How high is the North Santiam River at Mehama, OR right now?

The North Santiam River at Mehama, OR is currently flowing at 1,360 cubic feet per second with a gage height of 3.45 feet, based on the most recent USGS instantaneous reading.

Is the flow on the North Santiam River at Mehama, OR normal for this time of year?

Current flow is classified as low for October 28. Today's discharge is at the 19th percentile compared to the long-term historical record at this gauge.

Is the North Santiam River at Mehama, OR at flood stage?

No — the gage height is 7.55 feet below the NWS flood-stage threshold of 11.0 feet.

What is the historical median flow for the North Santiam River at Mehama, OR on October 28?

The long-term median discharge for this date is 2,710 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 794 to 7,420 cfs.

Where is the North Santiam River at Mehama, OR stream gauge located?

The North Santiam River at Mehama, OR stream gauge is operated by the USGS in Marion County, OR on the North Santiam River. USGS site number 14183000 (coordinates 44.7893, -122.6188).

North Santiam River at Mehama, OR

USGS Site No: 14183000 • North Santiam River • Marion County, OR

North Santiam River at Mehama, OR on the North Santiam River is currently at 1,360 cfs (Low — 19th percentile for this date) . Gage height: 3.45 ft.

Reading from 4 months ago

↑ Upstream on North Santiam River

North Santiam River at Niagara, OR

Downstream on North Santiam River ↓

North Santiam River at Greens Bridge, near Jefferson, OR

1,360

CFS Discharge

3.45

Gage Height (ft)

Low

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	794
25th	Low threshold	1,730	Today: 1,360 cfs
50th (Median)	Normal (median)	2,710
75th	High threshold	3,730
95th	Very High threshold	7,420

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	1,310	—
May 27, 2026	1,340	—
May 26, 2026	1,350	—
May 25, 2026	1,330	—
May 24, 2026	1,340	—
May 23, 2026	1,360	—
May 22, 2026	1,370	—
May 21, 2026	1,390	—
May 20, 2026	1,430	—
May 19, 2026	1,470	—
May 18, 2026	1,530	—
May 17, 2026	1,600	—
May 16, 2026	1,420	—
May 15, 2026	1,370	—
Apr 20, 2026	2,450	—
Apr 19, 2026	2,630	—
Apr 18, 2026	2,780	—
Apr 17, 2026	3,040	—
Apr 16, 2026	3,480	—
Apr 15, 2026	3,820	—
Apr 14, 2026	2,370	—
Apr 13, 2026	2,380	—
Apr 12, 2026	2,300	—
Apr 11, 2026	2,300	—
Apr 10, 2026	2,080	—
Apr 9, 2026	2,170	—
Apr 8, 2026	2,260	—
Apr 7, 2026	2,410	—
Apr 6, 2026	2,530	—
Apr 5, 2026	2,680	—

Station Information

USGS Site No: 14183000
State: OR
County: Marion County
Coordinates: 44.7893, -122.6188
Drainage Area: 654 mi²
Datum (ft): 605.8
HUC Code: 17090005

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 8.6 ft
Flood Stage: 11.0 ft
Moderate Flood: 12.5 ft
Major Flood: 13.5 ft

Currently 7.55 ft below flood stage.

Recent Extremes

Max discharge: 20,900 cfs

Dec 19, 2025
Min discharge: 1,010 cfs

Jul 30, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

North Santiam River at Niagara, OR
16.0 mi · 1,190 cfs

Low
Willamette River at Salem, OR
23.4 mi · 9,610 cfs

Normal
Breitenbush River above French Creek near Detroit, Or.
24.2 mi · 339 cfs

Normal
Blowout Creek Near Detroit, OR
25.7 mi · 34 cfs

Normal
north Santiam River below Boulder Crk, near Detroit, OR
26.0 mi · 724 cfs

High