Corridor-Scale Landslide Hazard Mapping: Conversion of CGS Hazard Maps

California Department of Transportation (Caltrans) expends approximately $22 million annually managing an average of 200 landslides and 10 road closures that require clean up and/or mitigation. Impacts of landslides include road closures, traffic delays, economic losses, and environmental degradation. The existence and extent of landslide hazards are generally not recognized by those involved with corridor planning and operations, and available knowledge is often focused on active slides which tend to be minor elements within a broader context of geologic instability. This project (P204) aims to compile and interpret geologic and remote sensing data to produce corridor-scale map products (GIS files and reports) that conveniently communicate the broad context of landslide-hazards needed to proactively manage landslide risk before slide costs are incurred. This task will extend the statewide slide map inventory by approximately 280 corridor miles.

  • Supplemental Notes:
    • Contract to a Performing Organization has not yet been awarded.


  • English


  • Status: Active
  • Sponsor Organizations:

    California Department of Transportation

    1227 O Street
    Sacramento, CA  United States  95843
  • Project Managers:

    Roblee, Cliff

  • Start Date: 20110701
  • Expected Completion Date: 20170630
  • Actual Completion Date: 0
  • Source Data: RiP Project 28775

Subject/Index Terms

Filing Info

  • Accession Number: 01465955
  • Record Type: Research project
  • Source Agency: California Department of Transportation
  • Files: RIP, STATEDOT
  • Created Date: Jan 3 2013 3:08PM