Perhaps you’ve heard of Bertha, the World’s Largest Tunnel Boring Machine or TBM? She’s currently working her way underneath Downtown Seattle, excavating the Alaska Way Bored Tunnel to replace the aging Alaska Way Viaduct. This $2 Billion megaproject is an incredible feat of engineering on so many levels. I was in Seattle in September for the Association of Engineering Geologists annual meeting, and was fortunate enough to attend a field trip to see the launch pit and Bertha before she began her tunnel drive. It was an unforgettable experience for this engineer! In this article I give an overview of the project and Bertha herself, discuss some of the geotechnical features, and share my photos and video. Check it out!
Written by George Annandale, ‘Quenching the Thirst: Sustainable Water Supply and Climate Change’ informs readers of the inadequacy of global water supply. The book outlines plausible options to safeguard future fresh water supply in spite of the uncertainties associated with climate change. With its vital insight and concrete guidance, the book is sure to resonate with readers around the world.
Denver, Colorado – The flow of clean water from taps in the western world creates the illusion of abundance, while, in fact, the small amount of fresh water available on earth is dwindling. The amount of fresh water is so small that all the fresh groundwater on earth can fit in a sphere with a diameter of only 42 miles. Similarly, if one would place the fresh water that instantaneously flow in all rivers on earth in a sphere, it will have a diameter of only 10 miles. A distance of 10 miles is shorter than the daily commuting distance of most people on earth.
Globally humans use three and a half times more groundwater than what is naturally replenished. While many people are aware of pending water shortages and are concerned about climate change impacts, few have solutions. Renowned engineer and humanitarian George Annandale has prepared a ground-breaking new book that explains the threatening problem in plain terms and also proposes plausible remedies. Quenching the Thirst: Sustainable Water Supply and Climate Change puts aside long-winded explanations and scientific terminology to help the public recognize and accept the world’s growing fresh water shortage, and understand how it may be resolved.
[Editor] Click through for the rest of the press release on this provocative new book by George Annandale. [/Editor]
Dr. Craig Benson of the University of Wisconsin delivered the 2012 Peck Lecture at the Geo-Institute’s Geo-Congress in Oakland. The GI just released a video of the lecture on their YouTube Channel. The title of […]
The Geo-Institute has released the 2013 Terzaghi Lecture onto their YouTube channel. “Skip” Hendron, Professor Emeritus at University of Illinois at Urbana-Champaign presented his lecture on “Improving Dam Safety with Lessons Learned from Case Histories […]
A large sinkhole near Dunedin, Florida destroyed two homes, but the occupants were not injured. The 90′ diameter by 50′ deep sinkhole opened up in an area of Florida that is prone to sinkhole activity. […]
Thousands of cute, cuddly rabbits like the one pictured here are having quite an impact on the Scottish Island of Canna. These critters, estimated to number around 16,000 (compared to the human population of 12 […]
Anderson Drilling has a unique tradition dating back to the founders of the compnay where they name most items in their fleet of foundation drilling equipment. They recently purchases a 48-inch Atlas Copco cluster drill […]
A foundation drill rig toppled over at a condo site in Sunny Isles Beach, Florida and struck an adjacent building. No immediate cause of the accident has been reported, but the region had been experiencing […]