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<br />VOOTWiNiNG
<br />Sean Lin, PhD PE, GE, Chief Geotechnical Engineer
<br />Dr. Senn Lin has over 20 years of profeselonal experlenoe as a Geot'ethnfcal
<br />In selpnilo site response analysis os it applies to hospitals, schools and high -o
<br />professional experience includes soil mochanics and foundatfons, soil rslnfon
<br />design and driving arya"$I$, slope stability, and liquefaction analysis. Sean h€
<br />enginogriog projacis for commercial, residential, waterfvfas#ewater, military; e
<br />facilities, Scan assn fres a arleh0 In gaotpohnical aril oonstYucfIon projects
<br />restdentlal, militortyy educa Ions) and industrial facilities Including technical and
<br />supervision of staff and personnel.
<br />Overview
<br />Joined Twirling In 2014
<br />In the Industry since 1997
<br />Current Licenses Meld
<br />California Registered Civil Engineer, PE 67109
<br />California Registered Geotechnicof Engineer, GE 2921
<br />Education
<br />Ph.D. Civil Engineering emphasis Earthquake Engineering,
<br />University ofSouthemCallfornia, LosAngoles, CA
<br />Master of Science, Civil Engineering emphasis Gootechnical Engineering,
<br />University of Southern California, Los Angelos, CA
<br />Bachelor of Science, Civil Engineering,
<br />Chung Yuan Christian University, Taoyuan. City, Taiwan
<br />Project Experience Summaries
<br />Engineer, He speciallizes
<br />so buildings. His
<br />ement, geosynthetics, pile
<br />A commercial,
<br />oversight and
<br />• City of Fontana, Street Widening Including Sidewalk Design, Martin Avenue at Sierra
<br />Avenue This street improvement project included street and sidewalk Improvements on Martin
<br />Avenue from Sierra Avenue to approximately 525 feet east of Sierra Avenue, The roadway and
<br />street improvements consisted of curb, gutter, sidewalk, handicapped access ramps, commercial
<br />and residential driveways, AC pavement, and utility polo relocations, Sean served as the
<br />geoteohnical engineer and project manager, performing pavement condition evaluation, field
<br />exploration, geotechnical laboratory testing, and engineering analysis. Sean provided a final
<br />structural pavement recommendation report for the project.
<br />• City of Colton, ML Vernon Avenue Over UPRR Tracks Bridge Widening Seen is serving as
<br />Project Manager for the widening of this bridge from 2 lanes to 4 lanes. He is responsible for the
<br />geolochnloal engineering services, which include a preliminary foundation report, geotechnical
<br />Investigation, geotechnical laboratory testing, and geotechnical engineering analyses. He
<br />communioates with the structural and civil engineers closely and provides geotechnical design
<br />recommendations during the design phase. Sean also coordinates stakeholders" right of way
<br />information for the City of Colton and the UPRR.
<br />City of Simi Valley, Cochran Street and Las Lejas Channel Bridge Widening Sean was the
<br />Project Manager for this project, which consisted of widening the bridge from two to four lanes.
<br />Ile was responsible for oversight of the geotechnical investigation to explore and evaluate the
<br />subsurface conditions, and provided geotechnical engineering recommendations for the design of
<br />the project.
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