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USGS Water-Year Summary 2024
03030500 CLARION RIVER NEAR PINEY, PA
LOCATION - Lat 41°11'33", long 79°26'25" referenced to North American Datum of 1927, Clarion County, PA, Hydrologic Unit 05010005, on left bank 0.2 mi downstream from hydroelectric plant, 2.3 mi northeast of Piney, 2.4 mi upstream from Piney Creek, and 3 mi southwest of Clarion.
DRAINAGE AREA - 951 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1944 to current year (monthly discharge only October 1944 to September 1947).
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,001.5 ft above North American Vertical Datum of 1988. Prior to April 5, 2023, the datum of gage was reported as 1,002.06 ft above National Geodetic Vertical Datum of 1929 (Brookfield Renewable Power bench mark). Prior to Dec 23, 1947, records from hydroelectric plant 0.2 mi upstream. Satellite telemetry at station.
COOPERATION - Funding for the operation of this station is provided by Brookfield Power.
REMARKS -
Flow regulated since 1924 by hydroelectric plant at Piney Dam 0.2 mi upstream, and since June 1952 by East Branch Clarion River Lake (station 03027000), combined capacity of reservoirs, 113,200 acre-ft. Maximum peak stage of 28.24 from floodmark.
Record is considered good, except for estimated daily discharge which is poor.
EXTREMES OUTSIDE PERIOD OF RECORD - The flood of Mar 18, 1936 reached a discharge of 50,000 ft³/s, as determined by hydroelectric plant, elevation, 1,028.5 ft, at lower pool of dam.
