Bull Run Flume Landslide


We are a Portland, Oregon-based geotechnical firm established in 1983, specializing in complex landslide and rockfall evaluations and remediations. Our expertise has allowed us to provide these services both nationally and internationally for a wide range of transportation, power generation, natural resource and other lifeline infrastructure clients. Landslide Technology is a division of Cornforth Consultants, Inc.

Our specialties include:

  • Roadway failures
  • Hazard and risk rating systems and asset management
  • Soil and rock stability at dams
  • Reservoir landslides
  • Geotechnical asset management
  • Hydropower canal failures
  • Rock slopes
  • Pipeline hillside instability
  • Embankments
  • Railroad slides
  • Rockfall hazards
  • Submarine slides
  • Emergency response
  • Expert witness


"[Landslide Technology] led the project on a path to successful completion from the start. [Your staff] has the uncanny ability to instantly build a professional bond with all on the project."

-John Benda, P.E., Engineering Project Manager, Montana Department of Transportation


"...their knowledge and expertise has been indispensable in helping us deal with the technical issues involved. Beyond that their concern for the environmental challenges and sensitivity to interdepartmental and public relations is appreciated."

-Eugene Wardzinski, P.E., Engineer-in-Charge, New York State Department of Transportation


"Not only have the deliverables/products been of excellent quality, but working with your staff has been a delightful experience for all of us here. Your folks are simply first rate technically, professionally and personally."

-Dave Stanley, C.P.G., Chief Engineering Geologist, Alaska Dept. of Transportation and Public Facilities