recent posts

SR 99 TBM to Resume Digging in March 2015

Seattle Tunnel Partners, the design-build contractor for the SR 99 tunnel project in Seattle, on April 21 released a new schedule that shows the tunneling machine will resume digging by the end of March 2015, according the Washington State Department of Transportation...

World Tunnel Congress 2014 Heading to Brazil, May 9-15

The Brazilian Tunnelling Committee (CBT) of the ABMS (Brazilian Association of Soil Mechanics and Geotechnical Engineering) and the International Tunnelling and Underground Space Association (ITA) are organizing the World Tunnel Congress 2014, to be held in Iguassu...

NFM Technologies Signs First Saudi Arabian Contract

NFM Technologies has just signed an agreement with the Metro Riyadh Line 3 Ltd. consortium to supply a 10.16-m diameter tunnel boring machine to excavate the Red Line of the Saudi capital’s metro system. The consortium features companies such as Impreglio SpA,...

Hayward Baker Performs Ground Improvement Work on Ohio Riv...

Hayward Baker has been performing ground improvement work on the Ohio River Bridges Project (Downtown Pursuit) along Interstates 65 and 64 in downtown Louisville since June 2013. The project is being performed for the Kentucky Transportation Cabinet and the Indiana...

ABC Industries Ventilation Sales Reorganization Announced

In response to the ever-changing ventilation marketplace and to better align the sales force with broader strategic sales initiatives, ABC Industries appointed Will Linnemeier to Vice President of International Sales and Business Development and Jennifer Kussmaul to...
recent from Editor's Message Tunneling in the Spotlight
Tunneling in the Spotlight Unless you have been living in a tunnel (in which case you probably wouldn’t be reading this) you have no doubt heard about the problems facing the SR 99 tunnel in Seattle. To recap, the project is being delayed due to issues with seals on the TBM’s main bearing. The machine was initially stopped on Dec....
recent from People Q&A – Bradford Townsend
Bradford Townsend serves as Vice President in Parsons’ Bridge and Tunnel Division responsible for technical direction and management of alternative project delivery. Prior to joining Parsons, his work experience includes serving as deputy chief engineer of the $20 billion Taiwan High-Speed Rail Project as...
recent from Technical Papers Innovations in Precast Concrete Segmental Linings: Case Studies from Around the World
Innovations in Precast Concrete Segmental Linings:  Case Studies from Around the World Since their introduction, precast concrete segmental linings have continued to develop and evolve.  In this article, Jon Hurt, Tunnels Practice Leader at Arup, provides an overview of four projects, highlighting ongoing innovations to meet project challenges.  The continued trend toward steel fiber...
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...