Walnut C a Diamond Blvd Bridge near Concord CA

Contra Costa County, California · USGS gauge 11183670 · California river levels

Current readings are unavailable. Current flood status cannot be determined. Check the linked USGS and NWS sources for the latest information.

Gauge height

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as of unknown

Streamflow

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data refreshed 9 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
San Ramon C a San Ramon CA	13.9 mi	Contra Costa County
Sacramento River below Toland Landing near Rio Vista CA	17.3 mi	Solano County
Cull C above Cull C Reservoir near Castro Valley CA	17.4 mi	Alameda County
Crow C near Hayward CA	18.3 mi	Alameda County
San Lorenzo C above Don Castro Reservoir near Castro V CA	18.9 mi	Alameda 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