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This workshop will provide attendees with an overview of current best practices for seal-coat operations in Minnesota, including how to design and implement a seal-coat operation. It will also review micro/slurry, including what micro/slurry surfacing is, the differences between the two products, and how and where to use each one. Project selection, development of specifications, and construction details will also be discussed in detail. Following the workshop, attendees will have gained the basic knowledge to properly select a candidate project and build it.

Date and Location

This workshop is scheduled from 8:30 a.m. to 3:30 p.m. (registration begins at 8 a.m.) at the specified location on each of the dates listed below.

  • March 25, 2020—MnDOT District 7 Office, 2151 Bassett Drive, Mankato, MN 56001
  • April 1, 2020—Hennepin County Public Works Facility, 1600 Prairie Drive, Medina, MN 55340
  • April 9, 2020—Alexandria Technical and Community College, 1601 Jefferson Street, Alexandria, MN 56308


Topics Covered

  • The updated chip-seal handbook
  • What a chip seal is and why we design chip seals
  • Aggregates: more than just stone
  • Binder: it sticks to your road
  • Construction methods: more than just driving the equipment
  • Fog sealing: not just a shot in the dark
  • Overview of microsurfacing/slurry and how to use them
  • Why specifications are important
  • Calibration
  • Construction details
  • Other uses

Who Should Attend

County or city engineers or their technical staff who have responsibility for designing and/or managing seal-coat operations or micro/slurry surfacing.

Course Instructor

Thomas Wood has worked in road construction/maintenance for more than 40 years. He has a mix of public and private service experience. For the last 21 years, he has worked on pavement preservation treatments specializing in emulsion base methods. He also teaches classes for Minnesota LTAP and the National Center for Pavement Preservation. Wood retired from MnDOT in July 2016 with over 28 years of service. He currently works for WSB & Associates, continuing to promote the use of pavement preservation as a method to extend pavement useful life.



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.