Woodway, Washington
Data collection at the Woodway landslide ceased on October 19, 2006
During January 1997, a large landslide from a bluff overlooking Puget Sound derailed five cars of a freight train near Woodway, Snohomish County, Washington. Many other landslides occurred throughout the Puget Sound area following rainy periods during January and March 1997.
Map showing site location in Washington State
The U.S. Geological Survey has installed instruments in the bluff where the landslide occurred to detect changes in local conditions, including:
In many landslides and unstable bluffs, infiltration of rainfall or snowmelt increases ground water pressures. These elevated pressures can, in turn, trigger landslide movement. Data are collected every 15 minutes and displayed on graphs that are updated hourly (a few minutes after the hour). Summary graphs are updated daily, shortly after midnight (PST). Updates are occasionally interrupted by computer or network malfunctions.
Contact Information
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Ed Harp
harp [at] usgs [dot] govU.S. Geological Survey
Geologic Hazards Team
Box 25036, M.S. 966
Denver, CO 80225 Rex Baum
baum [at] usgs [dot] govU.S. Geological Survey
Geologic Hazards Team
Box 25036, M.S. 966
Denver, CO 80225
