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December 10, 2012

Completed primary Sprayed Concrete Lining (SCL) works for Tottenham Court Road Station Upgrade Project (TCRSUP), London, UK

Tottenham Court Road Station (TCRS) is a London Underground (LU) station situated in central London. The station serves as an interchange between the Central and Northern Lines.

Over 150,000 passengers use the station daily and with the completion of Crossrail in 2017, passenger numbers are expected to increase to over 200,000.

Improvements to the Tube station will provide: step-free access from street level to all platforms and interchanges via the enlarged and new ticket halls, additional access points to the Northern and Central Line platforms to reduce congestion, additional escalators serving the Northern Line and five new lifts, as well as future connections to the Tottenham Court Road Crossrail Station.

May 01, 2012

The detail in the Devil's Slide, Pacifica, CA, USA

On January 18, 2011, excavation of California Department of Transportation’s Caltrans) twin Devil’s Slide bores was successfully completed on State Route 1. This section of Route 1 is on an unstable mountainside that has a long history of road closures due to landslides.

November 01, 2009
TunnelTalks.com By: Paula Wallis

Tunnel collapse in Albania closes highway

Dr. Sauer of Austria and Müller & Hereth of Germany to analyze technical issues in the tunnel. "The experts are now engaged in developing a plan to address permanent stabilization of the area.

Four months after its celebrated inauguration that brought together the Prime Ministers of two countries and hundreds of cheering public, partial collapse of a highway tunnel in Albania has delayed the opening of the project to traffic.

September 15, 2004

Finally good news at Devil's Slide

By signing a promise into law, Gov. Arnold Schwarzenegger gave the green light to the Devil's Slide tunnel project Thursday, clearing the way for Caltrans to begin work on a project that has survived eight years of planning and negotiation. 
"Hooray!" said County Supervisor Rich Gordon, summing up the feelings of those who have been working on the project for close to a decade or more. "The real celebration is when the ribbon is cut, but I'll take today's victory."

June 10, 2004

Privatized Dulles Rail Wins DOT Go-Ahead

Six years in the proposing, a plan to build a 23-mile, partly private rail line in northern Virginia got its most significant boost June 10 when the state received the green light from the Federal Transit Administration to begin preliminary engineering. It then signed a contract with Bechtel Corp. and Washington Group International, the project’s joint venture champion. The line, which will connect an existing Washington, D.C., Metro subway line to Dulles International Airport, could cost as much as $4 billion. It is the first rail project pushed under Virginia’s decade-old public-private transportation law and could be a harbinger of how future transit jobs will be achieved as public funds shrink or face delays, observers say.  Click here to view chart

May 13, 2004

Singapore Tunnel Team May Have Cut Corners

Preparations are beginning for a formal inquiry into the April 20 collapse of a Singapore mass-transit tunnel excavation in which four workers were killed. For the record, all parties on the project are limiting their comments to bland disclaimers, if they are commenting at all. But knowledgeable sources are pointing to price competition engendered by the design-build project delivery as a contributing factor in the accident.

May 01, 2004

Obayashi Low Bidder for Atlanta West Area CSO

The joint venture of Obayashi/Massana was the apparent low bidder for Atlanta's West Area CSO Storage Tunnel and Pumping Station project. Five prequalified contractors submitted bids for the project, which was divided into two contracts. Bidders could choose to bid either contract, or submit a combined bid.

May 01, 2004

Beacon Hill prequalifiers

Three groups have prequalified for the design-bid-build Beacon Hill underground section of the 14-mile, initial segment of Seattle's Sound Transit LRT.

January 01, 2004
Civil Engineering, January 2004, Volume 74, No. 1

Seattle Light-Rail Construction Begins

Just a few months after opening its first light-rail line-a 1.6 mi (2.6 km) segment in Tacoma, Washington-Sound Transit, the mass transit agency for this region of the state, has begun construction on a longer, north-south system in Seattle that could ultimately link communities all the way from the city's northern suburbs to Sea-Tac International Airport. The partially underground line will include one of the deepest stations ever to be excavated in soil in North America.

December 01, 2003

Pelosi secures federal money for S.F. subway

The Municipal Railway stands to reap a windfall that could total more than $500 million for its planned Central Subway, thanks to Rep. Nancy Pelosi, who got a special provision for San Francisco inserted into the $820 billion appropriations bill the House passed this week.

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