The purpose of this training is to highlight common roadway drainage problems that can cause an unsafe condition and suggest inspection methods and corrective action. Maintaining roadway drainage is important for safety and for ensuring the long life of the roadway by preventing erosion of the roadway, saturation of the subbase, and damage to roadway structures. The training is broken into two modules:
Module 1: Effects of Drainage describes common roadway safety hazards and how to recognize drainage problems.
Module 2: Safe Drainage Features and Work Zones covers solutions to common roadway safety issues and work zone safety.
This training is not intended to be a design guide. Participants may want to contact their State Local Technical Assistance Program (LTAP) for more details on drainage design.
This training is intended to help local road agency maintenance workers understand the importance of maintaining and upgrading drainage features on their road system to avoid an unsafe condition.
If you have questions about this NHI training, please contact NHI at
firstname.lastname@example.org or 877.558.6873.