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    ALL DATA ARE EASTERN STANDARD TIME

    USGS 01526500 TIOGA RIVER NEAR ERWINS NY

    PROVISIONAL DATA SUBJECT TO REVISION

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    This station is operated in cooperation with:
       National Weather Service
       NYS Department of Environmental Conservation
       U.S. Army Corps of Engineers - Baltimore District


    LOCATION.--Lat 42°07'16", long 77°07'45" referenced to North American Datum of 1983, Steuben County, NY, Hydrologic Unit 02050104, on right bank 20 ft downstream from bridge on Mulholland Road, 1.1 mi northeast of Erwins, and 1.1 mi downstream from Canisteo River.
    DRAINAGE AREA.--1,377 mi2.
    PERIOD OF RECORD.--July 1918 to current year.
    REVISED RECORDS.--WSP 891: 1935-38. WSP 1672: 1919 (M), 1927 (M), 1929 (M). WSP 2103: Drainage area.
    GAGE.--Water-stage recorder. Datum of gage is 931.24 ft above NGVD of 1929. Prior to June 21, 1931, nonrecording gage on highway bridge at same datum.
    REMARKS.--Records good except those for estimated daily discharges, which are fair. Since November 1979, flood flows regulated by Tioga and Hammond lakes, and since December 1979, by Cowanesque Lake; normal regulation occasionally sufficient to affect figures of monthly runoff. Telephone and satellite gage-height telemeters at station.
    EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, since construction of Tioga, Hammond, and Cowanesque Lakes in 1979, 45,600 ft³/s, Jan. 19, 1996, gage height 16.98 ft; minimum discharge, 52 ft³/s, Oct. 1, 2, 6, 1980.
    EXTREMES FOR PERIOD PRIOR TO REGULATION.--Maximum discharge, prior to construction of Tioga, Hammond, and Cowanesque Lakes in 1979, 190,000 ft³/s, June 23, 1972, gage height, 26.74 ft, from floodmarks, from rating curve extended above 90,000 ft³/s on basis of computation of peak flow at Lindley and Canisteo River at Erwins, 7.2 mi and 2.0 mi upstream, respectively, adjusted for flow from intervening area; minimum discharge, 18 ft³/s, Sept. 2, 3, 1939; minimum gage height, 0.40 ft, Sept. 8, 9, 1954, July 23, Aug. 10, 11, 1955.
    Derived from NY Annual Water-Data Report 2013

    Peak Flow and Stage Information
    This station managed by the NY Water Science Center, Ithaca.

    Available Parameters Available Period
    All 2 Available Parameters for this site
      
    00060 Discharge 2007-10-01  2014-08-22
    00065 Gage height 2014-04-23  2014-08-22

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    Summary of all available data for this site
    Instantaneous-data availability statement


    Discharge, cubic feet per second

    Most recent instantaneous value: 227   08-22-2014  00:00 EST
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    Daily discharge, cubic feet per second -- statistics for Aug 22 based on 34 years of record more
    Min
    (1995)
    25th
    percen-
    tile
    Median Most Recent
    Instantaneous
    Value Aug 22
    75th
    percen-
    tile
    Mean Max
    (1994)
    95 124 158 227 228 678 10200


    Gage height, feet

    Most recent instantaneous value: 0.84   08-22-2014  00:00 EST
    Graph of  Gage height, feet

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