PROVISIONAL DATA SUBJECT TO REVISION

Station operated in cooperation with the U.S. Army Corps of Engineers and funded by
U.S. Geological Survey National Streamflow Information Program (NSIP).

STATION.-- 14207770  WILLAMETTE RIVER BELOW FALLS, AT OREGON CITY, OR

LOCATION.--Lat 45° 21'28", Long 122° 36'35", in NE 1/4 NW 1/4 sec.31, T.2 S., R.2 E., 
   Clackamas County, Hydrologic Unit 17090007, on right bank 0.5 mi below Willamette 
   Falls, 1.4 mi upstream from Clackamas River, and at mile 26.2. 
DRAINAGE AREA.--10,000 mi2, approximately. 
PERIOD OF RECORD.--November 1976 to current year. 
GAGE.--Water-stage recorder. Datum of gage is NGVD of 1929 (Oregon State Highway Division 
   bench mark). 
REMARKS.--Flow regulated by many reservoirs upstream. Gage out of operation during period 
   October 1993 to January 1994 and July to September 1994. Fragmentary record for this 
   period available in files of the Portland field office. 
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 46.04 ft Feb. 9, 1996, from 
   high-water mark; minimum, 1.24 ft July 14, 2001.