Colleen Crystal

Colleen Crystal

P.E., G.E.

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Ms. Colleen Crystal is a licensed professional geotechnical engineer with over 17 years of experience in managing and completing a wide range of geotechnical investigation, design and construction projects in both the private and public sectors. She is currently Senior Engineer for SLR International Corporation, United States.

Her project experience has included commercial high-rise developments, landfills, transportation, infrastructure, port facilities, public schools, and essential service buildings, above grade petroleum storage tanks, dams and reservoirs, as well as large earthworks projects and mine tailings impoundments, for which she has led site characterization, permitting, geotechnical and earthquake engineering and design and construction support services. She has significant experience in static/seismic slope stability analyses for native and compacted fill slopes, geosynthetic reinforced slopes, and landfill slopes; and dewatering modeling and analyses. Her grading experience includes landfill cover and liner designs, and surface water control structures design.

Ms. Crystal has managed and executed a variety of geotechnical and geologic field explorations geotechnical laboratory characterization and testing programs for mine tailings waste management facilities. She has further provided analyses and reporting for tailings facility and mine infrastructure and civil related earthworks projects.