Geotechnical projects - Rock Slopes and Tunnels - Ketchikan Third Avenue Extension, Alaska
Completed Third Avenue Project in Ketchikan, Alaska
Cornforth Consultants' team of specialists offers strong experience in design of rock cuts, rockfall mitigation, and characterization of subsurface conditions for tunnels.

We have provided assessment, investigation and remediation of rock slope hazards for a variety of utility companies; and city, county, state and federal agencies. Our experience in performing subsurface investigations over challenging terrain has proven invaluable for complex assignments.

Services related to rock slopes and tunnels are found in our Services section. Representative projects are listed below with links to detailed write-ups.

Representative Projects:  
  Libby Rockfall Mitigation Sandy River Pipeline Tunnels
  Ketchikan Third Avenue Extension Montana Rockfall Hazard Rating System
  Sain Creek Water Supply Tunnel JC Boyle Canal Repair and Rockfall Mitigation
  SR 12 Rockfall Mitigation Diablo Dam Rockfall Mitigation