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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
14206900 FANNO CREEK AT 56TH AVENUE, AT PORTLAND, OR
LOCATION - Lat 45°29'17", long 122°44'01" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.18, T.1 S., R.1 E., Multnomah County, OR, Hydrologic Unit 17090010, on bridge at SW 56th Ave., in Portland and at mile 11.9.
DRAINAGE AREA - 2.37 mi².
REVISIONS HISTORY - WDR OR-92-1: 1991, 1991(m).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1974 to September 1977 (annual maximum only), October 1990 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 242.75 ft above NAVD of 1988 determined by GNSS Level II survey.
REMARKS - No regulation or diversion upstream from station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 733 ft³/s Feb. 8, 1996, gage height, 13.2 ft, from floodmark, from rating curve extended above 200 ft³/s; no flow for part of many days during water years 2014-16.
