USGS Water-Year Summary 2024

14142500 SANDY RIVER BELOW BULL RUN RIVER, NEAR BULL RUN, OR

LOCATION - Lat 45°26'57", long 122°14'38" referenced to North American Datum of 1927, in SW 1/4 sec.30, T.1 S., R.5 E., Clackamas County, OR, Hydrologic Unit 17080001, on left bank, 0.1 mi downstream from Bull Run River, 0.2 mi downstream from Dodge Park and at mile 18.4.

DRAINAGE AREA - 436 mi².

REVISIONS HISTORY - WDR OR-96-1: 1986 (P).

SURFACE-WATER RECORDS

PERIOD OF RECORD - April 1910 to September 1914, October 1929 to September 1966, May 1984 to current year. Monthly discharge only, April to September 1910, water year 1912, published in WSP 1318.

GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 240 ft above NGVD of 1929, from topographic map. April 1910 to September 1914, staff gage at present site at different datum. October 1929 to September 1966, water-stage recorder at site 0.8 mi downstream at different datum.

REMARKS - Flow regulated since 1915 by Bull Run Lake (station 14138560), since 1929 by Bull Run Reservoir Number One (station 14139000) and since 1961 by Bull Run Reservoir Number Two (station 14139900). Diversion upstream from station. Continuous water-quality records for period March 2006 to July 2008 have been collected at this location.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 84,400 ft³/s Dec. 22, 1964, gage height, 22.3 ft, site and datum then in use; minimum discharge, 45 ft³/s Sept. 26, 1962; minimum daily discharge, 63 ft³/s Oct. 12, Nov. 9, 1952.