Sandy River Flow Today
As of November 11, 2026 at 10:45 PM, the Sandy River is flowing at 526 cfs below Bull Run River, OR — 32% of normal for the date and down 9% in 24 hours. 4 of 4 USGS gauges reported in the last 3 days; flows range from 20 to 526 cfs. ❤ Favorite
Sandy River map
See the Sandy River on a live map
Every gauge, dam and paddle run on the river, one tap each:
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Sandy 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 Bull Run River, the Sandy River is running 526 cfs — 32% of normal, down 9% since yesterday. Along the river, 4 of 4 reporting gauges are below normal (the typical gauge is at 39% of normal).
In the last 24 hours the river is dropping at Mercer (-12%).
How the Sandy 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
- Marmot735 ft 335 cfs43%
- Danville481 ft 20 cfs43%
- Bull Run River230 ft 526 cfs32%
- Mercer190 ft 158 cfs36%
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 Sandy River streamgauge, placed by its own percent of normal. The line is the typical gauge (39%).
Sandy River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Sandy River Near Marmot OR
Nov 11, 11:15 PM · USGS 14137000 |
335 cfs | 43% | -8% | 689.95 ft | · | 735 ft |
|
Sandy River Near Danville VA
Nov 12, 2:00 AM · USGS 02074500 |
20 cfs | 43% | 0% | 1.03 ft | 7.0 ft below | 481 ft |
|
Sandy River Below Bull Run River OR
Nov 11, 10:45 PM · USGS 14142500 |
526 cfs | 32% | -9% | 8.08 ft | 11.2 ft below | 230 ft |
|
Sandy River Near Mercer ME
Nov 12, 3:00 AM · USGS 01048000 |
158 cfs | 36% | -12% | 3.02 ft | 9.0 ft below | 190 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 Sandy River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Sandy River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Sandy River
The Sandy River is a 56-mile long river located in northern Oregon. The river was named after the sandbars that form at the mouth of the river. Historically, the river was used for fishing, logging, and transportation. Today, the river is used for hydroelectric power, irrigation, and recreational purposes. The river's hydrology is heavily influenced by snowmelt, and its flow is regulated by several dams and reservoirs, including the Bull Run Reservoir and the Sandy River Reservoir. These dams and reservoirs provide drinking water to the Portland metropolitan area. The river is a popular destination for fishing, camping, hiking, and river-rafting. The watershed of the Sandy River also supports agriculture and forestry in the region.
About the Sandy River
How is the Sandy River flowing right now?
As of November 11, 2026, the Sandy River is flowing at 526 cfs below Bull Run River, OR, about 32% of normal for the date. Across its 4 USGS gauges, current flows range from 20 to 526 cfs. Every gauge’s live reading is in the table above.
Is the Sandy River running high or low?
The typical gauge on the Sandy River is at 39% 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 Sandy River?
The National Weather Service sets flood stages for Danville (8.0 ft), Bull Run River (19.3 ft), Mercer (12.0 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.