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George Machan
Senior Associate Engineer
Mr. Machan has over 36 years of experience in geotechnical engineering and project development management. Projects have been in the Pacific Northwest. 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.
A few 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
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