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29 Years
experience
Expert Geotechnical Engineering Services
Since our founding in 1997, TerraPacific has established itself as a premier geotechnical consulting engineering firm serving clients across the Southwest. We combine over 100 years of combined experience in geotechnical science with practical problem-solving to deliver defensible reports and actionable recommendations. Our team of licensed engineers, geologists, and certified technicians specializes in forensic investigations, geotechnical feasibility studies, and construction monitoring services. We provide tailored solutions for slope stability analysis, expansive soil studies, and foundation evaluations while maintaining rigorous technical standards. Our commitment to quality is demonstrated through our AASHTO accredited soils laboratory and field testing capabilities.

With deep expertise in seismic assessments and moisture intrusion analysis, we help clients manage risk and achieve cost-effective outcomes. We serve law firms, HOAs, developers, architects, and homeowners with clear, evidence-based analysis. Our geographic focus spans California, Nevada, Arizona, and New Mexico, where we apply localized geological knowledge to complex engineering challenges. We maintain strict adherence to professional ethics and technical excellence in every project we undertake. Our track record of successful remedial earthwork designs and expert witness testimony reflects our industry-leading expertise in geotechnical forensics.
Services
Geotechnical Investigations Forensic Analysis Construction Monitoring Slope Stability Expert Testimony Soils Testing Foundation Evaluations Moisture Intrusion Earthwork Design Seismic Assessments
Details
  • Year established: 1997
Highlights and features
  • Licensed engineers with 100+ combined years of geotechnical expertise
  • AASHTO accredited soils laboratory for precise testing
  • Specialized slope stability analysis and landslide mitigation
  • Expert witness services with defensible technical documentation
  • Comprehensive geotechnical assessments for legal proceedings
Associations and certifications
  • AASHTO
Services
Geotechnical Investigations
Our comprehensive geotechnical investigations provide critical data for development projects. We conduct subsurface exploration, laboratory testing, and geologic assessments to identify soil stability and groundwater conditions. Our team delivers actionable reports that guide foundation design and earthwork specifications while maintaining compliance with engineering standards.
Forensic Analysis
We specialize in investigating geotechnical failures including landslides and foundation distress. Our forensic engineers analyze soil behavior, construction practices, and environmental factors to determine root causes. We provide expert testimony and remediation recommendations supported by rigorous technical analysis for legal and insurance claims.
Construction Monitoring
Our field technicians provide real-time construction monitoring for earthwork and foundation installations. We verify compliance with design specifications through grading observation, materials testing, and compaction verification. Our AASHTO-accredited soils lab ensures quality control for pavement systems and structural fills during active construction projects.
Slope Stability
We assess slope stability risks and design remediation systems for residential and commercial properties. Our engineers analyze soil shear strength, water infiltration, and seismic impacts to develop stabilization solutions. Services include retaining wall design, drainage modifications, and ongoing slope performance monitoring.
Expert Testimony
Our licensed professionals provide expert witness services for legal disputes involving geotechnical issues. We prepare detailed technical reports, site evaluations, and demonstrative evidence for court proceedings. Our testimony addresses construction defects, property damage claims, and environmental compliance matters with clear, defensible engineering analysis.
Questions
What geotechnical services do you offer for homeowners?
We provide foundation evaluations, slope stability assessments, and expansive soil testing to identify structural risks and recommend repair solutions.
Can you assist with legal cases involving soil-related property damage?
Yes, we provide expert witness services including forensic analysis, technical reports, and court testimony for geotechnical disputes.
Do you have testing capabilities for construction projects?
Our AASHTO accredited soils lab performs compaction testing, moisture analysis, and material strength evaluations for construction quality control.
What areas do you serve beyond San Diego?
We operate throughout California, Arizona, Nevada, and New Mexico with specialized knowledge of Southwest geological conditions.
How do you approach slope repair projects?
We conduct detailed stability analysis then design customized solutions combining structural reinforcement, drainage systems, and soil stabilization techniques.
Can you help with new development feasibility studies?
Yes, we perform site assessments to evaluate soil suitability, groundwater conditions, and geologic risks before construction begins.