Bertha – the world’s most famous tunnel boring machine – reached her final destination amongst much fanfare on April 4, breaking through into the north portal near Seattle Center and the Space Needle.
Mexico’s Túnel Emisor Poniente (TEP) II is a study in transitions—much of the tunnel travels through andesite with bands of tuff, below mountain ranges and through fault zones.
Each year, TBM publishes a tunneling industry outlook by polling a sampling of tunneling professionals. Most agree that demand is high for tunneling.
The City of Fort Collins, Colorado, was faced with a challenging repair to the Michigan Ditch high in the Rocky Mountains. Tunneling provided the solution.
Sound Transit Forging Ahead Since it was created 20 years ago, Sound Transit has been actively engaged in building out…
A $2.1 billion public-private partnership (P3), the Elizabeth River Tunnels project is one of the largest P3 projects in the United States and the first P3 tunnel project. The ERT mega-project involves the development, finance, design-build, and operation and maintenance of four regional transportation infrastructure assets including a new two-lane tunnel.
Providing a reliable source of drinking water can be a challenge for any city. But when that city is densely…
Mexico’s underground is in flux, and the majority of the changes are for the good. The tunneling market, which is…
Building Big Given that AECOM was founded in 1990, one might suspect the multinational construction, design-engineering and management-support services firm…
Recently, TBM has started each year with a poll of experts to get a feel for where the industry is…