PROVISIONAL DATA SUBJECT TO REVISION

Station operated in cooperation with PacifiCorp.

11510700  KLAMATH RIVER BELOW JOHN C. BOYLE POWERPLANT, NEAR KENO, OR

LOCATION.--Lat 42° 05'05", long 122° 04'20", in SE 1/4 SE 1/4 sec.14, T.40 S., R.6 E., Klamath 
 County, Hydrologic Unit 18010206, on right bank 0.7 mi downstream from John C. Boyle powerplant, 
 8 mi downstream from Spencer Creek, and 8.5 mi southwest of Keno, and at mile 219.7.
DRAINAGE AREA.--4,080 mi2, approximately (not including Lost River or Lower Klamath Lake basins).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 3,274.82 ft above NGVD of 1929 
 (levels by Pacific Power & Light Co.).
PERIOD OF RECORD.--January 1959 to current year.
REMARKS.--Flow regulated by Upper Klamath Lake (station 11507001). Large diurnal fluctuation caused 
 by Keno and John C. Boyle powerplants. Diversions for irrigation upstream from station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,600 ft3/s Feb. 21, 1996, gage height, 
 9.50 ft; minimum discharge, 283 ft3/s Feb. 17, 1968.
EXTREMES FOR CURRENT YEAR.--Maximum discharge, 3,120 ft3/s Nov. 7, Mar. 4, gage height, 
 5.92 ft; minimum discharge, 354 ft3/s Mar. 13-15, Apr. 16.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.