Time-lapse view of California Highway 1 reconstruction after 2017 landslide
USGS scientists produced an animated GIF in coordination with the California Department of Transportation (Caltrans) re-opening of State Highway 1 through Big Sur on July 18, 2018.
In 2017, the massive Mud Creek landslide buried a quarter-mile of the famous coastal route with rocks and dirt more than 65 feet deep. As part of a new research project to monitor erosion along the landslide-prone cliffs of Big Sur, USGS scientists collected aerial photos before and after the slide, and during the construction project. By analyzing overlapping photos, they made precise maps of the slopes and calculated volumes of material lost or gained over time. Our researchers shared data and images with Caltrans to help ensure the safety of workers and the success of the road reconstruction.
Read more about the USGS research project: Remote Sensing Coastal Change.
We use remote-sensing technologies—such as aerial photography, satellite imagery, and lidar (laser-based surveying)—to measure coastal change along U.S. shorelines.
USGS geologists Jon Warrick (Pacific Coastal and Marine Science Center) and Kevin Schmidt (Geology, Minerals, Energy, and Geophysics Science Center) are quoted in a November 9 Los Angeles Times story titled “Highway 1 was buried under a massive landslide. Months later, engineers battle Mother Nature to fix it...
On October 12, USGS drones collected video footage of the Mud Creek landslide, which buried California State Highway 1 under a third-of-a-mile-wide mass of rock and dirt on May 20.
Scientists from the USGS Pacific Coastal and Marine Science Center mapped the offshore extent of the Mud Creek landslide on California’s Big Sur coast on July 11, 2017.
The Mud Creek landslide on California’s Big Sur coast keeps eroding.
USGS analysis of air photos collected June 13 shows that new land created by a May 20 landslide on California’s Big Sur coast is eroding.
USGS scientists analyzing before-and-after air photos have calculated the size of the May 20 landslide on California’s Big Sur coast, about 140 miles south of San Francisco.
USGS is collecting and analyzing air photos to help monitor a huge landslide that occurred May 20 on California’s Big Sur coast.
U.S. Geological Survey scientists and their coauthors from the California Coastal Records Project have found a way to use historical aerial photographs not just to see evidence of coastal erosion, but to accurately measure how much has occurred over time.
New USGS Fact Sheet About Landslides Delivering Slope Material to Nearshore Waters on California's Big Sur Coast
Landslides are common along the rugged Big Sur coast in central California