Latest from Tunnels and Tunnelling


Promotions at Hayward Baker
05 May, 2016 USA – Hayward Baker Announced staff promotions and new hires in its Atlanta office on April 27. James Dickinson joined the geotechnical construction company as the southern states shoring division manager, Michael Morello has been promoted to operations manager, and James Weldon joined Hayward Baker as a project manager within the Southern States Ground Improvement Division.
  • Northgate Link TBM1 to finish final drive
    USA – Sound Transit’s tunnelling contractor, Jay Dee/Coluccio/Michels (JCM) joint venture will finish its remaining Northgate Link tunnel drive, of six, with TBM #1, the transit authority announced April 29.
  • Alaskan Way Viaduct closes for two weeks of tunnelling
    USA - The Washington State Department of Transportation (WSDOT) closed the SR 99 Alaskan Way Viaduct on April 29 for two weeks, the period of time when the TBM mining the replacement road tunnel passes under the structure.


Underground innovation
03 May, 2016 Southern Nevada is already dealing with the issues of water scarcity and is investing in underground infrastructure to prepare for the future. Erika Moonin engineering project manager with the Southern Nevada Water Authority explains the capital improvement projects underway at Lake Mead
  • Capital construction
    Freeing Ottawa of a bottleneck in its downtown, a P3 is in charge of developing a new light rail line. Speaking with its team, Nicole Robinson reports on the project’s progress
  • Growth spurt
    The Bowness offload sanitary Trunk project will be operable this summer, well ahead of schedule. choosing trenchless technology instead of open cut construction has made this award-winning project a major success, Nicole Robinson reports
  • Myth Busting
    With increased drought conditions in areas of desert climate as well as more public awareness about groundwater depletion in more verdant regions, conversations across North America focus on clean water and how it will be sourced, shared and supplied
  • Milestone in Montreal
    The TBM mining on the Rosemont Reservoir Project made its historic breakthrough last fall, Desiree Willis, technical writer for The Robbins Company reports


Think global act local
28 April, 2016 WITH THE RETURN of World Tunnel Congress (WTC) to North America this month there is an opportunity to promote the innovation and expertise of Canada and the US to the wider underground construction industry. Here’s what you should know about North America, by the numbers.
  • Easy come easy go
    Relief was probably the general reaction when Seattle Tunnel Partners had been given permission to resume tunnelling by the Washington State Department of Transport.
  • Enter the nimby
    A public consultation has opened for a new road crossing of London's River Thames. The idea is for a new tunnel to the east of the city to relieve the enormous traffic strain on the existing Dartford Crossing. For over 50 years, the Dartford Crossing has provided the only road crossing of the Thames east of London. This spectacular choke point, partly caused by tollbooths, consists of two bored tunnels and a bridge. Highways England claims 50 million crossings per year, of which 25 per cent are freight vehicles. The freight proportion is predicted to increase to 34 per cent by 2041.
  • Think global act local
    As the magazine went to press the International Tunnelling and Underground Space Association (ITA) released statistics about emerging demand for tunnelling as well as the need to bring young engineers into the industry. The report says between 2009 and 2013 the global tunnelling and drilling equipment industry reached a 4.9 per cent annual growth rate, which will likely be sustained through to 2018. Much of this is due to demand in Asia, which had nearly half the market share in 2014.
  • Our best chance
    THE TAIL end of 2015 saw an historic agreement to combat global carbon emissions. The hope is to keep global warming below a 2oC threshold (actually aiming for 1.5 oC) and in so doing save the planet. The 2015 United Nations Climate Change Conference Agreement, better known as the Paris Agreement, or COP 21, has been celebrated by pundits and politicians worldwide, despite some of the legally binding phrasing being edited out.