Willamette River

Streamflow Hydrology Weather


Willamette River Levels

May 6 2024

216,397 ACRE-FT

Discharge Volume Today
+16700.0 cfs (+18.07%) since yesterday
122.14% of Normal 6 Streamgauges

Total streamflow across the Willamette River was last observed at 109,100 cfs, and is expected to yield approximately 216,397 acre-ft of water today; about 122% of normal. River levels are high. Average streamflow for this time of year is 89,323 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 Newberg reporting a streamflow rate of 49,200 cfs. This is also the highest stage along the Willamette River, with a gauge stage of 63.9 ft at this location. 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 2024-05-05
Streamflow 109,100.0 cfs
Percent of Normal 122.14%
Maximum 674,700.0 cfs
2019-04-13

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
25000 cfs 8.48 ft 70.27
Willamette River At Corvallis
USGS 14171600
27500 cfs 18.7 ft 5.56
Willamette River At Albany
USGS 14174000
31200 cfs 12.56 ft 43.62
Willamette River At Salem
USGS 14191000
48600 cfs 14.37 ft 33.72
Willamette River At Newberg
USGS 14197900
49200 cfs 63.9 ft 25.64
Willamette River At Portland
USGS 14211720
33300 cfs 5.83 ft 14.83

Peak Annual Discharge

Willamette River Maximum Total Discharge

Seasonal Comparison

Willamette River Year Over Year Discharge


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