Sonoma, CA – Thursday’s powerful storm drenched Sonoma County, bringing with it heavy rainfall that resulted in widespread flooding across the region. The storm dropped between 2 to 2.5 inches of rain across most valleys and up to 3.5 inches in the coastal mountains, significantly impacting the local infrastructure.

As of 4:30 p.m., several roads have been closed due to the flooding and the need for emergency repairs. The following closures were reported:

  • Valley Ford Road is closed between Highway 1 and Gericke Road due to rising water levels. A similar closure exists between Merchant Street and Bloomfield Road, also because of flooding.
  • Valley Ford Freestone Road is shut down between Highway 1 and Bodega Highway, further hampering travel in the area.
  • Highway 121, a vital route between Arnold Drive and Eighth Street East, remains closed due to flooding. In addition, Highway 12, a major thoroughfare between Watmaugh Road and Highway 121 (Fremont Drive), is closed for emergency work related to storm damage.
  • Mark West Station Road at Starr Road has been rendered impassable by floodwaters.
  • Green Valley Road between Thomas and Ross roads and Todd Road at Old Gravenstein Highway are both blocked by flooding as well.
  • Eastside Road, located between Trenton Healdsburg Road and Windsor River Road, continues to be closed due to high water levels.
  • Westbound Rohnert Park Expressway at Rancho Verde Circle is closed, with additional flooding reported at Rohnert Park Expressway at Stony Point Road.

The storm’s severe weather has left many residents and commuters struggling to navigate flooded areas. Local authorities have urged drivers to stay clear of flooded roads and use caution when traveling, as water levels could continue to rise with ongoing rain.

Crews are working around the clock to assess the damage and reopen affected roads, but officials have warned that some closures could last for an extended period. Residents are advised to monitor local updates for any changes to the road status.

As the region recovers from the storm, it remains clear that the impact of the heavy rainfall and flooding is far-reaching, disrupting daily life and posing safety risks to travelers across Sonoma County.