North Santiam River at Mehama, OR

Marion County, Oregon · USGS 14183000

Latest observation

What this gauge represents: This gauge measures conditions on North Santiam River at its USGS monitoring location in Marion County; conditions elsewhere on the waterway may differ.

How to read these numbers
Streamflow (ft³/s or CFS)

How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.

Gauge height (ft)

The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.

24-hour change

How much the latest reading has risen or fallen compared with roughly 24 hours earlier.

Historical median

The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.

River Pulse

Get Water Data's plain-language summary of current flow, historical context and recent direction.

NOAA flood stage

Official action and flood thresholds where available. These levels are specific to each gauge location.

Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.

RIVER PULSE

Below historical median · Rising

Flow vs typicalTypical

Streamflow is currently 1,670 ft³/s, 8% below the historical median for this date. Flow has risen 30 CFS over the past 24 hours.

USGS-reported historical daily median for 09-27: 1,820 ft³/s · Based on USGS day-of-year statistics

How trends & context are calculated →
NOAA flood-stage status:Below action stage
Current 3.6 ft · 5 ft below action stage · Flood stage 11 ft
RECENT STREAMFLOW

Streamflow trend

Daily mean streamflow · Aug 28–Sep 25 · dates shown in UTC · 29 observations

Look at the data (29 rows)
Displayed USGS daily mean streamflow observations
Date (UTC)Daily mean
Aug 28, 2026, 12:00 AM1,120 CFS
Aug 29, 2026, 12:00 AM1,140 CFS
Aug 30, 2026, 12:00 AM1,130 CFS
Aug 31, 2026, 12:00 AM1,130 CFS
Sep 1, 2026, 12:00 AM1,320 CFS
Sep 2, 2026, 12:00 AM1,640 CFS
Sep 3, 2026, 12:00 AM1,680 CFS
Sep 4, 2026, 12:00 AM1,730 CFS
Sep 5, 2026, 12:00 AM1,730 CFS
Sep 6, 2026, 12:00 AM1,730 CFS
Sep 7, 2026, 12:00 AM1,700 CFS
Sep 8, 2026, 12:00 AM1,700 CFS
Sep 9, 2026, 12:00 AM1,690 CFS
Sep 10, 2026, 12:00 AM1,690 CFS
Sep 11, 2026, 12:00 AM1,670 CFS
Sep 12, 2026, 12:00 AM1,680 CFS
Sep 13, 2026, 12:00 AM1,690 CFS
Sep 14, 2026, 12:00 AM1,700 CFS
Sep 15, 2026, 12:00 AM1,700 CFS
Sep 16, 2026, 12:00 AM1,700 CFS
Sep 17, 2026, 12:00 AM1,700 CFS
Sep 18, 2026, 12:00 AM1,650 CFS
Sep 19, 2026, 12:00 AM1,620 CFS
Sep 20, 2026, 12:00 AM1,630 CFS
Sep 21, 2026, 12:00 AM1,610 CFS
Sep 22, 2026, 12:00 AM1,620 CFS
Sep 23, 2026, 12:00 AM1,640 CFS
Sep 24, 2026, 12:00 AM1,630 CFS
Sep 25, 2026, 12:00 AM1,620 CFS
STATION DETAILS

About this gauge

Site type: Stream
County: Marion County
Drainage area: 654 mi²
Current measurements: 3
DATA SOURCE

Official USGS station

Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.

View USGS station →
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LIVE RIVER CONDITIONS
North Santiam River at Mehama, ORUSGS 14183000
STREAMFLOW1,670 ft³/s
GAUGE HEIGHT3.56 ft