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| Latitude: 38.36º N | Longitude: 121.34º W | Elevation: 5 Feet | ||
| Location: Sacramento County in California | Bulletin Group: San Joaquin | River Group: North San Joaquin | ||
| Action: 38.5 Feet | Minor Flood: 41.2 Feet | Moderate Flood: 44.5 Feet | Major Flood: 45.2 Feet |
| Please Note: |
| Observed Data Credit | |
 | Raw streamflow data is provided by the California Department of Water Resources. |
Historical Stage/Flow Data |
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|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
| 2025* | 13,700*** | 42.59*** | Feb 15, 2025 |
| 2024* | 13,400 | 42.98 | Mar 2, 2024 |
| 2023* | 73,600*** | 46.64*** | Jan 1, 2023 |
| 2022* | 7,790 | 38.99 | Dec 24, 2021 |
| 2021* | 3,000 | 32.00 | Jan 29, 2021 |
| Historical High Stage/Flow Events (Period of Record - Jan 1952 to Present)**** - Ranked by Flow | |||
| 2023* | 73,600*** | 46.64*** | Jan 1, 2023 |
| 1956* | 54,000 | 46.26 | Dec 23, 1955 |
| 2006* | 36,209 | 47.02 | Jan 01, 2006 |
| 1958 | 32,600 | 46.10 | Apr 03, 1958 |
| 1965* | 32,200 | 45.35 | Dec 23, 1964 |
| 1983* | 31,000 | 45.97 | Mar 14, 1983 |
| * Discharge affected by regulation or diversion ** Dataum changed from USED to NAVD88 on 06/20/2023. The difference is +2.46 ft and must be applied to all data before date to convert to NAVD88. *** Estimated from simulated data. Gauge data not reliable/missing. **** Additional high flow events occurred in 1986, 1997, & 1998 with only stage measured. Ranking by stage is not possible due to the dynamic nature of the channel. |
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| Location Photographs | ||
| ESRI™ Locator Map |
| Flood Impacts | |
| 45.2 Feet | Major Flood Stage - CA-99 begins to flood. |
| 44.5 Feet | Moderate Flood Stage - Dillard Road begins to flood. |
| 44.0 Feet | Twin Cities Road floods, based on March 2023 observations. |
| 41.2 Feet | Minor Flood Stage (Flood Warning) - Cosumnes River designed overflow channel begins to flow. |
| 38.5 Feet | Action Stage. |
| Product Disclaimer |
This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only. |
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