Concrete Slabs / Foundations Expert Witnesses: 23

Jose Villalobos, PE, is a licensed Civil and Corrosion Engineer with over 48 years of experience in the design and condition assessment of corrosion protection systems for municipal infrastructure including Water and Wastewater Conveyance, Treatment, and Storage.

Mr. Villalobos and his team at JLV Wolf Inc. are based in San Leandro, California and specialize in assisting owners and engineering firms when it comes to forensic investigations. With their help, clients can collect all the needed information to properly assess structural integrity or causes of the structural failure. The firm offers services throughout the US.

Litigation Support - Mr. Villalobos provides professional assistance to owners, design engineers, and attorneys in evaluating operational issues at water and wastewater plants that may require forensic investigations. He is retained for cases involving the deterioration of Concrete and Corrosion of Metals in Water and Wastewater Facilities including atmospheric, immersed, and buried exposures at:

Relevant Project Experience (Partial List):

• A.C. Transit, Oakland, Bus Maintenance Facility Buries Hydraulic Fluid Line Investigation
• Thompson vs. Standard Oil
• Landels Ripley Diamond Union Oil Tank Investigation
• Field, Richardson et al – Contra Costa Water District PG&E Claims Seaport Center Stainless Steel Pipe Support Cable Failure and Corrosion of Concrete Piles
• Bay View Condominiums Copper Recirculation Hot Water Systems San Luis Water District Cement Mortar Coated Pipe Failure
• Sea Colony Residential Housing Subdivision Reinforced Concrete Slab  Foundation Failure

Carl H. Josephson, PE, SE and Dan R. Werdowatz PE, SE are licensed in 30 states and have over 44 years and 39 years of Structural Engineering experience respectively. They are active and have served in leadership roles in numerous local, state, and national professional structural engineering societies.  They have testified in deposition, trial, and arbitration in over 500 matters throughout the United States and abroad. 

Messrs. Josephson and Werdowatz and their team provide structural assessment and evaluation on a wide variety of matters including construction defects, insurance claims, professional liability claims, standard of care analyses, among others.  Work involves a wide variety of materials and may include vertical, seismic, and wind design and analysis; code review; and construction evaluation.  JW&A is highly experienced in foundations, underpinning, tie-backs, retaining walls, and various geotechnical structures.  JW&A has extensive graphics and animation capabilities in order to make difficult engineering concepts understandable to lay people.  

Litigation Support - JW&A has been retained as structural engineering experts by plaintiff, defense, and cross-defendant clients on over 1,500 matters across the United States and abroad. Designated as experts for homeowner associations, developers, and subcontractor cross-defendants, they strive to provide balanced, well-reasoned and practical solutions to construction litigation problems. They have also been retained as court-appointed neutral experts on several cases.

SE Licenses: CA, AZ, HI, NV, UT, WA, IL, MA, LA, OR
PE Licenses: CO, CT, FL, ID, IN, KS, KY, MD, MI, MO, MS, NM, NY, NJ, ND, OH, SC, TX, WV, WI

Areas of Expertise:

Josephson-Werdowatz & Associates, Inc. Office Locations:

View Josephson Werdowatz & Associates' Consulting Profile.

Stephen George has over 40 years of Landscape Design and Construction Defect experience. Mr. George has owned and operated Landscapes West since 1980, and is still providing design / build and maintenance services to his clients. His projects have included commercial, apartments, condominiums, and residential landscapes. 

Mr. George is a member of the California Landscape Contractors Association (CLCA), the Forensic Expert Witness Association (FEWA), the Irrigation Association (IA), the International Society of Arboriculture (ISA), the National Concrete Masonry Association (NCMA), and the Interlocking Concrete Paver Institute (ICPI).

Litigation Support - Stephen George is an Industry Expert for C-27 Landscape Construction. He provides litigation and consulting services to attorneys representing both Plaintiff and Defendant. His expertise has been called upon throughout the state of California, Washington, Arizona, Nevada, and New York. Mr. George's services include inspection and cost of repair and replacement, review of project drawings, photography / forensic imaging and construction documentation, arboriculture analysis, and landscape construction defects and failures. 

Areas of Expertise:

View Stephen George's Consulting Profile.

As an arbitrator, structural/civil engineer, and expert forensic consultant with nearly four decades of experience, Casey Hemmatyar has provided extensive expert services for defendants’ and plaintiffs’ attorneys on numerous construction litigation matters throughout the United States and Canada.

He has been retained as an expert engineer in over one hundred litigation matters on single and class-action legal cases by the U.S. government, law firms, and insurance carriers at the State and Federal levels, working with both plaintiff and defendant sides.

A partial list of litigation cases is available upon request. His understanding of core engineering and legal concepts has enabled him to assist a wide range of clientele effectively. He brings diversified experience in structural and civil engineering design and forensic engineering, investigation, and evaluation.

He also conducts research, has assisted in the development of building codes and standards, and has supervised the construction of domestic and international projects. His experience includes special structures and new buildings as well as modifications, alterations, seismic/hurricane retrofits, and upgrades to existing structures. He has provided failure analysis, expert consultation, structural forensic investigation, and damage assessment services for numerous litigation and insurance-related matters.

He actively presents continuing education lectures to audiences of licensed engineers, architects, and general contractors on topics of structural and forensic engineering throughout North America. Mr. Hemmatyar has been the principal structural engineer on high-profile projects for prestigious clients, including NASA and other notable organizations.  Currently, he directs PSFEG and has served as Director for SEAOSC from 2011 to 2013.

His work encompasses a diverse range of structures, including hospitals,  educational institutions (including schools and universities), telecommunication centers, aviation facilities, government buildings, laboratories, as well as commercial, industrial, and residential structures.

Mark E. Rieser, II, MS, PE, AIA, GBC, GEC has over 30 years of experience in the Engineering, Architectural, Construction, and Building Design industry. He provides his clients with a comprehensive knowledge of Engineering, Construction Technology and Construction Standards of Professional Practice. 

Background Experience - President of an “active” Design and Building company with a professional staff and Headquarter offices in San Jose and Los Angeles, and offices in Sacramento and San Francisco. Mr. Rieser has managed, designed, and constructed over 4,000 units to include high-rise, single family homes, condominiums, townhomes, podiums, apartments, and commercial buildings, His experience includes building and roadway design, construction, management, with designs of over 500 miles of asphalt and roadway improvements, tunnels, San Francisco Airport, Santa Clara Light Rail, Southern Pacific Railroad, Caltrans, and BART. 

Mr. Rieser has an insightful understanding of Civil / Structural Engineering, Soil Engineering, Transportation, Traffic Engineering, Hydraulic Engineering, Safety Expert, OSHA Standards, Architectural Design, Asphalt Design, Cost Estimation, Public Works Design Bidding and Estimation, General Engineering, General Building, and an Accident Reconstruction expert. “Our bids are not just a tool but are numbers that we be use to finish the work, accurately, on-time, and safely.” 

Forensic Construction and Engineering - Mark Rieser is a renowned forensic expert with the knowledge to safeguard clients from unwanted litigation as well as support both plaintiffs and defendants. He works closely with insurance companies and attorneys on various public, city, and state cases throughout the western United States. To date, he has been designated as an expert in over 550 Forensic Construction and Engineering cases throughout the United States. Mr. Rieser has been designated and testified Court as an expert in the following categories:

View Mark Rieser's Consulting Profile.

Dr. Shakir Shatnawi, PhD, PE, is a nationally and internationally recognized expert in the Transportation Engineering industry. Shakir has a Ph.D. in Transportation Engineering. He has over 30 years of practical and extensive engineering and transportation expertise covering industry and public agencies including FHWA and the California Department of Transportation (Caltrans). 

Shakir is currently the president of Shatec Engineering Consultants. He taught highway engineering, traffic engineering and transportation engineering and pavement design at California State University. Dr. Shatnawi served as a principal investigator on multi-million dollar transportation projects. He held various positions at Caltrans including a Senior Transportation Engineer, a Supervising Transportation Engineer and a Division Chief.

 Dr. Shatnawi's education and experience demonstrates a wealth of engineering knowledge encompassing highway design, traffic engineering, pavement design, geotechnical engineering, materials and construction . As a recipient of many acknowledgements from the government, Dr. Shatnawi has an impeccable reputation within the industry for his significant professional contributions. As an expert orator, he frequently shares his knowledge at major conferences around the world. Dr. Shatnawi provides expert witness services in the following areas:

View Dr. Shatnawi's Consulting Profile.

AVAILABLE NATIONALLY
CERTIFIED RESTORERS * CERTIFIED INDOOR ENVIRONMENTAL CONSULTANTS *
CERTIFIED MICROBIAL REMEDIATION SUPERVISORS * CERTIFIED ENVIRONMENTAL INFECTION CONTROL CONSULTANT * CERTIFIED STRUCTURAL DRYING SUPERVISOR * CERTIFIED INFRARED THERMOGRAPHERS *
IICRC CERTIFIED MASTERS * LIC. GENERAL CONTRACTORS #299472

SUMMARY OF EXPERIENCE

 Brian Spiegel and David Spiegel offer expert testimony and consulting services regarding smoke, water, fire, mold contamination property damage restoration, reconstruction, and construction defect related problems. Both have been speakers nationally and internationally on property damage restoration, construction, and mold contamination related topics. In the past at the Property Loss Research Bureau (PLRB) national mold symposium in Charlotte, North Carolina and at the Forensics Consultants Association on toxic mold litigation and mold remediation in Newport Beach, California. In the media, Brian and David have written articles for industry trade magazines and given television and radio interviews, including one with Brian on ABC TV “Good Morning America” featuring a segment on mitigating water damage. 

CONSULTANTS AND EXPERT WITNESS

EXPERT SERVICES

PROPERTY DAMAGE ASSESSORS

• Residential and Commercial
• Appraisal Process: Appraisers & Umpires
• Contents and Structure

Litigation Support - Mr. Stein Offers consulting and expert services for attorneys on issues regarding road, street, highway, temporary traffic control, runway, and earthwork; asphalt, concrete, coatings and other construction materials; designs, plans, specifications, CPM scheduling (Primavera) and contract documents; right-of-way issues; and work zone safety. Licensed in Louisiana, Pennsylvania, and Texas, he performs contract performance forensic investigations and provides consulting, expert reports, rebuttals, and testimony if required.

Areas of Expertise:

Certifications:

• Certified Construction Manager (CCM)
• Certified Primavera Basic (CPM)
• Certified Primavera Advanced (CPM)
• Certified LADOTD Structural (bridge)
• Inspector/Technician Certified Troxler
• Humboldt Nuclear Moisture/ Density Operator
• Lead Abatement
• Certified Quality Compliance Surveillance in Fossil Power Plants, Organic & Inorganic Coatings Application and Inspection
• Certified Traffic Control Supervisor
• Certified Flagger Instructor