Updated
Duncan Slough
River
Live flow only — judge the water in person
Use cautionLive flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby.
- Flow is below the 25th percentile for Aug 22 (median 141,000 ft³/s over 36 years).
tributary to Brown Slough in Wahkiakum County, Washington, United States
Interactive map not available
Live flow only — judge the water in person
Use cautionLive flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby. — USGS gauge 14246900, as of Aug 21, 6:50 PM gauge-local time
- Flow is below the 25th percentile for Aug 22 (median 141,000 ft³/s over 36 years). — USGS daily streamflow statistics, as of Aug 21, 6:50 PM gauge-local time
Flow is low for this date — below the 25th percentile for Aug 22 (median 141,000 ft³/s over 36 years).
No official beach-advisory feed for Washington yet — follow posted signs and local guidance.
Live, provisional data from USGS gauge COLUMBIA RIVER AT PORT WESTWARD, NEAR QUINCY, OR (11.3 mi away), as of Aug 21, 6:50 PM gauge-local time.
Weather at Duncan Slough









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Frequently asked questions
- Where is Duncan Slough?
- Duncan Slough is a river in Washington.
- Can you swim at Duncan Slough?
- Live flow only — judge the water in person: live streamflow is available but no water-temperature sensor is nearby. Checked August 21, 2026.
- What amenities does Duncan Slough have?
- Visitor-listed amenities at Duncan Slough include camping-nearby.
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Location & Contact
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