Brian D LaCas, FEC, P.Eng. Expert Witness

Contact Information

  • Company: LCI Engineering Group, LaCas Consultants Inc.
  • Phone: (604) 688-2535
  • Cell: (604) 816-8015
  • Fax: (604) 588-5101
  • Website:
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Specialties & Experience

General Specialties: Hydrology and Engineering

Specialty Focus: forensic hydrology, forensic flood analysis, water, drainage, MVA flooding, rainfall analysis, dam failure, floodplain, flooding, mine tailings, dam failure, bridge washout, coastal flooding

Education: BA.Sc. Civil Engineering, University of Waterloo

Years in Practice: 35+

Number of Times Deposed/Testified in Last 4 Yrs: 3

Additional Information

Brian David LaCas, FEC, P.Eng., Senior Hydrotechnical Engineer, founder and President of LaCas Consultants Inc. (LCI) since 1991, a hydrology and hydrotechnical consulting engineering company located in Vancouver, British Columbia, Canada. In 2019, Mr. LaCas received the Certificate of Fellowship (FEC) from Engineers Canada in honour of exceptional contributions to the engineering profession in Canada. Mr. LaCas has over 35 years of hydrotechnical engineering experience specializing in the modeling of surface water resource systems, forensic hydrology and hydraulics, and alternative flood control mitigation. He has been qualified as an expert witness in the Supreme Court of Canada and has experience testifying as an expert witness. Mr. LaCas’ experience includes over 500 projects: flood protection works, land and road drainage, creek restoration, river gravel deposition assessment and removal programs, forestry road bridge and culvert hydraulics design and construction review, urban bridge and culvert hydraulics design/construction review, dike design, weirs, multiple pipeline creek crossings, shoreline protection works, flood construction level determination, aerial photography interpretation, dam spillway design, side cast weir design, channel assessment of logged watersheds, large scale flow measurement weir design, dike inspection/manual, selection of creek flow monitoring station locations, channel stabilization works, mine water management plans, review of intake works, hydrological and hydraulic numerical computer modelling of clear-water and debris floods, coastal FCL's, channel relocation, channel geomorphology, and creek erosion control works. 2002-2020: Technical Reviewer, Engineers & Geoscientists BC 2017-2018: Committee Member, Environment and Social Responsibility Society, Canadian Institute of Mining 2014-2018: BC & National Director Canadian Water Resources Association 1992-1993: BC President: Canadian Society of Hydrological Science