Santiam River Flow Today
As of October 15, 2026 at 1:00 AM, the Santiam River is flowing at 2,590 cfs at Jefferson, OR — 57% of normal for the date and down 2% in 24 hours. ❤ Favorite
Santiam River map
See the Santiam River on a live map
Every gauge, dam and paddle run on the river, one tap each:
- Gauges now — which reaches are high or low
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Santiam River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Jefferson, the Santiam River is running 2,590 cfs — 57% of normal, down 2% since yesterday. Along the river, 1 of 1 reporting gauges are below normal (the typical gauge is at 57% of normal).
How the Santiam River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Jefferson207 ft 2,590 cfs57%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Santiam River streamgauge, placed by its own percent of normal. The line is the typical gauge (57%).
Santiam River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Santiam River At Jefferson OR
Oct 15, 1:00 AM · USGS 14189000 |
2,590 cfs | 57% | -2% | 2.94 ft | 12.1 ft below | 207 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Santiam River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Santiam River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Santiam River
The Santiam River is a 110-mile river located in the Willamette Valley of western Oregon. The river is sourced from the Cascade Range and flows into the Willamette River near Salem. Historically, the Santiam River was used by Native American tribes for fishing and trading. In the early 1900s, the river was dammed to create hydroelectric power, resulting in the formation of three reservoirs: Detroit Lake, Big Cliff Lake, and Green Peter Lake. These reservoirs now provide irrigation for agriculture and drinking water for communities in the region. The Santiam River is also popular for recreational activities such as fishing, boating, and hiking. The river is home to various species of fish, including Chinook salmon, steelhead trout, and rainbow trout.
Fishing near the Santiam River
About the Santiam River
How is the Santiam River flowing right now?
As of October 15, 2026, the Santiam River is flowing at 2,590 cfs at Jefferson, OR, about 57% of normal for the date. Every gauge’s live reading is in the table above.
Is the Santiam River running high or low?
The typical gauge on the Santiam River is at 57% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
What is flood stage on the Santiam River?
The National Weather Service sets flood stages for Jefferson (15.0 ft). The table shows how far each gauge is below its flood stage right now.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.