UCPRC operates an FWD Calibration Center certified by AASHTO Re:Source.
To view UCPRC’s current certification status, please visit
Certified FWD Calibration Center Operators.
FWD load cells and deflection sensors are calibrated following AASHTO R32-20.
To schedule a calibration visit, please:
-
Fill out the Pre-Calibration Checklist and UC Davis Campus Waiver form (see links below).
- Send the signed PDFs via email to Julian Brotschi at
jcbrotschi@ucdavis.edu.
UCPRC will reply to your email within 2 business days.
If you have any questions about the forms or the calibration process in general,
please contact Julian Brotschi at the above email address.
In addition to the information listed in the pre-calibration checklist,
please verify the FWD machine’s sensor's absolute and relative gains from the
previous calibration are correct and accurate, especially if a new deflection
sensor or load cell has been installed in the FWD since the machine’s previous
calibration.
Important Links
Day of Calibration Instructions
Arrive at the ATIRC facilities by 8am.
Upon arrival, FWD Operators must check in with the FWD Calibration Technician Julian Brotschi,
who will be stationed inside the FWD Calibration Center.
Contact him at (530)-220-4024 (email: jcbrotschi@ucdavis.edu).
Please bring a check in the amount of $750. Make the check payable to:
The Regents of the University of California (or UC Davis)
Credit Cards are not accepted for payment.
The $750 covers the cost for one FWD machine in an 8-hour calibration period.
If any additional time is required (a second day of calibration), there will be an additional $750 charge.
The FWD Operator will receive a paper receipt of payment.
After the initial check-in, FWD Operators are permitted to use the Outer Test Track to warmup their machine.
After warmup, FWD Operators return to the FWD Center to begin the calibration procedure.
In the event the FWD equipment fails to pass calibration after two attempts by the UCPRC Calibration Technician,
the FWD Operator agrees to forfeit all additional calibration attempts during the same calibration day.
The FWD Operator must reschedule a future date to calibrate the machine and pay an additional $750 charge.
UCPRC are not responsible for training, servicing, maintenance, or bringing FWD equipment into compliance.
FWD operators must be familiar with their equipment and have all spare parts required to
perform any maintenance or repairs while onsite at the UCPRC facility. This includes,
but is not limited to tools, battery chargers, extension cords, and any other machine-specific
equipment required to calibrate the FWD deflection sensors or load cell by AASHTO R32-20.
Directions
The address of the facility is 3327 Apiary Drive, Davis, CA 95616.
Enter through the main gate of the facility (as specified in email communication). Note: the facility
can be reached without travelling on any farm roads (Google maps has given erroneous directions in the past).
The image below shows the layout of the facility.
