USGS Water-Year Summary 2020
14138560 BULL RUN LAKE NEAR BRIGHTWOOD, OR
LOCATION - Lat 45°27'40", long 121°50'34" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.20, T.1 S., R.8 E., Multnomah County, OR, Hydrologic Unit 17080001, Mount Hood National Forest, in generator house on northwest side of Bull Run Lake, near outlet structure, 10.7 mi northeast of Brightwood and at mile 21.9.
DRAINAGE AREA - 3.5 mi².
- WDR OR-95-1: 1993, 1994.
PERIOD OF RECORD - October 1992 to current year.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (Portland Water Bureau bench mark).
COOPERATION - Capacity table provided by Portland Water Bureau, extended above elevation 3,180 ft by U.S. Geological Survey, Oct. 1, 1996.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 48,340 acre-ft Feb. 9, 1996, elevation, 3,185.02 ft; minimum contents observed, 31,080 acre-ft Oct. 29, 1992, elevation, 3,143.97 ft.