Conditions of extreme peril to the safety of persons and property have arisen within the County, caused by a series of severe rainstorms that began in January 2017 and have continued into February, and have led to widespread flooding, mudslides, sinkholes and damage to public buildings, flood control facilities and roadways, including the collapse of a portion of Alhambra Valley Road at Pinole Creek, caused by a massive sinkhole.
These conditions are or are likely to be beyond the control of the services, personnel, equipment and facilities of the County. The initial damage estimate encompasses the County’s response and cleanup of various sites throughout the county and estimated costs to repair damages from the storm. The estimate includes road infrastructure, flood control infrastructure, public building facilities and park and recreation facilities. The majority of the damage occurred on or along rural county roads. The largest and most significant damage occurred on Alhambra Valley Road at Pinole Creek, where there was a washout of the road. Flood control infrastructure also experienced storm related damage. Public building and park facilities suffered minimal impact from the storm.
The January storm damage estimates for the cities in Contra Costa County totaled $4.3 million for a total damage estimate of $13.8 million. The effects of the storms continue to be dynamic. Since the Board's action declaring an emergency on January 19, the Public Works Department crews have been responding to isolated mudslides, localized flooding, downed trees and drainage issues throughout the county, along with intermittent road closures including Marsh Creek Road, Morgan Territory Road, and a partial closure at Alhambra Valley Road at Ferndale Road. There have additionally been isolated issues related to County buildings/facilities including 50 Douglas Drive, 12000 Marsh Creek Rd (Detention Facility) and the County Hospital. Public Works crews continue to respond to items as they are reported.
The attached proclamation of a local emergency is necessary to capture additional damages that have arisen from the continuation of rainstorms through February 2017.