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USGS Water-Year Summary 2024
14313500 NORTH UMPQUA RIVER BELOW LEMOLO LAKE, NEAR TOKETEE FALLS, OR
LOCATION - Lat 43°19'20", long 122°11'40" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.11, T.26 S., R.5 E., Douglas County, OR, Hydrologic Unit 17100301, Umpqua National Forest, on right bank, 0.4 mi downstream from Lemolo Lake, 13 mi east of town of Toketee Falls and at mile 92.6.
DRAINAGE AREA - 170 mi².
REVISIONS HISTORY - WSP 1448: Drainage area. WDR OR-75-1: 1964(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1927 to December 1945, March 1946 to September 2016. Published as "below Lake Creek" prior to October 1952, as "below Lake Creek, near Toketee Falls" October 1952 to September 1953 and as "below Lemolo Reservoir near Toketee Falls" October 1953 to September 1960. Records for combined flows (river and power canal) available for May 1955 to September 1983 under station 14313501.
GAGE - Water-stage recorder. Elevation of gage is 4,025 ft above NGVD of 1929, from river-profile map. Prior to July 15, 1954, at site 1 mi upstream at datum about 65 ft higher. July 15, 1954 to Sept. 25, 1955, at site 400 ft upstream at datum 14.11 ft higher.
REMARKS - Flow regulated since 1954 by Lemolo Lake (station 14313000) and slightly regulated by Diamond Lake (station 14312450). Records given herein do not include flow in Lemolo No. 1 power canal, which, beginning July 1955, diverts 0.4 mi upstream from station for power generation with return flow 4.3 mi downstream.
EXTREMES FOR PERIOD OF RECORD - River only, maximum discharge, 4,600 ft³/s Dec. 25, 1964, gage height, 9.20 ft, from floodmark, from rating curve extended above 450 ft³/s on basis of slope-area measurement of peak flow; minimum discharge, 6.4 ft³/s July 17, 1954.
