Mr. Walter McBrier
GCM Group LLC
2323 West Spring Mountain Dr
BOISE, ID 83702
BOISE, ID 83702
Office: 208-996-9896
Introduction
Walter McBrier, P.E., is a construction executive and expert witness specializing in forensic analysis of complex construction disputes. With 20+ years of experience as a Licensed Professional Engineer, VP of General Contracting, and Global Cost Manager, he provides defensible expert testimony in schedule delay, cost overrun, and change order claims. His 360-degree background ensures clear, concise, and credible opinions in litigation, arbitration, and mediation.
Areas of Expertise
- Building Contractor Liability
- Civil Engineering
- Construction
- Construction Damages
- Construction Insurance
- Construction Safety
- Scheduling Delay & Analysis
- Structural Engineering
- Water Utility
Expert Background
- Q: Please list your professional accreditations, degrees, licenses, and certificates granted:
- A: Licensed Professional Engineer (Civil) — State of Idaho; B.S. Mechanical Engineering, Montana State University; Member AACE International, Member ID 465322
- Q: Please list your affiliations or memberships in any professional and/or industry organizations:
- A: AACE International; GCM Group LLC (Founder & Principal)
- Q: On how many occasions have you been retained as an expert?
- A: 10
- Q: For what area(s) of expertise have you been retained as an expert?
- A: Construction delay analysis, CPM schedule forensics, cost damages, change order disputes, differing site conditions, acceleration claims, subcontractor disputes, contract interpretation, standard of care analysis
- Q: In what percentage of your cases were you retained by the plaintiff?
- A: 40%
- Q: In what percentage of your cases were you retained by the defendant?
- A: 60%
- Q: On how many occasions have you had your deposition taken?
- A: 3
- Q: When was the last time you had your deposition taken?
- A: 2025
- Q: On how many occasions have you been qualified by a court to give expert testimony?
- A: 0 — arbitration and mediation focused practice to date
- Q: For how many years have you worked with the legal industry as an expert?
- A: 2
- Q: What services do you offer? (E.g.: consulting, testing, reports, site inspections etc.)
- A: Expert reports and declarations, deposition testimony, litigation support, document review, forensic schedule analysis, cost damages analysis, site inspections, case strategy consulting, opposing expert rebuttal
References
Available Upon Request