County of Los Angeles Storm Drain System
Track: Water, Wastewater, and Stormwater
Authors: Jeff Wingate, Marianne Jeffers
Prior to the Storm Drain System (SDS), Los Angeles County Public Works (LACDPW) had partial GIS drainage data that only included names of facilities. Recently LACDPW completed the mapping of drainage infrastructure they maintain. The SDS includes 3,852 miles of drains and 78,000 catch basins. It is saving field maintenance yards time in their research and planning, and it provides critical information for complying with water quality regulations.