CNRFC - Hydrology - River Guidance - Graphical RVF

End of River Group

Location:

MOKELUMNE RIVER - BENSON'S FERRY (THTC1)

Latitude: 38.26º N	Longitude: 121.44º W	Elevation: 16 Feet
Location: Sacramento County in California		Bulletin Group: San Joaquin		River Group: North San Joaquin

Issuance Time:

Jul 08 2025 at 7:41 AM PDT

Next Issuance:

Jul 09 2025 at 9:00 AM PDT

Action/Monitor: 12.0 Feet

Minor Flood: 17.0 Feet

Moderate Flood: 28.6 Feet

Major Flood: 29.6 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024	--	10.87	Mar 4, 2024
2023	--	20.23	Jan 1, 2023
2022	--	10.71	Dec 29, 2021
2021	--	6.71	Jan 29, 2021
2020	--	8.25	Apr 8, 2020
Historical High Stage/Flow Events (Period of Record - Jan 1959 to Present) - Ranked by Stage
1997	--	21.69	Jan 02, 1997
2017	--	20.57	Feb 11, 2017
2023	--	20.23	Jan 1, 2023
2006	--	18.54	Apr 06, 2006
1986	--	18.32	Feb 18, 1986
1995	--	17.51	Mar 12, 1995
* Datum changed from NGVD29 to NAVD88 on 10/01/2006. The difference is -0.75 ft and must be applied to all data before date to convert to NAVD88

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
29.6 Feet	Top of Levee Left Bank
17.25 Feet	Some local farm roads are closed. Low lying areas along the river are flooded.

Official 7 Day National Weather Service Forecast (CAZ017)

Tonight: Clear. Lows 53 to 60. Southwest winds up to 15 mph.

Wednesday: Sunny. Highs 89 to 95. Light winds becoming west up to 10 mph in the afternoon.

Wednesday Night: Clear. Lows 58 to 68. Southwest winds up to 10 mph.

Thursday: Sunny, warmer. Highs 98 to 104. Northwest winds up to 10 mph.

Thursday Night: Clear. Lows 61 to 71. Southwest winds up to 10 mph with gusts to around 20 mph.

Friday: Sunny. Highs 96 to 104.

Friday Night: Clear. Lows 58 to 68.

Saturday through Tuesday: Clear. Highs 91 to 101. Lows 57 to 67.

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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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.