Erosion Expert Witnesses

Hydrology, Civil Engineering - flood, erosion, dam, river, stream, restoration, hydraulics, streambank, habitat, water quality, levee, channel, riprap, vegetation, sediment, sedimentation, bridge, grade control, storm, stormwater

Dr. Doug Shields has 46 years of experience in water resources and environmental engineering, including 12 years working for the U.S. Army Corps of Engineers (Corps) and 22 years as a Research Hydraulic Engineer at the National Sedimentation Laboratory (NSL) in Oxford, Mississippi. Dr. Shields’ research focused on the response of fluvial systems to human influences and development of environmental design criteria for all types of channel stabilization and modification projects, including streambank erosion controls and management of riverine backwaters. He is a leading authority on stream and river restoration, was a founding member of the ASCE Task Committee on River Restoration, a past chair of the River Restoration committee, and a past chair of the hydraulics and waterways council of the ASCE/EWRI. He has served as an instructor for short courses sponsored by the Corps, ASCE and the State of California. Doug has authored or co-authored more than 310 technical publications and ...

Hydrology, Engineering - Water Resources focused on: Flooding, Floodplain Management, Drainage, Surface Water Hydrology, Hydraulic Structures, Grading, Erosion, Permitting, and other water resource issues.

Mr. Douglas B. Blatchford, PE (AZ, CA, CO, NM, NV, TX, UT) has over 40 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...

Environmental, Engineering - Hydrology, Sewer, Water, Flooding, Groundwater, Hydrogeology, Drainage, Wastewater Treatment, Septic Systems, Utility, Sewer Systems, Sanitary Sewage, Mold, Stormwater Management, Hydraulics, Hazardous Waste, Drinking Water, Waste Management, Erosion, Soils, Pumping, Water Quality, Air Quality

Nationwide experience as hydrologist, environmental engineer, and civil engineer, including for construction, operations, design, inspections, floodplains, contamination, toxicity, hazardous waste, spills, grading, remediation, pollution, sinkholes, health and safety, pumping, modeling, odors, soils, dams, regulations, combined sewers, overflows, aquifers, water distribution, water treatment, hydraulic fracturing, Standard of Care, sedimentation, hydroplaning, wetlands, landfills, monitoring, infiltration/inflow, and metering. Forensic cases for Mr. Dutill have comprised federal and state courts, and include damages from approximately $25,000 to approaching $1 billion, with most between $100,000 to $5M. 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 ...

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...