United States Department of Transportation
i
Landslide hazard rating matrix and database : executive summary report.
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2008-01-01
[PDF-117.31 KB]
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Edition:Executive summary report.
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Abstract:Landslides or embankment slope failures on
highways occur for a variety of reasons, such as
excessive precipitation, flooding, deterioration of
soil strength over time, and adverse man-made
activities. The slope failures not only affect
roadways but also impact adjacent structures.
Repairing slope failures may require lane closures
or even detours that result in additional travel time
and fuel cost as well as the diminished commercial
activities in the affected area. The Office of
Geotechnical Engineering (OGE) recognizes the
need to develop a strategy to provide timely
preventive maintenance to avoid on-set of large or
catastrophic slope failures. Furthermore, with
limited financial resources, the OGE is forced to
make rational decisions on the priority of various
landslide (slope failure) maintenance and
remediation needs. The decision-making and
prioritizing of maintenance/remediation plans can
be executed objectively only when a framework of
the landslide hazard rating system is developed, and
a well developed and populated inventory of
existing landslide sites is in existence.
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