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North American update

North American updateThe proposed replacement of the Alaskan Way viaduct in downtown Seattle with a 3.2 km-long bored double-deck road tunnel is symptomatic of the current trend in North America to ... More Information

Almaty metro line 1 to open in 2009

Almaty metro line 1 to open in 2009Line 1 of Almaty metro in Kazakhstan has been a long time coming. Started in 1988, some 7 km of tunnel were bored, only to be abandoned when cash ran out. A new ... More Information

Martin Herrenknecht becomes first European Mole

Martin Herrenknecht becomes first European MoleThe Moles Award 2009 has gone to Dr Martin Herrenknecht for his extraordinary service to the heavy construction industry, and in particular for his ... More Information

Update your shows diary with tunnelbuilder!

Update your shows diary with tunnelbuilder!Our Professional Tunnellers Diary, accessed through the front page button above, is continuously updated. Right now you will find contact details for 28 ... More Information

SELI success in southeast Europe

SELI success in southeast EuropeItalian contractor SELI has been active in Turkey and Greece, with TBMs in the ground in both countries.In December 2008, SELI commissioned to ILCI the new 4.88 ... More Information

Thermal Ceramics wins Bjorvika fireproofing contract

Thermal Ceramics wins Bjorvika fireproof lining contractSome 675 m of the centre section of Bjorvika tunnel comprises six immersed tube elements containing three traffic lanes in each direction. ... More Information

Recession lessons (9)

Recession lessons (9)"After 21 years of experience in the design, production and commissioning of high-tech equipment, the expertise and know-how of our teams is recognized both on the national and ... More Information

Update on Australia and New Zealand

Update on Australia and New ZealandThe Brisbane Airport Link feasibility study has been completed, and a jv of Thiess, John Holland, Macquarie has been selected as preferred contractor. And the ... More Information

Shenzhen metro line 3 progress

Shenzhen metro line 3 progressA trio of NFM Technologies 6.28 m-diameter EPBs has begun excavation of metro line 3 tunnels in Shenzhen, China. The first machine got underway on 14.10.2008 driving ... More Information

Robit Rocktools lead the way!

Robit Rocktools lead the way!We are particularly pleased to announce that Robit Rocktools of Finland is our first new client for 2009. For around 25 years, Robit has been providing high quality rock ... More Information

Recession lessons (8)

Recession lessons (8)"Despondency and constant negativism, attitudes which unfortunately abound today, are not recipes which are of much use to us in the future. Providing young and ambitious junior ... More Information

Marioff milestones

Marioff milestonesFrom its base in Vantaa, Finland Marioff produces its innovative HI-FOG® water mist fire protection systems for use in every corner of the Earth. Each system is tailored to the ... More Information

Update on Australia and New Zealand

Update on Australia and New ZealandAmongst major projects completed by end-2008 in Australia are the Gold Coast desalination plant with 2 x 3.4 m x 1.5 km outfalls bored by 2 off Herrenknecht TBMs ... More Information

Thermal Ceramics wins Bjorvika fireproof lining contract

Thermal Ceramics wins Bjorvika fireproof lining contractThe tender for fire protection at Bjorvika road tunnel in Oslo, see tunnelbuilder archive no/56, has been awarded to IFS, the official ... More Information

Poyry awarded Polish railway engineering contracts

Poyry awarded Polish railway engineering contractsPöyry has been awarded a EUR8.9 million engineering contract by PKP Polskie Linie Kolejowe SA for detail design and tender documentation for the ... More Information

Recession lessons (7)

Recession lessons (7)Don't be fooled by imitators! There is only one tunnelbuilder, and the only way to benefit from our 2,000+ readers/day is to promote your company at our websites. That way, ... More Information

Recession lessons (6)

Recession lessons (6)"We need to remake the banking system to better reflect the needs of business. They cannot simply go back to a reliance on mortgage lending." Edmund Phelps, Columbia University, ... More Information

STEC launches its own large-diameter slurry shield

STEC launches its own large-diameter slurry shieldShanghai Tunnel Engineering Company (STEC) has announced the launch on 26.12.2008 of its in-house designed and built 11.22 m-diameter slurry shield. ... More Information

Ganzstein closes Semmering gap

Ganzstein closes Semmering gapCompletion of the second 2.1 km-long tube at Ganzstein on the S6 Semmering Expressway will provide the final link on the motorway route between Lower Austria and ... More Information

Happy New Year for 2009!

Happy New Year for 2009!When we look back on 2008, we can be thankful that we work in the tunnelling industry, possibly the only part of the construction sector that is still largely intact. The ... More Information

Mont Sion tunnel opens to traffic

Mont Sion tunnel opens to trafficThe north stretch of the A41 highway between Villy-le-Pelloux/Saint-Martin-Bellevue and Saint-Julien-en-Genevois in the Upper Savoy region of the French Alps, ... More Information

VMT consolidates success in China

VMT consolidates success in ChinaHaving operated in China since 2006 as a service company supporting its TBM guidance systems, VMT has now achieved the official status of a Trading Company. So, ... More Information

California high speed rail programme management

California high speed rail programme managementThe proposed USD40 billion (US$1 = EUR0.72), 1,290 km-long California high speed rail system will serve San Franciso, Los Angeles and San Diego, with ... More Information

Recession lessons (5)

Recession lessons (5)"Just because we have a US$15 billion (US$1 = EUR0.72) budget deficit does not mean we should not have a high speed rail system. California should show leadership, and show the ... More Information

Halfway to Pinglu

Halfway to PingluAlpine Bau, a subsidiary of Spanish construction giant FCC, has reported that its Robbins hard rock double shield TBM excavating a EUR47 million section of the north main line of ... More Information

Palazzoli seeks commercial partner for Norway

Palazzoli seeks commercial partner for NorwayPalazzoli, a leading European industrial electrical equipment manufacturer with increasing activity in road and railway tunnels, is seeking a ... More Information

Engineering firms wanted

Engineering firms wantedArup, a global firm of designers, engineers, planners and business consultants is looking to source small and medium enterprises (SMEs) and black and minority ethnic ... More Information

Oraki diversion going well for Lovat

Oraki diversion going well for LovatContractor McConnel-Dowell has reported good progress on the 2.9 km-long Oraki Main Sewer Hobson Diversion project in Auckland, New Zealand where its Lovat TBM ... More Information

Recession lessons (4)

Recession lessons (4)"I am particularly proud to announce the adoption by the European Commission today of these 11 funding decisions totalling EUR1.7 billion. They will greatly contribute to making ... More Information

Underground Construction 2010 Prague

Underground Construction 2010 PragueConference Transport and City Tunnels co-organized by Slovak Tunnelling Association and Czech Tunnelling Association scheduled to take place from 14.06.2010 to ... More Information

New tunnel scaling rig from Atlas Copco

New tunnel scaling rig from Atlas CopcoAtlas Copco has launched a new version of its popular Scaletec scaling rig giving operators a stronger and faster scaling tool for use in tunnels. Click here ... More Information

Breakthrough in King County Brightwater Conveyance System

Breakthrough in King County Brightwater Conveyance System The Kenny, Shea, and Traylor Joint Venture has announced that "Luminita" their LOVAT RME229SE Series 22900 TBM has broken ... More Information

Three Robbins EPBMs to Improve Mexico City Drainage

Three Robbins EPBMs to Improve Mexico City DrainageMexico City, founded on what was once an island in the middle of a lake, is sinking at the rate of 10 cm (4 in) per year. Over the last 30 years, ... More Information

Breakthrough in King County Brightwater Conveyance System

Breakthrough in King County Brightwater Conveyance SystemThe Kenny, Shea, and Traylor Joint Venture has announced that "Luminita" their LOVAT RME229SE Series 22900 TBM has broken through and ... More Information

Banverket plans freezing at Hallandsas

Banverket plans freezing at HallandsasThe TBM advancing the east tube of the Hallandsas tunnel in southwest Sweden will enter the unstable Molle Back zone towards the end of 2009, some 1 km ahead of ... More Information

Daily bids and awards at tunnelbuilder.com!

Daily bids and awards at tunnelbuilder.com!After ten years providing weekly updates for our global readership, tunnelbuilder.com has now gone daily. This allows us to publish bids and awards much ... More Information

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Tunnelling News

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

KIB gets go-ahead for landmark Kuwait tunnel revamp project

On the key tunnel beautification project, Vice Chairman and CEO Raed Jawad Bukhamseen said: "This initiative reflects KIB's vision of supporting ... More Information

From hills to hope

As night falls over the northern highlands of Lesotho in early July, winter's chill sets in. Yet, the Polihali Transfer Tunnel construction site ... More Information

Tunnel boring machines reach Parramatta in major Metro West milestone

Tunnel boring machines have reached Parramatta, marking a major milestone in the construction of the Metro West project. More Information

Completion of hyperbaric excavated tunnel marks major milestone for Naples-Bari rail project

The construction of the Casalnuovo Tunnel, a critical and technically challenging segment of the high-speed railway line between Naples and Bari ... More Information

Multraship tugs support Antwerp Scheldt tunnel construction

Tugboats are supporting the construction of a motorway tunnel in the River Scheldt in Antwerp by towing and manoeuvring concrete structures and ... More Information

Europe's $45BN Mega Tunnels through the Alps

Discover the record-breaking network of tunnels being constructed beneath the Alps. This video explores the top 6 longest tunnels in the region, .. More Information

AFRY secures contract for Switzerland's Twann Tunnel project

Construction oversight of the Twann Tunnel in the country. The tunnel on the Lake of Bienne is intended to ease traffic congestion in Twann by ... More Information

Line 5 Tunnel Project: Public comments now open for proposal to build under Straits of Mackinac

"The purpose of the project is to facilitate the construction of a tunnel beneath Lake Michigan bottomlands to replace the Line 5 dual pipelines ... More Information

ECRL Breakthrough: Genting Tunnel Becomes SEA's Longest Rail Tunnel

Genting Tunnel's construction used both Tunnel Boring Machines (TBM) and traditional drill-and-blast methods. The TBMs, built in China and ... More Information

Sydney tunnel factory creates 700 manufacturing jobs

The factory will support two of the largest tunnel boring machines (TBMs) in the Southern Hemisphere, set to arrive later this year. Once ... More Information