Meet Gei's

Gillian M. Williams, P.E.

Geotechnical Engineer

Gillian Williams is a project manager and geotechnical engineer with 13 years of experience in dam safety and foundations.  Her experience includes dam inspections, seepage and stability analyses, internal filter design for dams, settlement analyses, retaining wall design, subsurface investigations, construction observation, and preparation of geotechnical reports. Gillian has participated in various FERC Part 12D Safety Inspections with a FERC approved Independent Consultant.  She joined GEI in 2008 in the Denver, Colorado office and now works in GEI’s Portland, Maine office. She has a B.S. in Civil Engineering from Union College and M.S. in Civil Engineering from Colorado School of Mines.

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Portland, Maine


  • Licensed Professional Engineer: CO, ME
  • WTS Member
  • OSHA 10 Hr Construction Safety