PROVISIONAL DATA SUBJECT TO REVISION

Station funded by U.S. Geological Survey National Streamflow Information Program (NSIP).

14202000  PUDDING RIVER AT AURORA, OR

LOCATION.--Lat 45° 14'00", long 122° 44'56", in SW 1/4 SE 1/4 sec.12, T.4 S., R.1 W.,
   Clackamas County, Hydrologic Unit 17090009, upstream side of bridge on U.S. 
   Highway 99E at Aurora, 0.9 mi upstream from Mill Creek and at mile 8.11.
DRAINAGE AREA.--479 mi2.
PERIOD OF RECORD.--October 1928 to September 1964, October 1993 to September 1997, 
   November 2002 to current year.
GAGE.--Water-stage recorder. 
   Datum of gage is 72.23 ft above NGVD of 1929. Prior to Sept. 30, 1961 staff or wire-weight 
   gage at same site at datum 5.00 ft higher. All gage heights given herein are at present 
   datum.
REMARKS.--Many diversions for irrigation upstream from station. Additional data for 
   period July to September 1993 available in files of the Portland Field Office.
EXTREMES FOR PERIOD RECORD.--Maximum discharge, 43,700 ft3/s Feb. 8, 1996, gage 
   height, 30.72 ft, from rating curve extended above 23,000 ft3/s; minimum daily 
   discharge, 3.5 ft3/s Aug. 6, 20, 28, 1994, but may have been lower during period 
   of missing record.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Jan. 7, 1923 reached a stage of 30.0 ft, 
   present datum, from floodmarks, discharge, 37,000 ft3/s (revised), from rating curve 
   extended above 23,000 ft3/s.   Flood of Dec. 23, 1964 reached a stage of 29.57 ft, 
   discharge, 34,000 ft3/s (revised), from rating curve extended above 23,000 ft3/s.

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