Marys River Flow Today
As of October 15, 2026 at 12:00 AM, the Marys River is flowing at 15 cfs near Philomath, OR — 50% of normal for the date and up 9% in 24 hours. 2 of 3 USGS gauges reported in the last 3 days; flows range from 1.9 to 15 cfs. ❤ Favorite
Marys River map
See the Marys 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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Marys 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 Philomath, the Marys River is running 15 cfs — 50% of normal, up 9% since yesterday. Along the river, 1 of 2 reporting gauges are near normal (the typical gauge is at 79% of normal).
How the Marys 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
- Deeth5,513 ft 1.9 cfs108%
- Philomath248 ft 15 cfs50%
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 Marys River streamgauge, placed by its own percent of normal. The line is the typical gauge (79%).
Marys River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Marys River Below Orange Bridge Near Charleston Nv NV
Last reported Oct 12 · USGS 10313400 |
7.5 cfs | · | · | 1.58 ft | · | 5,950 ft |
|
Marys River Above Hot Springs Creek Near Deeth NV
Oct 15, 12:15 AM · USGS 10315500 |
1.9 cfs | 108% | -22% | 1.01 ft | 5.0 ft below | 5,513 ft |
|
Marys River Near Philomath OR
Oct 15, 12:00 AM · USGS 14171000 |
15 cfs | 50% | +9% | 1.94 ft | 18.1 ft below | 248 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.
Marys River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Marys River
The Marys River is a river in western Oregon that flows for approximately 41 miles from the Coast Range to the Willamette River. It was named after a Native American tribe that lived in the area. The river has historically been used for fishing by the local tribes and later for logging and transportation. It also has been a source of water for agriculture and drinking water for nearby towns. The river is dammed at two locations, the first being the Marys River Dam, which creates the Starker Reservoir, and the second being the Woods Creek Dam, which creates the Woods Creek Reservoir. These reservoirs are used for water storage, flood control, and hydroelectric power generation. The Marys River is a popular spot for recreation, including fishing, kayaking, and hiking along its banks.
About the Marys River
How is the Marys River flowing right now?
As of October 15, 2026, the Marys River is flowing at 15 cfs near Philomath, OR, about 50% of normal for the date. Across its 3 USGS gauges, current flows range from 1.9 to 15 cfs. Every gauge’s live reading is in the table above.
Is the Marys River running high or low?
The typical gauge on the Marys River is at 79% 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 Marys River?
The National Weather Service sets flood stages for Deeth (6.0 ft), Philomath (20.0 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.