ARROYO SECO

Los Angeles

Pasadena

Glendale

Alhambra

South Pasadena

UnincorporatedLa Canada Flintridge ±

LegendOvertopping AreasArroyo Seco ChannelArroyo Seco Watershed

Dev il's Gate Dam

FLOOD RISK ALONG THE ARROYO SECOUntil sediment remov al at Dev il's Gate Dam takes place, there continues to be an increased risk of flooding to communities along the Arroy o Seco during sev ere storm ev ents.• Potential flooding of 650 parcels• 447 parcels with structures in Pasadena, South Pasadena, and Los Angeles• Req uires 110 freeway closureTo protect local communities, a Flood Hazard Warning Plan is in place to notify emergency response agencies in the ev ent of flooding along the Arroy o Seco Channel.