Retaining Walls Expert Witnesses

Structural Engineering, Engineering - Wood, masonry, steel, concrete structures. Construction defect, insurance litigation, professional liability claims. Seismic/wind design, code review, standard of care analysis. Also foundations, underpinning, retaining walls, and tie-backs. Extensive graphics and animations capabilities.

Josephson-Werdowatz & Associates (JWA), founded in 1988 and with licenses in thirty states, has provided structural design and construction defect investigations/evaluations across the United States and abroad. Structural evaluations included wood, masonry, steel, and concrete structures, with particular emphasis on seismic and wind design. JWA has experience working with specialty materials such as acrylic, aluminum, and glass as well. Evaluations also include code review and analysis, and standard of care analysis. JWA has extensive experience with geotechnical structures such as special foundations, underpinning, retaining walls, tie-backs, and soil nails, among others. JWA strives for a reasoned, accurate, and practical solution to structural engineering problems and deficiencies. Principal Structural Engineers Carl H. Josephson, PE, SE; Dan R. Werdowatz PE, SE; and Stephen P. Kerr, PE, SE have been retained as expert witnesses in over 1,500 cases for plaintiff and defense cli...

Structural Engineering, Engineering - Wood, masonry, steel, concrete structures. Construction defect, insurance litigation, professional liability claims. Seismic/wind design, code review, standard of care analysis. Also foundations, underpinning, retaining walls, and tie-backs. Extensive graphics and animations capabilities.

Josephson-Werdowatz & Associates (JWA), founded in 1988 and with licenses in thirty states, has provided structural design and construction defect investigations/evaluations across the United States and abroad. Structural evaluations included wood, masonry, steel, and concrete structures, with particular emphasis on seismic and wind design. JWA has experience working with specialty materials such as acrylic, aluminum, and glass as well. Evaluations also include code review and analysis, and standard of care analysis. JWA has extensive experience with geotechnical structures such as special foundations, underpinning, retaining walls, tie-backs, and soil nails, among others. JWA strives for a reasoned, accurate, and practical solution to structural engineering problems and deficiencies. Principal Structural Engineers Carl H. Josephson, PE, SE; Dan R. Werdowatz PE, SE; and Stephen P. Kerr, PE, SE have been retained as expert witnesses in over 1,500 cases for plaintiff and defense cli...

Civil Engineering, Failure Analysis - Construction Design Failures, Drainage, Earthmoving/Mining/Paving Equipment, Parking Lot Design and Maintenance, Excavation and Embankment, Bridge Design, Retaining Walls, Construction Management Issues, Highway and Roadway Design, Lighting, Signage, Traffic Control, Bituminous and Concrete Pavement

Andrae Holliday is a Civil Engineer Expert for Solution Engineering Group. He consults on all aspects of construction management and design; highway rehabilitation and construction; highway/roadway design; earthmoving/mining/paving equipment use and dealer training; and conducts expert inspections for roadway, parking lot, and construction matters. Some practice areas include excavation and embankment, bituminous and concrete pavement, retainage walls, drainage, building construction, bridge substructure and superstructure, intersection design and construction, lighting, signing, surveillance, traffic control, and landscaping. He has over twenty-five years of experience with construction management, field inspections, commercial planning, and engineering design. Leveraging that decades-long background, he is especially skilled at running an investigation that encompasses complex technical issues with the goal of determining why an event happened the way it did. Dr. Holliday is pas...

Structural Engineering, Building Inspection - Forensic Engineering, Structural Failure, Construction Issues, Special Inspections, Building Evaluation, Building Defects, Trips and Falls, Building Preservation, Building Repair, Retaining Walls, Foundations, Building Codes

Zohaib A. Alvi, PE is a Civil, Structural, and Forensic Engineering Consultant, and Principal of za/engineering. He is a graduate of State University of New York, Farmingdale State College, and holds a dual Bachelors of Science degree in Architectural Technology and Construction Management, along with an Engineering Leadership Certificate from Cornell University, and earned his Master of Engineering from SUNY Buffalo. He is a Licensed Professional Engineer (P.E.) and maintain licensure in New York and multiple other states. He has extensive experience in the evaluation, repair, and rehabilitation of existing structures and historic buildings, verifying construction compliance with applicable building codes and contract specifications, evaluating impact of construction errors, change orders, and damages during construction. He is also highly experienced in forensic investigations evaluations, to determine the cause and origin of structural deficiencies, damage following accidents, w...

Structural Engineering, Construction Defects - COLLAPSE ANALYSIS, STORM DAMAGE, RETAINING WALLS, BUILDINGS, FOUNDATIONS, HISTORICAL RENOVATION, STRUCTURAL ASSESSMENT

Professional Memberships: Board Certified Diplomate in Forensic Engineering by National Academy of Forensic Engineers (NAFE) American Society of Civil Engineers (ASCE) American Concrete Institute (ACI) American Institute of Steel Construction, Inc. (AISC) National Council of Examiners for Engineering and Surveying (NCEES) National Society of Professional Engineers (NSPE) Professional Experience: Responsible for project management and design at Allegheny Design Services and Forensic Investigations at CF Forensics. Experience includes over 40 years in structural design and project management for industrial, commercial, institutional, and nuclear/chemical facilities utilizing steel, concrete, masonry, and wood. Past accomplishments include design and construction administration of health care facilities, hotels, schools, shopping centers, aircraft hangars, numerous retail facilities, and numerous forensic engineering assignments.

Civil Engineering, Geotechnical Engineering - Stormwater, Erosion and Sediment Control, Hydrology, Landslides and Slope Stability, Foundations, Settlement, Retaining Walls, Geohazards, Pavement Evaluation and Remediation, Earthwork, Construction and Materials Testing, and Americans with Disabilities Act (ADA) Accessibility.

Mr. Sheleheda specializes in geotechnical and civil engineering. His experience includes providing geotechnical engineering design/expertise for all aspects of land development and construction. Projects have included establishing procedures for subsurface explorations, boring layout, soil sampling, and laboratory testing programs. Michael has authored geotechnical reports regarding deep, shallow, and specialty foundation construction for projects in the real estate, natural gas, manufacturing, mining and public client sectors. Also, he has investigated and provided remedial recommendations for landslides, carbonaceous (expansive) shale, retaining walls, karst, geohazards, and mine grouting/subsidence. His responsibilities have included preparing bid packages, authoring specifications, and construction level drawings, as well as preparing expert reports for the legal and insurance industries. In addition, Michael has experience in the preparation of erosion and sediment control pla...

Geotechnical Engineering, Construction Defects - Civil Engineering, Expansive Soil, Foundation Analysis and Design, Settlement, Heave, Pavement, Retaining Walls, Slope Stability, Numerical Modeling, Seepage, Drainage, Erosion, Hydrology, Seismic, Earthquake Engineering, Laboratory Testing, Structural Engineering, Construction Defects

Dr. Abdelhamid has been designated as an expert witness for many litigated cases. Dr. Abdelhamid is heavily involved in performing forensic geotechnical and geophysical investigations for several problematic foundations, pavements, retaining walls and slopes. He devises protocols for geotechnical and geophysical testing, in-situ long-term monitoring, lab testing and analysis. He is also heavily involved in preparing and reviewing proposals and expert reports for geotechnical exploration and litigated and non-litigated forensic projects. Dr. Abdelhamid is responsible for meeting clients during the proposal phase, the investigation phase and after releasing the final report to ensure client satisfaction. Dr. Abdelhamid has performed work at wide variety of forensic projects. He evaluated numerous residential buildings from single family house to a whole subdivision. Dr. Abdelhamid also evaluated many commercial, school, hospital, garage buildings. He performed stability analysis for v...