Hydrology Expert Witnesses
The SEAK Expert Witness Directory contains a comprehensive list of hydrology expert witnesses who testify, consult and provide litigation support on hydrology and related issues. Hydrology expert witnesses and consultants on this page may form expert opinions, draft expert witness reports, and provide expert witness testimony at deposition and trial. The issues and subjects these hydrology expert witnesses testify regarding may include: Hydrology, Drainage, Flooding, Stormwater, Construction, Erosion, Hydraulics, Floodplain, Groundwater, Hydrogeology, Runoff, Water Resources, Fema, Foundations, and Sedimentation.
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James J. Connors, Ph.D.
Expert in Environmental Contamination & Stormwater
James J. Connors & Associates, LLC
Mobile, Alabama
Hydrology, Environmental
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PFAS, AFFF, PCBs, Landfill Leachate, Groundwater Contamination, PFOS, Flooding, Stormwater Runoff, PFOA, CAFO, Erosion, Sedimentation, Above Ground Storage Tanks, Underground Storage Tanks (USTs), Mining, CERCLA, RCRA, Hydrogeology, Hydrology, Environmental Impacts
NATIONWIDE PRACTICE in surface and subsurface hydrology.
EXPERT IN ENVIRONMENTAL CONTAMINATION - Contamination of groundwater, soil, sediment, particulate, and surface-water by a variety of substances, including PFAS (PFOS, PFOA, others), PCBs, pesticides, herbicides, nutrients, radiation, metals, wood preservatives, fuels, microbes, disinfectants, oilfield brine, fracking fluids, drilling mud, BTEX, VOCs, SVOCs, solvents, and chlorinated solvents, such as trichloroethylene (TCE), tetrachloroethylene (PCE), dichloroethylene (DCE), vinyl chloride, chloroform, carbon tetrachloride, 1,1,1-trichloroethane, 1,1-dichloroethane, etc. Also, landfill leachate releases, oil and chemical spills, applications of aqueous film-forming foam (AFFF), underground and above-ground storage tank leaks, concentrated animal feeding operation (CAFO) releases, etc.
EXPERT IN STORMWATER HYDROLOGY - Runoff-related impacts such as flooding, erosion, and sediment transport and deposition.
EXPERT IN GENERAL A...
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David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE
DTW and Associates, Engineers, LLC
California
Civil Engineering, Hydrology
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floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two-time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...
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Masih Bari, PhD, PE
Water Resources, Hydrology & Regulatory Compliance
Santa Monica, California
Hydrology, Environmental Engineering
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Hydrology & Hydraulic Modeling, Groundwater Modeling & Analysis, Stormwater Management, Regulatory Compliance, Environmental Studies, Water Quality, Groundwater Sustainability Plans, Mixing Zone Analysis & Dilution Credit, Aquifer Storage & Recovery, Environmental Permitting
Masih Bari, PhD, PE brings two decades of experience in water resources planning and management, hydrology, and environmental permitting, with a practice focused on defensible technical opinions in regulatory and litigation matters. Dr. Bari’s work centers on hydrologic and hydraulic modeling and analysis, groundwater modeling and evaluation, mixing-zone and dilution analysis, stormwater and watershed planning, and water-quality modeling and compliance. His project portfolio includes groundwater sustainability planning under California’s Sustainable Groundwater Management Act (SGMA), discharge and dewatering permit strategy, and basin-level planning and model development in support of permitting and infrastructure decisions. He has performed hydrologic simulations, watershed-scale evaluations, mixing-zone and dilution studies for municipal agencies and utilities across California and the United States.
Dr. Bari has direct expert-witness experience, including independent model revi...
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Megan E Abadie
Forensic Water & Environmental Engineer
Concord, California
Civil Engineering, Hydrology
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Flooding, Sewer, Lateral, Hydraulic Modeling, Groundwater, Weir, Spillway, Culvert, Pipeline, PACP, Stormwater, Hydrogen Sulfide, Septic, Sinkhole, Water treatment, Water intrusion, Drainage, Green infrastructure, Rain garden, Infiltration
Ms. Abadie is a Civil Engineer with a background in hydrology and water resources. She provides root cause and scope of damage evaluations and expert witness services.
Prior to joining EDT, Ms. Abadie worked in multiple sectors of water and wastewater: groundwater protection, drinking water treatment and distribution, wastewater collection and treatment, urban runoff control, watershed assessment, and asset management. She spent twelve years as a collection system engineer for the City and County of San Francisco where she developed San Francisco’s Combined Sewer Discharge inspection program, installed dozens of flowmeters, walked and crawled through hundreds of miles of sewers, designed two baffles, ran model simulations, investigated flooding claims, oversaw repairs of large underground concrete structures, and pulled a bicycle out of a pump station inlet. Join her for a tour of San Francisco’s most beautiful combined sewer outfall here: https://www.kqed.org/news/11782405/tunn...
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Yasser M. Abdelhamid, PhD
Construction Defect/Geotechnical Expert Witness
Bryant Consultants
California
Geotechnical Engineering, Construction Defects
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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...
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David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE
DTW and Associates, Engineers, LLC
Commerce City, Colorado
Civil Engineering, Hydrology
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floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two-time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...
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Gerald Blackler, Ph.D, P.E., D.WRE
Denver, Colorado
Hydrology, Civil Engineering
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Water Resources, Hydraulics, Floodplain, Flood Forensics, Hydrologist, Hydraulic Modeling, Transportation Drainage, Roadway Drainage, Rainfall, Runoff, Design Storms, Sedimentation, Sediment Transport, Stormwater, Culvert, Stormsewer, Urban Hydrology, Urban Flooding, Construction
Water flows downhill, sometimes water is a resource, sometimes it is an enemy, sometimes it is both. If your case involves the impact of water, my expertise is available for your case. I am an expert in hydrology, hydraulics, the engineering of drainage systems, including culverts, transportation drainage, bridge scour, bridge hydraulics, floodplain management, transportation hydraulics, water resources, and accidental death or drowning near hydraulic structures. My work routinely produces technical evidence that is hard to dispute and easy to understand. My background and experience in consulting and teaching allows me to produce complicated information in a format that is easy to digest, such as video files, and images that explain the complicated physical interactions of hydrology and hydraulics. Some of my past litigation work produced evidence that was not disputed by opposing experts.
My approach is to first understand the case, then to discuss one on one what technica...
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Chad Ballard, PE, CFM
Surface Water and Flood Expert (Nationwide)
High Water Mark
Meridian, Idaho
Hydrology, Civil Engineering
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Floodplain, Flooding, Hydrology, River Hydrualics, Levee Breach, Dam Break/Failure, Stormwater, FEMA, Advanced Modeling, Storm Recreation, Erosion, Rainfall, Flood Forensics, Bridge Hydraulics, Water Resources
Mr. Chad Ballard is a licensed Professional Engineer (P.E.) across multiple states, specializing in water resources, hydrology, and hydraulics. He possesses a deep technical background in advanced flood modeling and stormwater mitigation. Has experience working on cases involving failure of drainage infrastructure, dam/levee failures, scour and erosion, flood damages, hydroplanning, etc.
His core competencies include:
Stormwater and Drainage Design: Designing and analyzing systems to manage stormwater and prevent loss of life and property.
Advanced Numerical Flood Modeling: Expert-level proficiency in hydraulic and hydrologic modeling tools to recreate rainfall and storm events.
Flood Warning Systems: Developed modern flood warning systems for private and public clients.
Forensic Engineering: Assists legal professionals across the United States and Canada.
Mr. Ballard is a recognized educator and leader in his field. He has served as an adjunct faculty m...
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Christopher R Hanstad, P.E., CFM
Flood and Drainage Expert Witness
Hanstad Engineering Services
Champaign, Illinois
Civil Engineering
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Floodway Violations, Floodplain Modeling, Flood Damage and Loss Assessment, Hydrology, Hydraulics, FEMA Floodplain Revisions, Drainage
Chris Hanstad is a Licensed Professional Engineer (IL, IN, KY, WI) and Certified Floodplain Manager with over 15 years of expertise in floodplain analysis and regulatory compliance with the National Flood Insurance Program (NFIP). Since 2018, he has served as an expert witness in flooding and drainage-related litigation, providing written reports, discovery deposition, and trial testimony.
As the lead of Illinois’ Letter of Map Revision (LOMR) program since its inception, Mr. Hanstad has overseen the evaluation and determination of hundreds of LOMR applications, ensuring compliance with rigorous floodplain modeling standards and NFIP regulations. His work directly informs revisions to FEMA floodplain maps.
Mr. Hanstad specializes in assessing the flood risk impact of projects within floodplains, particularly their effects on adjacent properties. He has identified and reported seven floodway violations to FEMA and has provided litigation support in cases involving such violations. ...
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John Hlinka, PE, M. ASCE
Benton, Kentucky
Structural Engineering, Civil Engineering
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civil, railroad, accident, cranes, failures, foundations, structures, drainage, culverts, washouts, hydrology, concrete pump trucks, corrosion, chemical, industrial, building codes, inspections, construction, OSHA Compliance, swimming pools
Mr. Hlinka has worked over 40 years in the Engineering, Procurement and Construction Management market with experience in numerous industries: Chemical, Oil Refinery, Pulp & Paper, Adhesives, Nuclear Power Generation, Nuclear Feed Stock, and Steel. His work has overlapped with residential and commercial industries. Throughout his career he has engineered and managed a myriad of projects in these industries and has provided leadership to the various companies in the capacities of: Site Manager, Design Manager, Project Manager, Construction Supervisor, and currently as President. Design engineering, analysis, and inspection experience includes structural steel, reinforced concrete, stone, masonry, wood, and stormwater drainage.
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John E Skidmore, PE, BSCE
Forensic Civil Engineer (Multi-state)
Owosso, Michigan
Civil Engineering, Hydrology
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Building science, Hydrology, Water leaks, Auto impact assessment, Moisture Intrusions, Drainage, On-site sewage disposal, Construction defects, Flooding, Roofing, Foundations, Geotechnical, Storm damage assessment
Forensic engineer with experience in a wide variety of activities within the civil engineering discipline, including land planning, surveying, hydrology and hydraulics, geotechnical and foundations and on-site sewage disposal facilities. Licensed Professional Engineer in Alabama, Florida, Illinois, Indiana, Iowa, Louisiana, Michigan, Ohio, Pennsylvania, Texas, West Virginia, Wisconsin. Testified as an expert at arbitrations, depositions, and trials. Subjects included drainage and flooding, water intrusions, pipe leaks and structural damage to buildings from vehicle impacts, tree impacts and storms.
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Timothy J. Mayotte, Ph.D., CPG, P.E.
Mayotte Design & Engineering
East Lansing, Michigan
Civil Engineering, Environmental Engineering
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Groundwater, Wastewater, Remediation, Bioremediation, Modeling, Stormwater, Hydrogeology, Hydrology, Geotechnical, Microbiology, Contamination, Geochemistry, Construction, Demolition, Home Inspection
Dr. TImothy Mayotte is President and CEO of Mayotte Design & Engineering, PC, a civil and environmental engineering design firm based in East Lansing, Michigan. Since 2003, MD&E has proved itself a highly responsive design, advocate and risk management partner for clients in the energy, automotive, commercial printing, textile, pharmaceutical, chemical, real estate, and legal industries. MD&E offers a variety of services, specializing in the design and engineering of treatment solutions for wastewater, groundwater, stormwater and contaminated soil, sediment and air.
Dr. Mayotte has assisted clientele across globe, having completed projects in: Alabama; Arizona; California; Colorado; Connecticut; Illinois; Indiana; Iowa; Kansas, Massachusetts; Michigan; Missouri, Mississippi; Nevada; New Jersey; New York; Ohio; Oregon; Tennessee; Texas; Vermont; Virginia; West Virginia; Washington, Wisconsin; Wyoming; British Columbia; Ontario; Quebec; Brazil; China; Czech Republic; Italy; and Mex...
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Douglas B Blatchford, PE, PH, CFM
Water Resource Engineering
Southwest Hydrology & Hydraulics, LLC
Boulder City, Nevada
Hydrology, Engineering
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Water Resources focused on: Flooding, Floodplain Management, Drainage, Surface Water Hydrology, Hydraulic Structures, Grading, Erosion, Permitting, water resource issues, Flooding
Mr. Douglas B. Blatchford, PE (AZ, CA, CO, NM, NV, TX, UT) has over 45 years of experience as a water resource professional. His experience includes dam safety, design and construction, energy, geographic information systems, groundwater hydrology, remote sensing, river systems, and surface water hydrology, in support of his expert witness practice focus area in water resources (flooding, floodplain management, drainage, hydrology, hydraulic structures, grading, erosion, and permitting). Mr. Blatchford served the United States Government (Interior, Reclamation) as the River Operations Manager on the Lower Colorado River, involved with water deliveries to Phoenix, Tucson, Los Angeles, San Diego, and irrigators in southern California, southern Arizona, and Mexico. He actively served west wide in Reclamation’s dam safety program, and interfaced extensively with the USGS, the USACE, NOAA, the Colorado River Basin Forecast Center (CBRFC), Mexico, and many irrigators, local and state agen...
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Andrew J.B. Cohen, PhD, PH
Contaminant Hydrogeologist
GroundwaterU, LLC
Westfield, New Jersey
Environmental, Hydrology
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PhD UC Berkeley, Certified Hydrologist, National Practice, PFAS AFFF PFOA PFOS, Benzene, Chlorinated Solvents, 1 4-dioxane, Forensic Analysis, Modeling, Visualization, Metals, Source Identification, Apportionment, Causation, Expert Rebuttal, vinyl chloride, Groundwater Contamination, Bedrock, Groundwater pollution, Hydrogeologist
CONTAMINANT HYDROGEOLOGIST: Forensic Hydrogeology, Contaminant Fate and Transport, Site Remediation, Contaminant Source & Timing Analysis, Causation Reports & Rebuttals, Apportionment Analysis, PRP Identification, and Liability Allocation. Groundwater pollution, groundwater contamination, soil contamination, sediment contamination, surface water contamination.
EXPERIENCE: 30+ years in consulting, litigation support, research, and teaching.
ACADEMICS: PhD UC Berkeley; Research Associate, Lawrence Berkeley National Laboratory; Adjunct Professor
LEAD AUTHOR of an internationally recognized book about groundwater fundamentals
SPECIALITIES: Groundwater, soil, sediment, and surface water contamination; PFAS, AFFF, PFOA, PFOS, 1,4-dioxane, benzene, emerging contaminants, BTEX, chlorinated solvents (e.g., TCE, PCE, vinyl chloride), vapor intrusion, DNAPL, LNAPL, chromium, CERCLA, RCRA, Superfund, UST, spills, biosolids, landfill, leaching, bacteria, fractured bedrock hydrogeology, risk ...
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Timothy D Bechtel, PhD, PG
Franklin and Marshall College
Lancaster, Pennsylvania
Environmental, Hydrology
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sinkhole, groundwater, landslide, drilling, hydrogeology, rockfall, karst, vibration, blast, earthquake, contamination, pipeline, fracking, water, erosion, construction, stormwater, physics, leak, cave
Dr. Bechtel is geophysicist/geologist, and a world-renowned expert on sinkholes. But not just sinkholes; bedrock conditions, caves, water pollution, and all issues related to karst terranes. Dr. Bechtel has 25+ years of experience in the engineering/environmental industry, as well as faculty positions at Franklin & Marshall College, the University of Memphis and the University of Pennsylvania, and is an appointed member of the International Karst Commission. Dr. Bechtel has been an expert in dozens of sinkole or karst-related cases - often related to causes of sinkholes and/or water problems.
Dr. Bechtel also has expertise and courtroom experience in Unconventional Oil & Gas, hydraulic fracturing (fracking), and fracking-industry-related earthquakes, horizontal directional drilling (HDD), as well as all fields of seismology, seismic hazards, vibration monitoring and analysis, subsidence, soil creep, landslides, rockfalls, non-destructive evaluation of earthen dams and levees, subsu...
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Michael Sheleheda, P.E.
Civil & Environmental Consultants, Inc.
Monroeville, Pennsylvania
Civil Engineering, Geotechnical Engineering
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Stormwater, Erosion and Sediment Control, Hydrology, Landslides and Slope Stability, Foundations, Settlement, Retaining Walls, Geohazards, Pavement Evaluation and Remediation, Earthwork, Construction and Materials Testing, 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...
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Chuck Dutill, PE, DFE
Hydrology and Environmental Engineering Expertise
Heritage Technical Services, Inc.
Philadelphia Area, Pennsylvania
Environmental, Engineering
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Hydrology, Stormwater Management, Sewers, Sewer Systems, Wastewater, Sanitary Sewage, Water, Septic Systems, Flooding, Groundwater, Hydrogeology, Drainage, Mold, Wells, Runoff, Backups, Wastewater Treatment, Utility, Construction, Maintenance
Nationwide experience as hydrologist, environmental engineer, and civil engineer, including for design, contamination, pollution, FOG/grease trap, sinkhole, grading, hydraulics, pumping, water quality, storm sewer, drinking water, water distribution, water treatment, dam, regulations, Standard of Care, waste management, erosion, soil, air quality, water main, detention, hazardous waste, spill, sedimentation, wetland, floodplain, toxicity, remediation, health and safety, modeling, odor, combined sewer, overflow, aquifer, hydraulic fracturing, hydroplaning, and metering.
Forensic cases for Mr. Dutill have comprised state and federal courts. As indicated in feedback from attorneys on expert witness cases, some of the strengths of Mr. Dutill include understandable guidance, responsiveness, timeliness, communication, effective report writing, strong testimony (including on cross), efficiency, organization, and assistance with framing case issues.
Approximately 45% of his cases have be...
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Kenneth R Dees, P.E.
Storm Water Engineering Senior Technical Authority
CM2E
Fort Worth, Texas
Civil Engineering, Hydrology
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floodplain, detention pond, drainage failures, downstream impact, flooding claims, FEMA, hydrology, hydraulics, diversion of storm waters, rivers, creeks, bridges, culverts, site plans, subdivision development, stormwater design, site development, flooding claims, regulatory compliance, forensice engineering
Kenneth Dees, P.E. CFM has over 40 years of experience in the water resources industry and is a senior technical authority regarding storm water, drainage and floodplain engineering. A graduate of Southern Methodist University (1984), he is a business owner, project manager and civil engineer who has been involved in some of the largest projects in the history of the State of Texas. He has considerable expertise pertaining to topics related to storm water engineering of all types.
After graduation from SMU, Mr. Dees began his career at MCI Telecommunications where he was responsible for tracking all construction projects on a nationwide scale and reporting to the chief engineer for this multi-billion dollar company. During this time, he made a discovery of how to connect maps to data which greatly expanded the capability to manage infrastructure of all types. This discovery lead to creation of a software company a short three years after college, which would morph into Chalk Mo...
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L. David Givler, MSCE, PE
Givler Engineering, Inc.
San Antonio, Texas
Civil Engineering, Hydrology
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flood, drainage, storm, water, floodplain, dam, hydraulics, FEMA, municipal, stormwater regulation, flood plain analysis, dam construction and maintenance, road construction and repair, water resources, runoff, flow, pipe, street, utility
Registration
Professional Engineer, 1990 (PA No. PE 040565 E), 1993 (TX No. 73842), 2023 (OH No. PE.88791), 2023 (KY No. 38514), 2023 (OK No. 34041), 2023 (FL No. PE95991), 2023 (NM No. 28602), 2023 (MI No. 6201312442)
Experience
Experienced in hydrology and hydraulics. Performed numerous flood studies for rivers and creeks, bridge hydraulic studies, reservoir analyses, drainage designs and storm water pollution prevention plan designs.
Experienced with dams. Designed new dams, performed inspections, analyzed seepage conditions, developed rehabilitation programs, developed Emergency Action Plans, developed foundation-grouting programs and constructed and operated physical models.
Experienced city engineer, having served in multiple cities. Designed public street, drainage, and utility improvements. Reviewed subdivision plats, proposed utility modifications and ordinances.
Experienced in site development and subdivisions. Designed roads, utilities, lot layouts, grading pla...
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Gerald Blackler, Ph.D, P.E., D.WRE
Texas
Hydrology, Civil Engineering
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Water Resources, Hydraulics, Floodplain, Flood Forensics, Hydrologist, Hydraulic Modeling, Transportation Drainage, Roadway Drainage, Rainfall, Runoff, Design Storms, Sedimentation, Sediment Transport, Stormwater, Culvert, Stormsewer, Urban Hydrology, Urban Flooding, Construction
Water flows downhill, sometimes water is a resource, sometimes it is an enemy, sometimes it is both. If your case involves the impact of water, my expertise is available for your case. I am an expert in hydrology, hydraulics, the engineering of drainage systems, including culverts, transportation drainage, bridge scour, bridge hydraulics, floodplain management, transportation hydraulics, water resources, and accidental death or drowning near hydraulic structures. My work routinely produces technical evidence that is hard to dispute and easy to understand. My background and experience in consulting and teaching allows me to produce complicated information in a format that is easy to digest, such as video files, and images that explain the complicated physical interactions of hydrology and hydraulics. Some of my past litigation work produced evidence that was not disputed by opposing experts.
My approach is to first understand the case, then to discuss one on one what technica...
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Yasser M. Abdelhamid, PhD
Construction Defect/Geotechnical Expert Witness
Bryant Consultants
Carrollton, Texas
Geotechnical Engineering, Construction Defects
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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...
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Jens Figlus, PhD
Bryant Consultants
Carrollton, Texas
Civil Engineering, Engineering
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Wave modeling, subsidence, scour, vessel wakes and propeller wash, Environmental fluid mechanics, Fluid-sediment-structure interactions, Coastal processes, Field measurements, Hydraulic engineering, Coastal protection, Hydrology, Sedimentation, Coastal Erosion
Jens Figlus is a coastal engineering expert with 12 years of experience. He works with Bryant on expert witness cases and projects related to sediment erosion, coastal flooding, water waves, fluid-soil-structure interactions, and issues related to ship-induced hydrodynamics, such as vessel wakes and propeller wash. His background is in applied coastal research and engineering, hydraulic engineering, and environmental fluid mechanics.
Dr. Figlus is an Associate Professor in the Ocean Engineering Department at Texas A&M University. He heads the Coastal Engineering Laboratory (CEL) on A&M’s Galveston Campus and is a distinguished partner with the A&M Institute for a Disaster Resilient Texas (IDRT).
His expertise includes field and laboratory measurements (piezo-electric, acoustic Doppler, sediment tracer, optical backscatter, laser anemometry, remote sensing) as well as process-based numerical modeling (CShore, XBeach, Delft3D, Funwave) related to nearshore and estuarine hydrodynamic...
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David T Williams, PhD, PE, PH, CFM, CPESC, F.ASCE, D.WRE
DTW and Associates, Engineers, LLC
Texas
Civil Engineering, Hydrology
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floodplain flooding, hydrology, river hydraulics, stream bank protection, stream restoration, fluvial geomorphology, levees, erosion control, stream bank failure, erosion control plans, best management practices, FEMA floodplain studies
Dr. David Williams, PE (CO, AZ, CA, LA, MO, NM, TX, HI, MS, OR, WA) has over 45 years of experience in the water resources industry and is known for his contributions to the industry. He is also a recognized expert in sedimentation engineering and in developing innovative solutions to difficult hydraulic and hydrologic design problems in rivers and estuaries. Dr. Williams previously served as a two-time President of the International Erosion Control Association (IECA). He has served as chair of the American Society of Civil Engineers (ASCE) Technical Committees on Sedimentation, Computational Hydraulics, River Restoration, and Risk, Uncertainty and Probabilistic Approaches. He served as a committee member of ASTM A05.12 (Wire specifications) and on ASTM D18.25 (Erosion Control Products). While chair of the Federal Interagency Technical Committee on Sedimentation, he worked with hydraulic and sedimentation experts from the Federal Highway Administration, Bureau of Reclamation, U.S. ...
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Michael F Myers, PE
Storm Drainage Expert
30 Scale, LLC
Palmyra, Virginia
Civil Engineering, Hydrology
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Drainage, Hydrology, Hydraulics, Storm Sewer, Stormwater Management, Flooding, Storm Drainage, Grading, Erosion and Sediment Control, Runoff
Michael Myers, P.E. brings over 30 years of civil engineering experience serving as engineer-of-record on a wide range of land development projects involving stormwater management and design. A licensed Virginia Professional Engineer since 1999, Mr. Myers is well-versed in storm drainage, erosion and sediment control, and the investigation of complex stormwater management issues. He has authored detailed technical expert reports in support of legal proceedings and offers clear, grounded analyses as part of his expert witness services. Resume provided on request.
You can also find Hydrology Expert Witnesses in:
Alabama, California, Colorado, Idaho, Illinois, Kentucky, Michigan, Nevada, New Jersey, Pennsylvania, Texas, and Virginia
