Cornforth Consultants
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    • Earth & Rockfill Dams
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    • Earth and Rockfill Dams >
      • Barney Reservoir
      • Frog Lake Reservoir
      • Iron Gate Dam Raise
      • McGuire Dam Raise
      • Bonneville Cofferdam
      • Bull Run No. 2 Seismic Stability Analysis
    • Levees and Canals >
      • Libby Dike Rehab.
      • St. Johns Dike Stabilization
      • Cowlitz River Levees
      • Swift Canal Failure
    • Earthquake Engineering >
      • Barney Dam Seismic Analysis
      • Fern Hill WTP Liquefacation Study
      • Bull Run No. 2 Seismic Stability Analysis
      • Mt. Tabor Seismic Stability Analysis
      • Port Westward Power Plant Seismic Design
    • Rock Slopes and Tunnels >
      • Libby Rockfall Mitigation
      • Sandy River Pipeline Tunnels
      • Ketchikan Third Avenue Extension
      • Sain Creek Water Supply Tunnel
      • Montana Rockfall Hazard Rating System
    • Foundations >
      • Port Westward Power Plant
      • Cascade Locks Casino
      • Air National Guard Hangar
      • Biglow Canyon Windfarm
      • Oakridge Water System Improvements
    • Concrete Dams and Locks >
      • John Day Lock & Dam
      • Marmot Dam Removal
      • The Dalles Dam
      • Willamette Falls Dam
      • Bonneville Dam
    • Transportation >
      • OTIA Cracked Bridge Geotechnical Baselines
      • Newburg Dundee Bypass Design DEIS
      • I-84 Sandy River Bridge Investigation
      • Tanana River Bridge Foundation, Tok, Alaska
      • Montana RHRS Implementation
      • Ketchikan Third Avenue Extension
    • Ports and Airports >
      • Navy CVN Drydock
      • Depoe Bay Seawall Distress
      • Willamette Falls Flow Control Structure
      • Air National Guard Hangar
    • Water and Wastewater >
      • Fern Hill Water Treatment Plant
      • Tualatin Valley North Transmission Line
      • Evaluation of 28 Water Storage Facilities
      • City of Sandy Water Treatment Plant
      • Mt. Tabor Reservoir No. 5 Cap Study
      • Oakridge Water System Improvements
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    • Geotechnical Engineer
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D. Andy Vessely

Andy Vessely, P.E., P.G., C.E.G.
Registration
Civil Engineer - OR, WA, MT
Geotechnical Engineer - OR
Engineering Geologist - OR

Career
1988 - present
Staff Consultant
Cornforth Consultants, Portland, OR

1985 - 1987
Staff Geologist
Northwest Geotechnical, Portland, OR

Education
1988/M.S. in Geotechnical Engineering
University of California, Berkeley, CA

1984/B.S. with Honors in Geology
University of Oregon, Eugene, OR

Honors/Societies
Past Chair, Portland Geotechnical Engineering Group, American Society of Civil Engineers

Earthquake Engineering Research Institute

President, American Council of Engineering Companies (ACEC) of Oregon

UC Berkeley Geotechnical Society

Structural Engineering Association of Oregon
Staff Consultant
Mr. Vessely has over 32 years of experience as a Geotechnical Engineer and Engineering Geologist in the Pacific Northwest. He received his Masters degree from U.C. Berkeley. Mr. Vessely’s areas of interest include landslides affecting earth dams and embankments, seismic effects on landslides, geotechnical engineering for water supply and transportation projects, and expert witness services. His geologic and engineering training and experience provide him the background necessary to develop cost-effective landslide mitigation solutions.

Representative projects include the following:  

  • Washington Park Station, Westside Light Rail, Portland, Oregon
  • Crater Lake Lodge, Caldera Stability Study, Crater Lake National Park, Oregon
  • Goat Lick Landslide, U.S. Highway 2, Essex, Montana
  • Phase I Feasibility Study, Westside Light Rail, Portland, Oregon
  • Pelton Park Landslide, Madras, Oregon
  • McKenzie River Slide, Highway 126, Leaburg, Oregon
  • Depoe Bay Landslide, Depoe Bay, Oregon
  • Oceanfront Highway Slide, Near Tillamook, Oregon
  • Highway 101 Johnson Creek Slide
  • North Wasco County Landfill Slide, The Dalles, Oregon
  • West Commercial and 1st Street Slide, Astoria, Oregon
  • Snowbasin Access Road Landslide, Utah
  • Water Conduits No. 2, No. 3 and No. 4 Geologic Hazard Assessment, Bull Run Watershed, Oregon

Mr. Vessely is the author of 13 technical papers covering geotechnical aspects of earthquake engineering and landslide evaluation.


​Mike Meyer - Gerry Heslin - George Machan - ​Charlie Hammond - Brent Black - Darren Beckstrand - Chris Carpenter - Ben George
​
Wade Osborne -  Tom Westover - Greg Landau - Aine Mines - Logan Allender - Andy Kost - Adam Koslofsky - Sebastian Dirringer
Rachel Hunt -Justin McCarley - Aleyna Link - Michael Bunn - Andy Vessely - Larry Pierson - John Sager
  • Home
  • Services
    • Earth & Rockfill Dams
    • Reservoirs, Canals, and Levees
    • Spillway Safety Inspections
    • Landslides and Rockfall
    • Earthquake Engineering
    • Geologic Hazards
    • Geotechnical Site Characterization
    • Hydrogeology
    • Expert Witness
    • Concrete Dams and Locks
    • Geotechnical Instrumentation
    • Deep and Shallow Foundations
    • Geotechnical Manuals
  • Industries
    • Water Resources
    • Energy
    • Natural Resources
    • Industrial
    • Transportation
    • Ports and Airports
    • Expert Witness
  • Projects
    • Earth and Rockfill Dams >
      • Barney Reservoir
      • Frog Lake Reservoir
      • Iron Gate Dam Raise
      • McGuire Dam Raise
      • Bonneville Cofferdam
      • Bull Run No. 2 Seismic Stability Analysis
    • Levees and Canals >
      • Libby Dike Rehab.
      • St. Johns Dike Stabilization
      • Cowlitz River Levees
      • Swift Canal Failure
    • Earthquake Engineering >
      • Barney Dam Seismic Analysis
      • Fern Hill WTP Liquefacation Study
      • Bull Run No. 2 Seismic Stability Analysis
      • Mt. Tabor Seismic Stability Analysis
      • Port Westward Power Plant Seismic Design
    • Rock Slopes and Tunnels >
      • Libby Rockfall Mitigation
      • Sandy River Pipeline Tunnels
      • Ketchikan Third Avenue Extension
      • Sain Creek Water Supply Tunnel
      • Montana Rockfall Hazard Rating System
    • Foundations >
      • Port Westward Power Plant
      • Cascade Locks Casino
      • Air National Guard Hangar
      • Biglow Canyon Windfarm
      • Oakridge Water System Improvements
    • Concrete Dams and Locks >
      • John Day Lock & Dam
      • Marmot Dam Removal
      • The Dalles Dam
      • Willamette Falls Dam
      • Bonneville Dam
    • Transportation >
      • OTIA Cracked Bridge Geotechnical Baselines
      • Newburg Dundee Bypass Design DEIS
      • I-84 Sandy River Bridge Investigation
      • Tanana River Bridge Foundation, Tok, Alaska
      • Montana RHRS Implementation
      • Ketchikan Third Avenue Extension
    • Ports and Airports >
      • Navy CVN Drydock
      • Depoe Bay Seawall Distress
      • Willamette Falls Flow Control Structure
      • Air National Guard Hangar
    • Water and Wastewater >
      • Fern Hill Water Treatment Plant
      • Tualatin Valley North Transmission Line
      • Evaluation of 28 Water Storage Facilities
      • City of Sandy Water Treatment Plant
      • Mt. Tabor Reservoir No. 5 Cap Study
      • Oakridge Water System Improvements
  • Staff
  • Resources
  • Careers
    • Geotechnical Engineer
  • Contact Us