Columbia River at Bonneville Dam (outflow), OR

SKAMANIA COUNTY, WA45.6458°N, -121.9389°W Updated 9 hr ago

FLOW RATE

80,489cfs

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

80,489cfs

Optimal band: 69,749–94,367 cfs

PERIOD HIGH

121,750cfs

PERIOD LOW

72,200cfs

RUNNABLE

71%

last 1 year in band

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45.6458, -121.9389

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DATA · USACE · NOAA · NWSUPDATED 2026-09-21 00:00 UTC

Site #nwdp:BON.Flow-Out.Ave.1Hour.1Hour.CBT-REV·USACE

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