Who do I contact if I have flooding on my street?

During normal work hours, call Public Works Maintenance Division at (925) 313-7000 or email Public Works Maintenance.  Visit the Public Works Request Services webpage for information to report from your mobile device or online.

If it is an emergency after hours, on the weekend or during a holiday call the Sheriff's dispatch at (925) 646-2441.

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1. What is the County's responsibility in maintaining private drainage systems?
2. Who do I contact if I have flooding on my street?
3. Why doesn't the County maintain the culvert / ditch behind my house?