Principal Investigator
- Jeff Marr, Associate Director, SAFHL - Hydraulic Lab
Summary
Culvert pipe material selection has traditionally been a relatively simple task involving metal or concrete pipe. In
recent years, the addition of coated metal and plastic pipe has led the federal government to implement a rule
requiring the consideration of alternative pipe materials. The current MnDOT Drainage Manual provides limited
guidance on the selection of pipe material. The manual is lacking detailed information on the influence of
environmental conditions on pipe durability in Minnesota. It is necessary to provide updated, accurate information
on pipe material and durability for factors directly related to Minnesota.
To reach this goal, the availability and suitability of existing data, as well as the practices associated with
predicting pipe life spans must be evaluated. This report is the result of the initial feasibility study for a larger
project(s) to update the MnDOT Drainage Manual. The goal for this report is to identify knowledge gaps, produce
a research plan that will guide future research, and draw any pipe materials conclusions possible using the data
available.