Trashrack 2 : A metal bar or grate located at the outlet structure of a detention or retention basin which is designed to prevent blockage of the structure by debris
The Flood Control District of Maricopa County, Glossary of Flooding Terms, AZ, USA 2009. http://www.fcd.maricopa.gov/Education/glossary.asp x, (ND/ Flood - Amer) {477}