Tunnel boring machine excavation rates have been a hot button issue in our industry recently — specifically, speeding them up…
Photos from Seattle SR99 Tunnel Project January 11, 2018, marked the long-awaited closure of Seattle’s Alaskan Way Viaduct – the…
A Chicago storm water diversion tunnel designed to correct a chronic flooding problem that has plagued the city’s Albany Park…
On Aug. 29, 2018, a 30.4-ft diameter Robbins Crossover (XRE) TBM crossed the finish line at the Akron Ohio Canal…
Since it was established in 1996, Sound Transit – the regional transportation agency for the Seattle and Central Puget Sound…
Much has been made worldwide of the difference in performance between new and rebuilt TBMs. Worldwide, a bias exists that…
Each year, TBM: Tunnel Business Magazine takes a look at the coming year by polling a sampling of tunneling professionals. How is the year ahead shaping up? What are the emerging trends?
Sewer utilities are not often among those who shake the foundation of conventional thinking. DC Water, however, took a new approach to constructing its Blue Plains Tunnel and proved that utilities can also be innovative and creative.
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.