June 2, 2016, 5am PDT
The Gotthard base tunnel under the Swiss Alps is an "engineering tour-de-force" at 57.5 kilometres in length. Its nearest rival is the Seikan Tunnel in Japan, at 53.9 km.
The Globe and Mail (Toronto)
April 14, 2016, 7am PDT
A highly controversial project that would build a system of tunnels to divert water from the Sacramento River, and a signature project of California Governor Jerry Brown, now finds itself in trouble with federal investigators.
April 4, 2016, 1pm PDT
The planning process has revealed more modest potential benefits for the highly controversial proposal to spend $15 billion on tunnels to ease environmental strain on the Bay Delta.
February 6, 2016, 11am PST
London's mayor has proposed a solution to tackle the city's congestion and an expected population increase of 20 percent by 2030: build a system of tunnels to alleviate automobile traffic.
August 25, 2015, 10am PDT
The public comment period has ended on one of Southern California's most persistent planning controversies—a proposal to connect the I-710 Freeway between Pasadena and Alhambra. The current plan calls for a long underground tunnel.
San Gabriel Valley Tribune
February 10, 2015, 8am PST
In a California town, birds are dying, something Daniel Ebuehi attributes in large part to faulty design.
January 12, 2014, 1pm PST
The city of Miami is constructing its first tunnel, which will ease traffic congestion in the area, at a price of $1 billion.
November 4, 2013, 6am PST
They are fees, ruled the court on Oct. 31, overturning a May 1, Portsmouth circuit judge ruling in a major victory for both tolling and public-private partnerships. It allows tolls to fund the Elizabeth River Crossings, VDOT's P3 tunnels project.
August 23, 2011, 8am PDT
Russian officials are pushing a plan to build a tunnel connecting Russian territory to the United States.
February 21, 2011, 5am PST
Construction is nearing completion on the longest railway tunnel in the world.
February 11, 2011, 8am PST
One plan to build a tunnel under the Hudson River from New Jersey to New York was killed by Governor Chris Christie, but New Jersey's senators have gotten behind a new plan to do the same thing.
January 9, 2011, 11am PST
Contracts have been signed on a tunnel project to replace the earthquake-damaged Alaskan Way Viaduct in Seattle. But opponents are still trying to stop the project.
January 6, 2011, 5am PST
A new video features urban explorer Steve Duncan as he adventures in the abandoned subway tunnels beneath New York City.
October 18, 2010, 10am PDT
The two ends of the Gotthard Base Tunnel beneath the Swiss Alps are on the verge of connecting, marking a major milestone in the construction of what will be the world's longest transportation tunnel.
October 17, 2010, 9am PDT
Giant robot "worms" have been tunneling towards each other through opposite sides of the Gottard Massif for years. On Friday, they finally met, completing the 19-mile tunnel.
October 8, 2010, 8am PDT
New Jersey governor Chris Christie has cancelled a proposed $8.7 billion tunnel under the Hudson connecting his state with New York City.
September 1, 2010, 9am PDT
Jerry Soverinsky picks the most ambitious transportation projects of the century so far, from a tunnel in Turkey to an ice road in Canada.
May 27, 2010, 10am PDT
Columnist Roger K. Lewis says Washington D.C. has a lot to learn from New York City in terms of reusing old and outdated infrastructure.
December 30, 2009, 2pm PST
<em>Triple Canopy</em> translates a Chinese interview with Shu Yu, one of the world's foremost underground urban planners. He talks about the potential of underground space for urban habitation.
December 15, 2009, 12pm PST
Seattle's new mayor come January, Mike McGinn, a former Sierra Club activist, withdrew his campaign threat to veto the highway tunnel planned to replace the Alaska Way Viaduct.