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Sean Lin, PhD, PE, GE, Chief Ceotechnicai Engineer
<br />or, Sean Lin has over 20 years of professional experience me a Gooteehnicai Engineer, He specializes
<br />In selemio site response analysis salt applies to hospitals, schools and high-rise buildings, His
<br />professional experience includes soil mechanics and foundations, soil reinforcement, geosynthetics, pile
<br />design and driving analysis, slope stability, and liquefaction analysis. Sean has experience in
<br />anglneedng projects for commerolal;.residential, waterlwastswater, military, educatipnel.and industrial
<br />facli'iliies. Sean also has experience in goote.chnical and construction projects for municipal, commercial,
<br />residential, military, educational and industrial facilities including technical and.laboratory oversight and
<br />supervision of staff and personal.
<br />Overview
<br />Joined Twining in 2014
<br />In the Industry since 1997
<br />Current Licenses Held
<br />California Registered Civil Engineer, PE 67109
<br />California Registered Geotechnical Engineer, GE 2921
<br />Education
<br />Ph.D. Civil Engineering emphasis. Earthquake Engineering,
<br />University of Southern California, Los Angeles, CA
<br />Master of Science, Civil Engineering ernphasIs Gootechnical Engineering,
<br />University of Southern California, Los Angeles, CA
<br />Baohelor of Science., Civil Engineering,
<br />Chung Yuen Christian University, Taoyuan. City, Taiwan
<br />Project Experience Summaries
<br />• City of Fontana, Street Widening Including Sidewalk Resign, Martin Avenue at Sierra
<br />Avenue This street Improvement project included street and sidewalk Improvements on Martin
<br />Avenue from Sierra Avenue to approximately 526 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 pole relocations. Sean served as the
<br />gaotechnical engineer and project manager, performing pavement condition evaluation, field
<br />exploration, geotechnioal laboratory testing, and engineering analysis, Sean provided a final
<br />structural pavement recommendation report for the project.
<br />• City of Cotton, Mt, Vernon Avenue Over UPRR Tracks Bridge Widening Sean is serving as
<br />Project Manager for the widening of this bridge from 2 lanes to 4 lanes. He is responsible for the
<br />geoteohnlcal engineering services, which Include a preliminary foundation report, geotechnioal
<br />investigation, geotechnicallaboratory testing, and gaotechnical engineering analyses. He
<br />communicates with the structural and civil engineers closely and provides geotechnioal 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 Liajas Channel Bridge Widening Sean Was the
<br />Project Manager far this project, which Consisted of widening the bridge from two to four Ianes.
<br />He was responsible for oversight of the geotechnioal investigation to explore and evaluate the
<br />subsurface conditions, and provided gaotechnical engineering recommendations for the design of
<br />the project.
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