USGS Water-Year Summary 2022
07074420 BLACK RIVER AT ELGIN FERRY, AR
LOCATION - Lat 35°45'56", long 91°18'01" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.15, T.13 N., R.3 W., Jackson County, AR, Hydrologic Unit 11010009, and on left bank at State Hwy 37 bridge at Elgin Ferry.
DRAINAGE AREA - 8,420 mi².
PERIOD OF RECORD - Oct 1978 to Sep 1994 annual maximum only. Oct 1994 to Sep 1998 stage-only. Oct 1998 to current year.
GAGE - Water-stage recorder. Datum of gage is 200.00 ft above NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Dec 4, 1982 reached a stage of 27.7 ft, from floodmarks, discharge unknown.
EXTREMES FOR PERIOD OF RECORD - Maximum peak stage 34.77 ft May 4, 2011 from backwater