USGS Water-Year Summary 2024
12114500 CEDAR RIVER BELOW BEAR CREEK, NEAR CEDAR FALLS, WA
LOCATION - Lat 47°20'32", long 121°32'52" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.32, T.22 N., R.10 E., King County, WA, Hydrologic Unit 17110012, on right bank 500 ft downstream from Bear Creek, and 12.2 mi southeast of town of Cedar Falls.
DRAINAGE AREA - 25.4 mi².
REVISIONS HISTORY - WSP 1716: 1956-57(M), 1959(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1945 to December 1963, October 1975 to current year.
GAGE - Water-stage recorder. Elevation of gage is 1,880 ft above NGVD of 1929 (from topographic map) and is 1,882.78 ft above NAVD of 1988 (from USGS GNSS survey, July 21, 2022). Prior to Sept. 16, 1960, at site 90 ft upstream at datum 2.35 ft higher.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 7,620 ft³/s, Nov. 22, 1959, gage height, 6.98 ft, site and datum then in use, from rating curve extended above 890 ft³/s on basis of slope-area measurement of peak flow; minimum discharge, 12 ft³/s, Nov. 27, 1952.
WATER-QUALITY RECORDS
PERIOD OF RECORD - WATER TEMPERATURE: September 2019 to current year.
INSTRUMENTATION - Temperature recorder with 15 minute logging interval, since September 2019.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE: Maximum, 16.0°C, August 15, 2023; minimum, 0.0°C, Feb. 11, 2019.