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    USGS 02358700 APALACHICOLA RIVER NR BLOUNTSTOWN,FLORIDA

    PROVISIONAL DATA SUBJECT TO REVISION

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    This gage is monitored in cooperation with the US Army Corps of Engineers.

    Link to the US Army Corps of Engineers

    02358700  APALACHICOLA RIVER NEAR BLOUNTSTOWN, FL
    
    LOCATION.--Lat 30°25'30", long 85°01'53", in NE 1/4 sec.3, T.1 S., R.8 W., Calhoun County,
       Hydrologic Unit 03130011, on right bank 500 ft upstream from Neal Lumber Company
       Landing at McNeal, 0.5 mi upstream from Old River cutoff, 1.5 mi southeast of
       Blountstown, and 78 mi upstream from mouth.
    
    DRAINAGE AREA.--17,600 mi2, approximately.
    
    PERIOD OF RECORD.--January 1920 to September 1957 gage-height records collected in this
       vicinity by the National Weather Service are in the files of the Geological Survey.
       Miscellaneous discharge measurements from some periods August 1938 to August 1957 are
       in files of the U.S. Army Corps of Engineers, Mobile, Alabama District. October 1957 to
       current year.
    
    GAGE.--Water-stage recorder. Datum of gage is 26.96 ft above National Geodetic Vertical
       Datum of 1929 (National Weather Service benchmark). Prior to Sept. 17, 1921,
       nonrecording gage near present site at different datum. Sept. 17, 1921 to
       Aug. 28, 1957, nonrecording gage at several sites within 500 ft of present site at
       present datum. Since Aug. 26, 1960, auxiliary nonrecording gage at site 2.2 mi upstream
       at bridge on State Highway 20, at present datum.
    
    COOPERATION.--Records from October 1957 to current year, were collected and computed by
       the U.S. Army Corps of Engineers and were reviewed by the Geological Survey.
    
    EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 266,000 ft3/s, Mar. 13, 1998;
       maximum gage height, 27.23 ft, Mar. 13, 1998; minimum daily discharge, 4,680 ft3/s
       (estimated), Aug. 3, 1986.
    
    EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since at least 1920, 28.6 ft present
       datum, Mar. 21, 1929, discharge not determined, from National Weather Service records.
    
    
    
    Available Parameters Available Period
    All 2 Available Parameters for this site
      
    00060 Discharge, MAIN CHANNEL ONLY 2011-10-01  2014-09-02
    00065 Gage height, MAIN CHANNEL ONLY 2011-10-01  2014-09-02

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


    Discharge, cubic feet per second, MAIN CHANNEL ONLY

    Most recent instantaneous value: 6,430   09-02-2014  16:15 CDT
    Graph of  Discharge, cubic feet per second, MAIN CHANNEL ONLY

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    Daily discharge, cubic feet per second -- statistics for Sep 2 based on 54 years of record more
    Min
    (2011)
    Most Recent
    Instantaneous
    Value Sep 2
    25th
    percen-
    tile
    Median Mean 75th
    percen-
    tile
    Max
    (2005)
    5530 6430 8650 12700 12800 15100 28600


    Gage height, feet, MAIN CHANNEL ONLY

    Most recent instantaneous value: 1.45   09-02-2014  16:15 CDT
    Graph of  Gage height, feet, MAIN CHANNEL ONLY

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