Meet Marshall A. Hayrikian, M.S., P.E.

Geotechnical and environmental engineering expertise supporting development, infrastructure, and construction throughout Southern California.

Marshall A. Hayrikian is a California Professional Civil Engineer with 18 years of experience in geotechnical and environmental engineering. His background combines field investigations, engineering analysis, technical reporting, construction observations, and project leadership.

As Founder, Principal Engineer, and President of Marshall Geoscience, Marshall directs the firm’s technical practice, business strategy, and daily operations. He works closely with owners, developers, architects, engineers, contractors, and reviewing agencies to address site conditions and guide projects from conceptual design through construction.

His experience spans residential and commercial development, hillside properties, transportation infrastructure, industrial facilities, and water and energy projects.

Geotechnical Investigations and Engineering Analysis

Planning and oversight of field exploration, laboratory testing, subsurface evaluation, and geotechnical report preparation to establish practical recommendations for design and construction.

Foundation Design, Settlement, and Liquefaction

Engineering analysis and recommendations for shallow and deep foundations, settlement considerations, and liquefaction potential.

Slope Stability and Landslide Evaluation

Assessment of slope stability and landslide conditions, with recommendations to help manage geotechnical risks on hillside and landslide-prone properties.

Retaining Walls, Excavation, and Shoring

Evaluation of lateral earth pressures, retaining wall systems, excavation support, and shoring requirements for projects involving challenging site conditions and subterranean construction.

Environmental, Groundwater, and Methane Services

Experience in environmental investigations and reporting, groundwater evaluation and remediation, methane investigations and design, soil corrosivity, and percolation studies.

Construction Observations and Special Inspections

Oversight of grading observations, soil special inspections, field testing, and construction coordination to evaluate conformance with engineering recommendations.

Professional Experience and Leadership

Marshall Geoscience — Founder, Principal Engineer & President

Glendale, California | 2024–Present

Marshall founded and leads Marshall Geoscience, a geotechnical and environmental engineering consulting firm serving Southern California. The firm has completed more than 1,000 projects throughout the region.

His responsibilities include principal engineering oversight, technical review, client coordination, proposal development, staffing, quality standards, and management of project budgets and schedules.

Applied Earth Sciences — Senior Project Engineer, Deputy Grading Inspector & Partner

Glendale, California | 2014–2023

Marshall managed and delivered approximately 150–200 geotechnical projects annually while supervising a team of up to 10 professionals. His responsibilities included engineering analysis, technical reporting, field and laboratory coordination, client relationships, and executive leadership.

Projects included residential developments, hillside construction, subterranean parking facilities, commercial and industrial properties, hotels, schools, hospitals, roads, and bridges.

TechnoSoil — Staff Geotechnical Engineer

Glendale, California | 2014–2015

Marshall directed field activities and scheduling, supervised laboratory testing, prepared site plans and geologic cross sections, and developed proposals, inspection reports, compaction reports, and final reports.

Early Engineering Experience

Earlier roles included field geotechnical engineering at Renewable Resource Consultants, geotechnical internship and field technician work at GeoPentech, and a student position with Los Angeles County Public Works.

Representative Project Experience

Reservoir and Dam Infrastructure

Marshall contributed to geotechnical services during construction of the Upper Chiquita Reservoir and Dam in Orange County and to the geotechnical investigation of Elysian Reservoir in Los Angeles.

Renewable Energy Facilities

His project experience includes geotechnical investigations for wind turbine farms in Texas, Oklahoma, Indiana, and other locations.

Residential, Commercial, and Infrastructure Development

His broader experience includes single-family and multifamily buildings, hillside developments, deep parking structures, industrial properties, transportation facilities, pipelines, and tunnels.

Education and Professional Credentials

Education

• Master of Science in Civil Engineering, Geotechnical Emphasis — University of Oklahoma
• Bachelor of Science in Civil Engineering — California State Polytechnic University, Pomona

Professional Licensure and Inspection Credentials

• California Professional Civil Engineer, P.E.
• City of Los Angeles Deputy Grading Inspector
• International Code Council Certified Special Soils Inspector
• Certified Gas Vapor Barrier Inspector
• Nuclear Gauge Certified

Safety Training and Certifications

• OSHA 10
• OSHA 30
• OSHA 40-Hour HAZWOPER

Professional Affiliations

• CalGeo
• American Society of Civil Engineers
• Armenian Engineers and Scientists of America

Discuss Your Project with Marshall

Whether you are planning a development, evaluating a hillside property, or addressing geotechnical concerns during construction, Marshall Hayrikian can help assess site conditions and identify the engineering considerations that shape your next steps.

Engineering analysis and recommendations for shallow and deep foundations, settlement considerations, and liquefaction potential.