COLUMBIA SLOUGH AT PORTLAND, OR
USGSOregon (45.63901, -122.76316) · View on map
Current reading
355 CFS
Gauge height: 1.36 FT
Read about 1 hour ago · Oct 21, 2026 7:20 AM PDT
Flow history — last 6 days
No readings recorded in the last 6 days.
Runs on this gauge
No runs currently read this gauge.