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Metro Vancouver decides immersed tube option superior to bridge
19 August, 2021
In a bid to resolve one of Metro Vancouver’s most notorious traffic bottlenecks, the Province of British Columbia, Canada is planning a new eight-lane immersed-tube tunnel to replace the George Massey Tunnel on Highway 99.

Contract awarded for Kvitsoy spur tunnel
19 August, 2021
Norway-based contracting joint venture Hæhre and Risa has won the 3.5km E15 Kvitsoy spur tunnel contract which forms part of the Rogfast project in the southwest of the country.

Lake Mead water level plunges to historic low
17 August, 2021
Created in the 1930s by the completion of the Hoover Dam blocking the Colorado River, Lake Mead has contracted to a historically diminished area, threatening the way of life of millions living in the West and Southwest US who depend on it for water.

Manila Water celebrates fourth aqueduct milestone
16 August, 2021
At a ceremony on August 14, Manila Water celebrated an excavation milestone on the US$108m NBAQ4 project, one of the Philippines' largest water-supply infrastructure schemes.

China’s largest slurry TBM gets to work
16 August, 2021
China Communications Construction Company (CCCC) has announced that one of its home-produced slurry TBMs – the largest of its type to have been developed in China – has started boring the East Sixth Ring Road Reconstruction Project in Beijing.

Tunnelling begins on Seattle water quality project
13 August, 2021
City of Seattle has announced that two tunnel boring machines have begun mining its Ship Canal Water Quality Project, designed to collect the combined sewer overflows that would normally end up polluting local water bodies.

Bids invited for Agra Line 1 metro tunnelling
12 August, 2021
As part of an open e-tender, Uttar Pradesh Metro Rail Corp is inviting bids from international parties for the design and construction of a tunnel, seven underground stations and ramps for the Line 1 metro in Agra, India. The tender value is approximately US$300m.

Cool talk on Hinkley Point C
12 August, 2021
Matthew Fowler of Balfour Beatty gave June’s British Tunnelling Society online lecture on the offshore cooling water tunnels at Hinkley Point C nuclear power station and the offsite construction of some of the critical components. Report by Ana Barbosa of Jacobs

Learning from Istanbul
12 August, 2021
Prof Dr Nuh Bilgin, Chairman of the Turkish Tunnelling Society, and Sinan Acun, TBM Group Manager, Kolin-Kalyon-Cengiz Joint Venture discuss the lessons learnt in the complex geology of two EPB-TBM drives to the new Istanbul Airport

Spraying for success
12 August, 2021
Dr Alun Thomas of All2plan Consulting outlines some of the rudiments of sprayed concrete and gives a few tips that could prove useful to young engineers – and maybe to those not so young

Testing time for FRS permanent sprayed concrete linings
12 August, 2021
Benoit de Rivaz of Bekaert outlines a few test methods used to evaluate the behaviour of fibre-reinforced shotcrete for permanent sprayed concrete linings and how their results can optimise design and construction processes

Water mist systems and Road tunnel ventilation
12 August, 2021
Ingo Riess of Riess Ingenieur, Zurich, Switzerland, discusses the benefits and effects of water-mist systems on tunnel fires in road tunnels

Keeping tunnels safe
12 August, 2021
The critical role played by certified smoke extraction motors in keeping tunnels safe is explained by Pekka Uusitalo, Key Account Manager for ABB Motors and Generators

Tunnel flood woes any ideas?
12 August, 2021
This month, in Zhengzhou, China, at least four people died when a road tunnel almost completely filled with water following a record 624mm of rain in 24 hours. During the same weather event in that city, a subway tunnel was deluged, with commuters up to their knees in water. In London, less dramatically but equally worrying, torrential rain and flash flooding put at least two stations out of action. And there are other instances elsewhere.

US Senate approves $1 trillion infrastructure bill
11 August, 2021
In a move which will hearten those despairing of low infrastructure investment levels in the US, Democrats and Republicans have at last come together to bring one of Joe Biden’s key objectives a step closer to fruition.

First Herrenknecht TBM breaks through in Brisbane
10 August, 2021
One of two Herrenknecht TBMs mining the Cross River Rail tunnels in Brisbane, Australia has holed through into an underground cavern beneath Roma Street to complete a section of tunnel running below the Brisbane River and the CBD.

West Gate Tunnel facing huge cost overrun
09 August, 2021
International toll roads operator and investor Transurban has confirmed that Melbourne’s West Gate Tunnel Project on which tunnelling has yet to begin is facing a potential US$2.42bn construction cost overrun.

MP disappointed by Stonehenge decision
06 August, 2021
Despite the recent High Court ruling against the legality of the government’s green light for building a tunnel near Stonehenge, John Glen, MP for Salisbury, said he was hopeful that all was not lost.

Serbia announces tender for tunnel No. 4
04 August, 2021
Serbia’s railway infrastructure body Infrastructura Zeleznice Srbije is inviting bids for the construction of a 3.3km-long rail tunnel in the Rasina municipality of central Serbia.

HS2 to employ innovative 3D printing process
03 August, 2021
In an effort to dramatically simplify construction and cut carbon by up to 50%, HS2 Ltd is to use an innovative graphene-reinforced concrete 3D-printing process to construct sections of the UK’s high-speed railway.