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October 2014 Tunnel Project Updates

CALIFORNIA Menlo Park/Newark Bay Tunnel Michels/Jay Dee/Coluccio JV The first tunnel under San Francisco Bay went into service in October after successful hydro tests and disinfection of the 5-mile tunnel over five weeks. The tunnel completes the “lifeline”...

Bullshit in Tunneling, Revisited

I co-authored an article for this magazine in April 2010 titled, “Bullshit As Applied to Tunneling Projects.” One of the reasons for writing that article was an admiration of the 2005 book, “On Bullshit,” by Dr. Harry G. Frankfurt, a Professor of Philosophy...

Northgate Link Project the Latest in Seattle’s Transit Bui...

Building Link in the Chain With traffic that regularly makes the top 10 lists, Seattle’s subway system is a highly anticipated transportation option. The city’s latest dig will further extend the Link light rail system from the University District to the Northgate...

Approach to Tunnel Design for Fire Loads

Emerging Best Practices in Tunnel Liner Design Can Save Lives, Preserve Structural Integrity By Sanja Zlatanic Minimizing the impact of fire on tunnel liner is a top priority for the worldwide engineering community. In the past decade, the industry has made significant...

One Tunnel, Two Pipelines

Pipe Jacking Under I-5 Near Seattle Nets Savings for Owner By Laura Anderson In August, a Washington State trenchless contractor completed an installation of 540 lf of steel casing to house new gravity water and sewer lines under an active 10-lane interstate in...
recent from Editor's Message Education and Training in Tunneling, Continued
Education and Training in Tunneling, Continued In this space in the August issue, I discussed education and training in the tunneling industry, specifically some of the themes that came out of a roundtable discussion we held on that topic at NAT. As a follow up, in this issue we take a look at how the Colorado School of Mines is helping to meet the needs...
recent from People Drooff Named President of Hayward Baker
Drooff Named President of Hayward Baker Hayward Baker Inc. (HB), North America’s leader in geotechnical construction, announced the appointment of a new president, along with several other senior leadership staff appointments. Eric Drooff has been named the sixth president of Hayward Baker. Drooff, hired by HB in 1992 as a Project Manager, has...
recent from Technical Papers 170 Feet Below Columbus
170 Feet Below Columbus By Lucian P. Spiteri, P.E., Paul C. Schmall, Ph.D., P.E., Mark Gentile, P.E., and Michael A. Nuhfer, P.E. The OSIS Augmentation and Relief Sewer (OARS) project is a 23,300-ft long, 20-ft finished diameter combined storm and sanitary overflow relief sewer mined through dolomite and limestone rock...
recent from Product Showcase Product Showcase – April 2014
Product Showcase – April 2014 Brookville Equipment Expands Portfolio Brookville Equipment Corp. expanded its mining product portfolio in 2013, offering up custom haulage and transportation solutions for mining customers in the U.S. market and abroad, including the production of its largest underground mining locomotive since the company...