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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
14034470 WILLOW CREEK ABOVE WILLOW CREEK LAKE, NEAR HEPPNER, OR
LOCATION - Lat 45°20'27", long 119°30'53" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.01, T.3 S., R.26 E., Morrow County, OR, Hydrologic Unit 17070104, on right bank, 1.5 mi southeast of Heppner, 1.7 mi upstream from Willow Creek dam and at mile 54.1.
DRAINAGE AREA - 67.9 mi². revised.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1982 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2,085.41 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers).
REMARKS - Many diversions for irrigation upstream from station. Part of flow of Ditch Creek (John Day River basin) is diverted to Willow Creek upstream from station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,300 ft³/s June 2, 2011, gage height, 11.65 ft; no flow Aug. 11-21, 2000, Aug. 28 to Oct. 6, 2001, July 24 to Sept. 30, 2005, July 15 to Sept. 29, 2021.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD -
WATER TEMPERATURE: June 2009 to current year.
CHEMICAL ANALYSES: May 1985 to September 1987.
INSTRUMENTATION - Temperature probe and data logger.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 28.2°C June 28, 2021; minimum, 0.0°C on many days during most years.
