Rivermatics

USGS Streamgage 14141500

Little Sandy River near Bull Run, OR

Little Sandy River near Bull Run, OR is USGS streamgage 14141500 in Oregon, monitoring river discharge in hydrologic subbasin 17080001. It drains a watershed of about 23 square miles. Discharge records at this site go back to 1911. Typical flow runs near 32.3 cfs in July and 170.7 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, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Oregon
Drainage area
23 sq mi
Subbasin (HUC-8)
17080001
Coordinates
45.4154, -122.17147
USGS site number
14141500
Records begin
1911-05-01 (115 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Little Sandy River near Bull Run, OR. 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
10.7 11.1 11.5
10.5 11.2 12.1
10.8 11.9 14.2
10.6 11.7 13.7
10.3 11.1 12.3
9.9 10.7 11.6
9.7 10.4 11.2
9.6 10.3 11
9.4 10.1 10.9
9.3 10 10.7
9.2 9.9 10.6
9.1 9.8 10.6
9 9.7 10.5
8.9 9.7 10.5

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 106 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 68.6 155.1 512.8
February 67.6 143.3 426.4
March 78.2 150.8 341.6
April 91.2 170.7 309.9
May 60.5 139.2 282.7
June 33.6 75.2 199.9
July 19.5 32.3 59.4
August 12.6 17.8 32.8
September 11.8 18.6 70.3
October 15.3 43.4 195.7
November 39.1 132.3 448.5
December 64.7 159.3 534.5

All values in cubic feet per second (cfs).

Common questions

When does Little Sandy River near Bull Run, OR normally run highest?
April, on the long-term record. The median daily flow that month is about 170.7 cfs, against 17.8 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Little Sandy River near Bull Run, OR?
It depends on the month. In January, half of days historically fall near 155.1 cfs, with the middle 80% of days between 68.6 and 512.8 cfs. The month-by-month table on this page gives the full range.
How long has Little Sandy River near Bull Run, OR been measured?
Discharge records at USGS site 14141500 begin in 1911, about 115 years, covering roughly 9,201 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Little Sandy River near Bull Run, OR?
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. A companion model forecasts each day's water-temperature high and low. 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 Little Sandy River near Bull Run, OR?
The gauge sits at 45.4154, -122.17147, in Oregon, in hydrologic subbasin 17080001, draining roughly 23 square miles.
Can I use Little Sandy River near Bull Run, OR 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