recent posts

Jacobs Associates Opens Sydney Office

Jacobs Associates, a leader in underground design and construction management, has opened an office in Sydney, Australia. The 225-employee firm, headquartered in San Francisco, has the largest concentration of underground engineering experts in the industry. The new...

Record Pilot Tube Bore at Mobile Regional Airport

A great deal was riding on one shot at a record pilot tube bore under a taxiway at Mobile Regional Airport in Alabama recently. The ideal combination of geology and operator skill allowed for pinpoint accuracy on a 595-ft pilot tube guided auger bore drive for a...

Parsons Acquires Delcan

Parsons announced that it has acquired Delcan, an international multidisciplinary engineering, planning, management and technology firm that provides a broad range of integrated systems and infrastructure solutions to the transportation market. Delcan is a strategic...

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...

Hayward Baker’s Welsh Receives 2014 OPAL Award

Hayward Baker Inc. (HB) announced that retired vice president Joseph Welsh is a 2014 recipient of the prestigious Outstanding Projects and Leaders (OPAL) Award. The OPAL Award, established in 1999 by the American Society of Civil Engineers (ASCE), recognizes Welsh’s...
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...