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"TWINING
<br />Seam Lin, PhD; PE, GE, Chief Geotechnical Engineer
<br />Dr. Sean Lin has over N years of professional e
<br />In-selemlo site reaponse analysis as jt applies to
<br />profoss4onal experience Includes soil moohanies
<br />design and sieving arialysla, slope stability, and.l
<br />engineering projsoI for eommergialiresidential,
<br />facilities.
<br />Sean also has experiencee n,glaotechni
<br />residential, mllitayy, educational and industrial fie
<br />supervision of stal and personnel.
<br />Overview
<br />Joined Twining 1n 2014
<br />in the industry since 1997
<br />Current Lioenses Held
<br />California Registered Civil Engineer, PE 67109
<br />CalifOnla Registered Geotecirnical 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 emphasis Gootochnical Engineering,
<br />University of -Southern California, Los Angeles, CA
<br />Bachelor of Science, Civil Engineering,
<br />Chung Yuan. Chrlstian University, Taoyuan City, Taiwan
<br />Project Experience Summaries
<br />;al Engineer. He speolalizos
<br />h-rlsa buildings, His
<br />orcement, goosynthetics, pile
<br />has experience in
<br />, educational and industrlel
<br />Its for municipal, commercial,
<br />ind, laboratory oversight and
<br />• City of Fontana, Stroet 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 pole relocations. Sean served as the
<br />geotechnicel 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, 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 />gootechriloai engineering services, which include a preliminary foundation report, geotechnical
<br />Investigation, geotechnical laboratory testing, and geotechnical engineering analyses. He
<br />communicates 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 Llajas Channel Bridge, Widening Sean was the
<br />Project Manager for this project, which consisted of widening the bridge from two to four lanes.
<br />He 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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