November 08, 2007
Devil’s Slide Tunnel Excavation Begins

Excavation is underway on what will be California’s longest highway tunnel. Read More

August 22, 2006
DSC, as Part of the NTP JV, Selected to Provide the SEM Design for University Link in Seattle, WA

Dr. Sauer Corporation (DSC), working as a subconsultant under the North Link Transit Partners Joint Venture (NTP JV), was selected as the SEM tunnel designer for the University Link Project in Seattle, WA. 

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August 18, 2006
SEM Mining and TBM Tunneling progress at Sound Transit's Beacon Hill Station

Construction is well under way at Sound Transit's Beacon Hill Station: Both shafts, the Main Shaft and the Ancillary Shaft have been constructed, and the Concourse Cross Adits North and South have been excavated. At present, tunneling of the Platform Tunnels is under way.

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July 31, 2006
ASCE Panel Recommends Tunneling through Tysons Corner

The Govenor of Virginia requested an independent panel of ASCE engineers determine the feasbility of a tunnel through Tysons Corner.  After a 90 day deliberation, the panel not only determined the tunnel option feasible, they stated the "tunnel option would provide greater positive long-term economic and business impacts than the aerial option".     

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July 15, 2006
URS/Dr. Sauer Corporation JV Awarded the Construction Inspection Services Contract for Devil’s Slide Tunnel

The URS/Dr. Sauer Corporation JV has been awarded the Construction Inspection Services contract for the Devil's Slide Tunnel Project in California.  The tunnel will be constructed using the New Austrian Tunneling Method (NATM).  

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June 02, 2006
NAT 2006 in Chicago

North American Tunneling 2006 Conference & Exhibition
June 10- 15, 2006
Chicago, Illinois

Extreme Tunneling: Improving Progress, Cost, Performance, and Safety

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November 01, 2005
Transportation & Mobility Conference

Third Annual Houston Transportation and Mobility Conference on December 1st and 2nd, 2005.

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August 17, 2005
Urban Traffic Arterials – True Cost?

Traffic Planners in urban areas have three options for establishing new arteries or expanding existing lines: to locate them at grade, to elevate them or to put them underground.

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August 16, 2005
Recent Advances in Geotechnical Engineering Seminar

To achieve and maintain competency skills, a geotechnical engineer must keep up with advancements, trends and developments in many areas of practice, inlcuding automated data collection, field testing, composite/light weight materials, alternative foundation systems and innovative tunnel construction techniques.

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July 11, 2005
Tunneling starts at Beacon Hill

On June 27th, excavation of the first SEM/NATM tunnel of the Beacon Hill Station commenced.

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