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The doors to success
17 June, 2021
Bernd Hagenah, Sean Cassady, Jesse Harder and Ana Ruiz-Jimenez of HNTB Corp discuss the benefits of and considerations for the implementation of platform edge doors in modern underground transit and metro rail systems

Spotlight Seattle
14 May, 2020
The fast-growing city is under pressure to provide congestion relief to crowded streets and affordable housing. New tunnel projects are being designed to do both, Nicole Robinson reports.

Spotlight Seattle
04 March, 2020
The fast-growing city is under pressure to provide congestion relief to crowded streets and affordable housing, Nicole Robinson reports. New tunnel projects are being designed to do both

One big bore
22 November, 2018
Rail projects across North America are considering single tunnel drives, Nicole Robinson reports

One big bore
05 September, 2018
Rail projects across North America are considering single tunnel drives, Nicole Robinson reports

Seattle Start up
25 May, 2016
repair work for giant TBM “Bertha" finished earlier this year. Patrick Reynolds reports on the two-year-long process

WTC 2016
01 April, 2016
Registration is open for the worldwide tunnelling event of the year, with as many as 600 unique technical presentations, short courses and breakout sessions, and more than 200 exhibitors from around the world. Here’s a look at the highlights planned for this year’s conference and be sure to visit Tunnels & Tunnelling at Booth 1215 at this year’s WTC in San Francisco.

Seattle start up
18 February, 2016
Repairs are finished for giant TBM “Bertha". Patrick Reynolds reports on the two-year-long process

City of expansion
27 June, 2014
By the end of the year there should be three separate tunnelling contracts underway in Los Angeles to expand the region’s public transportation system. Nicole Robinson looks at each project.

Seattle Surge
19 February, 2013
The west coast of the US is home to a strong tunnelling market. Tunnels North America looks at Seattle in particular this issue, but let there be no doubt, other cities in the region are just as busy underground, Nicole Robinson reports

Devil’s Slide diversion drive
23 March, 2010
A bypass tunnel on the scenic California coast is well advanced to avoid the Devil’s Slide landslide area on the famous scenic Highway One route, reports Adrian Greeman

People & Places
14 January, 2002

Resilience and renovation in the US
01 December, 2001
Tunnelling contractors in the US may be facing ever increasing pressures, but projects are still thick on the ground. Dr Gary S Brierley, president Brierley Associates, LLC, Hugh P Caspe, PE, national director of tunnel practice, HNTB, and Randall J Essex, PE, director of tunnelling, Hatch Mott MacDonald, take a look at how the industry is faring in the US