Petaluma River at D Street Bridge
California — Water Level & Flood Stage
Located in Sonoma County, California on the Petaluma River. Live water level data from USGS, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: PTBC1). Live data may be limited. View on NWS AHPS →
Flood Stages
Major Flood
9.8 ft
Moderate Flood
8.6 ft
Minor Flood
8.4 ft
Action Stage
8 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
9.8 ft
Major Flood Stage. Water reaches elevation of C Street pump station floor height.
8.6 ft
Moderate Flood Stage. NWS will issue a Flash Flood Warning if not already issued. Streets start to flood down to C Street. C Street sewer pump station sand-bagged.
8.4 ft
Minor Flood Stage. Water begins going out of bank at the foot of C Street.
8 ft
Action Stage. NWS and City of Petaluma begin to monitor the situation closely. City of Petaluma Fire Chief, Watch Commander, and Water Resources and Conservation Director notified.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Feb 7, 1998 | 6.38 ft | — |
| Feb 7, 1998 | 6.38 ft | — |
| Feb 6, 1998 | 6 ft | — |
| Feb 6, 1998 | 6 ft | — |
About This Gauge
NWS LID
PTBC1
River
Petaluma River
County
Sonoma, CA
Coordinates
38.2333°N, 122.6347°W
Get Flood Alerts for Petaluma River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Petaluma River at D Street Bridge?
The Petaluma River at D Street Bridge gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Petaluma River at D Street Bridge?
The NWS-defined flood stage for Petaluma River at D Street Bridge is 8.4 feet. Action stage begins at 8 feet. Moderate flooding starts at 8.6 feet, and major flooding at 9.8 feet.
How do I get alerts when Petaluma River rises?
Download StormCast free on Google Play, go to River Gauges, and add Petaluma River at D Street Bridge to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Petaluma River at D Street Bridge gauge located?
The gauge is located in Sonoma County, California at coordinates 38.2333°N, 122.6347°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Petaluma River
More Resources
Source & Notes
Data provided by: City of Petaluma