Preliminary Results of Subsurface Exploration and Monitoring at the Johnson Creek Landslide, Lincoln County, Oregon
Open-File Report
2007-1127
By: William H. Schulz and William L. Ellis
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Abstract
The Johnson Creek landslide is a translational, primarily bedrock landslide located along the Oregon coast about 5 km north of Newport. The landslide has damaged U.S. Highway 101 many times since construction of the highway and at least two geological and geotechnical investigations of the landslide have been performed by Oregon State agencies. In cooperation with the Oregon Department of Geology and Mineral Industries and the Oregon Department of Transportation, the U.S. Geological Survey upgraded landslide monitoring systems and installed additional monitoring devices at the landslide beginning in 2004. Monitoring devices at the landslide measured landslide displacement, rainfall, air temperature, shallow soil-water content, and ground-water temperature and pressure. The devices were connected to automatic dataloggers and read at one-hour and, more recently, 15-minute intervals. Monitoring results were periodically downloaded from the dataloggers using cellular telemetry. The purposes of this report are to describe and present preliminary monitoring data from November 19, 2004, to March 31, 2007.
Suggested Citation
Schulz, W.H., Ellis, W., 2007, Preliminary Results of Subsurface Exploration and Monitoring at the Johnson Creek Landslide, Lincoln County, Oregon (Version 1.0): U.S. Geological Survey Open-File Report 2007-1127, Report (iv, 11 p.); Appendix, https://doi.org/10.3133/ofr20071127.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Preliminary Results of Subsurface Exploration and Monitoring at the Johnson Creek Landslide, Lincoln County, Oregon |
| Series title | Open-File Report |
| Series number | 2007-1127 |
| DOI | 10.3133/ofr20071127 |
| Edition | Version 1.0 |
| Year Published | 2007 |
| Language | ENGLISH |
| Publisher | Geological Survey (U.S.) |
| Contributing office(s) | U.S. Geological Survey |
| Description | Report (iv, 11 p.); Appendix |
| Time Range Start | 2004-11-19 |
| Time Range End | 2007-03-31 |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |