City of Santa Rosa - Compromised Underground Storm Drain Infrastructure

 Map of Damaged Storm Drain Infrastructure
View map of current underground damaged storm drain infrastructure here:  https://goo.gl/ic5zXq (6MB, map updated: 9am 11/14/17)

Burned Storm Drain Pipes Discovered in Fountaingrove
After the wildfires, an immediate assessment of storm drainage infrastructure was launched throughout Sonoma County. During the assessment, the City of Santa Rosa has identified some sections of underground storm drain pipes that were destroyed by the fire in the Fountaingrove area. In these areas the underground storm drain systems were constructed with High-Density Polyethylene (HDPE) pipes – a type of plastic. During the wildfires, sections of the plastic pipes caught fire and were destroyed. The locations vary and in some instances up to a few hundred feet of the storm drain infrastructure was destroyed or melted. This has resulted in underground voids and cavities that could cause sink holes, landslides and/or flooding concerns. With rain in the forecast, the risk of these events is elevated and the City of Santa Rosa and County of Sonoma are encouraging residents to stay alert for landslides, sinkholes, and other rain-related issues, particularly in the fire impact areas. If you see evidence of flooding, mud and debris flows, or sinkholes in your area, call 911.