Othmane Lahrach · Senior Project Manager · Civil Engineer · Member, Engineers and Geoscientists BC (10 years) · B.App.Sc., Civil Engineering, Université Laval
Independent construction expert witness consulting for legal counsel — grounded in 10 years of civil construction industry experience across British Columbia.
Litigation support for construction disputes — delay, cost, and defect matters — from a practitioner who has delivered the work.
Technical scope
Practical analysis of how civil work is planned, coordinated, documented, and delivered — framed for counsel, tribunals, and the court.
Technical review of underground utilities, duct banks, hydro and telecommunications infrastructure, dewatering, and utility coordination. Analysis considers constructability, sequencing, site constraints, and the contemporaneous project record.
Assessment of critical-path schedules, as-planned versus as-built performance, concurrent delay, disruption, and productivity loss. Findings are tied to schedule logic, project records, and the events alleged to have affected completion.
Review of scope interpretation, trade coordination failures, back-charges, and subcontractor default. The analysis distinguishes contractual responsibility from field execution and tests each position against the available documents.
Quantum analysis, change-order evaluation, cost-control record review, and estimate assessment. Cost positions are examined for causation, support, allocation, and consistency with the work performed.
Assessment of workmanship, specification compliance, and the reasonable scope and cost of remediation. The review considers relevant drawings, specifications, inspections, site conditions, and corrective work.
Analysis of records, correspondence, meeting minutes, change documentation, and site reporting as evidence of performance. The objective is a clear chronology and a technically grounded interpretation of what the record supports.
Professional background
Civil construction leadership across infrastructure, utilities, transportation, excavation, and site development in British Columbia.
Senior Project Manager · Civil Engineer · Member, Engineers and Geoscientists BC (10 years)
A Civil Engineer and Senior Project Manager with 10 years of experience in the construction industry, delivering civil infrastructure, utility, transportation, excavation, and site-development work across British Columbia. Core strengths include project planning, scheduling, cost control, procurement, contract administration, risk management, stakeholder coordination, and field operations.
Leadership from pre-construction through completion, including planning, budgeting, scheduling, procurement, contract administration, risk management, client coordination, and field execution.
Field coordination, scheduling, documentation, quality oversight, and stakeholder coordination across active, multi-contractor sites.
Litigation support
Technical assistance that is proportionate to the matter, clear in its reasoning, and prepared for scrutiny.
Construction opinions are strongest when they connect the record to the reality of delivering the work.
Engagements can begin with a focused preliminary review or proceed through formal reporting and testimony. Scope is established with retaining counsel and kept aligned with the issues in dispute.
Written opinions prepared to court standards, with a clear methodology, referenced project records, and conclusions that can be traced to the evidence.
Targeted document review, assistance with interrogatories, and development of technical questions that clarify the construction issues in dispute.
Clear, composed explanation of technical opinions at trial or arbitration, with complex construction concepts communicated in accessible terms.
Early confidential review of the technical merits, key records, and potential evidentiary gaps before counsel commits to a full expert engagement.
Technical briefing and settlement-position analysis to help counsel understand the practical strengths, weaknesses, and ranges of the construction claim.
For attorneys
Initial inquiries are confidential and without obligation.