What is the current flow on Columbia Slough?

Columbia Slough was running 819 cubic feet per second as of Aug 1, 2026, 6:20 PM UTC, measured at USGS gauge 14211820. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Columbia Slough

Oregon. Streamflow and water-temperature readings from USGS gauges. Running 819 cfs as of Aug 1, 2026, 6:20 PM UTC.

Latest Reading

819

cubic feet / second

USGS gauge

Flow measured Aug 1, 2026, 6:20 PM UTC at gauge 14211820. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Columbia Slough

Gauge	Station	Water temp?
14211820	COLUMBIA SLOUGH AT PORTLAND, OR	—

Fly fishing rivers →Oregon lakes →

Conditions: USGS NWIS (public domain).