Press Releases

New DT80G and DT85G Geotechnical Data Loggers

Release date: June 3, 2008

We are pleased to announce several new products from dataTaker, the new DT80G and DT85G Geotechnical Data Loggers along with the CEM20 Channel Expansion Module.

[Editor] (Photo from Datalogger Inc.) Click through for entire press release. [/Editor]


Project Related

Devil’s Slide Tunnel, Project Updates and Geotechnical Info

Devil’s Slide is an infamous landslide along California’s Highway 1 or Pacific Coast Highway near Pacifica, just south of the San Francisco Bay area. Caltrans’ Devil’s Slide Tunnel project is an effort to bypass that slide and make the heavily traveled roadway safe for drivers and to eliminate the maintenance and traffic hassles caused by slope failures blocking the road. We first covered the project back in September of 2007 when the tunnel portion of the project commenced. In that post, you can find a Google Earth KML File showing the location of the tunnels and the new bridges associated with the project. In this post, I’ll provide you with some updated progress information as well as some background on the geotechnical and other aspects of the project. More links and videos are at the end of the post.  (Photo by Kim Komenich, San Francisco Chronicle). […]

Press Releases

Yucca Mountain Moving Forward

US Nuclear Regulatory Commission – No. 08-106 – June 3, 2008


The Nuclear Regulatory Commission received an application today from the U.S. Department of Energy for a license to construct the nation’s first geologic repository for high-level nuclear waste at Yucca Mountain, Nev.

“We are ready to get to work on this challenging review,” said NRC Chairman Dale E. Klein. “Congress has given the NRC a strict timetable for reviewing this application, and I want to assure the American people that we will perform an independent, rigorous and thorough examination to determine whether the repository can safely house the nation’s high-level waste. The NRC’s licensing decision will be based entirely on the technical merits.” [Editor] Read on for the rest of the press release [/Editor]



No Picture
Press Releases

AMEC To Acquire Specialist U.S. Environmental and Geotechnical Consultancy

Plymouth Meeting, Pa. USA (June 4, 2008) AMEC, the international engineering and project management company, announces today that it has reached agreement to acquire Geomatrix Consultants, Inc. (Geomatrix) from its owner-managers for US$85 million. [Editor] Read on for the entire press release. [/Editor]



Dr. Jorj O. Osterberg – In Memorium

Dr. Jorj O. Osterberg, inventor of the Osterberg Cell or "O-Cell" used for drilled shaft load tests has passed away at the age of 93.  According to the Association of Drilled Shaft Contractors or ADSC, he died peacefully in his sleep on June 1, 2008. The geotechnical community has lost a truly legendary figure in our field.

Osterberg held degrees from Columbia, Harvard and Cornell Universities. He was a Professor Emeritus from Northwestern University. He was a former Chairman of the Soil Mechanics and Foundation Division of the ASCE, an Honorary Member of ASCE, and a member of the National Academy of Engineering.  He delivered the Terzaghi Lecture in 1985, and later received the Terzaghi Award.  He was one of the last surviving founding members of the International Society of Soil Mechanics and Foundation Engineering. He received the Distinguished Service Award from the Deep Foundations Institute and the Lifetime Achievement Award from the Association of Drilled Shaft Contractors. (Adapted from a bio for the 2001 Burmister Lecture, Department of Civil Engineering and Engineering Mechanics, Columbia University). Read on for more.


Project Related

Remediation begins on Center Hill Dam, Tenn.

LANCASTER — Months of explosive blasting are expected to begin at the site of Center Hill Dam next week as the U.S. Army Corps of Engineers prepares to begin construction work at the aging dam in Lancaster.


"The blasting will be to excavate a platform for construction, about 40 feet wide and will look similar to a road cut through a hill," [Corps Project Manager Linda Adcock] said. "Just the nature of how we grout, and moving equipment back and forth on the current slopes, which are as much as 40 percent and greater, is just really difficult. So for these reasons, for safety, quality, the accuracy and the consistency of the drill holes are much better done from a platform, they proposed this road cut type of a platform."

The drilling is for grouting remediation of the dam foundation. Story from Herald-Citizen, Cookeville, Tennessee.



Drilled shaft rig falls into hole – Iowa

On May 15 a drilled shaft rig operated by Mid America Drilling Corp was nearly swallowed by the 9-ft diameter hole it was drilling for a cell tower foundation near Harlan, Iowa. Fortunately nobody was injured and the truck did not suffer any significant damage.

In Arizona, the standard of practice is to use a temporary surface casing to prevent dangerous failures like that. I once saw pictures of a drilling contractor superindendent almost get sucked into a collapsing shaft, even with the temporary casing. Pretty scary stuff. Source: Harlan Tribune. (Photo by Samantha Bruck)