Rivermatics

USGS Streamgage 14158850

McKenzie River below Trail Br Dam near Belknap Springs, OR

McKenzie River below Trail Br Dam near Belknap Springs, OR is USGS streamgage 14158850 in Oregon, monitoring river discharge in hydrologic subbasin 17090004. It sits on the Mckenzie River, alongside 8 other gauges Rivermatics tracks on the same river. It drains a watershed of about 184 square miles. Discharge records at this site go back to 1959. Typical flow runs near 804 cfs in July and 1,204 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
184 sq mi
Subbasin (HUC-8)
17090004
Coordinates
44.2679, -122.04978
USGS site number
14158850
Records begin
1959-10-01 (67 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for McKenzie River below Trail Br Dam near Belknap Springs, 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
575 581 587
572 581 591
573 587 609
568 587 616
564 586 618
560 584 619
557 584 622
555 584 627
554 584 630
552 585 633
551 585 636
551 585 637
551 586 639
548 586 643

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 67 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 765.5 1,088.2 1,737.1
February 750.2 1,084.1 1,716.6
March 764.3 1,082.3 1,578.7
April 923.2 1,204 1,658.3
May 891 1,221.3 1,736.8
June 756.1 1,001.6 1,502.3
July 628 804 1,057.5
August 575.1 707.3 887.5
September 551.7 663 810.3
October 545.6 662.2 833
November 610.9 840 1,268.3
December 705.9 1,048.1 1,797.1

All values in cubic feet per second (cfs).

Common questions

When does McKenzie River below Trail Br Dam near Belknap Springs, OR normally run highest?
May, on the long-term record. The median daily flow that month is about 1,221.3 cfs, against 662.2 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for McKenzie River below Trail Br Dam near Belknap Springs, OR?
It depends on the month. In January, half of days historically fall near 1,088.2 cfs, with the middle 80% of days between 765.5 and 1,737.1 cfs. The month-by-month table on this page gives the full range.
How long has McKenzie River below Trail Br Dam near Belknap Springs, OR been measured?
Discharge records at USGS site 14158850 begin in 1959, about 67 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 McKenzie River below Trail Br Dam near Belknap Springs, 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 McKenzie River below Trail Br Dam near Belknap Springs, OR?
The gauge sits at 44.2679, -122.04978, in Oregon, in hydrologic subbasin 17090004, draining roughly 184 square miles.
Can I use McKenzie River below Trail Br Dam near Belknap Springs, 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.

Upstream and downstream on the Mckenzie River

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

Other gauges in this subbasin