What will 2015 hold for the tunneling industry? Tunnel Business Magazine asked a panel of 4 industry experts that question. The panel consisted of a Colorado School of Mines Professor as well as reps from Black and Veatch, AECOM, and Kenall Manufacturing. In general they seem to agree that there are opportunities in the US for large combined sewer outfall (CSO) projects, water distribution projects, and even high-speed rail, particularly in California. [Source: Check out all of the analysis at Tunnel Business Magazine]
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Bertha Demo Period Done, Resumes Mining
The Bertha tunnel boring machine has resumed chewing away beneath Seattle after a ‘suspension for cause’ order from WSDOT shut it down in January following two safety incidents. The BTM began tunneling with some conditions […]
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California unveils $24 billion, 40-year water tunnel plan
California Governor Jerry Brown announced this summer that the state will move forward with plans for two multi-billion dollar water supply tunnels. Twin 56-km long (35 miles) tunnels will be constructed to convey water from […]
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Video: Ground Freezing and the Hetch Hetchy Water Supply Tunnel
This is a great video showing the application of ground freezing to deep excavations in unstable soil and high groundwater table. It’s also a nice overview of the reason the Hetch Hetchy project was undertaken, […]