Rivermatics

USGS Streamgage 10289500

Green Creek near Bridgeport, CA

Green Creek near Bridgeport, CA is USGS streamgage 10289500 in California, monitoring river discharge in hydrologic subbasin 16050301. It drains a watershed of about 20 square miles. Discharge records at this site go back to 1953. Typical flow runs near 51.7 cfs in July and 21.5 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

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Gauge details

State
California
Drainage area
20 sq mi
Gauge elevation
6,880 ft
Subbasin (HUC-8)
16050301
Coordinates
38.17381, -119.23377
USGS site number
10289500
Records begin
1953-10-01 (73 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Green Creek near Bridgeport, 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
3.6 4 4.4
3.3 3.8 4.3
3.1 3.7 4.3
2.9 3.6 4.3
2.8 3.5 4.3
2.7 3.4 4.2
2.6 3.3 4.2
2.5 3.2 4.1
2.4 3.2 4.1
2.3 3.1 4
2.5 3.6 5.4
2.6 3.7 5.6
2.5 3.7 5.4
2.4 3.4 5

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 73 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 4 7.5 16.6
February 5.3 9 13.6
March 7 11.4 19
April 12.3 21.5 37.8
May 28.3 51.3 108.9
June 38.5 81.8 171.5
July 20.5 51.7 149.6
August 8.9 21.9 65.2
September 3.9 9.8 27.1
October 4 7.1 15.8
November 4.3 6.9 14.2
December 4.1 6.9 14.2

All values in cubic feet per second (cfs).

Common questions

When does Green Creek near Bridgeport, CA normally run highest?
June, on the long-term record. The median daily flow that month is about 81.8 cfs, against 6.9 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 Green Creek near Bridgeport, CA?
It depends on the month. In January, half of days historically fall near 7.5 cfs, with the middle 80% of days between 4 and 16.6 cfs. The month-by-month table on this page gives the full range.
How long has Green Creek near Bridgeport, CA been measured?
Discharge records at USGS site 10289500 begin in 1953, about 73 years, covering roughly 5,625 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Green Creek near Bridgeport, 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 Green Creek near Bridgeport, CA?
The gauge sits at 38.17381, -119.23377, in California, in hydrologic subbasin 16050301, at an elevation of about 6,880 feet, draining roughly 20 square miles.
Can I use Green Creek near Bridgeport, 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.

Other gauges in this subbasin