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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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50 years of experience
3,000+
PSP participants
22,000+
samples shipped per year
1,000
laboratory assessments per year
1,800+
accredited labs





FWD Calibration Centers with AASHTO-Certified Operators

To view the contact information for a calibration center, click on the red dot.

Certified FWD Calibration Center Operators

The following FWD calibration center 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.

Operator Name Center Name Center Location Expiration Date View Certificate
Mark Hannum California Department of Transportation Davis, California October 31, 2017 PDF
Mark Troxler California Department of Transportation Davis, California October 31, 2017 PDF
Paul Smith Colorado Department of Transportation Denver, Colorado August 23, 2017 PDF
Adrian Tello Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Steven G. Vani Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Drew Fausnacht Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Harry White Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Fernando Veas Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Marcelo Veas Dynatest North America, Inc. Alpharetta, Georgia July 25, 2017 PDF
Jibreel Rana ERES International, Inc. Savoy, Illinois June 19, 2017 PDF
Tim Worstell ERES International, Inc. Savoy, Illinois June 19, 2017 PDF
Mauricio Valencia Bandera Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México January 2, 2018 PDF
José Luis Navarro Barajas Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México January 2, 2018 PDF
Gustavo Palomino Rodríguez Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México January 2, 2018 PDF
Miguel A. Saumett Evaluación Integral de Obras Civiles, S.A. de C.V Purísima de Bustos, Gto., México January 2, 2018 PDF
Adrian Elizondo Foundation Mechanics, Inc. El Segundo, California April 29, 2017 PDF
Gary Sanati Foundation Mechanics, Inc. El Segundo, California April 29, 2017 PDF
Peter N. Schmalzer Half-Space Engineering, Inc. Davis, California November 1, 2017 PDF
Hobert Deaton Indiana Department of Transportation West Lafayette, Indiana December 12, 2017 PDF
James Haygood Indiana Department of Transportation West Lafayette, Indiana December 13, 2017 PDF
Maurice Hendryx Indiana Department of Transportation West Lafayette, Indiana December 12, 2017 PDF
Brandon Patterson Indiana Department of Transportation West Lafayette, Indiana December 12, 2017 PDF
Greg Larson Minnesota Department of Transportation Maplewood, Minnesota February 13, 2018 PDF
Michael Miezwa Minnesota Department of Transportation Maplewood, Minnesota February 13, 2018 PDF
John Amestoy Montana Department of Transportation Helena, Montana February 15, 2018 PDF
Milo Borglum Montana Department of Transportation Helena, Montana February 15, 2018 PDF
Steve Nixon Pennsylvania Department of Transportation Harrisburg, Pennsylvania September 29, 2017 PDF
Michael Henriksen SWECO Danmark, A/S Kolding, Denmark July 31, 2017 PDF
Karsten Voss SWECO Danmark, A/S Kolding, Denmark July 31, 2017 PDF
David Newberry Tetra Tech EBA Inc. Edmonton, Alberta, Canada April 10, 2017 PDF
John Ragsdale Texas Department of Transportation College Station, Texas August 2, 2017 PDF

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