Storm Drain Master Plan Update

A key ongoing project within the Capital Improvement Program is town-wide storm drain maintenance. To better manage more than 128 miles of storm drains, the Town initiated a Storm Drain Master Plan to assess the condition of the system and identify potential maintenance projects.

During the unprecedented storms on New Year’s Eve and the weeks following, ongoing maintenance and improvements proved to mitigate potential further widespread damage. While some homes and areas experienced flooding, having detailed maps and maintenance history of the Town-managed drainage system allowed Town engineers to work with private property owners to identify causes of flooding and work in partnership to address the issues.

The Storm Drain Master Plan includes GIS mapping of storm drain infrastructure, identification of repair and replacement priorities, and annual maintenance recommendations. The recent storms caused a reprioritization of some projects, including the recent replacement of a major drainage culvert under Diablo Road near Alameda Diablo. The Storm Drain Master Plan draft report will be presented to the Town Council during a study session on April 11. To view the staff report, visit www.danville.ca.gov/agendas for the study session documents.