PROVISIONAL DATA SUBJECT TO REVISION

Station operated in cooperation with Portland Water Bureau.

STATION.--14138720  BULL RUN RIVER AT LOWER FLUME, NEAR BRIGHTWOOD, OR
LOCATION.--Lat 45° 28'08", long 121° 51'55", in SE 1/4 NE 1/4 sec.19, T.1 S., R.8 E., 
Multnomah County, Hydrologic Unit 17080001, at flume, 1.0 mi downstream from outlet 
structure at Bull Run Lake, 10.4 mi northeast of Brightwood, and at mile 20.9.
DRAINAGE AREA.--5.08 mi2.
PERIOD OF RECORD.--October 1992 to current year.
GAGE.--Water-stage recorder. Elevation of gage is 2,840 ft above NGVD of 1929, from 
topographic map.
REMARKS.--Regulation at times by Bull Run Lake. U.S. Geological Survey satellite 
telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 148 ft3/s Feb. 7, 1996, gage height, 
3.41 ft, from rating curve extended above 63 ft3/s on basis of slope-area measurement 
of peak flow; minimum discharge, 8.2 ft3/s Oct. 28, 1992.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.