Item: Re-Evaluation of Avalanche Mitigation Measures for Juneau
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Title: Re-Evaluation of Avalanche Mitigation Measures for Juneau
Proceedings: Proceedings, 2012 International Snow Science Workshop, Anchorage, Alaska
Authors:
- Stefan Margreth [ WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland ]
- Tom Mattice [ Emergency Programs Manager / Avalanche Forecaster, City and Borough of Juneau, Alaska, United States ]
Date: 2012
Abstract: Juneau, Alaska’s state capital, has a serious avalanche problem. The last major avalanche event in 1962 was the catalyst to propose for the first time avalanche mitigation measures. In 1972 a comprehensive geophysical hazard study was performed where avalanche hazard zones were suggested. The zones were re-evaluated in 1992. In 2011 the SLF was mandated to investigate mitigation measures to decrease the avalanche risk in the two most dangerous avalanche paths. Beside structural mitigation measures such as snow supporting structures or earth dams, the application of fixed installed remote-controlled exploders was investigated as well. The buyout of homes seems to be one way to effectively reduce the avalanche risk on the long-term. At present the only avalanche safety measures consist of an avalanche response plan, information and training for residents / responders and an avalanche forecasting program. In this paper we focus on the most dangerous Behrends Avenue avalanche path.
Language of Article: English
Presenters: unknown
Keywords: avalanche mitigation, avalanche dynamics modeling, hazard map
Page Number(s): 150-156
Subjects: avalanche prevention alpine avalanche dynamics
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Digital Abstract Not Available
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