Calibration that ensures data is accurate and repeatable

"We recognize they’re very effective at what they do and they pretty much lead the pack in that regard, so that’s why we lean on them."


California Division of the State Architect

Eric France, Construction Supervisor II

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60+ years of experience
3,000+
PSP participants
23,000+
samples shipped per year
1,000
laboratory assessments per year
2,100+
accredited labs


Certified FWD Calibration Operators

The following FWD calibration operators have been certified by AASHTO for proficiency in calibration of falling weight deflectometers in accordance with AASHTO R32. Please note that the calibration center name and location listed for each operator indicates the site where the audit was conducted. Certification is issued for individual operators and is not site specific, however, adequate facilities and calibration equipment are an important component of performing a successful FWD calibration.

View the list of Certified FWD Calibration Centers

Operator Name Center Name Center Location Expiration Date View Certificate
Camilo Olmedo APSA Ltda. Chile Santiago, Chile November 30, 2026 PDF
Yamil Amad APSA Ltda. Chile Santiago, Chile November 30, 2026 PDF
Paul Smith Colorado Department of Transportation Denver, Colorado January 31, 2028 PDF
Johan Galindo Dynatest Colombia Bogota, Colombia August 31, 2027 PDF
Juan Garcia Dynatest Colombia Bogota, Colombia August 31, 2027 PDF
Adam Ashley Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
David Shafer Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Jacob McDonald Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Jake Millet Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Michael South Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Richard Smith Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Travis Ashley Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Albert Navarro Comes Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Shadi Baloushi Dynatest US, Inc Gainesville, Florida January 31, 2027 PDF
Josh Black ERES International, Inc. Savoy, Illinois August 31, 2026 PDF
Shams Arafat ERES International, Inc. Savoy, Illinois August 31, 2026 PDF
Tim Worstell ERES International, Inc. Savoy, Illinois August 31, 2026 PDF
José Luis Navarro Barajas Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México September 30, 2026 PDF
Agustin Hurtado Gomez Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México September 30, 2026 PDF
Miguel Saumett GeoSense SAS Bogota, Colombia August 31, 2027 PDF
Adrian Elizondo GeoSense SAS Bogota, Colombia April 30, 2028 PDF
Jonathan Franco GeoSense SAS Bogota, Colombia August 31, 2027 PDF
Brian Bell Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Charles Martin Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Connor Kirts Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Hobert Deaton Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
John Childers Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Maurice Hendryx Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Mike Sanders Indiana Department of Transportation West Lafayette, Indiana November 30, 2027 PDF
Doug Lumley Indiana Department of Transportation West Lafayette, Indiana March 31, 2028 PDF
Andrey Ferreria Infraconsult Consultoria De Engenharia LTDA Sao Paolo, Brazil April 30, 2026 PDF
Keishi Horiguchi Infraconsult Consultoria De Engenharia LTDA Sao Paolo, Brazil April 30, 2026 PDF
Ruy Junior Infraconsult Consultoria De Engenharia LTDA Sao Paolo, Brazil April 30, 2026 PDF
Greg Larson Minnesota Department of Transportation Maplewood, Minnesota October 31, 2026 PDF
Bill Hancock Montana Department of Transportation Helena, Montana December 12, 2025 PDF
Chris Lang Montana Department of Transportation Helena, Montana December 12, 2025 PDF
Kristofer Coker Pennsylvania Department of Transportation Harrisburg, Pennsylvania February 10, 2027 PDF
Steve Nixon Pennsylvania Department of Transportation Harrisburg, Pennsylvania March 31, 2028 PDF
Ted Haug Pennsylvania Department of Transportation Harrisburg, Pennsylvania March 31, 2028 PDF
Yugen Moodley QESH Advisory Services Westmead Kwazulu Natal, South Africa August 31, 2026 PDF
Daniel Felipe Vale Roadrunner Engenharia Ltda Jacare, Brazil April 30, 2028 PDF
Felipe Camargo Roadrunner Engenharia Ltda Jacare, Brazil April 30, 2028 PDF
Luciano Aparecido de Moura Roadrunner Engenharia Ltda Jacare, Brazil April 30, 2028 PDF
Rene Clemen SWECO Danmark, A/S Kolding, Denmark June 30, 2027 PDF
David Newberry Tetra Tech Canada, Inc. Edmonton, Alberta, Canada April 30, 2027 PDF
Doug Bradley Tetra Tech Canada, Inc. Edmonton, Alberta, Canada April 30, 2027 PDF
Kalin Stoyanov Tetra Tech Canada, Inc. Edmonton, Alberta, Canada April 30, 2027 PDF
Ronak Malhi Tetra Tech Canada, Inc. Edmonton, Alberta, Canada April 30, 2027 PDF
John Ragsdale Texas Department of Transportation College Station, Texas July 31, 2027 PDF
Laslo Tot TMR Ltd. Cambridge, Ontario, Canada October 31, 2026 PDF
Brielle Moreno University of California Pavement Research Center Davis, California October 31, 2027 PDF
Melanie Preciado University of California Pavement Research Center Davis, California October 31, 2027 PDF
Marcelo Veas VVPave Lima, Peru December 31, 2027 PDF
Rodrigo Pena VVPave Lima, Peru December 31, 2027 PDF


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