information

Expotunnel on-line registration

The exhibiting companies and those that make up the Promotion Committee are working in the underground field in Italy and abroad with their innovative solutions. For example: Spea Ingegneria ... More Information

Sao Paulo green metro line 2 extension

Sao Paulo green metro line 2 extension

The Sao Paulo, Brazil green metro line 2 extension will be a new 14.4 km-long section between Vila Prudente and Dutra stations, including 15 shafts, turnout tracks and the following 13 stations: ... More Information

Brenner Base Tunnel

Brenner Base Tunnel

Excavations on the Tulfes-Pfons construction lot began on 18.09.2014 with a solemn ceremony. The BBT project along the 9,000 km north-south corridor from Helsinki to La Valletta is very important ... More Information

Turin metro funding

On 18.09.2014 Piedmont Region and the company Infra.To signed the agreement for funding EUR35 million for the construction of the Lingotto-Bengasi section 4 of Line 1 of Turin metro. The section ... More Information

Indian tunnels progress

The Border Roads Organization (BRO) reported the construction of the 8.8 km-long Rohtang tunnel in the State of Himachal Pradesh, India is underway, with 4.4 km completed to date. Meantime, ... More Information

iBBT Project

On 12.09.2014 was held the final conference of the three-year Interreg Italy-Austria IBBT project on flooring, lining and innovative lighting for tunnels. The project, co-funded Interreg IV ... More Information

Reno-Alps corridor news

Reno-Alps corridor news

On 18.09.2014 the 4th International Corridor Reno-Alps Conference was held in Genoa, Italy. The Swiss Confederation aims to transfer freight from road to rail through the Lotschberg (opened in ... More Information

Power on the Fehmarnbelt link

Power on the Fehmarnbelt link

The 18 km-long Fehmarnbelt tunnel with its electrified rail operation and a fully lit road tunnel requires the security of an uninterrupted power supply. It will have its own, major substation at ... More Information

Complimentary Robbins Web Seminar on Field Experience

Complimentary Robbins Web Seminar on Field Experience

The latest in the Robbins Webinar series is entitled Lessons Learned from the Field: the Greatest Challenges in TBM Tunnelling. The discussion is scheduled for one hour on Tuesday, 30th September ... More Information

Over 900 items for Caorso auction

Over 900 items for Caorso auction

Ritchie Bros next auction in Caorso, Italy is on Thursday 2nd October, 2014. Over 900 items are currently included in the inventory, and more will be added in the coming weeks. This wide variety of ... More Information

Biel bypass go-ahead

Biel bypass go-ahead

The Federal Council of Berne, capital of Switzerland, has approved construction of the western branch of Biel bypass, including the junction to the right bank of Lake Biel (port tunnel) and ... More Information

Expotunnel for Bologna

Expotunnel for Bologna

ExpoTunnel is dedicated to the world of tunnelling, drilling, mining, underground construction and research. Following a successful first show in 2013, the second edition will take place in Bologna, ... More Information

Australian conference imminent

Australian conference imminent

The 15th triennial Australian Tunnelling Conference takes place in Sydney 17-19th September, with more than 80 technical papers due for presentation. ES Rubber, the manufacturer and international ... More Information

London power tunnels update

Contractors Costain Skanska JV recently completed the 3.4 km-long stretch of tunnel under the River Thames between Wandsworth and Earls Court using TBM Evelyn. This involved the twin challenges of ... More Information

Coguaro4 underground mixer

Coguaro4 underground mixer

An underground concrete machinery open house dedicated to tunnelling machines was held in July at CIFA headquarters in Senago (MI). On the CIFA test field, which was set up for the occasion, ... More Information

Approval for wider Eppenberg

Datec has approved the FFS project for the widening to four tracks of the Olten–Aarau rail section, including the new 3 km-long Eppenberg tunnel. Work starts on the tunnel next spring. Value ... More Information

Opportunities at Qatar Rail

Middle East Rail convention takes place in Dubai 17-18 March, 2015. The CEO of Qatar Rail has given an overview of the 14-year plan for the construction of Qatar Metro’s complex tunnel design ... More Information

Terratec TBM ready for Istanbul

Terratec TBM ready for Istanbul

Terratec has handed over a factory tested, customized 6.56 m-diameter EPB with versatile electric drive cutterhead designed to excavate the mixed geology along the alignment of Istanbul metro in ... More Information

Huge CBE moulds for Wuhan

Huge CBE moulds for Wuhan

French supplier CBE Group will provide 30 segment moulds for a 15.2 m external diameter combined road-subway tunnel in Wuhan, China. Read the press release and visit www.cbe-tunnels.com. CBE ... More Information

Turkey motorway financing

The EUR457 million financing agreement for Phase 2A of the Gebze-Orhangazi-Izmir motorway in Turkey has been signed. This section includes the bi-tube Selcukgazi tunnel, length 1,037 m. Overall, the ... More Information

Transjura A16 section opened

A 9 km-long stretch of A16 motorway between Bure and Porrentruy was inaugurated and opened to traffic on 21.08.2014. The last link of the A16 connecting the canton of Jura with France, this highway ... More Information

Submission deadline extended

The deadline to submit abstracts for the WTC 2015 in Dubrovnik, Croatia from 22 to 28 May 2015 has been extended to September 15th. Visit http://wtc15.com. 36/14. More Information

Schoema at Innotrans

Schoema at Innotrans

German specialist locomotive and rolling stock manufacturer Schoema will be presenting new technology at Innotrans 2014 in Berlin, September 23-26th. Don’t miss their exhibition stand, and ... More Information

BTS conference registration

BTS 2014 takes place at the QE 2 Centre in London on 23-24th September. Free online registration is available. Accompanied by “a very well attended exhibition, with many key people from the UK and international tunnelling sectors”. 33/14. More Information

TBM renaissance in Norway

TBM renaissance in Norway

A Robbins 7.2 m-diameter main beam TBM is at work on the Rossaga hydro project in Norway, the first Norwegian tunnel to be mechanically bored in 22 years. Watch the six-minute video and visit ... More Information

Terratec double in Delhi

Terratec double in Delhi

The first two of a scheduled 18 breakthroughs of Terratec TBMs have been accomplished on the CC-07 and CC-24 projects at New Delhi Metro Phase-III. Read the press release and visit ... More Information

Putzmeister at Expomina, Peru

Expomina 2014 takes place in Lima, Peru on 10-12th September. Putzmeister will be there on Stand E01 showing its 5 cu m capacity Mixkret 5 mixer/carrier designed for underground applications. Read ... More Information

City Rail Link update

City Rail Link update

New Zealand’s City Rail Link (CRL) will be built in two 3.4 km-long, twin tunnels up to 42 m below the city centre of Auckland. It will extend the existing rail line underground through ... 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