George Machan

Registration
Civil Engineer - OR, WA, MT, WY, UT,
ID, AK, NY, AZ
​
​Geotechnical Engineer - OR

Career
1996 - present
Senior Associate Engineer
Landslide Technology, Portland, OR

1995 - 1996
Region 1 Planning and Development Manager
Oregon Department of Transportation (ODOT)
Portland, OR

1991 - 1995
Westside Corridor/LRT Project Manager
ODOT, Portland, OR

1984 - 1991
Geotechnical Engineering Manager
ODOT, Salem, OR

1975 - 1984
Senior Engineer
Squier Associates, Lake Oswego, OR

Education
1974/M.S. in Geotechnical Engineering 
Purdue University, West Lafayette, IN

1973 B.S.
Civil Engineering
University of Connecticut, Mansfield, CT

Honors/Societies
TRB Committees on Transportation Earthwork  & Soil and Rock Instrumentation (AFS 10 and AFS 20), Transportation Research Board

National Cooperative Highway Research Program (National Academy of Sciences)

Chair, ASCE Geotechnical Engineering Group, Portland

Senior Associate Engineer

Mr. Machan has over 43 years of experience in geotechnical engineering and project development management.  Designs have included slide repairs, drainage systems, cut slopes, embankments in mountainous terrain and over compressible floodplains, retaining walls, ground anchor stabilization, foundations, light-weight fills, rock slopes and rockfall protection methods.

He also provided overall project development management for highway improvements along Sunset Highway and Highway 217 in Portland, associated with the fast-tracked Westside Light Rail project. He provided leadership in public involvement and mediation efforts to community impacts and design issues. In addition, he represented ODOT in several legal proceedings and Land Use hearings.

Several projects representative of Mr. Machan’s experience include:

• Gas Plant Slides, Equatorial Guinea, Africa
• Caribou Creek Section, Glenn Highway MP 100 – 109, Alaska
• Rockfall Avalanche, Banks - Lowman Highway MP 26, Idaho
• Emergency Road Repairs for Forest Roads (ERFO), Washington and Oregon
• Parks Highway MP 352 Slide, Ester, Alaska
• Richardson Highway MP 296 Anchored Retaining Walls, Richardson, Alaska
• Sandlake Road Slide, Tillamook County, Oregon
• Interstate 84 Rock Slide, Echo, Utah
• Cornelius Pass Road Landslide, Multnomah County, Oregon
• Hoover Landslide, Provo Canyon, SR-189, Utah
• Snowbasin Access Road (UDOT), Weber County, Utah
• Snake River Avenue Slide, Lewiston, Idaho
• Bonners Ferry Slide, U.S. 95, Idaho
• Siskiyou Pass Escape Ramp Wall Failure, Interstate 5, Near Ashland, Oregon
• Hole-in-the-Wall Landslide, Highway 86, Halfway, Oregon
• Portland Zoo Slide, Sunset Highway 26, Oregon
• Osweg Creek Slide, Highway 26, Near Elsie, Oregon
• Looking Glass Hill (MT 49) Slides, East Glacier, Montana
• Cornell Road Subgrade Claim, Hillsboro, Oregon
• Southwest 45th Avenue Embankment Failure, Portland, Oregon
• Route 219, Scoby Hill Rd Slide, Springville, New York
• Uplift Failure of a Buried Fuel Tank, Albany, Oregon
• Highway U.S. 26, South of Warm Springs, Oregon
• SR 87 Landslide near MP 224, Payton, Arizona
• John Day River Embankment Slide, Highway 30, Near Astoria, Oregon
• Galena Summit Slide, SH-75, Idaho
• Crater Lake Rim Drive Stability, Crater Lake National Park, Oregon
• Rosie's Ridge and Togwotee Pass Slides, Wyoming

Selection of technical presentations and lectures:

• Landslide Application of the Geotechnical Observational Approach, 3rd North American Symposium on Landslides, Roanoke, Virginia
• Complexities of Determining Properties of Diatomaceous Deposits, Transportation Research Board Annual Meeting, Washington DC
• Geotechnical Planning for US26 Corridor (Swan Valley – Wyoming state line), Presentation to New York  DOT
• Invited Lecturer, Observational Method Approach To Monitor Construction Of Highway Embankments On Active Landslides, Geotechnical & Structural Instrumentation, Monitoring, and Information Engineering Short Course, Golden, Colorado

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Mike Meyer - Gerry Heslin - George Machan - Charlie Hammond - Brent Black - Darren Beckstrand - Chris Carpenter
Ben George - Wade Osborne -  Tom Westover - Zach Ruby
Andy Vessely - Larry Pierson - Derek Cornforth