Old River near Delta Mendota Canal water level

Name: Old River near Delta Mendota Canal water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Old River, California, United States

Directions

Latest reading

Water level

2.97ft Down 0.13 ft over the last 24 hours

Measured Oct 20, 2026, 09:00 AM PDT (51 min ago)

Flow: 329 cfs

History

7 days

Water level

What this means

The latest river stage reported for Old River near Delta Mendota Canal is 2.97 ft. There is no published reference for this river yet, so we can't say whether that is high or low for the season.

The level is falling, down 0.13 ft over the past 24 hours. Over the past 30 days it has moved between 2.61 ft and 6.43 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

What the stage means on the water

With no published normal range, paddlers and anglers should go by the trend: a rising river usually means muddier, faster water.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:20 AM Sunset 06:23 PM Daylight 11 hr, 3 min Waxing gibbous 70%

Map

Other gauges on the Old River

Gauge	Level	Compared with normal	24 hours	Distance
Old River near ByronRiver gauge, Old River	3.21 ft	No reference yet	−0.27 ft	5.8 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Arroyo Valle near LivermoreRiver gauge, Arroyo Valle	8.3 cfs	High	±0	18 mi
San Joaquin River near VernalisRiver gauge, San Joaquin River	9.74 ft	Below flood stage	−0.47 ft	18 mi
Alamo Canal near PleasantonCanal gauge, Alamo Canal	1.88 ft	Below flood stage	+0.04 ft	22 mi
Arroyo De La Laguna A VeronaRiver gauge	0.75 ft	Below flood stage	+0.01 ft	23 mi
San Antonio Creek near SunolRiver gauge, San Antonio Creek	0.0 cfs	Normal	±0	24 mi
Stanislaus R A RiponRiver gauge	40.27 ft	Below flood stage	−0.65 ft	24 mi
San Ramon C A San RamonRiver gauge	0.0 cfs	Low	±0	25 mi
Alameda Creek above Diversion Dam near SunolRiver gauge, Alameda Creek	1.61 ft	Below flood stage	+0.01 ft	25 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Old River near Delta Mendota Canal today?

On Oct 20, 2026, 09:00 AM PDT, the water level was 2.97 ft. Down 0.13 ft over the last 24 hours.

Is Old River near Delta Mendota Canal rising or falling?

Down 0.13 ft over the last 24 hours.

Is the level of Old River near Delta Mendota Canal normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:11312968 (Agency page)
Coordinates: 37.81048, -121.54245 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	2.97 ft	2026-10-20 16:00	Provisional
Flow	329 cfs	2026-10-20 16:00	Provisional

Download

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How to cite

U.S. Geological Survey: Old River near Delta Mendota Canal (usgs:11312968). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/old-river-near-delta-mendota-canal

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer