Flood Protection

Zone 7 proactively manages a 37-mile network of streams and flood channels that protect the Tri-Valley community should storms strike..

This is achieved with a combination of carefully engineered stream management practices and community outreach to engage residents in the care of our watershed.

With the ongoing implementation of our Flood Protection Program, we are developing a more integrated approach to channel stormwater more effectively. The long term vision replaces the largely engineered arroyo system with a porous Chain of Lakes allowing us to detain stormwater for other beneficial uses along with other conceptual projects to continuously improve our level of preparedness and resiliency.

Zone 7’s vegetation season starts on May 1^st. This means that Zone 7 will begin with mowing and tree trimming at all Zone 7 facilities in Dublin, Livermore, and Pleasanton. Typically mowing will be completed for all three cities in June.