Volume: 21 | Issue: 1 | Download
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Retracing Bertha's Journey
We take a look back at Seattle's historic SR 99 Tunnel through pictures. (Photos by Catherine Bassetti).
Tunnel Business Magazine: Vol. 20, № 6 (December 2018)
Volume: 20 | Issue: 6 | Download
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2019 Tunneling Industry Directory
A mined portion of the Ulriken Tunnel, the first major traffic project in Norway to be completed with a Gripper TBM. (Photo: Herrenknecht.)
Tunnel Business Magazine: Vol. 20, № 5 (October 2018)
Volume: 20 | Issue: 5 | Download
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Rubber City Renewal
Robbins Crossover TBM Helps Clean Up Akron Waterways
Tunnel Business Magazine: Vol. 20, № 4 (August 2018)
Volume: 20 | Issue: 4 | Download
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Tunnel Achievement Award Winner — Northgate Link Extension, Seattle, Washington
Tunnel Business Magazine: Vol. 20, № 3 (June 2018)
Volume: 20 | Issue: 3 | Download
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Weighing the Options: Is Industry Bias Toward New Machines Limiting?
Tunnel Business Magazine: Vol. 20, № 2 (April 2018)
Volume: 20 | Issue: 2 | Download
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Backed by voter-approved funding, the Los Angeles County Metropolitan Transportation Authority (Metro) is busy building out its network.
Tunnel Business Magazine: Vol. 20, № 1 (February 2018)
Volume: 20 | Issue: 1 | Download
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The first Variable Density TBM was used for the 9.5-km long underground section of the the first line of the Klang Valley MRT Project in Greater Kuala Lumpur.
Tunnel Business Magazine: Vol. 19, № 6 (December 2017)
Volume: 19 | Issue: 6 | Download
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Nora, the Robbins TBM that will build the Delaware Bypass Tunnel for NYC DEP, is assembled in the 845-ft deep shaft in Newburgh, N.Y., on Oct. 25, 2017.
(Photo courtesy NYC DEP.)
Tunnel Business Magazine: Vol. 19, № 5 (October 2017)
Volume: 19 | Issue: 5 | Download
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Modern TBMs, such as this Herrenknecht TBM used for the Istanbul Strait Crossing in Turkey, can often excavate faster, with less risk and less surface settlement, thus saving money in the long run.
Tunnel Business Magazine: Vol. 19, № 4 (August 2017)
Volume: 19 | Issue: 4 | Download
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The Blue Plains Tunnel in Washington, D.C., is the recipient of the 2017 Tunnel Achievement Award for Project Excellence.
Tunnel Business Magazine: Vol. 19, № 3 (June 2017)
Volume: 19 | Issue: 3 | Download
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Bertha — the world's most famous tunnel boring machine — reached her final destination amongst much fanfare on April 4. (Photo: Washington State Department of Transportation.)
Tunnel Business Magazine: Vol. 19, № 2 (April 2017)
Volume: 19 | Issue: 2 | Download
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A Robbins Crossover XRE TBM was chosen due to highly variable geology present on Mexico City's TEP II project. (Photo by The Robbins Company).