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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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USGS Water-Year Summary 2024
14147500 NORTH FORK OF MIDDLE FORK WILLAMETTE RIVER, NEAR OAKRIDGE, OR
LOCATION - Lat 43°45'25", long 122°30'15" referenced to North American Datum of 1927, Lane County, OR, Hydrologic Unit 17090001, in SW 1/4, sec. 7, T.21 S., R.3 E., on left bank, 2.5 mi northwest of Oakridge and at mile 1.0.
DRAINAGE AREA - 246 mi². at former measuring section 0.5 mi downstream.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1909 to March 1916, September 1935 to September 1985, October 1986 to September 1994, May 2010 to current year (gage heights only). Monthly discharge only for some periods, published in WSP 1318. Prior to October 1912, published as "near Hazeldell."
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,029.6 ft above NGVD of 1929 (river profile survey). See WSP 1738 for history of changes prior to Oct. 1, 1952.
REMARKS - Slight regulation by Waldo Lake; occasional fluctuations during low-water periods caused by log-ponds upstream from station. No diversions upstream from station.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 19.14 ft Dec. 22, 1964, from flood mark; minimum gage height since May 2010, 1.03 ft Sept. 17, 18, 2021.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 2010 to current year.
INSTRUMENTATION - Temperature probe and data logger.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 23.9°C July 2, 2015; minimum, 0.0°C Dec. 8, 9, 2013.
