The Novato Creek Watershed, located at the northwestern extent of San Pablo Bay, is the largest watershed in eastern Marin County. Its creeks flow eastward through oak and bay forests, grasslands, unincorporated Marin County and the City of Novato, and into San Pablo Bay near the mouth of the Petaluma River. The basin is 45 square miles and the main drainage in the watershed is Novato Creek. Novato Creek is joined by six major tributaries along its 17 mile length: Leveroni, Bowman Canyon, and Warner Creeks, Arroyo Avichi, Arroyo de San Jose, and Simmonds Slough.
Learn more about the history and land use of the Novato Creek Watershed.
The 2017 summer work program includes trimming vegetation and removing debris from watershed creeks and tributaries.
Winter Weather Outlook
The National Weather Service's Climate Prediction Center anticipates that there will be a strong El Niño this upcoming winter and their latest precipitation outlook for December through March indicates that Marin is likely to receive higher than average amounts of
Zone Engineer: Joanna Dixon
Phone: (415) 473-7031
Maintenance: Bene Da Silva
Phone: (415) 473-6538
Engineering projects: Roger Leventhal
Phone: (415) 473-3249
Zone 1 was formed in 1955 to address flooding issues in downtown Novato and surrounding areas and is overseen by a 5-member Advisory Board.
Zone 1 is the largest zone, by area, in Marin and covers over 45 square miles. It includes the City of Novato and portions of unincorporated County in Indian Valley, Bel Marin Keys, Green Point, Black Point, Loma Verde, and western Novato. There are 21,580 parcels within the Zone.
The boundaries of the Zone and the Novato Creek Watershed closely align. Novato Creek is a substantial perennial stream that extends approximately 17 miles from San Pablo Bay to its headwaters at Stafford Lake, and about another 6 miles upstream of the Lake. Tributaries including Bowman Creek, Simmons Creek, Warner Creek and Arroyo Avichi, drain the subwatersheds.
The Zone work program includes regular servicing of 8 pumps at 4 pump stations, maintenance of 9 miles of flood protection levees, maintenance of tidegates and trash racks, and an annual vegetation maintenance program along 15 miles of creeks. In addition, Zone 1 periodically removes accumulated sediment from lower Novato Creek, Warner Creek and Arroyo Avichi to improve flow conveyance.