USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

Available data for this site

Multnomah County, Oregon

Hydrologic Unit Code 17090012

Latitude 45°27'43", Longitude 122°36'54" NAD27

Drainage area 46.9 square miles

Gage datum 100 feet above NGVD29

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Oregon Water Data Support Team
Page Last Modified: 2025-12-13 15:08:17 EST
1.38 1.21 vaww02

452743122365400 JOHNSON CREEK AT 45TH AVENUE, PORTLAND, OR