H&A personnel consists of registered geotechnical and civil engineers, certified engineering geologists, laboratory and field engineering technicians, deputy inspectors, experienced technical support staff and other State licensed specialty professional/geotechnical subconsultants and subcontractors.

ENGINEERING/GEOLOGY PROFESSIONALS


David T. Hamilton, PE, GE

President/Principal Geotechnical Engineer
Mr. David T. Hamilton has over 22 years of broad engineering experience involving geotechnical and geological investigations for industrial, infrastructure, public works, commercial, and private projects. Mr. Hamilton taught Soil Mechanics and Foundations as well as Solid Waste Engineering in both the undergraduate and graduate civil engineering programs at Loyola Marymount University in 2002 and 2003. He has served on the California Geotechnical Engineering Association Board of Directors for 10 years. He has extensive experience in shallow and deep foundation design, slope stability analyses, pavement design, landfill design, and construction testing and inspection.

MS Civil/Geotechnical Engineering, University of California, Berkeley, 1995
BS Civil Engineering, Loyola Marymount University, Los Angeles, 1994

Eirik F. Haenshcke, PG, CEG

Senior Engineering Geologist
Over 30 years of experience in applied engineering geology practice, involving preliminary site investigations for infrastructure, public works construction, commercial, residential projects; fault rupture hazard investigations, identification and assessment of active landslides, evaluation/remediation of post-construction distress conditions, and evaluation of site hydrologic conditions. Services include field assessment of site geologic conditions, fault trench studies, logging exploratory excavations, downhole geologic logging of large diameter borings, and aerial photograph interpretation. Mr. Haenschke has provided expert witness testimony related to earthquake effects, ground water seepage and other geologic matters. Member AEG.

BS, Engineering Geology, University of California, Los Angeles, 1985
MS, Geology, California State University, Los Angeles, 1996

Amir Khalaj, BS

Senior Project Engineer
Over thirty years of comprehensive geotechnical experience involving engineering analysis and design, public works infrastructure, industrial facilities, commercial/retail and residential geotechnical investigations, shallow and deep foundation design and hillside construction. He has played an integral role in planning and execution of geotechnical investigations, coordination of field explorations, sampling and logging of borings, laboratory and construction testing. Certifications: Los Angeles County Grading Deputy, Nuclear-Gage Certified.

BS, Civil Engineering, California State University, Fresno, 1979

ADMINISTRATIVE/BUSINESS PERSONNEL


Ale Lybrook

Administrative Assistant
Performs office and client relations, word processing and maintains corporate and office files. Assists in the daily operations of scheduling, report preparation and analysis.