USGS Water-Year Summary 2022
07327550 LITTLE WASHITA RIVER EAST OF NINNEKAH, OK
LOCATION - Lat 34°57'48", long 97°53'57" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.25, T.6 N., R.7 W., Grady County, OK, Hydrologic Unit 11130302, on downstream left bank at bridge on county road 1.5 mi northeast of East Ninnekah and at mile 3.0.
DRAINAGE AREA - 232 mi². from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.
- WDR 2012: Drainage area.
PERIOD OF RECORD - February 1992 to current year.
GAGE - Water-stage recorder. Datum of gage is 1041.22 above NAVD of 1988 determined by GNSS Level II Survey using Alltera network with RTK Trimble R-10 tied to RM-4 by USGS Personnel on 07-30-2019. Prior to 07-30-2019 elevation of gage was 1,041.16 ft.