USGS Water-Year Summary 2020
07263580 ROCK CREEK AT 36TH STREET AT LITTLE ROCK, AR
LOCATION - Lat 34°43'27", long 92°21'32" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.13, T.1 N., R.13 W., Pulaski County, AR, Hydrologic Unit 11110207, and upstream of West 36th St bridge at Boyle Park footbridge in Little Rock.
DRAINAGE AREA - 20.5 mi².
PERIOD OF RECORD - Oct 1996 to current year. Daily stages and results of discharge measurements for Mar 1970 to Mar 1978 are in the files of the U.S. Army Corps of Engineers. Annual peak stages and discharges for 1978 to 1988 and 1995 to 1996, published in WDR. Daily stages for the 1989 to 1994 water years are in the files of the U.S. Geological Survey.
GAGE - Water-stage recorder. Datum of gage is 260.00 ft above NGVD of 1929. Prior to Oct 2008, water-stage recorder located downstream 0.25 mi at present datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Sep 13, 1978, reached a stage of 18.22 ft, discharge, 22,500 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 6,000 ft³/s Nov 15, 2006 from former location.
Maximum peak stage 15.20 ft May 1, 2011 from new location.