USGS Water-Year Summary 2022
14211400 JOHNSON CREEK AT REGNER ROAD, AT GRESHAM, OR
LOCATION - Lat 45°29'12", long 122°25'14" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.15, T.1 S., R.3 E., Multnomah County, OR, Hydrologic Unit 17090012, on left bank, at Regner Road, 1.5 mi southeast of Gresham City Hall and at mile 16.3.
DRAINAGE AREA - 15.36 mi².
PERIOD OF RECORD - February 1998 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 305 ft above NGVD of 1929, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,750 ft³/s Dec. 7, 2015, gage height, 11.78 ft; minimum daily discharge, 0.13 ft³/s Sept. 6, 2003.
PERIOD OF DAILY RECORD
WATER TEMPERATURE: January 1999 to current year.
TURBIDITY: October 2006 to June 2009, October 2009 to June 2013 (seasonal records only), September 2013 to current year.
INSTRUMENTATION - Water-quality monitor. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
EXTREMES FOR PERIOD OF DAILY RECORD
WATER TEMPERATURE: Maximum, 30.4°C June 28 2021; Minimum, -0.8°C Jan. 6, 7, 2017.
TURBIDITY: Maximum, 881 FNU Apr. 26, 2012; minimum, <1 FNU July 10 to Sept. 30, 2011.