Rivermatics

USGS Streamgage 11179100

Alameda C near Fremont, CA

Alameda C near Fremont, CA is USGS streamgage 11179100 in California, monitoring river discharge in hydrologic subbasin 18050004. It sits on the Alameda C, alongside 5 other gauges Rivermatics tracks on the same river. It drains a watershed of about 638 square miles. Discharge records at this site go back to 2012. Typical flow runs near 5.9 cfs in July and 16 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
California
Drainage area
638 sq mi
Gauge elevation
24 ft
Subbasin (HUC-8)
18050004
Coordinates
37.5666, -122.00163
USGS site number
11179100
Records begin
2012-12-04 (14 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Alameda C near Fremont, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
5.1 7.8 10.3
4 8 12.3
3.6 8.1 13.1
3.7 8.6 14.5
3.6 8.6 14.5
3.7 8.8 15.4
3 8.5 16.1
2.7 8 14.8
2.4 7.6 14
2.5 8.1 15.3
3 9.3 17.2
3.1 9.1 16.3
2.7 8.5 15.3
2.6 8 14.3

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 13 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 0.5 17.6 2,453.1
February 1.6 24.9 2,167.1
March 2.1 28.1 1,496
April 1.4 16 222.1
May 1 7.3 51.3
June 0.7 10.2 29.7
July 0.2 5.9 24.6
August 0 6.2 24
September 0.1 6.3 25.4
October 0.1 5.2 122.7
November 0.1 4.6 65.2
December 0.3 5.6 726.6

All values in cubic feet per second (cfs).

Common questions

When does Alameda C near Fremont, CA normally run highest?
March, on the long-term record. The median daily flow that month is about 28.1 cfs, against 4.6 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Alameda C near Fremont, CA?
It depends on the month. In January, half of days historically fall near 17.6 cfs, with the middle 80% of days between 0.5 and 2,453.1 cfs. The month-by-month table on this page gives the full range.
How long has Alameda C near Fremont, CA been measured?
Discharge records at USGS site 11179100 begin in 2012, about 14 years, covering roughly 4,992 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Alameda C near Fremont, CA?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Alameda C near Fremont, CA?
The gauge sits at 37.5666, -122.00163, in California, in hydrologic subbasin 18050004, at an elevation of about 24 feet, draining roughly 638 square miles.
Can I use Alameda C near Fremont, CA data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Alameda C

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Alameda C in full.

Other gauges in this subbasin