Bob Scheller is an Associate Principal with WDP & Associates.

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Robert F. Scheller

Robert F. Scheller P.E., Associate Principal
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As Director of numerous WDP geotechnical engineering contracts and WDP’s Construction Testing & Inspection Services, Bob’s expertise in technician certification and laboratory accreditation stems from 25 years of experience and extensive engagement in industry organizations, such as ASTM and WACEL. 

“In Northern Virginia, it is not uncommon to have 8 to 10 different soil types on one site.  And some soil conditions can affect the cost of earthwork and foundations by as much as 200%.  That’s a big number that I strive to mitigate by working with the civil engineer on the building layout and the structural engineer on the foundation system.  In regard to inspections and testing, it’s a point of pride for me, knowing that I helped deliver a lasting building.  The construction industry is under constant pressure to build faster and cheaper, which keeps me and my inspectors on our toes.  Nothing gives me more satisfaction than a client reference saying that they experienced real value for our service.” 

Years with WDP

Bob joined WDP & Associates in 1997, following eight years of prior professional experience.


  • Bachelor of Science, Civil Engineering, Virginia Tech, Blacksburg, Virginia, 1989


  • Professional Engineer – VA, MD, DC, TX

Industry Engagements

  • ASTM International (formerly known as American Society for Testing and Materials)
  • Committee C-9 “Concrete and Aggregates”
    • Subcommittee C09.98 – Evaluation of Laboratories, Chairperson
    • Subcommittee C09.60 – Testing Fresh Concrete
    • Subcommittee C09.61 – Testing for Strength
  • Committee D-18 “Soil and Rock”
    • Subcommittee D18.99 – Quality Control
  • Committee E-36 “Accreditation and Certification”
  • Subcommittee E36.70 - “Agencies Performing Construction Inspection, Testing and Special Inspections”
  • American Society of Civil Engineers (ASCE)
  • Washington Area Council of Engineering Laboratories (WACEL)
    • Secretary, 2005 – 2009 and 2011 – present
    • Past President, 2002-2003 and 2009-2010
  • Fairfax County Engineering Standards Review Committee
  • Fairfax County Geotechnical Review Board – 2014 - present

Technical Papers/Publications & Speaking Engagements

Bob has written an authoritative published article on Special Inspections and is frequently invited to speak on that topic. Mr. Scheller conducts WDP’s AIA-accredited presentation on Special Inspections – What Does it Mean and When is it Required?

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