This 90-minute webinar, held June 23, 2021, focused on proactively reducing or eliminating maintenance costs on longitudinal joints, which often show premature distress due to lower density obtained during construction.

The webinar covered multiple ways to achieve better density, lower voids, and optimal performance at longitudinal joints to eliminate premature failure. Presentations reviewed optimal construction techniques, void reducing asphalt membrane, and warm-mix additives.

Webinar Recording

Who Should Attend

Engineers, managers, supervisors, and technicians responsible for pavement maintenance, design, and construction.


John Garrity has worked at MnDOT for the last 32 years, spending most of that time in the Bituminous Office. He is a graduate of North Dakota State University and a registered engineer in Minnesota.

Craig Reynolds has worked at Ingevity for seven years. Prior to joining Ingevity, he worked for Vulcan Materials for 18 years and has been involved with the asphalt industry since college. As a technical marketing manager, he markets specialty chemicals to the asphalt industry in the following states: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin.

Dave Stanczak is a specialty products area manager for Asphalt Materials, Inc. His territory includes Minnesota, Wisconsin, and northern Illinois. He has been selling materials in the asphalt industry since 2005. He has a Bachelor of Science degree in commerce and Master of Business Administration from DePaul University.

Dan Wegman, PE, has worked with DOTs and local governments in several states with pavement rehabilitation and preventive maintenance strategies. As a former MnDOT construction and bituminous engineer and with over fifteen years working as a private-sector material supplier and pavement consultant, Wegman provides technical insight with respect to materials, construction, and implementation.


To the best of our knowledge, this course/activity meets the continuing education requirements for 1.5 Professional Development Hours (PDHs) as outlined in Minnesota Statute 326.107.


This webinar 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.