Cornforth Consultants :: Sebastian Dirringer

Sebastian Dirringer

Registration:
Engineering Geologist: OR, WA

Geologist: OR, WA

SPRAT Level 1 Technician

Professional Career:
2020-Present, Associate Geologist,
Cornforth Consultants, Inc.

2019-2020, Staff Geologist,
GeoEngineers, Inc.

2015-2018, Staff Geologist,
Cornforth Consultants, Inc.

Education:
2015, M.S. in Engineering Geology,
Kent State University, Kent, Ohio

2013, B.S. in Geology, State University of New York (SUNY), New Paltz, New York

Honors/Societies:
Society of Professional Rope Access Technicians (SPRAT), Level I Rope Access Technician

Member, Oregon Section of Association of Engineering and Environmental Geologists

Member, Oregon Section of American Society of Civil Engineers

Associate Geologist

Mr. Dirringer has nine years of experience specializing in engineering geology geotechnical engineering in the Pacific Northwest, Alaska and the east coast.
His areas of professional expertise include geologic reconnaissance, complex site explorations for dams and levees, geologic hazard assessments, rock slope and rockfall mitigation, landslide repair work, and construction inspection and QA/QC services. Mr. Dirringer regularly provides engineering support during construction to assure compliance with contract specifications. In addition, his vast experience with drilling and instrument installations has resulted in acceptance of his credentials by the Federal Energy Regulatory Commission (FERC) for drilling projects in hydroelectric dams. Additionally, he is an active member of the CCI rope access team with extensive experience conducting on-slope work related to reconnaissance, investigation, design and construction support for rock slope stability projects.

Mr. Dirringer has served as an engineering geologist on the following representative projects.

Washington Park Reservoir Improvements, Portland, Oregon
Multnomah County Drainage District Levee Evaluations, Portland, Oregon
Sandy Drainage Improvement Company Levee Evaluations, Portland, Oregon
Statewide Rockfall Hazard Rating System (RHRS), Montana
Seward Highway Rockfall Mitigation, Anchorage, Alaska
Hwy 20 Pioneer Mountain to Eddyville, Eddyville, Oregon
Tukwila Levee Rehabilitation and Design, Tukwila, Washington
Yale Dam Spillway Inspection, Ariel, Washington
Historic Columbia River Highway Trail, Hood River, Oregon
Wasco County Landfill Monitoring, The Dalles, Oregon
US Highway 26 Improvements, Mt. Hood, Government Camp, Oregon
Icy Point Gondola Tower Foundation Design, Hoonah, Alaska
D3 I-15 Rockfall Mitigation, Helena, Montana
CWHM Bridge Replacement, Skagway, Alaska
US Hwy 20 Pioneer Mountain to Eddyville Realignment, Eddyville, Oregon
Sterling Hwy MP 45-60 Realignment, Cooper Landing, Alaska
Santiam Pass Hwy 20 Slides, Sweet Home, Oregon