NewsSFGate Bay Area NewsOctober 30, 2026San Francisco County
Marin County prepares emergency flood protections for deteriorating San Rafael levee amid king tides
Photo: SFGate Bay Area News
King tides and coastal flooding have triggered a coastal advisory across Northern California while Marin County officials rush to reinforce a deteriorating 2-mile timber-reinforced levee protecting 700 homes in San Rafael. Water seeping through the berm has prompted the Marin County Flood Control District to prepare emergency measures, including steel sheet piles, protective sheeting, sandbags, and water-filled barriers.
Read the full story at SFGate Bay Area NewsWhy It Matters
Residents in 700 homes in the Santa Venetia neighborhood face a direct risk of property inundation from up to 1.9 feet of flooding as coincide with El Niño-driven sea-level rise and sinking landfill ground.
Key Facts
- A 2-mile timber-reinforced levee protecting 700 homes in San Rafael's Santa Venetia neighborhood is experiencing water seepage through and beneath portions of the berm.
- The National Weather Service has extended a coastal advisory for Northern California until Sunday at 6 p.m. due to king tides and coastal flooding.
- King tides can inundate low-lying areas near shorelines with up to 1.9 feet of flooding.
- Even higher king tides are anticipated around Thanksgiving and Christmas, leaving a limited window to strengthen vulnerable areas.
- The Marin County Flood Control District is preparing emergency measures including steel sheet piles, protective sheeting, sandbags, and water-filled barriers.
- County officials are asking creekside homeowners to allow emergency crews property access for flood repair work and to consider donating easements for infrastructure projects.
- A major storm in January caused $2.6 million worth of damage to the levee.
- The San Rafael City Council declared a state of emergency on Oct. 5 over expected El Niño impacts.
- In September, the Marin County Flood Control District submitted an environmental review for a proposed Santa Venetia floodwall upgrade to replace the current levee system.
- Flooding earlier in the week stranded a driver on flooded roadways in Mill Valley.
- Current seasonal conditions include an El Niño event increasing seawater volume, exacerbated by Kelvin waves and sinking landfill ground.
Who's Mentioned
locationSan Francisco Bay“Body of water receiving outflow from Gallinas Creek.”OrganizationMarin County Flood Control District“Preparing emergency flood measures and submitting environmental reviews for a fl”OrganizationSFGATE“Media organization receiving email statements and publishing reports.”PersonQuinn Gardner“Deputy director of emergency management discussing adjusted shoreline risks.”locationMarin County“Local government managing flood response and levee protection.”locationGallinas Creek“Creek bordering the Santa Venetia neighborhood near San Francisco Bay.”PersonMary Sackett“Marin County Supervisor discussing levee seepage and upcoming king tides.”locationSan Rafael“City where the vulnerable Santa Venetia neighborhood and levee are located.”OrganizationKPIX-TV“Television station that interviewed Quinn Gardner.”locationMill Valley“Location where flooded roadways stranded a driver earlier in the week.”OrganizationNational Weather Service“Issued coastal advisories and reported tide inundation levels.”OrganizationAssociated Press“Source explaining the astronomical alignment causing king tides.”OrganizationSan Rafael City Council“Declared a state of emergency on Oct. 5 regarding El Niño impacts.”locationSanta Venetia“Neighborhood behind the levee bordering Gallinas Creek.”