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The original item was published from 1/1/2023 1:54:00 PM to 1/1/2023 6:05:56 PM.

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Posted on: December 31, 2022

[ARCHIVED] Road Closures due to Flooding-Updated

Contra Costa County Public Works Road Closure Information

(Updated) January 1, 2023, Contra Costa County, CA - Contra Costa County Public Works has responded to close several roads due to flooding, mudslides and other issues. Below is the current status of roads in unincorporated Contra Costa County:

  • Marsh Creek Road is closed between the Round Valley Regional Preserve (19450 Marsh Creek Road, Brentwood) & Morgan Territory Road due to continued rock and mudslides. Only residents are allowed in the area. Please take alternate routes to avoid this area.
  • Happy Valley Road is closed between Bear Creek Road & the Lafayette City Limit due to a tree that has fallen across the road. Please avoid the area.

Drive safely. Never attempt to cross flooded roads-driving, riding or walking. If the power is out, treat ALL traffic signals like stop signs. YOUR safety is OUR priority!

Contra Costa County Sandbag Locations  - County Public Works Maintenance crews are assessing all County sandbag stations and will replenish sand and sandbags in anticipation of future storm events. Sand & sandbags are free, please bring a shovel.


About Contra Costa County Public Works Department:

Contra Costa County Public Works Department (CCCPWD) maintains over 660 miles of roads, 150 miles of streams, channels and other drainage and over 150 County buildings throughout Contra Costa County. CCCPWD provides services such as Parks and Recreation, Sandbag Distribution and Flood Control throughout unincorporated areas of Contra Costa County. For more information about CCCPWD, please visit us at 


Contact: Kelly Kalfsbeek 925.313.2115


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