This CTAP workshop gives participants general knowledge on the use of culverts, different materials and their applications, and how to install and maintain them. It emphasizes frequent inspection and periodic maintenance to ensure that the culvert is working properly. The workshop also describes best practices for culvert installation and maintenance being used by other agencies in Minnesota.

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


Arranged, approximately 4 hours

Topics Covered

  • Minnesota soils and how they affect the life of galvanized steel culverts
  • The difference between spiral seam and riveted metal culverts
  • Alternative metal culvert coatings
  • The importance of compaction during culvert installation
  • Culvert inspection
  • Relining culverts, materials, and techniques

An exercise on shooting grade with an eye level will be conducted if time permits. Workshop participants will learn how to read a grade rod, determine a rod reading, and use a level.

Who Should Attend

Street or road superintendents, supervisors, and maintenance workers responsible for culvert installation or maintenance.



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.