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USGS Water-Year Summary 2024
01518000 TIOGA RIVER AT TIOGA, PA
LOCATION - Lat 41°54'30", long 77°07'47" referenced to North American Datum of 1927, Tioga County, PA, Hydrologic Unit 02050104, on left bank 130 ft upstream from highway bridge on Township Route 667 at Tioga, 0.8 mi upstream from Crooked Creek, and 0.9 mi downstream from Tioga Dam.
DRAINAGE AREA - 282 mi². (402 mi², including diversion from Crooked Creek and Hammond Reservoir)
REVISIONS HISTORY - WSP 871: 1938.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1938 to current year. Prior to October 1938 monthly discharge only, published in WSP 1302.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,020.59 ft above North American Vertical Datum of 1988 (from benchmark). Prior to Sept. 9, 1953, at site 20 ft upstream at datum 2.11 ft higher. Sept. 9, 1953 to Aug. 10, 1954, at site 130 ft downstream at present datum. Prior to March 12, 2024, the datum of gage was reported as 1,021.07 ft above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Baltimore District, the Pennsylvania Department of Environmental Protection, and the U.S. Geological Survey.
REMARKS - Discharges include flow diverted from Crooked Creek into Tioga River since Oct. 1, 1977. Flow regulated since November 1979 by Tioga Dam (station 01517900). Those data in the set of statistics (subsequent to 1978) represent flow past the gage including streamflow diverted into Tioga River from the adjacent Crooked Creek Basin since October 1977, and are not equivalent to natural streamflow conditions prior to this date. Records are good except for estimated discharge, which are poor.
