Willamette River

Streamflow Hydrology Weather

Willamette River Levels

September 21 2023

64,146 ACRE-FT

Discharge Volume Today
+1420.0 cfs (+4.59%) since yesterday
84.51% of Normal 6 Streamgauges

Total streamflow across the Willamette River was last observed at 32,340 cfs, and is expected to yield approximately 64,146 acre-ft of water today; about 85% of normal. Average streamflow for this time of year is 38,268 cfs, with recent peaks last observed on 2019-04-13 when daily discharge volume was observed at 674,700 cfs.

Maximum discharge along the river is currently at the Willamette River At Portland reporting a streamflow rate of 11,400 cfs. However, the streamgauge with the highest stage along the river is the Willamette River At Newberg with a gauge stage of 56.11 ft. This river is monitored from 6 different streamgauging stations along the Willamette River, the highest being situated at an altitude of 294 ft, the Willamette River At Harrisburg.

Last Updated 2023-09-21
Streamflow 32,340.0 cfs
Percent of Normal 84.51%
Maximum 674,700.0 cfs

About the willamette river

The Willamette River is a major tributary of the Columbia River, running approximately 187 miles through western Oregon. The river has a rich history, having been home to several Native American tribes and having played a pivotal role in the region's settlement and industrialization. Today, the river is heavily utilized for recreational activities such as fishing, boating, and swimming, as well as agricultural purposes. Additionally, several reservoirs and dams have been constructed along the river, including the Detroit Dam and Foster Reservoir, which are used for hydroelectric power generation and flood control. The river's hydrology is characterized by seasonal variation in water levels and flow rates, with high flows in the winter and low flows in the summer. Despite some water quality concerns, efforts have been made to protect and restore the river's ecological health.

Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Willamette River At Harrisburg
USGS 14166000
3770 cfs 1.7 ft -0.53
Willamette River At Corvallis
USGS 14171600
3730 cfs 9.62 ft -0.27
Willamette River At Albany
USGS 14174000
4180 cfs 2.46 ft -0.48
Willamette River At Salem
USGS 14191000
6270 cfs 4.97 ft 0
Willamette River At Newberg
USGS 14197900
6720 cfs 56.11 ft -6.8
Willamette River At Portland
USGS 14211720
11400 cfs 2.24 ft 20.63

Peak Annual Discharge

Willamette River Maximum Total Discharge

Seasonal Comparison

Willamette River Year Over Year Discharge

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