The mission of Subcommittee #4 - Highway Drainage Products is to develop, publish and update guidelines for currently used and accepted products intended to collect, convey and treat storm water runoff. The primary resultant of this subcommittee is "A Guide to Standardized Highway Drainage Products," 1999. The intended goal of this publication is to provide the end user a tool to design surface and subsurface highway drainage systems. The subcommittee will stay current of new market developments and convey the information through the publication.

This subcommittee has been discontinued.