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Puget Sound AEG Dinner Meeting
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When: Thursday, February 21, 2019
5:30 PM
Where: Best Western Executive Inn
200 Taylor Avenue North
Seattle, Washington  98109
United States

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Thursday, February 21, 2019 — AEG Dinner Meeting

Topic:        The Oso Landslide: Why It Was So Destructive and What Initiated It         
Speaker:    Rupert G. Tart, Jr, PE, DGE, LMASCE
5:30 – Social Hour
6:30 – Dinner
7:30 – Presentation
Place:        Best Western Executive Inn, 200 Taylor Avenue North, Seattle, WA 98109, 206-448-9444
Dinner:     Plated dinner (choose between the following when registering for the meeting):

  • Penne Primavera, Fresh Seasonal Vegetables Sautéed and tossed in a White Wine Garlic sauce with Penne Pasta, topped with shaved Parmesan
  • Chili and Chocolate Rubbed Pork Loin Medallions, Served with Mango Salsa, Cuban Rice and Seasonal Vegetables
RSVP:       Register at Brown Paper Tickets website:
Register by Thursday, FEBRUARY 14th AT 4PM. Registering by the deadline assures you get a meal and a seat.
Cost:         $40 for members; $45 for non-members; $15 for students; $10 talk-only (no meal). Non-members always welcome! Note that the pay at the door option is if you cannot use a credit card when registering for the meeting. If you are paying at the door, please pay by cash or check (check payable to AEG).

Student membership in AEG is free! Please follow this link and click on the “Join AEG” tab if you are interested in becoming a member of AEG.

Our gracious sponsor, Ryka UAS, has made it possible for the AEG Puget Sound Chapter to provide meals at a reduced rate for AEG Student Members. Please go to for more information about Ryka UAS.

Presentation Abstract:          
The damage during the Oso Landslide was extensive and immediate.  There were 2 distinct slides. The first generated a splash so big that mud was thrown 4000 ft from the splash site. 43 people were instantly fatally injured.  At least two people were buried and yet survived for many hours before being rescued. The slide was likely initiated by ground freezing at the west side of the slide scarp. The author has been studying and photographing (mostly from the air) the Oso site since 2002 and will present his rational for his opinions of what happened and why it happened.

Speaker Bio:
Rupert (Bucky) Tart has over 45 years of experience as a geotechnical engineer. He received a BCE degree from the University of Virginia in 1965 and a MSCE degree from West Virginia University in 1966. Most of his career was spent in Alaska where, for more than 40 years, he has provided geotechnical consultation on slopes and numerous other issues to the constructors and operators of the Trans-Alaska Pipeline. He has also conducted major landslide repair investigations and studies for the Alaska Department of Transportation, the City of Kodiak, and several mining companies. He has published papers and a book chapter on slope issues, focusing on those related to groundwater and ground-freezing issues. He is an avid photographer and pilot and has frequently combined these skills with the analyses of slopes, landslides, and other geotechnical issues. Since 2002, he has been monitoring the Oso Landslide site.

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9/17/2019 » 9/22/2019
2019 AEG Annual Meeting

Lower Mississippi Valley Chapter of AEG Fall Quarterly Meeting

 2019 Annual Meeting 

September 17-22, 2019 Asheville, North Carolina

Learn more here