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USGS Water-Year Summary 2024
11507500 LINK RIVER AT KLAMATH FALLS, OR
LOCATION - Lat 42°13'25", long 121°47'35" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.32, T.38 S., R.9 E., Klamath County, OR, Hydrologic Unit 18010204, on right bank, 600 ft upstream from outlet of Keno Canal and 0.4 mi upstream from Main Street Bridge at Klamath Falls.
DRAINAGE AREA - 3,810 mi². approximately, including 26.2 mi² in closed basin of Crater Lake.
REVISIONS HISTORY - WYS 2014: 2014.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1961 to current year (Link River only). Records for combined flows (river and Keno Canal) available for period May 1904 to September 1983 under station 11507501.
GAGE - Water-stage recorder. Datum of gage is 4,083.71 ft above NGVD of 1929 or 4,085.50 ft above U.S. Bureau of Reclamation datum. Prior to Sept. 14, 1912, water-stage recorder or nonrecording gage at several sites within 0.5 mi of present site at various datums. Sept. 14, 1912 to Nov. 23, 1923, at site 600 ft downstream at datum 5.42 ft lower. Nov. 24, 1923 to Nov. 15, 1961, at site on left bank at present datum.
REMARKS - Flow regulated since 1919 by Upper Klamath Lake (capacity, 523,700 acre-ft). Large diurnal fluctuation caused by powerplant upstream from station. Water diverted upstream from station by main or "A" Canal of Klamath project. Many other diversions upstream from lake. All records given herein do not include flow in Keno Canal which, since September 1908, has diverted from Upper Klamath Lake at Link River Dam for power generation, and returns flow to Link River downstream from station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 9,400 ft³/s May 12, 1904, gage height at Main Street Bridge, 7.30 ft, datum then in use, from floodmarks; minimum daily discharge, 17 ft³/s Dec. 13, 1937.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 2003 to current year.
INSTRUMENTATION - Temperature probe and data logger.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 28.0°C July 27, 2006; minimum observed, -0.2°C Jan. 5, 2006.
