USGS Water-Year Summary 2020
02320500 SUWANNEE RIVER AT BRANFORD, FL
LOCATION - Lat 29°57'20", long 82°55'40" referenced to North American Datum of 1927, in NE 1/4 sec.20, T.6 S., R.14 E., Suwannee County, FL, Hydrologic Unit 03110205, near left bank on downstream side of bridge on U.S. Highway 27 at Branford, 10.2 mi upstream from Santa Fe River, and 75 mi upstream from mouth.
DRAINAGE AREA - 7,880 mi². Includes part of watershed in Okefenokee Swamp which is indeterminate.
- WSP 1905: WDR FL-75-1: Drainage area. WDR FL-96-4:1995.
PERIOD OF RECORD - July 1931 to current year.
GAGE - Water-stage recorder and data-collection platform. Datum of gage is 4.81 ft above National Geodetic Vertical Datum of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of August 1928 reached a stage of 32.0 ft, from floodmark; discharge, 65,000 ft³/s computed on basis of measured crest flow at Ellaville (station 02319500).
PERIOD OF RECORD - Water-quality monitors installed March 1, 2017. Period of record from March 1, 2017 to current year.
COOPERATION - Suwannee River Water Management District.
INSTRUMENTATION - YSI-600R water-quality monitor consisting of temperature and specific conductivity.
EXTREMES FOR PERIOD OF RECORD
Maximum instantaneous value: 28.8 C; July 4, 2017
Minimum instantaneous value: 13.1 C; January 4, 2018
Maximum instantaneous value: 404 uS/cm; October 29, 2019
Minimum instantaneous value: 61 uS/cm; March 16, 2020