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The Oso, Washington Landslide occurred on the morning of Saturday, 22 March 2014, and claimed the lives of 43 people, making it the deadliest landslide disaster in United States history. The landslide initiated within an approximately 200-m-high hillslope comprised of unconsolidated glacial and colluvial deposits; it rapidly transitioned to a debris flow/debris avalanche that rapidly inundated a neighborhood of approximately 35 single-family residences. An intense 3-week rainfall that immediately preceded the event is believed to have played a major role in triggering the landslide. In this talk, I will present the findings of our Geotechnical Extreme Events Reconnaissance (GEER) Association scientific research team that performed a field reconnaissance of the Oso Landslide shortly after its occurrence. The talk will focus on observations made and data collected at the landslide site, but will additionally review regional and local geologic conditions, climate setting, eyewitness accounts, and land-use history. Finally, I will offer a preliminary hypotheses that address landslide initiation, mobilization, and runout behavior.
Joseph Wartman is the H. R. Berg Associate Professor of Civil and Environmental Engineering. The author of over 60 professional articles, Wartman edits the Journal of Geotechnical and Geoenvironmental Engineering and chairs the Geo-Institute (GI) Committee on Embankments, Dams, and Slopes. He is the recipient of several awards and honors including the U.S. National Science Foundation Faculty Early Career Development Award, the John J. Gallen Memorial Award for Technical Advancements from Villanova University, and the Geotechnical Engineer of the Year award from the Philadelphia section of ASCE. Prior to his arrival at the University of Washington in 2010, Wartman spent nearly 10 years at Drexel University, where he was a founding Co-Director of the Drexel Engineering Cites Initiative. In 2008, he was a Visiting Scholar at the Universitat Politècnica de Catalunya (UPC) in Barcelona, Spain. Before his career in academia, Wartman was a professional practitioner in California and Pennsylvania for 5 years. He received his B.C.E. from Villanova University, and his MS, MEng, and PhD degrees from the UC Berkeley. Wartman is a Registered Professional Engineer in Pennsylvania and California.
4:30-Planning Meeting, 5:30-Social Hour, 6:30-Dinner, 7:30-Program
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LocationBellevue Red Lion
11211 Main Street
Bellevue, WA 98004
United States
Categories
| Kid Friendly: No |
| Dog Friendly: No |
| Non-Smoking: Yes! |
| Wheelchair Accessible: Yes! |
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