Pacific Northwest Storm, Location 3

Landslides triggered by Pacific Northwest Storms
November and December 1998

Landslide on Cromwell Drive SW, Gig Harbor Peninsula, Washington (Location 3)

Photo 2A View of slide above roadway, looking east; slide debris is the light brown material above the road cut. Small rapid earth flows form at the base of the slide and flow down the cut slope (dark brown).

Photo 2BBasal contact of landslide debris (light brown) and underlying deposits (dark brown). A 20-30 cm thick layer of silty clay intercepts water percolating through the landslide and diverts it to the slope face.