Millicoma Meander, Elliott State Forest, Oregon - Monitoring Discontinued
U.S. Geological Survey (USGS) monitoring at this landslide has been discontinued. In previous years, the USGS and its cooperators installed instruments to monitor a steep, recently clear-cut basin in the Elliott State Forest.
Recent Conditions
The USGS no longer collects monitoring data from this site.
Project Background
Landslides in the Oregon Coast Range impact people and the environment and are commonly induced by intense or prolonged rainfall associated with strong storms in the late fall and winter season. For example, in February and November of 1996 heavy rainfall from two unusually large storms induced thousands of landslides over a large part of western Oregon.
The USGS and its cooperators have installed instruments in a steep, recently clear-cut basin in the Elliott State Forest. Data collection at this site supports research on hydrologic factors that control landslide initiation, debris-flow timing, and debris-flow magnitude. In many landslide-prone hillsides, infiltration of water from rainfall or snowmelt increases ground-water pressures. These elevated pressures can, in turn, induce landslide movement which can lead to debris-flows.
U.S. Geological Survey (USGS) monitoring at this landslide has been discontinued. In previous years, the USGS and its cooperators installed instruments to monitor a steep, recently clear-cut basin in the Elliott State Forest.
Recent Conditions
The USGS no longer collects monitoring data from this site.
Project Background
Landslides in the Oregon Coast Range impact people and the environment and are commonly induced by intense or prolonged rainfall associated with strong storms in the late fall and winter season. For example, in February and November of 1996 heavy rainfall from two unusually large storms induced thousands of landslides over a large part of western Oregon.
The USGS and its cooperators have installed instruments in a steep, recently clear-cut basin in the Elliott State Forest. Data collection at this site supports research on hydrologic factors that control landslide initiation, debris-flow timing, and debris-flow magnitude. In many landslide-prone hillsides, infiltration of water from rainfall or snowmelt increases ground-water pressures. These elevated pressures can, in turn, induce landslide movement which can lead to debris-flows.