Mark West Creek near Mirabel Heights

The past week

What floods at each level

• 65 ft

  Major Flooding. Major roadway inundation on Trenton-Healdburg Road, Wohler Road in the vicinity of Mark West Creek, and Eastside Road. Trenton-Healdsburg Road bridge over Mark West Creek flooded and/or backwatered. Major flooding of lowest vineyards adjacent to channels, of approximately 5-10 feet deep or more. Lower Windsor Creek also likely flooding.

• 59 ft

  Moderate Flooding. Trenton-Healdsburg Road begins to flood at lowest spots on right bank (north side). Portions of Wohler Road downstream also likely flooded, including Wohler Road Bridge over Mark West Creek. NWS will issue Flash Flood Warning, if not yet already issued.

• 55 ft

  Minor Flooding. More severe flooding occurring on adjacent agricultural lands and access roads. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.

• 50.5 ft

  Action Stage. Low-lying floodplain vineyards and agricultural land on both side of channel, mostly downstream of Trenton-Healdsburg Road, begin to flood.