Image of salt being dispersed on winter road

Photo: David Gonzalez, MnDOT

This workshop is designed to help local and state agency snowplow operators calibrate their snowplow salt and sander controllers. Discussion will focus on the importance of applying the correct amount of salt, sand, or other solid materials when treating roads during winter maintenance.

This workshop is focused on the calibration of 5100 and 6100 Force America controllers. Attendees will receive hands-on calibration instruction. An easy-to-use calibration guide with step-by-step instructions for operating both automatic and manual controllers will be provided to every participant.

Date & Location

This class is available on-demand at your location. To schedule a session, contact Kathleen Schaefer, CTAP instructor, at 651-366-3575 or

Course Instructor

Kathleen Schaefer became the CTAP instructor in 2001 and conducts road maintenance workshops throughout Minnesota. She has worked for the Minnesota Department of Transportation since 1997.


Informational Contact

Kathleen Schaefer, CTAP Instructor, Minnesota Department of Transportation, 651-366-3575


This workshop is presented by the Minnesota Local Technical Assistance Program (LTAP) at the Center for Transportation Studies, University of Minnesota. Minnesota LTAP is sponsored by the Minnesota Local Road Research Board (LRRB) and the Federal Highway Administration (FHWA). This course is subsidized through funding from LRRB and FHWA.