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Expert Witness

Hydrology, Water, & Engineering
Brian David LaCas, FEC, P.Eng.
Senior Hydrotechnical Engineer/Hydrologist

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HYDROLOGY EXPERT WITNESS | FLOODS EXPERT WITNESS | DRAINAGE EXPERT WITNESS | FORENSIC FLOOD DAMAGE ASSESSMENT |
MVA EXPERT WITNESS 

SPECIALIZATION

Mr. Brian David LaCas, FEC, P. Eng. is a court recognized Expert Witness Hydrologist and Hydrotechnical Engineer (Water Resources Engineering Consultant) providing expert opinions, review, rebuttal reports, court expertise specializing in the analysis of floods, flooding and floodplains, stormwater and drainage, dams and reservoirs, rivers, streams and Motor Vehicle Accident (MVA) road flooding. He is an expert in, and is qualified to testify on, the meteorology and hydrology of flood events for the range of types of watershed and river systems, as well as the hydraulics of bridges, culverts, agricultural land drainage, pump stations, mine tailings pond failures, flood frequency analysis, watershed numerical modeling, water surface profile modeling, flood construction levels, floodplain mapping, ocean wave modeling, ocean flood construction levels, river pipeline crossings, drowning and forensic engineering flood damage assessment

SUMMARY

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. www.theLCIgroup.com

Mr. LaCas has over 38 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. For over 17 years, he has been a technical reviewer for the Engineers & Geoscientists, of British Columbia carrying out confidential reviews of Professional Engineers for standard practice review and for technical support for potential disciplinary action by the association. Mr. LaCas, a former Toastmaster enjoys public speaking and explaining technical terminology in lay terms to assist the court. 

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’ 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, instream 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 modeling of clear-water and debris floods, channel relocation, channel geomorphology, and creek erosion control works.

LICENCES

Registered Professional Engineer of both: Engineers & Geoscientists of British Columbia, Canada and Professional Engineers & Geoscientists of Alberta, Canada.

EDUCATION

Bachelor of Applied Science degree (B.A.Sc.) in Civil Engineering (Water Resources Option) from the University of Waterloo, Waterloo, Ontario, Canada, in 1981.

TRAINING

2004: Proper Functioning Condition Trainer Program (US Bureau of Land Management)

2004: Leadership in Energy & Environmental Design Accredited Professional U.S. Green Building Council.

2005: Expert Witness Seminar Certificate of Completion, Engineers & Geoscientists, BC


AWARDS

 2017: Environmental Award, Engineers and Geoscientists British Columbia for Mark Creek Flood Restoration, Kimberley, BC, joint with Aqua-Tex Scientific Consultants Ltd. and Exp Services Inc.

 2010: Vancouver 2010 Olympic Committee, Prime Minster of Canada and Premier of BC, for work on Olympic projects in Callahan Valley, Cypress Bowl, Greater Vancouver and Whistler BC, joint with EBA Engineering Ltd.

 2002: US Green Building Council, LEED v. 2.0 for hydrotechnical design for Vancouver Island Technology Park, Saanich, BC joint with Aqua-Tex Scientific Consultants Ltd.,

 2002: Federation of Canadian Municipalities Award for Blenkinsop Creek Restoration, Saanich, BC, joint with Aqua-Tex Scientific Consultants Ltd.

 2001 Canadian Home Builders Association of Victoria for Swan Creek Restoration, Saanich, BC, joint with Aqua-Tex Scientific Consultants Ltd.


PROFESSIONAL ACTIVITIES

2002-2020: Technical Reviewer, Engineers & Geoscientists BC
2017-2018: Committee Member, Environment and Social Responsibility Society, Canadian Institute of Mining 
2017-2018: Member Institute of Corporate Directors 
2014-2018: BC Director Canadian Water Resources Association
2004-2018: National Director, Canadian Water Resources Association
2014-2014: BC Vice-President, Canadian Water Resources Association
1994-1994: Forest Industry Liaison Committee: Consulting Engineers of BC
1995-1997: BC Director, Canadian Water Resources Association
1992-1993: BC President: Canadian Society of Hydrological Science
1992-1993: Professional Practice Committee, Engineers & Geoscientists BC
1991-1992: Editorial Board, BC Professional Engineer Magazine (Innovation)

EXPERT OPINIONS

1997 Shapiro & Hankinson, Barristers & Solicitors
Expert opinion for ENCON insurers after detailed review of rainfall runoff calculations of a Vancouver based engineering firm (Defendant).

1998: Bellamy & Long, Barristers & Solicitors
Expert opinion on flooding on Arnold Creek in Chilliwack, BC.

2001: Scarlett Manson Angus, Barristers & Solicitors
Expert opinion relating to the alleged flooding of 6092-224th Street in Langley, BC for Alantic Contractors Ltd. (Defendant).

2002: George Kincaid and Sharon Radcliffe, West Vancouver, BC
Expert opinion regarding drainage onto the Kincaid/Radcliffe property (Plaintiff).

2003: Murdy & McAllister, Barristers & Solicitors
Expert opinion regarding land drainage at #24-35060 Clayburn Road, Abbotsford, BC for the City of Abbotsford (Defendant).

2003: Lindsay Kenny, Barristers & Solicitors
Expert opinion on impact of fill on Brohm Lake levels near Squamish, BC for local contractor (Defendant).

2003: Lindsay Kenny, Barristers & Solicitors
Expert opinion on drainage at Westwood Plateau Golf Course in Coquitlam, BC (Defendant).

2004: Miller Thomson, Barristers & Solicitors, 2004
Expert opinion as part of legal team on bridge hydraulics, flooding including review of memoranda and site visit for a MVA in Langley, BC (Defendant).

2007: Whitelaw Twinning, Barristers & Solicitors, 2007
Expert opinion regarding land drainage issues at Westwood Plateau Golf Course, Coquitlam, BC (Defendant).

2012: Alexander, Holburn Beaudin + Lang LLP – Langley, BC
Expert opinion relating to the alleged flooding of a business on the Langley Bypass (Defendant).

2013: Alexander Holburn Beaudin & Lang, LLP, Barristers & Solicitors
Expert opinion for the Tyson Creek Hydroelectric Project, Sechelt, BC relating to hydrology, lake taps, turbidity, sediment, and responsibilities of hydrologists. (Defendant).

2015: Harper Grey, LLP, Barristers & Solicitors
Expert opinion for a drainage problem in Comox, BC, including a hydrological analysis (Defendant).

2019: Morelli Chertkow, LLP
Millard v. Village of Cache Creek, Cache Creek, BC, (Plaintiff) [on-going].
Expert opinion on flooding on Lopez Creek.

2019: Morelli Chertkow, LLP
Kuipers v. City of Kamloops et. al., Jorgensen v. City of Kamloops et. al., Kamloops, BC, (Plaintiff)
Expert opinion on flooding on unnamed gulley.

2018: Rush, Ihas, Hardwick, LLP
Waterway Houseboats Ltd. et. al. v. HMTQ et. al. (Plaintiff), Sicamous, BC.
Expert opinion on flooding on Sicamous Creek.

2018: Whitelaw Twinning, Barristers & Solicitors, 2018
Expert opinion regarding flooding and land drainage issues near Silver star Mountain, BC (Defendant).

2018: Alexander Hollyburn Beaudin + Lang LLP
Fletcher v. Wallberg, Victoria Registry (Defendant) [on-going].
Expert opinion on road and land drainage issues in Saanich, BC.

2017: Bernard LLP
Bandrova Farms Ltd. v. District of Kent, Vancouver Registry, (Plaintiff).
Expert opinion on flooding issues along Fraser River within District of Kent.

2019: Branch McMaster, LLP, Barristers & Solicitors
Expert opinion for road drainage issues for MVA in Chilliwack, BC Cache Creek, BC, including a hydrological analysis (Defendant).

2019: Branch McMaster, LLP, Barristers & Solicitors
Expert opinion for a flooding issue in Cache Creek, BC, including a hydrological analysis (Plaintiff) [on-going]. 

2019: Edwards, Kenny & Bray LLP
Expert Opinion on restoration of Brooklyn and Pup Creeks in Brooklyn, BC, including a hydrological assessment.

2019: Harper Grey, LLP, Barristers & Solicitors
Expert opinion for a flooding issue in Naramata, BC, including a hydrological analysis (Defendant) [on-going].

2019: Kwasnicki Law Corporation
Expert opinion for a land drainage issue in West Kelowna, BC (Defendant)

2019: Harper Grey, LLP, Barristers & Solicitors
Expert opinion for a flooding issue in Naramata, BC, including a hydrological analysis (Defendant) [on-going]. 

2019: Kwasnicki Law Corporation
Expert opinion for a land drainage issue in West Kelowna, BC (Defendant) 



LCI PROFESSIONAL SERVICES

Rainfall
 Rainfall Analyses and Return Period
 Intensity-Duration-Frequency Curves 
 Weather Radar Image Interpretation  

Rivers
 Water Surface Profile Modeling
 Gravel Removal Planning 
 Riverbank Protection Design  

Drainage
 Numerical Stormwater Runoff Modeling 
 Ditch/Channel Hydraulics & Road Drainage 
 Pump Stations & Hydraulic Gates  


Snowmelt
 Snowpack Analysis 
 Altitude Temperature Adjustment 
 Snowmelt Analysis 

Flooding
 Forensic Flood Hazard Assessment 
 River Flood Construction Levels 
 Floodplain Inundation & Evacuation Planning 

Structures
 Dikes, Bridge, Culvert & Canal Hydraulics 
 River Pipeline Crossings 
 Spillway and Reservoir Routing 


Streamflow
 Regional Hydrological Analysis 
 Flood Frequency Analysis 
 Watershed Numerical Modeling

Ocean
 Numerical Wave Modeling 
 Coastal Flood Construction Levels 
 Seawall and Shoreline Protection 

Mining
Mine Water Management Project Planning 
 Ditch & Sedimentation Pond Design 
 Dam Safety Inspection 

CONTACT

Brian David LaCas, FEC, P.Eng., Senior Hydrotechnical Engineer, President

Address:

MNP Tower
1021 West Hastings Street
Suite 900
Vancouver, British Columbia
Canada V6E 0C3 

Phone:

Main Telephone: 604.688.2535
Facsimile: 604.588.5101 

E-mail:

Brian@thelcigroup.com

LaCas Consultants Inc. (LCI)
www.theLCIgroup.com 

Innovative and Cost Effective Hydrotechnical Engineering Solutions. thelcigroup.com

| HYDROLOGY | RIVER MODELLING | RIVER & OCEAN FLOOD CONTROL | FORENSIC ENGINEERING | MINE WATER MANAGEMENT |