Cull C above Cull C Reservoir near Castro Valley CA

Alameda County, California · USGS gauge 11180960 · NWS CULC1 · California river levels

Is Cull C above Cull C Reservoir near Castro Valley CA flooding right now?

Cull C above Cull C Reservoir near Castro Valley CA measured 1.55 ft on 2026-10-27 17:50:00 UTC. No NWS minor flood stage is published for this gauge.

Gauge height

1.55 ft

as of 64 min ago

Streamflow

0 cfs

data refreshed 8 min ago

No National Weather Service flood stage is published for this gauge, so no flood category can be shown — why some gauges have no flood stage.

Nearby gauges

Gauge	Distance	County
Crow C near Hayward CA	1.0 mi	Alameda County
San Lorenzo C above Don Castro Reservoir near Castro V CA	1.6 mi	Alameda County
San Lorenzo C a Hayward CA	2.3 mi	Alameda County
Castro Valley C a Hayward CA	3.0 mi	Alameda County
San Ramon C a San Ramon CA	5.0 mi	Contra Costa County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast