Stewart Engineering provides comprehensive geotechnical engineering services throughout the Hawaiian Islands. Since 1990, we have completed over 850 projects ranging from single-family residences to major resort developments, public infrastructure, and military installations. Our deep understanding of Hawaii's unique volcanic geology, coral formations, and coastal conditions enables us to deliver practical, site-specific engineering solutions.
We provide thorough subsurface investigations and detailed geotechnical reports to support project planning, design, and permitting.
Subsurface Exploration
Test pit and boring excavation and logging
Soil and rock sampling
In-situ field testing
Engineering Analysis
Foundation design recommendations
Bearing capacity and settlement analysis
Slope stability evaluation
Liquefaction and seismic hazard assessment
Lateral earth pressure analysis for retaining structures
Pavement section design
Geotechnical Reports
Preliminary geotechnical assessments
Design-level geotechnical engineering reports
Percolation and infiltration studies
Corrosion potentialÂ
Our experienced field engineers and technicians provide on-site observation and testing throughout construction to verify that earthwork and foundation elements are installed in accordance with project plans, specifications, and our geotechnical recommendations.
Earthwork Services
Grading observation and documentation
Compaction testing (nuclear density gauge)
Sampling and laboratory analysis of imported soilsÂ
Trench backfill observation
Slope construction monitoring
Pile observation and documentation
Proof-rolling evaluation
When structural distress, foundation movement, slope failures, or other geotechnical problems occur, Stewart Engineering applies forensic investigation methods to identify root causes and recommend corrective measures.
Investigation Services
Foundation settlement and heave analysis
Slope and retaining wall failures
Post-construction subsidence and slope creep
Forensic Analysis
Document and design review
Supplemental subsurface investigation
Laboratory testing of on-site soils
Engineering analysis and causation determination
Repair and remediation recommendations
Stewart Engineering provides authoritative expert opinion services for attorneys, insurance companies, and property owners in matters involving geotechnical and geological issues.
Expert Services
Independent technical review and analysis
Written expert opinion reports
Case evaluation and consultation
Deposition and trial testimony
Mediation and arbitration support
Areas of Expertise
Construction defect claims
Property damage disputes
Slope failure and landslide litigation
Foundation performance issues
Drainage and water intrusion matters
Professional standard of care review
Insurance claims evaluation
Our principals have provided expert testimony in Hawaii state and federal courts, offering clear, objective, and defensible opinions grounded in decades of local engineering experience.