recent posts

Final Proposals Received for Parallel Thimble Shoal Tunnel...

On April 29, the Chesapeake Bay Bridge and Tunnel District received Final Technical Proposals and Price Proposals for the Parallel Thimble Shoal Tunnel Project. The project is being procured under a design-build methodology. Four teams were shortlisted in August 2015,...

Compact Solutions for First Street Tunnel

Torrential rain. Sewage-filled streets. Submerged vehicles. Flooding as much as three times in a matter of two weeks. These are some of the issues that affected two low-lying neighborhoods in Washington, D.C. And now, after nearly a century of flooding, the...

Hayward Baker Announces Staff Promotions

Hayward Baker Inc., a North American leader in geotechnical construction, announced that James Dickinson has joined the company as the Southern States Shoring Division Manager in its Atlanta office. In addition, Michael Morello has been promoted to Operations Manager,...

Salini Impregilo signs $880 Million Rail Contract in Perth

Salini Impregilo, Italy’s leading infrastructure group, has signed a $880 million ( AU$ 1.176 billion) contract to design, build and maintain an underground passenger rail line in Perth, Australia.

Robbins Crossover TBM Breaks Through in Mexico City

On March 29, 2016, North America’s first Crossover TBM broke new ground in Mexico City. The 8.7-m (28.5-ft) diameter Robbins XRE – a cross between a rock TBM and an EPB – emerged into an intermediate shaft at Túnel Emisor Poniente (TEP) II.
recent from Editor's Message March April Publisher’s Message — World Tunnel Congress Coming to the USA
March April Publisher’s Message — World Tunnel Congress Coming to the USA April 22-28, the World Tunnel Congress (WTC) will convene in San Francisco, marking the first time the International Tunneling Association (ITA) has held its annual event in the United States since 1996, when it was held in Washington, D.C. It is a time for the United States to showcase some of its many contributions to tunneling technology made over the past two decades.
recent from People Avanti Welcomes Swanson
Avanti Welcomes Swanson Avanti International recently announced the addition of Jacob Swanson to its staff. Swanson has over 10 years of injection grouting experience.
recent from Technical Papers Microtunneling or Guided Boring?
Microtunneling or Guided Boring? How to choose the most appropriate method for your project The debate regarding what method of mining to select for infrastructure pipe installation continues to grow. Debate of construction means and methods is healthy for the industry.  However, an accurate and realistic discussion of means and methods...
recent from Product Showcase Normet Introduces Alpha 1430 Kit
Normet Introduces Alpha 1430 Kit Normet, the leader in sprayed concrete solutions (equipment, construction chemicals, expertise), expands its offering array and gives customers ever-increasing flexibility in tailoring their tunneling operations for safety through mechanized spraying and productivity with custom equipment configurations for the global industry.