Rivermatics

USGS Streamgage 14147500

N Fk of M Fk Willamette River near Oakridge, OR

N Fk of M Fk Willamette River near Oakridge, OR is USGS streamgage 14147500 in Oregon, monitoring river discharge in hydrologic subbasin 17090001. It drains a watershed of about 246 square miles. Discharge records at this site go back to 1909. Typical flow runs near 260.6 cfs in July and 1,096 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
Oregon
Drainage area
246 sq mi
Subbasin (HUC-8)
17090001
Coordinates
43.75679, -122.50533
USGS site number
14147500
Records begin
1909-10-01 (117 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 85 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 394.2 881.8 2,464.2
February 472.3 930.6 2,259.3
March 534.9 926.5 1,982.6
April 583.9 1,096 1,809.3
May 467.5 959 1,634.2
June 295.8 567.9 1,127.3
July 184.2 260.6 420.2
August 130.9 169.4 233.5
September 119.1 151.7 218.1
October 118 177 464
November 170.8 554.8 1,920.4
December 283.5 863.6 2,602.3

All values in cubic feet per second (cfs).

Common questions

When does N Fk of M Fk Willamette River near Oakridge, OR normally run highest?
April, on the long-term record. The median daily flow that month is about 1,096 cfs, against 151.7 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for N Fk of M Fk Willamette River near Oakridge, OR?
It depends on the month. In January, half of days historically fall near 881.8 cfs, with the middle 80% of days between 394.2 and 2,464.2 cfs. The month-by-month table on this page gives the full range.
How long has N Fk of M Fk Willamette River near Oakridge, OR been measured?
Discharge records at USGS site 14147500 begin in 1909, about 117 years, covering roughly 5,908 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is N Fk of M Fk Willamette River near Oakridge, OR?
The gauge sits at 43.75679, -122.50533, in Oregon, in hydrologic subbasin 17090001, draining roughly 246 square miles.
Can I use N Fk of M Fk Willamette River near Oakridge, 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