Geotechnical Society of Edmonton

NEWS 2006

Posted March 9, 2006

Event March 16, 2006

CSCE-GSE Joint Dinner Meeting - Update on the Little Smoky Landslide

Download the announcement in pdf

Presented by: Mr. Roger Skirrow, Director, Geotechnical and Materials Section, Technical Standard Branch of Alberta Infrastructure and Transportation.

Abstract: This presentation provides an update Little Smokey Landslide, which is on the west valley slope of the Little Smoky River about 48 km north of Valleyview, Alberta on Highway 49. The presentation will provide details on landslide conditions; drilling, instrumentation and investigation results; an InSAR satellite based ground movement monitoring study; mitigative measures used to date and mitigation options under consideration. The InSAR study, which identified patterns of movement over a wide area of both valley slopes and was used to evaluate realignment options. Movements of the east valley slope and consequences of these movements are discussed in addition to the west valley slope movements. The slide continues to affect the west abutment of a major bridge structure and the highway approach on both sides of the valley leading to the bridge. Monitoring results indicate a slip plane at 40 to 50 m depth. Due to the limited feasibility and significant economic costs of active slide stabilization methods, a passive mitigation strategy was undertaken in order to accommodate the valley slope movements.

Speaker Biography: Mr. Skirrow oversees the department's geohazard risk management program, which monitors and prioritizes mitigation work for approximately 150 landslides, erosion and other geohazard problem sites. The Hwy 49 crossing of the Little Smoky River valley is one such geohazard site. Mr. Skirrow received a B.Sc. in Civil Engineering in 1982 and a M.Sc. in Geotechnical Engineering in 1996, both from the U of A. He has split his professional career between the public sector, and private consulting, and has been at his present position with AIT since 1999. His other interests include mountaineering, including a climb on Mt. Aconcagua in Argentina this February, and Mt Kilimanjaro in Tanzania last year.

Location: University of Alberta Faculty Club
Time:
Cocktails & Registration - 5:30
Dinner - 6:30
Presentation - 7:30
Closing Remarks - 8:30
Date: Thursday March 16, 2006
Cost:
Student Members - $10.00
Student Non-members- $15.00
CSCE & GSE Members - $20.00
Non-members - $30.00

Please assist us in forecasting attendance by via our voice mail at 405-4757 or e-mail at info@csceedmonton.org at least two days prior to the meeting.

CSCE PREMIUM SPONSORS
CITY OF EDMONTON- DRAINAGE SERVICES, INFRASTRUCTURE SYSTEMS LIMITED, STANTEC CONSULTING, TIC Canada.

CSCE PRINCIPAL SPONSORS
Associated Engineering, Canadian Institute of Steel Construction, COHOS EVAMY, Golder Associates, Thurber Engineering Ltd. Earth Tech, NSERC/U of A Construction Research Chair, Qualimet, U of A Department of Civil and Environmental Engineering, UMA Engineering Ltd.

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