Grading Expert Witnesses

Hydrology, Engineering - Water Resources focused on: Flooding, Floodplain Management, Drainage, Surface Water Hydrology, Hydraulic Structures, Grading, Erosion, Permitting,

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...

Civil Engineering, Land Surveying - civil engineering, drainage, grading, utilities, site design, subdivisions, land development

Mr. Neff has expertise in the areas of civil / site engineering, design and review of roadways, utilities, sanitary sewers, storm sewers, water mains, site planning, industrial site design, residential site design, multi-family site design, stormwater management, soil and erosion control, water quality, EPA regulations, and feasibility studies. Mr. Neff has surveying expertise in land surveying including boundary line determination; boundary, topographic and ALTA/ACSM surveys. Mr. Neff has been an expert witness including document analysis and report preparation in land development and drainage cases.

Engineering, Civil Engineering - Civil Engineering, Storm Drainage, Site Development, Grading, Underground Utilities, Athletic Fields, Stadiums, Detention Basins, Construction Claims, Pavement, Roadway, Culverts

Mr. Vura has participated in over a dozen cases in the past 15 years. He is a Registered Professional Civil Engineer in AL, AZ, AR, CO, GA, FL, IL, IN, KY, MA, MD, MI, MO, NE, NJ, NM, NY, NV, NC, OH, PA, RI, SC, TX, VA, WV, WI. Employed at Osborn Engineering since 1997, and currently serving as Executive Vice President and Principal of the infrastructure Group, his responsibilities have included civil engineering management, design, plan and specification preparation, feasibility studies and construction inspection. Project experience includes utilities – waterlines, sanitary & storm sewers – site development, storm water analysis and detention/retention basin sizing and athletic fields.

Civil Engineering, Hydrology - Drainage, Hydrology, Hydraulics, Floodplain Mapping, Storm Sewer, Stormwater Management, Flooding, Storm Drainage, FEMA, Grading, Erosion and Sediment Control, Runoff

Mr. Myers has over 25 years of experience as a civil engineer in Virginia as the engineer-of-record on projects involving hydrologic/hydraulic analysis for land development projects. A Professional Engineer in Virginia since 1999 and a Certified Floodplain Manager since 2012, Mr. Myers is experienced in commercial and residential stormwater management design, floodplain management, erosion and sediment control design, and assessing drainage issues through field investigation and written report.