Minnesota Department of Transportation

511 Travel Info

Road Research

NRRA Preventive Maintenance Team

Orange barrels on a highway

Preventive Maintenance Team Members

Agency members

Max Barry, Illinois Tollway

Ashley Buss, Iowa DOT
Paul Denkler, Missouri DOT
Reimond Garcia, Caltrans – California DOT
Mark Gawedzinski, Illinois DOT
Jerry Geib, Minnesota DOT
Robert Green, Michigan DOT
Tyler Hunt, Michigan DOT
Myungook Kang, Wisconsin DOT
Pete Kemp, Wisconsin DOT
Jeffery Kroner, Missouri DOT
Leo Mahserelli, Caltrans – California DOT
Alex Middleton, Mississippi DOT
Jesse Nelson, North Dakota DOT
Heath Patterson, Mississippi DOT
Phil Ruffus, Missouri DOT
Phillip Schmalz, Minnesota Local Road Research Board - Meeker County
John Senger, Illinois DOT
Joel Ulring (Chair), Minnesota DOT
Stephanie Weigel, North Dakota DOT
Tom Wilson, Illinois Tollway

Associate members

Başak Bektaş, Minnesota State University - Mankato
Robert Betsold, All States Material Group
Rod Birdsall, All States Material Group
Andrea Blanchette, Terracon
Brandon Brever, Minnesota Asphalt Pavement Association (MAPA)
Douglas Carlson, Liberty Tire Recycling
Andy Cascione, Flint Hills Resources, LP
Eshan Dave, University of New Hampshire
Jolee Dominowski, Dow Chemical
Sattar Dorafshan, University of North Dakota
Colin Durante, Pavement Technologies, Inc
Tyler Eckenrode, Flint Hills Resources
Michael Freisthler, Bio-Based Spray Systems
Andrew Hanz, Mathy Construction
Dale Heglund, North Dakota State University
Ken Holton, Pavement Technologies, Inc
Sheue Lee, Terracon
Buzz Powell, National Center for Asphalt Technology (NCAT)
Farhad Reza, Minnesota State University - Mankato
Timo Saarenketo, Roadscanners, USA
Dan Swiertz, Asphalt Materials, Inc.
Greg Vavra, South Dakota State's Local Transportation Program
Feng Wang, Texas State University
Dan Wegman, Braun Intertec

Friends and support staff

Emil Bautista, Minnesota DOT
Amy Beise, North Dakota DOT
Jason Blomberg, Missouri DOT
Melissa Cole, Minnesota DOT
Andre Clover, Michigan DOT
Bryon Fuchs, North Dakota DOT
Eddie Johnson, Minnesota DOT
Kevin Kennedy, Michigan DOT
Kevin Kliethermes, FHWA
Clark Moe, Minnesota DOT
Aaron Perez, North Dakota DOT
Joseph Podolsky, Minnesota DOT
Danniel Rodriguez, University of Texas-El Paso (UTEP)
John Senger, Illinois DOT
Michael Vrtis, Minnesota DOT
Ben Worel, Minnesota DOT
Tom Zimmerman, Minnesota DOT